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@@ -1,1496 +0,0 @@
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-/*
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- * Copyright (c) 2002 Bob Beck <beck@openbsd.org>
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- * Copyright (c) 2002 Theo de Raadt
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- * Copyright (c) 2002 Markus Friedl
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- * Copyright (c) 2012 Nikos Mavrogiannopoulos
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- * All rights reserved.
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- *
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- * Redistribution and use in source and binary forms, with or without
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- * modification, are permitted provided that the following conditions
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- * are met:
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- * 1. Redistributions of source code must retain the above copyright
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- * notice, this list of conditions and the following disclaimer.
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- * 2. Redistributions in binary form must reproduce the above copyright
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- * notice, this list of conditions and the following disclaimer in the
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- * documentation and/or other materials provided with the distribution.
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- *
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- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
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- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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- * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY
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- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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- *
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- */
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-
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-#include <openssl/objects.h>
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-#include <openssl/engine.h>
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-#include <openssl/evp.h>
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-#include <openssl/bn.h>
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-
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-#if (defined(__unix__) || defined(unix)) && !defined(USG) && \
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- (defined(OpenBSD) || defined(__FreeBSD__))
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-#include <sys/param.h>
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-# if (OpenBSD >= 200112) || ((__FreeBSD_version >= 470101 && __FreeBSD_version < 500000) || __FreeBSD_version >= 500041)
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-# define HAVE_CRYPTODEV
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-# endif
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-# if (OpenBSD >= 200110)
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-# define HAVE_SYSLOG_R
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-# endif
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-#endif
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-
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-#ifndef HAVE_CRYPTODEV
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-
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-void
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-ENGINE_load_cryptodev(void)
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-{
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- /* This is a NOP on platforms without /dev/crypto */
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- return;
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-}
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-
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-#else
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-
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-#include <sys/types.h>
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-#include <crypto/cryptodev.h>
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-#include <crypto/dh/dh.h>
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-#include <crypto/dsa/dsa.h>
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-#include <crypto/err/err.h>
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-#include <crypto/rsa/rsa.h>
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-#include <sys/ioctl.h>
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-#include <errno.h>
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-#include <stdio.h>
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-#include <unistd.h>
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-#include <fcntl.h>
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-#include <stdarg.h>
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-#include <syslog.h>
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-#include <errno.h>
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-#include <string.h>
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-
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-struct dev_crypto_state {
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- struct session_op d_sess;
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- int d_fd;
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-
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-#ifdef USE_CRYPTODEV_DIGESTS
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- unsigned char digest_res[64];
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- char *mac_data;
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- int mac_len;
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-#endif
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-};
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-
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-static u_int32_t cryptodev_asymfeat = 0;
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-
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-static int get_asym_dev_crypto(void);
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-static int open_dev_crypto(void);
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-static int get_dev_crypto(void);
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-static int get_cryptodev_ciphers(const int **cnids);
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-#ifdef USE_CRYPTODEV_DIGESTS
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-static int get_cryptodev_digests(const int **cnids);
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-#endif
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-static int cryptodev_usable_ciphers(const int **nids);
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-static int cryptodev_usable_digests(const int **nids);
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-static int cryptodev_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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- const unsigned char *in, size_t inl);
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-static int cryptodev_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
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- const unsigned char *iv, int enc);
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-static int cryptodev_cleanup(EVP_CIPHER_CTX *ctx);
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-static int cryptodev_engine_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
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- const int **nids, int nid);
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-static int cryptodev_engine_digests(ENGINE *e, const EVP_MD **digest,
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- const int **nids, int nid);
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-static int bn2crparam(const BIGNUM *a, struct crparam *crp);
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-static int crparam2bn(struct crparam *crp, BIGNUM *a);
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-static void zapparams(struct crypt_kop *kop);
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-static int cryptodev_asym(struct crypt_kop *kop, int rlen, BIGNUM *r,
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- int slen, BIGNUM *s);
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-
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-static int cryptodev_bn_mod_exp(BIGNUM *r, const BIGNUM *a,
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- const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
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-static int cryptodev_rsa_nocrt_mod_exp(BIGNUM *r0, const BIGNUM *I,
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- RSA *rsa, BN_CTX *ctx);
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-static int cryptodev_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx);
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-static int cryptodev_dsa_bn_mod_exp(DSA *dsa, BIGNUM *r, BIGNUM *a,
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- const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
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-static int cryptodev_dsa_dsa_mod_exp(DSA *dsa, BIGNUM *t1, BIGNUM *g,
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- BIGNUM *u1, BIGNUM *pub_key, BIGNUM *u2, BIGNUM *p,
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- BN_CTX *ctx, BN_MONT_CTX *mont);
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-static DSA_SIG *cryptodev_dsa_do_sign(const unsigned char *dgst,
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- int dlen, DSA *dsa);
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-static int cryptodev_dsa_verify(const unsigned char *dgst, int dgst_len,
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- DSA_SIG *sig, DSA *dsa);
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-static int cryptodev_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
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- const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
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- BN_MONT_CTX *m_ctx);
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-static int cryptodev_dh_compute_key(unsigned char *key,
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- const BIGNUM *pub_key, DH *dh);
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-static int cryptodev_ctrl(ENGINE *e, int cmd, long i, void *p,
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- void (*f)(void));
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-void ENGINE_load_cryptodev(void);
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-
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-static const ENGINE_CMD_DEFN cryptodev_defns[] = {
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- { 0, NULL, NULL, 0 }
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-};
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-
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-static struct {
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- int id;
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- int nid;
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- int ivmax;
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- int keylen;
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-} ciphers[] = {
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- { CRYPTO_ARC4, NID_rc4, 0, 16, },
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- { CRYPTO_DES_CBC, NID_des_cbc, 8, 8, },
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- { CRYPTO_3DES_CBC, NID_des_ede3_cbc, 8, 24, },
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- { CRYPTO_AES_CBC, NID_aes_128_cbc, 16, 16, },
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- { CRYPTO_AES_CBC, NID_aes_192_cbc, 16, 24, },
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- { CRYPTO_AES_CBC, NID_aes_256_cbc, 16, 32, },
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- { CRYPTO_BLF_CBC, NID_bf_cbc, 8, 16, },
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- { CRYPTO_CAST_CBC, NID_cast5_cbc, 8, 16, },
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- { CRYPTO_SKIPJACK_CBC, NID_undef, 0, 0, },
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- { 0, NID_undef, 0, 0, },
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-};
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-
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-#ifdef USE_CRYPTODEV_DIGESTS
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-static struct {
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- int id;
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- int nid;
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- int digestlen;
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-} digests[] = {
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-#if 0
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- /* HMAC is not supported */
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- { CRYPTO_MD5_HMAC, NID_hmacWithMD5, 16},
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- { CRYPTO_SHA1_HMAC, NID_hmacWithSHA1, 20},
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- { CRYPTO_SHA2_256_HMAC, NID_hmacWithSHA256, 32},
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- { CRYPTO_SHA2_384_HMAC, NID_hmacWithSHA384, 48},
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- { CRYPTO_SHA2_512_HMAC, NID_hmacWithSHA512, 64},
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-#endif
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- { CRYPTO_MD5, NID_md5, 16},
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- { CRYPTO_SHA1, NID_sha1, 20},
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- { CRYPTO_SHA2_256, NID_sha256, 32},
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- { CRYPTO_SHA2_384, NID_sha384, 48},
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- { CRYPTO_SHA2_512, NID_sha512, 64},
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- { 0, NID_undef, 0},
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-};
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-#endif
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-
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-/*
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- * Return a fd if /dev/crypto seems usable, 0 otherwise.
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- */
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-static int
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-open_dev_crypto(void)
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-{
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- static int fd = -1;
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-
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- if (fd == -1) {
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- if ((fd = open("/dev/crypto", O_RDWR, 0)) == -1)
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- return (-1);
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- /* close on exec */
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- if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1) {
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- close(fd);
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- fd = -1;
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- return (-1);
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- }
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- }
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- return (fd);
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-}
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-
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-static int
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-get_dev_crypto(void)
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-{
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- int fd, retfd;
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-
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- if ((fd = open_dev_crypto()) == -1)
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- return (-1);
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-#ifndef CRIOGET_NOT_NEEDED
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- if (ioctl(fd, CRIOGET, &retfd) == -1)
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- return (-1);
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-
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- /* close on exec */
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- if (fcntl(retfd, F_SETFD, 1) == -1) {
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- close(retfd);
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- return (-1);
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- }
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-#else
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- retfd = fd;
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-#endif
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- return (retfd);
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-}
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-
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-static void put_dev_crypto(int fd)
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-{
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-#ifndef CRIOGET_NOT_NEEDED
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- close(fd);
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-#endif
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-}
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-
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-/* Caching version for asym operations */
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-static int
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-get_asym_dev_crypto(void)
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-{
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- static int fd = -1;
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-
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- if (fd == -1)
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- fd = get_dev_crypto();
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- return fd;
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-}
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-
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-/*
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- * Find out what ciphers /dev/crypto will let us have a session for.
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- * XXX note, that some of these openssl doesn't deal with yet!
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- * returning them here is harmless, as long as we return NULL
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- * when asked for a handler in the cryptodev_engine_ciphers routine
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- */
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-static int
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-get_cryptodev_ciphers(const int **cnids)
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-{
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- static int nids[CRYPTO_ALGORITHM_MAX];
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- struct session_op sess;
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- int fd, i, count = 0;
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- unsigned char fake_key[EVP_MAX_KEY_LENGTH];
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-
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- if ((fd = get_dev_crypto()) < 0) {
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- *cnids = NULL;
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- return (0);
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- }
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- memset(&sess, 0, sizeof(sess));
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- sess.key = (void*)fake_key;
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-
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- for (i = 0; ciphers[i].id && count < CRYPTO_ALGORITHM_MAX; i++) {
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- if (ciphers[i].nid == NID_undef)
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- continue;
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- sess.cipher = ciphers[i].id;
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- sess.keylen = ciphers[i].keylen;
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- sess.mac = 0;
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- if (ioctl(fd, CIOCGSESSION, &sess) != -1 &&
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- ioctl(fd, CIOCFSESSION, &sess.ses) != -1)
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- nids[count++] = ciphers[i].nid;
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- }
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- put_dev_crypto(fd);
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-
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- if (count > 0)
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- *cnids = nids;
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- else
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- *cnids = NULL;
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- return (count);
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-}
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-
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-#ifdef USE_CRYPTODEV_DIGESTS
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-/*
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- * Find out what digests /dev/crypto will let us have a session for.
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- * XXX note, that some of these openssl doesn't deal with yet!
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- * returning them here is harmless, as long as we return NULL
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- * when asked for a handler in the cryptodev_engine_digests routine
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- */
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-static int
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-get_cryptodev_digests(const int **cnids)
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-{
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- static int nids[CRYPTO_ALGORITHM_MAX];
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- unsigned char fake_key[EVP_MAX_KEY_LENGTH];
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- struct session_op sess;
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- int fd, i, count = 0;
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-
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- if ((fd = get_dev_crypto()) < 0) {
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- *cnids = NULL;
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- return (0);
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- }
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- memset(&sess, 0, sizeof(sess));
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- sess.mackey = fake_key;
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- for (i = 0; digests[i].id && count < CRYPTO_ALGORITHM_MAX; i++) {
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- if (digests[i].nid == NID_undef)
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- continue;
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- sess.mac = digests[i].id;
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- sess.mackeylen = 8;
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- sess.cipher = 0;
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- if (ioctl(fd, CIOCGSESSION, &sess) != -1 &&
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- ioctl(fd, CIOCFSESSION, &sess.ses) != -1)
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- nids[count++] = digests[i].nid;
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- }
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- put_dev_crypto(fd);
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-
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- if (count > 0)
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- *cnids = nids;
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- else
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- *cnids = NULL;
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- return (count);
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-}
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-#endif /* 0 */
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-
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-/*
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- * Find the useable ciphers|digests from dev/crypto - this is the first
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- * thing called by the engine init crud which determines what it
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- * can use for ciphers from this engine. We want to return
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- * only what we can do, anythine else is handled by software.
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- *
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- * If we can't initialize the device to do anything useful for
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- * any reason, we want to return a NULL array, and 0 length,
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- * which forces everything to be done is software. By putting
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- * the initalization of the device in here, we ensure we can
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- * use this engine as the default, and if for whatever reason
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- * /dev/crypto won't do what we want it will just be done in
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- * software
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- *
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- * This can (should) be greatly expanded to perhaps take into
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- * account speed of the device, and what we want to do.
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- * (although the disabling of particular alg's could be controlled
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- * by the device driver with sysctl's.) - this is where we
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- * want most of the decisions made about what we actually want
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- * to use from /dev/crypto.
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- */
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-static int
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-cryptodev_usable_ciphers(const int **nids)
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-{
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- return (get_cryptodev_ciphers(nids));
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-}
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-
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-static int
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-cryptodev_usable_digests(const int **nids)
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-{
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-#ifdef USE_CRYPTODEV_DIGESTS
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- return (get_cryptodev_digests(nids));
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-#else
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- /*
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- * XXXX just disable all digests for now, because it sucks.
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- * we need a better way to decide this - i.e. I may not
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- * want digests on slow cards like hifn on fast machines,
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- * but might want them on slow or loaded machines, etc.
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- * will also want them when using crypto cards that don't
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- * suck moose gonads - would be nice to be able to decide something
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- * as reasonable default without having hackery that's card dependent.
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- * of course, the default should probably be just do everything,
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- * with perhaps a sysctl to turn algoritms off (or have them off
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- * by default) on cards that generally suck like the hifn.
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- */
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- *nids = NULL;
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- return (0);
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-#endif
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-}
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-
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-static int
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-cryptodev_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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- const unsigned char *in, size_t inl)
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-{
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- struct crypt_op cryp;
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- struct dev_crypto_state *state = ctx->cipher_data;
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|
- struct session_op *sess = &state->d_sess;
|
|
|
- const void *iiv;
|
|
|
- unsigned char save_iv[EVP_MAX_IV_LENGTH];
|
|
|
-
|
|
|
- if (state->d_fd < 0)
|
|
|
- return (0);
|
|
|
- if (!inl)
|
|
|
- return (1);
|
|
|
- if ((inl % ctx->cipher->block_size) != 0)
|
|
|
- return (0);
|
|
|
-
|
|
|
- memset(&cryp, 0, sizeof(cryp));
|
|
|
-
|
|
|
- cryp.ses = sess->ses;
|
|
|
- cryp.flags = 0;
|
|
|
- cryp.len = inl;
|
|
|
- cryp.src = (void*) in;
|
|
|
- cryp.dst = (void*) out;
|
|
|
- cryp.mac = 0;
|
|
|
-
|
|
|
- cryp.op = ctx->encrypt ? COP_ENCRYPT : COP_DECRYPT;
|
|
|
-
|
|
|
- if (ctx->cipher->iv_len) {
|
|
|
- cryp.iv = (void*) ctx->iv;
|
|
|
- if (!ctx->encrypt) {
|
|
|
- iiv = in + inl - ctx->cipher->iv_len;
|
|
|
- memcpy(save_iv, iiv, ctx->cipher->iv_len);
|
|
|
- }
|
|
|
- } else
|
|
|
- cryp.iv = NULL;
|
|
|
-
|
|
|
- if (ioctl(state->d_fd, CIOCCRYPT, &cryp) == -1) {
|
|
|
- /* XXX need better errror handling
|
|
|
- * this can fail for a number of different reasons.
|
|
|
- */
|
|
|
- return (0);
|
|
|
- }
|
|
|
-
|
|
|
- if (ctx->cipher->iv_len) {
|
|
|
- if (ctx->encrypt)
|
|
|
- iiv = out + inl - ctx->cipher->iv_len;
|
|
|
- else
|
|
|
- iiv = save_iv;
|
|
|
- memcpy(ctx->iv, iiv, ctx->cipher->iv_len);
|
|
|
- }
|
|
|
- return (1);
|
|
|
-}
|
|
|
-
|
|
|
-static int
|
|
|
-cryptodev_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
|
|
|
- const unsigned char *iv, int enc)
|
|
|
-{
|
|
|
- struct dev_crypto_state *state = ctx->cipher_data;
|
|
|
- struct session_op *sess = &state->d_sess;
|
|
|
- int cipher = -1, i;
|
|
|
-
|
|
|
- for (i = 0; ciphers[i].id; i++)
|
|
|
- if (ctx->cipher->nid == ciphers[i].nid &&
|
|
|
- ctx->cipher->iv_len <= ciphers[i].ivmax &&
|
|
|
- ctx->key_len == ciphers[i].keylen) {
|
|
|
- cipher = ciphers[i].id;
|
|
|
- break;
|
|
|
- }
|
|
|
-
|
|
|
- if (!ciphers[i].id) {
|
|
|
- state->d_fd = -1;
|
|
|
- return (0);
|
|
|
- }
|
|
|
-
|
|
|
- memset(sess, 0, sizeof(struct session_op));
|
|
|
-
|
|
|
- if ((state->d_fd = get_dev_crypto()) < 0)
|
|
|
- return (0);
|
|
|
-
|
|
|
- sess->key = (void*)key;
|
|
|
- sess->keylen = ctx->key_len;
|
|
|
- sess->cipher = cipher;
|
|
|
-
|
|
|
- if (ioctl(state->d_fd, CIOCGSESSION, sess) == -1) {
|
|
|
- put_dev_crypto(state->d_fd);
|
|
|
- state->d_fd = -1;
|
|
|
- return (0);
|
|
|
- }
|
|
|
- return (1);
|
|
|
-}
|
|
|
-
|
|
|
-/*
|
|
|
- * free anything we allocated earlier when initting a
|
|
|
- * session, and close the session.
|
|
|
- */
|
|
|
-static int
|
|
|
-cryptodev_cleanup(EVP_CIPHER_CTX *ctx)
|
|
|
-{
|
|
|
- int ret = 0;
|
|
|
- struct dev_crypto_state *state = ctx->cipher_data;
|
|
|
- struct session_op *sess = &state->d_sess;
|
|
|
-
|
|
|
- if (state->d_fd < 0)
|
|
|
- return (0);
|
|
|
-
|
|
|
- /* XXX if this ioctl fails, someting's wrong. the invoker
|
|
|
- * may have called us with a bogus ctx, or we could
|
|
|
- * have a device that for whatever reason just doesn't
|
|
|
- * want to play ball - it's not clear what's right
|
|
|
- * here - should this be an error? should it just
|
|
|
- * increase a counter, hmm. For right now, we return
|
|
|
- * 0 - I don't believe that to be "right". we could
|
|
|
- * call the gorpy openssl lib error handlers that
|
|
|
- * print messages to users of the library. hmm..
|
|
|
- */
|
|
|
-
|
|
|
- if (ioctl(state->d_fd, CIOCFSESSION, &sess->ses) == -1) {
|
|
|
- ret = 0;
|
|
|
- } else {
|
|
|
- ret = 1;
|
|
|
- }
|
|
|
- put_dev_crypto(state->d_fd);
|
|
|
- state->d_fd = -1;
|
|
|
-
|
|
|
- return (ret);
|
|
|
-}
|
|
|
-
|
|
|
-/*
|
|
|
- * libcrypto EVP stuff - this is how we get wired to EVP so the engine
|
|
|
- * gets called when libcrypto requests a cipher NID.
|
|
|
- */
|
|
|
-
|
|
|
-/* RC4 */
|
|
|
-const EVP_CIPHER cryptodev_rc4 = {
|
|
|
- NID_rc4,
|
|
|
- 1, 16, 0,
|
|
|
- EVP_CIPH_VARIABLE_LENGTH,
|
|
|
- cryptodev_init_key,
|
|
|
- cryptodev_cipher,
|
|
|
- cryptodev_cleanup,
|
|
|
- sizeof(struct dev_crypto_state),
|
|
|
- NULL,
|
|
|
- NULL,
|
|
|
- NULL
|
|
|
-};
|
|
|
-
|
|
|
-/* DES CBC EVP */
|
|
|
-const EVP_CIPHER cryptodev_des_cbc = {
|
|
|
- NID_des_cbc,
|
|
|
- 8, 8, 8,
|
|
|
- EVP_CIPH_CBC_MODE,
|
|
|
- cryptodev_init_key,
|
|
|
- cryptodev_cipher,
|
|
|
- cryptodev_cleanup,
|
|
|
- sizeof(struct dev_crypto_state),
|
|
|
- EVP_CIPHER_set_asn1_iv,
|
|
|
- EVP_CIPHER_get_asn1_iv,
|
|
|
- NULL
|
|
|
-};
|
|
|
-
|
|
|
-/* 3DES CBC EVP */
|
|
|
-const EVP_CIPHER cryptodev_3des_cbc = {
|
|
|
- NID_des_ede3_cbc,
|
|
|
- 8, 24, 8,
|
|
|
- EVP_CIPH_CBC_MODE,
|
|
|
- cryptodev_init_key,
|
|
|
- cryptodev_cipher,
|
|
|
- cryptodev_cleanup,
|
|
|
- sizeof(struct dev_crypto_state),
|
|
|
- EVP_CIPHER_set_asn1_iv,
|
|
|
- EVP_CIPHER_get_asn1_iv,
|
|
|
- NULL
|
|
|
-};
|
|
|
-
|
|
|
-const EVP_CIPHER cryptodev_bf_cbc = {
|
|
|
- NID_bf_cbc,
|
|
|
- 8, 16, 8,
|
|
|
- EVP_CIPH_CBC_MODE,
|
|
|
- cryptodev_init_key,
|
|
|
- cryptodev_cipher,
|
|
|
- cryptodev_cleanup,
|
|
|
- sizeof(struct dev_crypto_state),
|
|
|
- EVP_CIPHER_set_asn1_iv,
|
|
|
- EVP_CIPHER_get_asn1_iv,
|
|
|
- NULL
|
|
|
-};
|
|
|
-
|
|
|
-const EVP_CIPHER cryptodev_cast_cbc = {
|
|
|
- NID_cast5_cbc,
|
|
|
- 8, 16, 8,
|
|
|
- EVP_CIPH_CBC_MODE,
|
|
|
- cryptodev_init_key,
|
|
|
- cryptodev_cipher,
|
|
|
- cryptodev_cleanup,
|
|
|
- sizeof(struct dev_crypto_state),
|
|
|
- EVP_CIPHER_set_asn1_iv,
|
|
|
- EVP_CIPHER_get_asn1_iv,
|
|
|
- NULL
|
|
|
-};
|
|
|
-
|
|
|
-const EVP_CIPHER cryptodev_aes_cbc = {
|
|
|
- NID_aes_128_cbc,
|
|
|
- 16, 16, 16,
|
|
|
- EVP_CIPH_CBC_MODE,
|
|
|
- cryptodev_init_key,
|
|
|
- cryptodev_cipher,
|
|
|
- cryptodev_cleanup,
|
|
|
- sizeof(struct dev_crypto_state),
|
|
|
- EVP_CIPHER_set_asn1_iv,
|
|
|
- EVP_CIPHER_get_asn1_iv,
|
|
|
- NULL
|
|
|
-};
|
|
|
-
|
|
|
-const EVP_CIPHER cryptodev_aes_192_cbc = {
|
|
|
- NID_aes_192_cbc,
|
|
|
- 16, 24, 16,
|
|
|
- EVP_CIPH_CBC_MODE,
|
|
|
- cryptodev_init_key,
|
|
|
- cryptodev_cipher,
|
|
|
- cryptodev_cleanup,
|
|
|
- sizeof(struct dev_crypto_state),
|
|
|
- EVP_CIPHER_set_asn1_iv,
|
|
|
- EVP_CIPHER_get_asn1_iv,
|
|
|
- NULL
|
|
|
-};
|
|
|
-
|
|
|
-const EVP_CIPHER cryptodev_aes_256_cbc = {
|
|
|
- NID_aes_256_cbc,
|
|
|
- 16, 32, 16,
|
|
|
- EVP_CIPH_CBC_MODE,
|
|
|
- cryptodev_init_key,
|
|
|
- cryptodev_cipher,
|
|
|
- cryptodev_cleanup,
|
|
|
- sizeof(struct dev_crypto_state),
|
|
|
- EVP_CIPHER_set_asn1_iv,
|
|
|
- EVP_CIPHER_get_asn1_iv,
|
|
|
- NULL
|
|
|
-};
|
|
|
-
|
|
|
-/*
|
|
|
- * Registered by the ENGINE when used to find out how to deal with
|
|
|
- * a particular NID in the ENGINE. this says what we'll do at the
|
|
|
- * top level - note, that list is restricted by what we answer with
|
|
|
- */
|
|
|
-static int
|
|
|
-cryptodev_engine_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
|
|
|
- const int **nids, int nid)
|
|
|
-{
|
|
|
- if (!cipher)
|
|
|
- return (cryptodev_usable_ciphers(nids));
|
|
|
-
|
|
|
- switch (nid) {
|
|
|
- case NID_rc4:
|
|
|
- *cipher = &cryptodev_rc4;
|
|
|
- break;
|
|
|
- case NID_des_ede3_cbc:
|
|
|
- *cipher = &cryptodev_3des_cbc;
|
|
|
- break;
|
|
|
- case NID_des_cbc:
|
|
|
- *cipher = &cryptodev_des_cbc;
|
|
|
- break;
|
|
|
- case NID_bf_cbc:
|
|
|
- *cipher = &cryptodev_bf_cbc;
|
|
|
- break;
|
|
|
- case NID_cast5_cbc:
|
|
|
- *cipher = &cryptodev_cast_cbc;
|
|
|
- break;
|
|
|
- case NID_aes_128_cbc:
|
|
|
- *cipher = &cryptodev_aes_cbc;
|
|
|
- break;
|
|
|
- case NID_aes_192_cbc:
|
|
|
- *cipher = &cryptodev_aes_192_cbc;
|
|
|
- break;
|
|
|
- case NID_aes_256_cbc:
|
|
|
- *cipher = &cryptodev_aes_256_cbc;
|
|
|
- break;
|
|
|
- default:
|
|
|
- *cipher = NULL;
|
|
|
- break;
|
|
|
- }
|
|
|
- return (*cipher != NULL);
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-#ifdef USE_CRYPTODEV_DIGESTS
|
|
|
-
|
|
|
-/* convert digest type to cryptodev */
|
|
|
-static int
|
|
|
-digest_nid_to_cryptodev(int nid)
|
|
|
-{
|
|
|
- int i;
|
|
|
-
|
|
|
- for (i = 0; digests[i].id; i++)
|
|
|
- if (digests[i].nid == nid)
|
|
|
- return (digests[i].id);
|
|
|
- return (0);
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static int cryptodev_digest_init(EVP_MD_CTX *ctx)
|
|
|
-{
|
|
|
- struct dev_crypto_state *state = ctx->md_data;
|
|
|
- struct session_op *sess = &state->d_sess;
|
|
|
- int digest;
|
|
|
-
|
|
|
- if ((digest = digest_nid_to_cryptodev(ctx->digest->type)) == NID_undef){
|
|
|
- printf("cryptodev_digest_init: Can't get digest \n");
|
|
|
- return (0);
|
|
|
- }
|
|
|
- memset(state, 0, sizeof(struct dev_crypto_state));
|
|
|
-
|
|
|
- if ((state->d_fd = get_dev_crypto()) < 0) {
|
|
|
- printf("cryptodev_digest_init: Can't get Dev \n");
|
|
|
- return (0);
|
|
|
- }
|
|
|
-
|
|
|
- sess->mackey = NULL;
|
|
|
- sess->mackeylen = 0;
|
|
|
- sess->mac = digest;
|
|
|
-
|
|
|
- if (ioctl(state->d_fd, CIOCGSESSION, sess) < 0) {
|
|
|
- put_dev_crypto(state->d_fd);
|
|
|
- state->d_fd = -1;
|
|
|
- printf("cryptodev_digest_init: Open session failed\n");
|
|
|
- return (0);
|
|
|
- }
|
|
|
-
|
|
|
- return (1);
|
|
|
-}
|
|
|
-
|
|
|
-static int cryptodev_digest_update(EVP_MD_CTX *ctx, const void *data,
|
|
|
- size_t count)
|
|
|
-{
|
|
|
- struct dev_crypto_state *state = ctx->md_data;
|
|
|
- struct crypt_op cryp;
|
|
|
- struct session_op *sess = &state->d_sess;
|
|
|
-
|
|
|
- if (!data || state->d_fd < 0) {
|
|
|
- printf("cryptodev_digest_update: illegal inputs \n");
|
|
|
- return (0);
|
|
|
- }
|
|
|
-
|
|
|
- if (!count) {
|
|
|
- return (1);
|
|
|
- }
|
|
|
-
|
|
|
- if (!(ctx->flags & EVP_MD_CTX_FLAG_ONESHOT)) {
|
|
|
- /* if application doesn't support one buffer */
|
|
|
- state->mac_data = OPENSSL_realloc(state->mac_data, state->mac_len + count);
|
|
|
-
|
|
|
- if (!state->mac_data) {
|
|
|
- printf("cryptodev_digest_update: realloc failed\n");
|
|
|
- return (0);
|
|
|
- }
|
|
|
-
|
|
|
- memcpy(state->mac_data + state->mac_len, data, count);
|
|
|
- state->mac_len += count;
|
|
|
-
|
|
|
- return (1);
|
|
|
- }
|
|
|
-
|
|
|
- memset(&cryp, 0, sizeof(cryp));
|
|
|
-
|
|
|
- cryp.ses = sess->ses;
|
|
|
- cryp.flags = 0;
|
|
|
- cryp.len = count;
|
|
|
- cryp.src = (void*) data;
|
|
|
- cryp.dst = NULL;
|
|
|
- cryp.mac = (void*) state->digest_res;
|
|
|
- if (ioctl(state->d_fd, CIOCCRYPT, &cryp) < 0) {
|
|
|
- printf("cryptodev_digest_update: digest failed\n");
|
|
|
- return (0);
|
|
|
- }
|
|
|
- return (1);
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static int cryptodev_digest_final(EVP_MD_CTX *ctx, unsigned char *md)
|
|
|
-{
|
|
|
- struct crypt_op cryp;
|
|
|
- struct dev_crypto_state *state = ctx->md_data;
|
|
|
- struct session_op *sess = &state->d_sess;
|
|
|
-
|
|
|
- if (!md || state->d_fd < 0) {
|
|
|
- printf("cryptodev_digest_final: illegal input\n");
|
|
|
- return(0);
|
|
|
- }
|
|
|
-
|
|
|
- if (! (ctx->flags & EVP_MD_CTX_FLAG_ONESHOT) ) {
|
|
|
- /* if application doesn't support one buffer */
|
|
|
- memset(&cryp, 0, sizeof(cryp));
|
|
|
- cryp.ses = sess->ses;
|
|
|
- cryp.flags = 0;
|
|
|
- cryp.len = state->mac_len;
|
|
|
- cryp.src = state->mac_data;
|
|
|
- cryp.dst = NULL;
|
|
|
- cryp.mac = (void*)md;
|
|
|
- if (ioctl(state->d_fd, CIOCCRYPT, &cryp) < 0) {
|
|
|
- printf("cryptodev_digest_final: digest failed\n");
|
|
|
- return (0);
|
|
|
- }
|
|
|
-
|
|
|
- return 1;
|
|
|
- }
|
|
|
-
|
|
|
- memcpy(md, state->digest_res, ctx->digest->md_size);
|
|
|
-
|
|
|
- return 1;
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static int cryptodev_digest_cleanup(EVP_MD_CTX *ctx)
|
|
|
-{
|
|
|
- int ret = 1;
|
|
|
- struct dev_crypto_state *state = ctx->md_data;
|
|
|
- struct session_op *sess = &state->d_sess;
|
|
|
-
|
|
|
- if (state == NULL)
|
|
|
- return 0;
|
|
|
-
|
|
|
- if (state->d_fd < 0) {
|
|
|
- printf("cryptodev_digest_cleanup: illegal input\n");
|
|
|
- return (0);
|
|
|
- }
|
|
|
-
|
|
|
- if (state->mac_data) {
|
|
|
- OPENSSL_free(state->mac_data);
|
|
|
- state->mac_data = NULL;
|
|
|
- state->mac_len = 0;
|
|
|
- }
|
|
|
-
|
|
|
- if (ioctl(state->d_fd, CIOCFSESSION, &sess->ses) < 0) {
|
|
|
- printf("cryptodev_digest_cleanup: failed to close session\n");
|
|
|
- ret = 0;
|
|
|
- } else {
|
|
|
- ret = 1;
|
|
|
- }
|
|
|
- put_dev_crypto(state->d_fd);
|
|
|
- state->d_fd = -1;
|
|
|
-
|
|
|
- return (ret);
|
|
|
-}
|
|
|
-
|
|
|
-static int cryptodev_digest_copy(EVP_MD_CTX *to,const EVP_MD_CTX *from)
|
|
|
-{
|
|
|
- struct dev_crypto_state *fstate = from->md_data;
|
|
|
- struct dev_crypto_state *dstate = to->md_data;
|
|
|
- struct session_op *sess;
|
|
|
- int digest;
|
|
|
-
|
|
|
- if (dstate == NULL || fstate == NULL)
|
|
|
- return 1;
|
|
|
-
|
|
|
- memcpy(dstate, fstate, sizeof(struct dev_crypto_state));
|
|
|
-
|
|
|
- sess = &dstate->d_sess;
|
|
|
-
|
|
|
- digest = digest_nid_to_cryptodev(to->digest->type);
|
|
|
-
|
|
|
- sess->mackey = NULL;
|
|
|
- sess->mackeylen = 0;
|
|
|
- sess->mac = digest;
|
|
|
-
|
|
|
- dstate->d_fd = get_dev_crypto();
|
|
|
-
|
|
|
- if (ioctl(dstate->d_fd, CIOCGSESSION, sess) < 0) {
|
|
|
- put_dev_crypto(dstate->d_fd);
|
|
|
- dstate->d_fd = -1;
|
|
|
- printf("cryptodev_digest_init: Open session failed\n");
|
|
|
- return (0);
|
|
|
- }
|
|
|
-
|
|
|
- if (fstate->mac_len != 0) {
|
|
|
- if (fstate->mac_data != NULL)
|
|
|
- {
|
|
|
- dstate->mac_data = OPENSSL_malloc(fstate->mac_len);
|
|
|
- memcpy(dstate->mac_data, fstate->mac_data, fstate->mac_len);
|
|
|
- dstate->mac_len = fstate->mac_len;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- return 1;
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static const EVP_MD cryptodev_sha1 = {
|
|
|
- NID_sha1,
|
|
|
- NID_sha1WithRSAEncryption,
|
|
|
- SHA_DIGEST_LENGTH,
|
|
|
- EVP_MD_FLAG_PKEY_METHOD_SIGNATURE|EVP_MD_FLAG_DIGALGID_ABSENT|EVP_MD_FLAG_ONESHOT,
|
|
|
- cryptodev_digest_init,
|
|
|
- cryptodev_digest_update,
|
|
|
- cryptodev_digest_final,
|
|
|
- cryptodev_digest_copy,
|
|
|
- cryptodev_digest_cleanup,
|
|
|
- EVP_PKEY_RSA_method,
|
|
|
- SHA_CBLOCK,
|
|
|
- sizeof(EVP_MD *)+sizeof(struct dev_crypto_state),
|
|
|
-};
|
|
|
-
|
|
|
-static const EVP_MD cryptodev_sha256 = {
|
|
|
- NID_sha256,
|
|
|
- NID_sha256WithRSAEncryption,
|
|
|
- SHA256_DIGEST_LENGTH,
|
|
|
- EVP_MD_FLAG_PKEY_METHOD_SIGNATURE|EVP_MD_FLAG_DIGALGID_ABSENT|EVP_MD_FLAG_ONESHOT,
|
|
|
- cryptodev_digest_init,
|
|
|
- cryptodev_digest_update,
|
|
|
- cryptodev_digest_final,
|
|
|
- cryptodev_digest_copy,
|
|
|
- cryptodev_digest_cleanup,
|
|
|
- EVP_PKEY_RSA_method,
|
|
|
- SHA256_CBLOCK,
|
|
|
- sizeof(EVP_MD *)+sizeof(struct dev_crypto_state),
|
|
|
-};
|
|
|
-
|
|
|
-static const EVP_MD cryptodev_sha384 = {
|
|
|
- NID_sha384,
|
|
|
- NID_sha384WithRSAEncryption,
|
|
|
- SHA384_DIGEST_LENGTH,
|
|
|
- EVP_MD_FLAG_PKEY_METHOD_SIGNATURE|EVP_MD_FLAG_DIGALGID_ABSENT|EVP_MD_FLAG_ONESHOT,
|
|
|
- cryptodev_digest_init,
|
|
|
- cryptodev_digest_update,
|
|
|
- cryptodev_digest_final,
|
|
|
- cryptodev_digest_copy,
|
|
|
- cryptodev_digest_cleanup,
|
|
|
- EVP_PKEY_RSA_method,
|
|
|
- SHA512_CBLOCK,
|
|
|
- sizeof(EVP_MD *)+sizeof(struct dev_crypto_state),
|
|
|
-};
|
|
|
-
|
|
|
-static const EVP_MD cryptodev_sha512 = {
|
|
|
- NID_sha512,
|
|
|
- NID_sha512WithRSAEncryption,
|
|
|
- SHA512_DIGEST_LENGTH,
|
|
|
- EVP_MD_FLAG_PKEY_METHOD_SIGNATURE|EVP_MD_FLAG_DIGALGID_ABSENT|EVP_MD_FLAG_ONESHOT,
|
|
|
- cryptodev_digest_init,
|
|
|
- cryptodev_digest_update,
|
|
|
- cryptodev_digest_final,
|
|
|
- cryptodev_digest_copy,
|
|
|
- cryptodev_digest_cleanup,
|
|
|
- EVP_PKEY_RSA_method,
|
|
|
- SHA512_CBLOCK,
|
|
|
- sizeof(EVP_MD *)+sizeof(struct dev_crypto_state),
|
|
|
-};
|
|
|
-
|
|
|
-static const EVP_MD cryptodev_md5 = {
|
|
|
- NID_md5,
|
|
|
- NID_md5WithRSAEncryption,
|
|
|
- 16 /* MD5_DIGEST_LENGTH */,
|
|
|
- EVP_MD_FLAG_PKEY_METHOD_SIGNATURE|EVP_MD_FLAG_DIGALGID_ABSENT|EVP_MD_FLAG_ONESHOT,
|
|
|
- cryptodev_digest_init,
|
|
|
- cryptodev_digest_update,
|
|
|
- cryptodev_digest_final,
|
|
|
- cryptodev_digest_copy,
|
|
|
- cryptodev_digest_cleanup,
|
|
|
- EVP_PKEY_RSA_method,
|
|
|
- 64 /* MD5_CBLOCK */,
|
|
|
- sizeof(EVP_MD *)+sizeof(struct dev_crypto_state),
|
|
|
-};
|
|
|
-
|
|
|
-#endif /* USE_CRYPTODEV_DIGESTS */
|
|
|
-
|
|
|
-
|
|
|
-static int
|
|
|
-cryptodev_engine_digests(ENGINE *e, const EVP_MD **digest,
|
|
|
- const int **nids, int nid)
|
|
|
-{
|
|
|
- if (!digest)
|
|
|
- return (cryptodev_usable_digests(nids));
|
|
|
-
|
|
|
- switch (nid) {
|
|
|
-#ifdef USE_CRYPTODEV_DIGESTS
|
|
|
- case NID_md5:
|
|
|
- *digest = &cryptodev_md5;
|
|
|
- break;
|
|
|
- case NID_sha1:
|
|
|
- *digest = &cryptodev_sha1;
|
|
|
- break;
|
|
|
- case NID_sha256:
|
|
|
- *digest = &cryptodev_sha256;
|
|
|
- break;
|
|
|
- case NID_sha384:
|
|
|
- *digest = &cryptodev_sha384;
|
|
|
- break;
|
|
|
- case NID_sha512:
|
|
|
- *digest = &cryptodev_sha512;
|
|
|
- break;
|
|
|
- default:
|
|
|
-#endif /* USE_CRYPTODEV_DIGESTS */
|
|
|
- *digest = NULL;
|
|
|
- break;
|
|
|
- }
|
|
|
- return (*digest != NULL);
|
|
|
-}
|
|
|
-
|
|
|
-/*
|
|
|
- * Convert a BIGNUM to the representation that /dev/crypto needs.
|
|
|
- * Upon completion of use, the caller is responsible for freeing
|
|
|
- * crp->crp_p.
|
|
|
- */
|
|
|
-static int
|
|
|
-bn2crparam(const BIGNUM *a, struct crparam *crp)
|
|
|
-{
|
|
|
- int i, j, k;
|
|
|
- ssize_t bytes, bits;
|
|
|
- u_char *b;
|
|
|
-
|
|
|
- crp->crp_p = NULL;
|
|
|
- crp->crp_nbits = 0;
|
|
|
-
|
|
|
- bits = BN_num_bits(a);
|
|
|
- bytes = (bits + 7) / 8;
|
|
|
-
|
|
|
- b = malloc(bytes);
|
|
|
- if (b == NULL)
|
|
|
- return (1);
|
|
|
- memset(b, 0, bytes);
|
|
|
-
|
|
|
- crp->crp_p = (void*) b;
|
|
|
- crp->crp_nbits = bits;
|
|
|
-
|
|
|
- for (i = 0, j = 0; i < a->top; i++) {
|
|
|
- for (k = 0; k < BN_BITS2 / 8; k++) {
|
|
|
- if ((j + k) >= bytes)
|
|
|
- return (0);
|
|
|
- b[j + k] = a->d[i] >> (k * 8);
|
|
|
- }
|
|
|
- j += BN_BITS2 / 8;
|
|
|
- }
|
|
|
- return (0);
|
|
|
-}
|
|
|
-
|
|
|
-/* Convert a /dev/crypto parameter to a BIGNUM */
|
|
|
-static int
|
|
|
-crparam2bn(struct crparam *crp, BIGNUM *a)
|
|
|
-{
|
|
|
- u_int8_t *pd;
|
|
|
- int i, bytes;
|
|
|
-
|
|
|
- bytes = (crp->crp_nbits + 7) / 8;
|
|
|
-
|
|
|
- if (bytes == 0)
|
|
|
- return (-1);
|
|
|
-
|
|
|
- if ((pd = (u_int8_t *) malloc(bytes)) == NULL)
|
|
|
- return (-1);
|
|
|
-
|
|
|
- for (i = 0; i < bytes; i++)
|
|
|
- pd[i] = crp->crp_p[bytes - i - 1];
|
|
|
-
|
|
|
- BN_bin2bn(pd, bytes, a);
|
|
|
- free(pd);
|
|
|
-
|
|
|
- return (0);
|
|
|
-}
|
|
|
-
|
|
|
-static void
|
|
|
-zapparams(struct crypt_kop *kop)
|
|
|
-{
|
|
|
- int i;
|
|
|
-
|
|
|
- for (i = 0; i < kop->crk_iparams + kop->crk_oparams; i++) {
|
|
|
- if (kop->crk_param[i].crp_p)
|
|
|
- free(kop->crk_param[i].crp_p);
|
|
|
- kop->crk_param[i].crp_p = NULL;
|
|
|
- kop->crk_param[i].crp_nbits = 0;
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-static int
|
|
|
-cryptodev_asym(struct crypt_kop *kop, int rlen, BIGNUM *r, int slen, BIGNUM *s)
|
|
|
-{
|
|
|
- int fd, ret = -1;
|
|
|
-
|
|
|
- if ((fd = get_asym_dev_crypto()) < 0)
|
|
|
- return (ret);
|
|
|
-
|
|
|
- if (r) {
|
|
|
- kop->crk_param[kop->crk_iparams].crp_p = calloc(rlen, sizeof(char));
|
|
|
- kop->crk_param[kop->crk_iparams].crp_nbits = rlen * 8;
|
|
|
- kop->crk_oparams++;
|
|
|
- }
|
|
|
- if (s) {
|
|
|
- kop->crk_param[kop->crk_iparams+1].crp_p = calloc(slen, sizeof(char));
|
|
|
- kop->crk_param[kop->crk_iparams+1].crp_nbits = slen * 8;
|
|
|
- kop->crk_oparams++;
|
|
|
- }
|
|
|
-
|
|
|
- if (ioctl(fd, CIOCKEY, kop) == 0) {
|
|
|
- if (r)
|
|
|
- crparam2bn(&kop->crk_param[kop->crk_iparams], r);
|
|
|
- if (s)
|
|
|
- crparam2bn(&kop->crk_param[kop->crk_iparams+1], s);
|
|
|
- ret = 0;
|
|
|
- }
|
|
|
-
|
|
|
- return (ret);
|
|
|
-}
|
|
|
-
|
|
|
-static int
|
|
|
-cryptodev_bn_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
|
|
|
- const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)
|
|
|
-{
|
|
|
- struct crypt_kop kop;
|
|
|
- int ret = 1;
|
|
|
-
|
|
|
- /* Currently, we know we can do mod exp iff we can do any
|
|
|
- * asymmetric operations at all.
|
|
|
- */
|
|
|
- if (cryptodev_asymfeat == 0) {
|
|
|
- ret = BN_mod_exp(r, a, p, m, ctx);
|
|
|
- return (ret);
|
|
|
- }
|
|
|
-
|
|
|
- memset(&kop, 0, sizeof kop);
|
|
|
- kop.crk_op = CRK_MOD_EXP;
|
|
|
-
|
|
|
- /* inputs: a^p % m */
|
|
|
- if (bn2crparam(a, &kop.crk_param[0]))
|
|
|
- goto err;
|
|
|
- if (bn2crparam(p, &kop.crk_param[1]))
|
|
|
- goto err;
|
|
|
- if (bn2crparam(m, &kop.crk_param[2]))
|
|
|
- goto err;
|
|
|
- kop.crk_iparams = 3;
|
|
|
-
|
|
|
- if (cryptodev_asym(&kop, BN_num_bytes(m), r, 0, NULL)) {
|
|
|
- const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
|
|
|
- printf("OCF asym process failed, Running in software\n");
|
|
|
- ret = meth->bn_mod_exp(r, a, p, m, ctx, in_mont);
|
|
|
-
|
|
|
- } else if (ECANCELED == kop.crk_status) {
|
|
|
- const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
|
|
|
- printf("OCF hardware operation cancelled. Running in Software\n");
|
|
|
- ret = meth->bn_mod_exp(r, a, p, m, ctx, in_mont);
|
|
|
- }
|
|
|
- /* else cryptodev operation worked ok ==> ret = 1*/
|
|
|
-
|
|
|
-err:
|
|
|
- zapparams(&kop);
|
|
|
- return (ret);
|
|
|
-}
|
|
|
-
|
|
|
-static int
|
|
|
-cryptodev_rsa_nocrt_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
|
|
|
-{
|
|
|
- int r;
|
|
|
- ctx = BN_CTX_new();
|
|
|
- r = cryptodev_bn_mod_exp(r0, I, rsa->d, rsa->n, ctx, NULL);
|
|
|
- BN_CTX_free(ctx);
|
|
|
- return (r);
|
|
|
-}
|
|
|
-
|
|
|
-static int
|
|
|
-cryptodev_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
|
|
|
-{
|
|
|
- struct crypt_kop kop;
|
|
|
- int ret = 1;
|
|
|
-
|
|
|
- if (!rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp) {
|
|
|
- /* XXX 0 means failure?? */
|
|
|
- return (0);
|
|
|
- }
|
|
|
-
|
|
|
- memset(&kop, 0, sizeof kop);
|
|
|
- kop.crk_op = CRK_MOD_EXP_CRT;
|
|
|
- /* inputs: rsa->p rsa->q I rsa->dmp1 rsa->dmq1 rsa->iqmp */
|
|
|
- if (bn2crparam(rsa->p, &kop.crk_param[0]))
|
|
|
- goto err;
|
|
|
- if (bn2crparam(rsa->q, &kop.crk_param[1]))
|
|
|
- goto err;
|
|
|
- if (bn2crparam(I, &kop.crk_param[2]))
|
|
|
- goto err;
|
|
|
- if (bn2crparam(rsa->dmp1, &kop.crk_param[3]))
|
|
|
- goto err;
|
|
|
- if (bn2crparam(rsa->dmq1, &kop.crk_param[4]))
|
|
|
- goto err;
|
|
|
- if (bn2crparam(rsa->iqmp, &kop.crk_param[5]))
|
|
|
- goto err;
|
|
|
- kop.crk_iparams = 6;
|
|
|
-
|
|
|
- if (cryptodev_asym(&kop, BN_num_bytes(rsa->n), r0, 0, NULL)) {
|
|
|
- const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
|
|
|
- printf("OCF asym process failed, running in Software\n");
|
|
|
- ret = (*meth->rsa_mod_exp)(r0, I, rsa, ctx);
|
|
|
-
|
|
|
- } else if (ECANCELED == kop.crk_status) {
|
|
|
- const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
|
|
|
- printf("OCF hardware operation cancelled. Running in Software\n");
|
|
|
- ret = (*meth->rsa_mod_exp)(r0, I, rsa, ctx);
|
|
|
- }
|
|
|
- /* else cryptodev operation worked ok ==> ret = 1*/
|
|
|
-
|
|
|
-err:
|
|
|
- zapparams(&kop);
|
|
|
- return (ret);
|
|
|
-}
|
|
|
-
|
|
|
-static RSA_METHOD cryptodev_rsa = {
|
|
|
- "cryptodev RSA method",
|
|
|
- NULL, /* rsa_pub_enc */
|
|
|
- NULL, /* rsa_pub_dec */
|
|
|
- NULL, /* rsa_priv_enc */
|
|
|
- NULL, /* rsa_priv_dec */
|
|
|
- NULL,
|
|
|
- NULL,
|
|
|
- NULL, /* init */
|
|
|
- NULL, /* finish */
|
|
|
- 0, /* flags */
|
|
|
- NULL, /* app_data */
|
|
|
- NULL, /* rsa_sign */
|
|
|
- NULL /* rsa_verify */
|
|
|
-};
|
|
|
-
|
|
|
-static int
|
|
|
-cryptodev_dsa_bn_mod_exp(DSA *dsa, BIGNUM *r, BIGNUM *a, const BIGNUM *p,
|
|
|
- const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
|
|
|
-{
|
|
|
- return (cryptodev_bn_mod_exp(r, a, p, m, ctx, m_ctx));
|
|
|
-}
|
|
|
-
|
|
|
-static int
|
|
|
-cryptodev_dsa_dsa_mod_exp(DSA *dsa, BIGNUM *t1, BIGNUM *g,
|
|
|
- BIGNUM *u1, BIGNUM *pub_key, BIGNUM *u2, BIGNUM *p,
|
|
|
- BN_CTX *ctx, BN_MONT_CTX *mont)
|
|
|
-{
|
|
|
- BIGNUM t2;
|
|
|
- int ret = 0;
|
|
|
-
|
|
|
- BN_init(&t2);
|
|
|
-
|
|
|
- /* v = ( g^u1 * y^u2 mod p ) mod q */
|
|
|
- /* let t1 = g ^ u1 mod p */
|
|
|
- ret = 0;
|
|
|
-
|
|
|
- if (!dsa->meth->bn_mod_exp(dsa,t1,dsa->g,u1,dsa->p,ctx,mont))
|
|
|
- goto err;
|
|
|
-
|
|
|
- /* let t2 = y ^ u2 mod p */
|
|
|
- if (!dsa->meth->bn_mod_exp(dsa,&t2,dsa->pub_key,u2,dsa->p,ctx,mont))
|
|
|
- goto err;
|
|
|
- /* let u1 = t1 * t2 mod p */
|
|
|
- if (!BN_mod_mul(u1,t1,&t2,dsa->p,ctx))
|
|
|
- goto err;
|
|
|
-
|
|
|
- BN_copy(t1,u1);
|
|
|
-
|
|
|
- ret = 1;
|
|
|
-err:
|
|
|
- BN_free(&t2);
|
|
|
- return(ret);
|
|
|
-}
|
|
|
-
|
|
|
-static DSA_SIG *
|
|
|
-cryptodev_dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa)
|
|
|
-{
|
|
|
- struct crypt_kop kop;
|
|
|
- BIGNUM *r = NULL, *s = NULL;
|
|
|
- DSA_SIG *dsaret = NULL;
|
|
|
-
|
|
|
- if ((r = BN_new()) == NULL)
|
|
|
- goto err;
|
|
|
- if ((s = BN_new()) == NULL) {
|
|
|
- BN_free(r);
|
|
|
- goto err;
|
|
|
- }
|
|
|
-
|
|
|
- memset(&kop, 0, sizeof kop);
|
|
|
- kop.crk_op = CRK_DSA_SIGN;
|
|
|
-
|
|
|
- /* inputs: dgst dsa->p dsa->q dsa->g dsa->priv_key */
|
|
|
- kop.crk_param[0].crp_p = (void*)dgst;
|
|
|
- kop.crk_param[0].crp_nbits = dlen * 8;
|
|
|
- if (bn2crparam(dsa->p, &kop.crk_param[1]))
|
|
|
- goto err;
|
|
|
- if (bn2crparam(dsa->q, &kop.crk_param[2]))
|
|
|
- goto err;
|
|
|
- if (bn2crparam(dsa->g, &kop.crk_param[3]))
|
|
|
- goto err;
|
|
|
- if (bn2crparam(dsa->priv_key, &kop.crk_param[4]))
|
|
|
- goto err;
|
|
|
- kop.crk_iparams = 5;
|
|
|
-
|
|
|
- if (cryptodev_asym(&kop, BN_num_bytes(dsa->q), r,
|
|
|
- BN_num_bytes(dsa->q), s) == 0) {
|
|
|
- dsaret = DSA_SIG_new();
|
|
|
- dsaret->r = r;
|
|
|
- dsaret->s = s;
|
|
|
- } else {
|
|
|
- const DSA_METHOD *meth = DSA_OpenSSL();
|
|
|
- BN_free(r);
|
|
|
- BN_free(s);
|
|
|
- dsaret = (meth->dsa_do_sign)(dgst, dlen, dsa);
|
|
|
- }
|
|
|
-err:
|
|
|
- kop.crk_param[0].crp_p = NULL;
|
|
|
- zapparams(&kop);
|
|
|
- return (dsaret);
|
|
|
-}
|
|
|
-
|
|
|
-static int
|
|
|
-cryptodev_dsa_verify(const unsigned char *dgst, int dlen,
|
|
|
- DSA_SIG *sig, DSA *dsa)
|
|
|
-{
|
|
|
- struct crypt_kop kop;
|
|
|
- int dsaret = 1;
|
|
|
-
|
|
|
- memset(&kop, 0, sizeof kop);
|
|
|
- kop.crk_op = CRK_DSA_VERIFY;
|
|
|
-
|
|
|
- /* inputs: dgst dsa->p dsa->q dsa->g dsa->pub_key sig->r sig->s */
|
|
|
- kop.crk_param[0].crp_p = (void*)dgst;
|
|
|
- kop.crk_param[0].crp_nbits = dlen * 8;
|
|
|
- if (bn2crparam(dsa->p, &kop.crk_param[1]))
|
|
|
- goto err;
|
|
|
- if (bn2crparam(dsa->q, &kop.crk_param[2]))
|
|
|
- goto err;
|
|
|
- if (bn2crparam(dsa->g, &kop.crk_param[3]))
|
|
|
- goto err;
|
|
|
- if (bn2crparam(dsa->pub_key, &kop.crk_param[4]))
|
|
|
- goto err;
|
|
|
- if (bn2crparam(sig->r, &kop.crk_param[5]))
|
|
|
- goto err;
|
|
|
- if (bn2crparam(sig->s, &kop.crk_param[6]))
|
|
|
- goto err;
|
|
|
- kop.crk_iparams = 7;
|
|
|
-
|
|
|
- if (cryptodev_asym(&kop, 0, NULL, 0, NULL) == 0) {
|
|
|
-/*OCF success value is 0, if not zero, change dsaret to fail*/
|
|
|
- if(0 != kop.crk_status) dsaret = 0;
|
|
|
- } else {
|
|
|
- const DSA_METHOD *meth = DSA_OpenSSL();
|
|
|
-
|
|
|
- dsaret = (meth->dsa_do_verify)(dgst, dlen, sig, dsa);
|
|
|
- }
|
|
|
-err:
|
|
|
- kop.crk_param[0].crp_p = NULL;
|
|
|
- zapparams(&kop);
|
|
|
- return (dsaret);
|
|
|
-}
|
|
|
-
|
|
|
-static DSA_METHOD cryptodev_dsa = {
|
|
|
- "cryptodev DSA method",
|
|
|
- NULL,
|
|
|
- NULL, /* dsa_sign_setup */
|
|
|
- NULL,
|
|
|
- NULL, /* dsa_mod_exp */
|
|
|
- NULL,
|
|
|
- NULL, /* init */
|
|
|
- NULL, /* finish */
|
|
|
- 0, /* flags */
|
|
|
- NULL /* app_data */
|
|
|
-};
|
|
|
-
|
|
|
-static int
|
|
|
-cryptodev_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
|
|
|
- const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
|
|
|
- BN_MONT_CTX *m_ctx)
|
|
|
-{
|
|
|
- return (cryptodev_bn_mod_exp(r, a, p, m, ctx, m_ctx));
|
|
|
-}
|
|
|
-
|
|
|
-static int
|
|
|
-cryptodev_dh_compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh)
|
|
|
-{
|
|
|
- struct crypt_kop kop;
|
|
|
- int dhret = 1;
|
|
|
- int fd, keylen;
|
|
|
-
|
|
|
- if ((fd = get_asym_dev_crypto()) < 0) {
|
|
|
- const DH_METHOD *meth = DH_OpenSSL();
|
|
|
-
|
|
|
- return ((meth->compute_key)(key, pub_key, dh));
|
|
|
- }
|
|
|
-
|
|
|
- keylen = BN_num_bits(dh->p);
|
|
|
-
|
|
|
- memset(&kop, 0, sizeof kop);
|
|
|
- kop.crk_op = CRK_DH_COMPUTE_KEY;
|
|
|
-
|
|
|
- /* inputs: dh->priv_key pub_key dh->p key */
|
|
|
- if (bn2crparam(dh->priv_key, &kop.crk_param[0]))
|
|
|
- goto err;
|
|
|
- if (bn2crparam(pub_key, &kop.crk_param[1]))
|
|
|
- goto err;
|
|
|
- if (bn2crparam(dh->p, &kop.crk_param[2]))
|
|
|
- goto err;
|
|
|
- kop.crk_iparams = 3;
|
|
|
-
|
|
|
- kop.crk_param[3].crp_p = (void*) key;
|
|
|
- kop.crk_param[3].crp_nbits = keylen * 8;
|
|
|
- kop.crk_oparams = 1;
|
|
|
-
|
|
|
- if (ioctl(fd, CIOCKEY, &kop) == -1) {
|
|
|
- const DH_METHOD *meth = DH_OpenSSL();
|
|
|
-
|
|
|
- dhret = (meth->compute_key)(key, pub_key, dh);
|
|
|
- }
|
|
|
-err:
|
|
|
- kop.crk_param[3].crp_p = NULL;
|
|
|
- zapparams(&kop);
|
|
|
- return (dhret);
|
|
|
-}
|
|
|
-
|
|
|
-static DH_METHOD cryptodev_dh = {
|
|
|
- "cryptodev DH method",
|
|
|
- NULL, /* cryptodev_dh_generate_key */
|
|
|
- NULL,
|
|
|
- NULL,
|
|
|
- NULL,
|
|
|
- NULL,
|
|
|
- 0, /* flags */
|
|
|
- NULL /* app_data */
|
|
|
-};
|
|
|
-
|
|
|
-/*
|
|
|
- * ctrl right now is just a wrapper that doesn't do much
|
|
|
- * but I expect we'll want some options soon.
|
|
|
- */
|
|
|
-static int
|
|
|
-cryptodev_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
|
|
|
-{
|
|
|
-#ifdef HAVE_SYSLOG_R
|
|
|
- struct syslog_data sd = SYSLOG_DATA_INIT;
|
|
|
-#endif
|
|
|
-
|
|
|
- switch (cmd) {
|
|
|
- default:
|
|
|
-#ifdef HAVE_SYSLOG_R
|
|
|
- syslog_r(LOG_ERR, &sd,
|
|
|
- "cryptodev_ctrl: unknown command %d", cmd);
|
|
|
-#else
|
|
|
- syslog(LOG_ERR, "cryptodev_ctrl: unknown command %d", cmd);
|
|
|
-#endif
|
|
|
- break;
|
|
|
- }
|
|
|
- return (1);
|
|
|
-}
|
|
|
-
|
|
|
-void
|
|
|
-ENGINE_load_cryptodev(void)
|
|
|
-{
|
|
|
- ENGINE *engine = ENGINE_new();
|
|
|
- int fd;
|
|
|
-
|
|
|
- if (engine == NULL)
|
|
|
- return;
|
|
|
- if ((fd = get_dev_crypto()) < 0) {
|
|
|
- ENGINE_free(engine);
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- /*
|
|
|
- * find out what asymmetric crypto algorithms we support
|
|
|
- */
|
|
|
- if (ioctl(fd, CIOCASYMFEAT, &cryptodev_asymfeat) == -1) {
|
|
|
- put_dev_crypto(fd);
|
|
|
- ENGINE_free(engine);
|
|
|
- return;
|
|
|
- }
|
|
|
- put_dev_crypto(fd);
|
|
|
-
|
|
|
- if (!ENGINE_set_id(engine, "cryptodev") ||
|
|
|
- !ENGINE_set_name(engine, "cryptodev engine") ||
|
|
|
- !ENGINE_set_ciphers(engine, cryptodev_engine_ciphers) ||
|
|
|
- !ENGINE_set_digests(engine, cryptodev_engine_digests) ||
|
|
|
- !ENGINE_set_ctrl_function(engine, cryptodev_ctrl) ||
|
|
|
- !ENGINE_set_cmd_defns(engine, cryptodev_defns)) {
|
|
|
- ENGINE_free(engine);
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- if (ENGINE_set_RSA(engine, &cryptodev_rsa)) {
|
|
|
- const RSA_METHOD *rsa_meth = RSA_PKCS1_SSLeay();
|
|
|
-
|
|
|
- cryptodev_rsa.bn_mod_exp = rsa_meth->bn_mod_exp;
|
|
|
- cryptodev_rsa.rsa_mod_exp = rsa_meth->rsa_mod_exp;
|
|
|
- cryptodev_rsa.rsa_pub_enc = rsa_meth->rsa_pub_enc;
|
|
|
- cryptodev_rsa.rsa_pub_dec = rsa_meth->rsa_pub_dec;
|
|
|
- cryptodev_rsa.rsa_priv_enc = rsa_meth->rsa_priv_enc;
|
|
|
- cryptodev_rsa.rsa_priv_dec = rsa_meth->rsa_priv_dec;
|
|
|
- if (cryptodev_asymfeat & CRF_MOD_EXP) {
|
|
|
- cryptodev_rsa.bn_mod_exp = cryptodev_bn_mod_exp;
|
|
|
- if (cryptodev_asymfeat & CRF_MOD_EXP_CRT)
|
|
|
- cryptodev_rsa.rsa_mod_exp =
|
|
|
- cryptodev_rsa_mod_exp;
|
|
|
- else
|
|
|
- cryptodev_rsa.rsa_mod_exp =
|
|
|
- cryptodev_rsa_nocrt_mod_exp;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- if (ENGINE_set_DSA(engine, &cryptodev_dsa)) {
|
|
|
- const DSA_METHOD *meth = DSA_OpenSSL();
|
|
|
-
|
|
|
- memcpy(&cryptodev_dsa, meth, sizeof(DSA_METHOD));
|
|
|
- if (cryptodev_asymfeat & CRF_DSA_SIGN)
|
|
|
- cryptodev_dsa.dsa_do_sign = cryptodev_dsa_do_sign;
|
|
|
- if (cryptodev_asymfeat & CRF_MOD_EXP) {
|
|
|
- cryptodev_dsa.bn_mod_exp = cryptodev_dsa_bn_mod_exp;
|
|
|
- cryptodev_dsa.dsa_mod_exp = cryptodev_dsa_dsa_mod_exp;
|
|
|
- }
|
|
|
- if (cryptodev_asymfeat & CRF_DSA_VERIFY)
|
|
|
- cryptodev_dsa.dsa_do_verify = cryptodev_dsa_verify;
|
|
|
- }
|
|
|
-
|
|
|
- if (ENGINE_set_DH(engine, &cryptodev_dh)){
|
|
|
- const DH_METHOD *dh_meth = DH_OpenSSL();
|
|
|
-
|
|
|
- cryptodev_dh.generate_key = dh_meth->generate_key;
|
|
|
- cryptodev_dh.compute_key = dh_meth->compute_key;
|
|
|
- cryptodev_dh.bn_mod_exp = dh_meth->bn_mod_exp;
|
|
|
- if (cryptodev_asymfeat & CRF_MOD_EXP) {
|
|
|
- cryptodev_dh.bn_mod_exp = cryptodev_mod_exp_dh;
|
|
|
- if (cryptodev_asymfeat & CRF_DH_COMPUTE_KEY)
|
|
|
- cryptodev_dh.compute_key =
|
|
|
- cryptodev_dh_compute_key;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- ENGINE_add(engine);
|
|
|
- ENGINE_free(engine);
|
|
|
- ERR_clear_error();
|
|
|
-}
|
|
|
-
|
|
|
-#endif /* HAVE_CRYPTODEV */
|
Waldemar Brodkorb