2 * Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 * Copyright (c) 2002 Bob Beck <beck@openbsd.org>
12 * Copyright (c) 2002 Theo de Raadt
13 * Copyright (c) 2002 Markus Friedl
14 * Copyright (c) 2012 Nikos Mavrogiannopoulos
15 * All rights reserved.
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions
20 * 1. Redistributions of source code must retain the above copyright
21 * notice, this list of conditions and the following disclaimer.
22 * 2. Redistributions in binary form must reproduce the above copyright
23 * notice, this list of conditions and the following disclaimer in the
24 * documentation and/or other materials provided with the distribution.
26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
27 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
28 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
29 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY
30 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
31 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
32 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
33 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
35 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 #include <openssl/objects.h>
40 #include <internal/engine.h>
41 #include <openssl/evp.h>
42 #include <openssl/bn.h>
43 #include <openssl/crypto.h>
45 #if (defined(__unix__) || defined(unix)) && !defined(USG) && \
46 (defined(OpenBSD) || defined(__FreeBSD__) || defined(__DragonFly__))
47 # include <sys/param.h>
48 # if (OpenBSD >= 200112) || ((__FreeBSD_version >= 470101 && __FreeBSD_version < 500000) || __FreeBSD_version >= 500041) || defined(__DragonFly__)
49 # define HAVE_CRYPTODEV
51 # if (OpenBSD >= 200110)
52 # define HAVE_SYSLOG_R
56 #include <sys/types.h>
58 # include <crypto/cryptodev.h>
59 # include <sys/ioctl.h>
69 #include <openssl/dh.h>
70 #include <openssl/dsa.h>
71 #include <openssl/err.h>
72 #include <openssl/rsa.h>
74 #ifndef HAVE_CRYPTODEV
76 void engine_load_cryptodev_int(void)
78 /* This is a NOP on platforms without /dev/crypto */
84 struct dev_crypto_state {
85 struct session_op d_sess;
87 # ifdef USE_CRYPTODEV_DIGESTS
88 unsigned char digest_res[HASH_MAX_LEN];
94 static u_int32_t cryptodev_asymfeat = 0;
96 static RSA_METHOD *cryptodev_rsa;
97 # ifndef OPENSSL_NO_DSA
98 static DSA_METHOD *cryptodev_dsa = NULL;
100 # ifndef OPENSSL_NO_DH
101 static DH_METHOD *cryptodev_dh;
104 static int get_asym_dev_crypto(void);
105 static int open_dev_crypto(void);
106 static int get_dev_crypto(void);
107 static int get_cryptodev_ciphers(const int **cnids);
108 # ifdef USE_CRYPTODEV_DIGESTS
109 static int get_cryptodev_digests(const int **cnids);
111 static int cryptodev_usable_ciphers(const int **nids);
112 static int cryptodev_usable_digests(const int **nids);
113 static int cryptodev_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
114 const unsigned char *in, size_t inl);
115 static int cryptodev_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
116 const unsigned char *iv, int enc);
117 static int cryptodev_cleanup(EVP_CIPHER_CTX *ctx);
118 static int cryptodev_engine_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
119 const int **nids, int nid);
120 static int cryptodev_engine_digests(ENGINE *e, const EVP_MD **digest,
121 const int **nids, int nid);
122 static int bn2crparam(const BIGNUM *a, struct crparam *crp);
123 static int crparam2bn(struct crparam *crp, BIGNUM *a);
124 static void zapparams(struct crypt_kop *kop);
125 static int cryptodev_asym(struct crypt_kop *kop, int rlen, BIGNUM *r,
126 int slen, BIGNUM *s);
128 static int cryptodev_bn_mod_exp(BIGNUM *r, const BIGNUM *a,
129 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
131 static int cryptodev_rsa_nocrt_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
133 static int cryptodev_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
135 # ifndef OPENSSL_NO_DSA
136 static int cryptodev_dsa_bn_mod_exp(DSA *dsa, BIGNUM *r, const BIGNUM *a,
137 const BIGNUM *p, const BIGNUM *m,
138 BN_CTX *ctx, BN_MONT_CTX *m_ctx);
139 static int cryptodev_dsa_dsa_mod_exp(DSA *dsa, BIGNUM *t1, const BIGNUM *g,
140 const BIGNUM *u1, const BIGNUM *pub_key,
141 const BIGNUM *u2, const BIGNUM *p,
142 BN_CTX *ctx, BN_MONT_CTX *mont);
143 static DSA_SIG *cryptodev_dsa_do_sign(const unsigned char *dgst, int dlen,
145 static int cryptodev_dsa_verify(const unsigned char *dgst, int dgst_len,
146 DSA_SIG *sig, DSA *dsa);
148 # ifndef OPENSSL_NO_DH
149 static int cryptodev_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
150 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
152 static int cryptodev_dh_compute_key(unsigned char *key, const BIGNUM *pub_key,
155 static int cryptodev_ctrl(ENGINE *e, int cmd, long i, void *p,
157 void engine_load_cryptodev_int(void);
159 static const ENGINE_CMD_DEFN cryptodev_defns[] = {
170 CRYPTO_ARC4, NID_rc4, 0, 16,
173 CRYPTO_DES_CBC, NID_des_cbc, 8, 8,
176 CRYPTO_3DES_CBC, NID_des_ede3_cbc, 8, 24,
179 CRYPTO_AES_CBC, NID_aes_128_cbc, 16, 16,
182 CRYPTO_AES_CBC, NID_aes_192_cbc, 16, 24,
185 CRYPTO_AES_CBC, NID_aes_256_cbc, 16, 32,
188 CRYPTO_AES_CTR, NID_aes_128_ctr, 14, 16,
191 CRYPTO_AES_CTR, NID_aes_192_ctr, 14, 24,
194 CRYPTO_AES_CTR, NID_aes_256_ctr, 14, 32,
197 CRYPTO_BLF_CBC, NID_bf_cbc, 8, 16,
200 CRYPTO_CAST_CBC, NID_cast5_cbc, 8, 16,
203 CRYPTO_SKIPJACK_CBC, NID_undef, 0, 0,
205 {CRYPTO_3DES_ECB, NID_des_ede3_ecb, 0, 24},
206 {CRYPTO_AES_ECB, NID_aes_128_ecb, 0, 16},
207 {CRYPTO_AES_ECB, NID_aes_192_ecb, 0, 24},
208 {CRYPTO_AES_ECB, NID_aes_256_ecb, 0, 32},
209 {0, NID_undef, 0, 0},
212 # ifdef USE_CRYPTODEV_DIGESTS
219 /* HMAC is not supported */
221 CRYPTO_MD5_HMAC, NID_hmacWithMD5, 16
224 CRYPTO_SHA1_HMAC, NID_hmacWithSHA1, 20
227 CRYPTO_SHA2_256_HMAC, NID_hmacWithSHA256, 32
230 CRYPTO_SHA2_384_HMAC, NID_hmacWithSHA384, 48
233 CRYPTO_SHA2_512_HMAC, NID_hmacWithSHA512, 64
237 CRYPTO_MD5, NID_md5, 16
240 CRYPTO_SHA1, NID_sha1, 20
243 CRYPTO_SHA2_256, NID_sha256, 32
246 CRYPTO_SHA2_384, NID_sha384, 48
249 CRYPTO_SHA2_512, NID_sha512, 64
258 * Return a fd if /dev/crypto seems usable, 0 otherwise.
260 static int open_dev_crypto(void)
265 if ((fd = open("/dev/crypto", O_RDWR, 0)) == -1)
268 if (fcntl(fd, F_SETFD, 1) == -1) {
277 static int get_dev_crypto(void)
281 if ((fd = open_dev_crypto()) == -1)
283 # ifndef CRIOGET_NOT_NEEDED
284 if (ioctl(fd, CRIOGET, &retfd) == -1)
288 if (fcntl(retfd, F_SETFD, 1) == -1) {
298 static void put_dev_crypto(int fd)
300 # ifndef CRIOGET_NOT_NEEDED
305 /* Caching version for asym operations */
306 static int get_asym_dev_crypto(void)
311 fd = get_dev_crypto();
316 * Find out what ciphers /dev/crypto will let us have a session for.
317 * XXX note, that some of these openssl doesn't deal with yet!
318 * returning them here is harmless, as long as we return NULL
319 * when asked for a handler in the cryptodev_engine_ciphers routine
321 static int get_cryptodev_ciphers(const int **cnids)
323 static int nids[CRYPTO_ALGORITHM_MAX];
324 struct session_op sess;
325 int fd, i, count = 0;
326 unsigned char fake_key[CRYPTO_CIPHER_MAX_KEY_LEN];
328 if ((fd = get_dev_crypto()) < 0) {
332 memset(&sess, 0, sizeof(sess));
333 sess.key = (void *)fake_key;
335 for (i = 0; ciphers[i].id && count < CRYPTO_ALGORITHM_MAX; i++) {
336 if (ciphers[i].nid == NID_undef)
338 sess.cipher = ciphers[i].id;
339 sess.keylen = ciphers[i].keylen;
341 if (ioctl(fd, CIOCGSESSION, &sess) != -1 &&
342 ioctl(fd, CIOCFSESSION, &sess.ses) != -1)
343 nids[count++] = ciphers[i].nid;
354 # ifdef USE_CRYPTODEV_DIGESTS
356 * Find out what digests /dev/crypto will let us have a session for.
357 * XXX note, that some of these openssl doesn't deal with yet!
358 * returning them here is harmless, as long as we return NULL
359 * when asked for a handler in the cryptodev_engine_digests routine
361 static int get_cryptodev_digests(const int **cnids)
363 static int nids[CRYPTO_ALGORITHM_MAX];
364 unsigned char fake_key[CRYPTO_CIPHER_MAX_KEY_LEN];
365 struct session_op sess;
366 int fd, i, count = 0;
368 if ((fd = get_dev_crypto()) < 0) {
372 memset(&sess, 0, sizeof(sess));
373 sess.mackey = (void *)fake_key;
374 for (i = 0; digests[i].id && count < CRYPTO_ALGORITHM_MAX; i++) {
375 if (digests[i].nid == NID_undef)
377 sess.mac = digests[i].id;
378 sess.mackeylen = digests[i].digestlen;
380 if (ioctl(fd, CIOCGSESSION, &sess) != -1 &&
381 ioctl(fd, CIOCFSESSION, &sess.ses) != -1)
382 nids[count++] = digests[i].nid;
395 * Find the useable ciphers|digests from dev/crypto - this is the first
396 * thing called by the engine init crud which determines what it
397 * can use for ciphers from this engine. We want to return
398 * only what we can do, anything else is handled by software.
400 * If we can't initialize the device to do anything useful for
401 * any reason, we want to return a NULL array, and 0 length,
402 * which forces everything to be done is software. By putting
403 * the initialization of the device in here, we ensure we can
404 * use this engine as the default, and if for whatever reason
405 * /dev/crypto won't do what we want it will just be done in
408 * This can (should) be greatly expanded to perhaps take into
409 * account speed of the device, and what we want to do.
410 * (although the disabling of particular alg's could be controlled
411 * by the device driver with sysctl's.) - this is where we
412 * want most of the decisions made about what we actually want
413 * to use from /dev/crypto.
415 static int cryptodev_usable_ciphers(const int **nids)
417 return (get_cryptodev_ciphers(nids));
420 static int cryptodev_usable_digests(const int **nids)
422 # ifdef USE_CRYPTODEV_DIGESTS
423 return (get_cryptodev_digests(nids));
426 * XXXX just disable all digests for now, because it sucks.
427 * we need a better way to decide this - i.e. I may not
428 * want digests on slow cards like hifn on fast machines,
429 * but might want them on slow or loaded machines, etc.
430 * will also want them when using crypto cards that don't
431 * suck moose gonads - would be nice to be able to decide something
432 * as reasonable default without having hackery that's card dependent.
433 * of course, the default should probably be just do everything,
434 * with perhaps a sysctl to turn algorithms off (or have them off
435 * by default) on cards that generally suck like the hifn.
443 cryptodev_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
444 const unsigned char *in, size_t inl)
446 struct crypt_op cryp;
447 struct dev_crypto_state *state = EVP_CIPHER_CTX_get_cipher_data(ctx);
448 struct session_op *sess = &state->d_sess;
450 unsigned char save_iv[EVP_MAX_IV_LENGTH];
456 if ((inl % EVP_CIPHER_CTX_block_size(ctx)) != 0)
459 memset(&cryp, 0, sizeof(cryp));
461 cryp.ses = sess->ses;
464 cryp.src = (void *) in;
465 cryp.dst = (void *) out;
468 cryp.op = EVP_CIPHER_CTX_encrypting(ctx) ? COP_ENCRYPT : COP_DECRYPT;
470 if (EVP_CIPHER_CTX_iv_length(ctx) > 0) {
471 cryp.iv = (void *) EVP_CIPHER_CTX_iv(ctx);
472 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
473 iiv = in + inl - EVP_CIPHER_CTX_iv_length(ctx);
474 memcpy(save_iv, iiv, EVP_CIPHER_CTX_iv_length(ctx));
479 if (ioctl(state->d_fd, CIOCCRYPT, &cryp) == -1) {
481 * XXX need better error handling this can fail for a number of
487 if (EVP_CIPHER_CTX_iv_length(ctx) > 0) {
488 if (EVP_CIPHER_CTX_encrypting(ctx))
489 iiv = out + inl - EVP_CIPHER_CTX_iv_length(ctx);
492 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iiv,
493 EVP_CIPHER_CTX_iv_length(ctx));
499 cryptodev_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
500 const unsigned char *iv, int enc)
502 struct dev_crypto_state *state = EVP_CIPHER_CTX_get_cipher_data(ctx);
503 struct session_op *sess = &state->d_sess;
506 for (i = 0; ciphers[i].id; i++)
507 if (EVP_CIPHER_CTX_nid(ctx) == ciphers[i].nid &&
508 EVP_CIPHER_CTX_iv_length(ctx) <= ciphers[i].ivmax &&
509 EVP_CIPHER_CTX_key_length(ctx) == ciphers[i].keylen) {
510 cipher = ciphers[i].id;
514 if (!ciphers[i].id) {
519 memset(sess, 0, sizeof(*sess));
521 if ((state->d_fd = get_dev_crypto()) < 0)
524 sess->key = (void *) key;
525 sess->keylen = EVP_CIPHER_CTX_key_length(ctx);
526 sess->cipher = cipher;
528 if (ioctl(state->d_fd, CIOCGSESSION, sess) == -1) {
529 put_dev_crypto(state->d_fd);
537 * free anything we allocated earlier when initing a
538 * session, and close the session.
540 static int cryptodev_cleanup(EVP_CIPHER_CTX *ctx)
543 struct dev_crypto_state *state = EVP_CIPHER_CTX_get_cipher_data(ctx);
544 struct session_op *sess = &state->d_sess;
550 * XXX if this ioctl fails, something's wrong. the invoker may have called
551 * us with a bogus ctx, or we could have a device that for whatever
552 * reason just doesn't want to play ball - it's not clear what's right
553 * here - should this be an error? should it just increase a counter,
554 * hmm. For right now, we return 0 - I don't believe that to be "right".
555 * we could call the gorpy openssl lib error handlers that print messages
556 * to users of the library. hmm..
559 if (ioctl(state->d_fd, CIOCFSESSION, &sess->ses) == -1) {
564 put_dev_crypto(state->d_fd);
571 * libcrypto EVP stuff - this is how we get wired to EVP so the engine
572 * gets called when libcrypto requests a cipher NID.
575 static int cryptodev_cipher_ctrl(EVP_CIPHER_CTX *ctx, int type, int p1, void *p2)
577 struct dev_crypto_state *state = ctx->cipher_data;
578 struct session_op *sess = &state->d_sess;
580 if (type == EVP_CTRL_COPY) {
581 EVP_CIPHER_CTX *out = p2;
582 return cryptodev_init_key(out, sess->key, ctx->iv, 0);
589 static EVP_CIPHER *rc4_cipher = NULL;
590 static const EVP_CIPHER *cryptodev_rc4(void)
592 if (rc4_cipher == NULL) {
595 if ((cipher = EVP_CIPHER_meth_new(NID_rc4, 1, 16)) == NULL
596 || !EVP_CIPHER_meth_set_iv_length(cipher, 0)
597 || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_VARIABLE_LENGTH
598 | EVP_CIPH_CUSTOM_COPY)
599 || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
600 || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
601 || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
602 || !EVP_CIPHER_meth_set_ctrl(cipher, cryptodev_cipher_ctrl)
603 || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))) {
604 EVP_CIPHER_meth_free(cipher);
613 static EVP_CIPHER *des_cbc_cipher = NULL;
614 static const EVP_CIPHER *cryptodev_des_cbc(void)
616 if (des_cbc_cipher == NULL) {
619 if ((cipher = EVP_CIPHER_meth_new(NID_des_cbc, 8, 8)) == NULL
620 || !EVP_CIPHER_meth_set_iv_length(cipher, 8)
621 || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CBC_MODE
622 | EVP_CIPH_CUSTOM_COPY)
623 || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
624 || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
625 || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
626 || !EVP_CIPHER_meth_set_ctrl(cipher, cryptodev_cipher_ctrl)
627 || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
628 || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
629 || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
630 EVP_CIPHER_meth_free(cipher);
633 des_cbc_cipher = cipher;
635 return des_cbc_cipher;
639 static EVP_CIPHER *des3_cbc_cipher = NULL;
640 static const EVP_CIPHER *cryptodev_3des_cbc(void)
642 if (des3_cbc_cipher == NULL) {
645 if ((cipher = EVP_CIPHER_meth_new(NID_des_ede3_cbc, 8, 24)) == NULL
646 || !EVP_CIPHER_meth_set_iv_length(cipher, 8)
647 || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CBC_MODE
648 | EVP_CIPH_CUSTOM_COPY)
649 || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
650 || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
651 || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
652 || !EVP_CIPHER_meth_set_ctrl(cipher, cryptodev_cipher_ctrl)
653 || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
654 || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
655 || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
656 EVP_CIPHER_meth_free(cipher);
659 des3_cbc_cipher = cipher;
661 return des3_cbc_cipher;
665 static EVP_CIPHER *des3_ecb_cipher = NULL;
666 static const EVP_CIPHER *cryptodev_3des_ecb(void)
668 if (des3_ecb_cipher == NULL) {
669 EVP_CIPHER *cipher = EVP_CIPHER_meth_new(NID_des_ede3_ecb, 8, 24);
672 || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_ECB_MODE)
673 || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
674 || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
675 || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
676 || !EVP_CIPHER_meth_set_ctrl(cipher, cryptodev_cipher_ctrl)
677 || !EVP_CIPHER_meth_set_impl_ctx_size(cipher,
679 dev_crypto_state))) {
680 EVP_CIPHER_meth_free(cipher);
683 des3_ecb_cipher = cipher;
685 return des3_ecb_cipher;
688 static EVP_CIPHER *bf_cbc_cipher = NULL;
689 static const EVP_CIPHER *cryptodev_bf_cbc(void)
691 if (bf_cbc_cipher == NULL) {
694 if ((cipher = EVP_CIPHER_meth_new(NID_bf_cbc, 8, 16)) == NULL
695 || !EVP_CIPHER_meth_set_iv_length(cipher, 8)
696 || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CBC_MODE
697 | EVP_CIPH_CUSTOM_COPY)
698 || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
699 || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
700 || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
701 || !EVP_CIPHER_meth_set_ctrl(cipher, cryptodev_cipher_ctrl)
702 || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
703 || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
704 || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
705 EVP_CIPHER_meth_free(cipher);
708 bf_cbc_cipher = cipher;
710 return bf_cbc_cipher;
713 static EVP_CIPHER *cast_cbc_cipher = NULL;
714 static const EVP_CIPHER *cryptodev_cast_cbc(void)
716 if (cast_cbc_cipher == NULL) {
719 if ((cipher = EVP_CIPHER_meth_new(NID_cast5_cbc, 8, 16)) == NULL
720 || !EVP_CIPHER_meth_set_iv_length(cipher, 8)
721 || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CBC_MODE
722 | EVP_CIPH_CUSTOM_COPY)
723 || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
724 || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
725 || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
726 || !EVP_CIPHER_meth_set_ctrl(cipher, cryptodev_cipher_ctrl)
727 || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
728 || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
729 || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
730 EVP_CIPHER_meth_free(cipher);
733 cast_cbc_cipher = cipher;
735 return cast_cbc_cipher;
738 static EVP_CIPHER *aes_cbc_cipher = NULL;
739 static const EVP_CIPHER *cryptodev_aes_cbc(void)
741 if (aes_cbc_cipher == NULL) {
744 if ((cipher = EVP_CIPHER_meth_new(NID_aes_128_cbc, 16, 16)) == NULL
745 || !EVP_CIPHER_meth_set_iv_length(cipher, 16)
746 || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CBC_MODE
747 | EVP_CIPH_CUSTOM_COPY)
748 || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
749 || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
750 || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
751 || !EVP_CIPHER_meth_set_ctrl(cipher, cryptodev_cipher_ctrl)
752 || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
753 || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
754 || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
755 EVP_CIPHER_meth_free(cipher);
758 aes_cbc_cipher = cipher;
760 return aes_cbc_cipher;
763 static EVP_CIPHER *aes_192_cbc_cipher = NULL;
764 static const EVP_CIPHER *cryptodev_aes_192_cbc(void)
766 if (aes_192_cbc_cipher == NULL) {
769 if ((cipher = EVP_CIPHER_meth_new(NID_aes_192_cbc, 16, 24)) == NULL
770 || !EVP_CIPHER_meth_set_iv_length(cipher, 16)
771 || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CBC_MODE
772 | EVP_CIPH_CUSTOM_COPY)
773 || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
774 || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
775 || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
776 || !EVP_CIPHER_meth_set_ctrl(cipher, cryptodev_cipher_ctrl)
777 || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
778 || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
779 || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
780 EVP_CIPHER_meth_free(cipher);
783 aes_192_cbc_cipher = cipher;
785 return aes_192_cbc_cipher;
788 static EVP_CIPHER *aes_256_cbc_cipher = NULL;
789 static const EVP_CIPHER *cryptodev_aes_256_cbc(void)
791 if (aes_256_cbc_cipher == NULL) {
794 if ((cipher = EVP_CIPHER_meth_new(NID_aes_256_cbc, 16, 32)) == NULL
795 || !EVP_CIPHER_meth_set_iv_length(cipher, 16)
796 || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CBC_MODE
797 | EVP_CIPH_CUSTOM_COPY)
798 || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
799 || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
800 || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
801 || !EVP_CIPHER_meth_set_ctrl(cipher, cryptodev_cipher_ctrl)
802 || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
803 || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
804 || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
805 EVP_CIPHER_meth_free(cipher);
808 aes_256_cbc_cipher = cipher;
810 return aes_256_cbc_cipher;
813 static EVP_CIPHER *aes_ctr_cipher = NULL;
814 static const EVP_CIPHER *cryptodev_aes_ctr(void)
816 if (aes_ctr_cipher == NULL) {
819 if ((cipher = EVP_CIPHER_meth_new(NID_aes_128_ctr, 16, 16)) == NULL
820 || !EVP_CIPHER_meth_set_iv_length(cipher, 14)
821 || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CTR_MODE
822 | EVP_CIPH_CUSTOM_COPY)
823 || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
824 || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
825 || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
826 || !EVP_CIPHER_meth_set_ctrl(cipher, cryptodev_cipher_ctrl)
827 || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
828 || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
829 || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
830 EVP_CIPHER_meth_free(cipher);
833 aes_ctr_cipher = cipher;
835 return aes_ctr_cipher;
838 static EVP_CIPHER *aes_192_ctr_cipher = NULL;
839 static const EVP_CIPHER *cryptodev_aes_192_ctr(void)
841 if (aes_192_ctr_cipher == NULL) {
844 if ((cipher = EVP_CIPHER_meth_new(NID_aes_192_ctr, 16, 24)) == NULL
845 || !EVP_CIPHER_meth_set_iv_length(cipher, 14)
846 || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CTR_MODE
847 | EVP_CIPH_CUSTOM_COPY)
848 || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
849 || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
850 || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
851 || !EVP_CIPHER_meth_set_ctrl(cipher, cryptodev_cipher_ctrl)
852 || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
853 || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
854 || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
855 EVP_CIPHER_meth_free(cipher);
858 aes_192_ctr_cipher = cipher;
860 return aes_192_ctr_cipher;
863 static EVP_CIPHER *aes_256_ctr_cipher = NULL;
864 static const EVP_CIPHER *cryptodev_aes_256_ctr(void)
866 if (aes_256_ctr_cipher == NULL) {
869 if ((cipher = EVP_CIPHER_meth_new(NID_aes_256_ctr, 16, 32)) == NULL
870 || !EVP_CIPHER_meth_set_iv_length(cipher, 14)
871 || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CTR_MODE
872 | EVP_CIPH_CUSTOM_COPY)
873 || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
874 || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
875 || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
876 || !EVP_CIPHER_meth_set_ctrl(cipher, cryptodev_cipher_ctrl)
877 || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
878 || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
879 || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
880 EVP_CIPHER_meth_free(cipher);
883 aes_256_ctr_cipher = cipher;
885 return aes_256_ctr_cipher;
888 static EVP_CIPHER *aes_ecb_cipher = NULL;
889 static const EVP_CIPHER *cryptodev_aes_ecb(void)
891 if (aes_ecb_cipher == NULL) {
892 EVP_CIPHER *cipher = EVP_CIPHER_meth_new(NID_aes_128_ecb, 16, 16);
895 || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_ECB_MODE)
896 || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
897 || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
898 || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
899 || !EVP_CIPHER_meth_set_ctrl(cipher, cryptodev_cipher_ctrl)
900 || !EVP_CIPHER_meth_set_impl_ctx_size(cipher,
903 || !EVP_CIPHER_meth_set_set_asn1_params(cipher,
904 EVP_CIPHER_set_asn1_iv)
905 || !EVP_CIPHER_meth_set_get_asn1_params(cipher,
906 EVP_CIPHER_get_asn1_iv)) {
907 EVP_CIPHER_meth_free(cipher);
910 aes_ecb_cipher = cipher;
912 return aes_ecb_cipher;
915 static EVP_CIPHER *aes_192_ecb_cipher = NULL;
916 static const EVP_CIPHER *cryptodev_aes_192_ecb(void)
918 if (aes_192_ecb_cipher == NULL) {
919 EVP_CIPHER *cipher = EVP_CIPHER_meth_new(NID_aes_192_ecb, 16, 24);
922 || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_ECB_MODE)
923 || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
924 || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
925 || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
926 || !EVP_CIPHER_meth_set_ctrl(cipher, cryptodev_cipher_ctrl)
927 || !EVP_CIPHER_meth_set_impl_ctx_size(cipher,
930 || !EVP_CIPHER_meth_set_set_asn1_params(cipher,
931 EVP_CIPHER_set_asn1_iv)
932 || !EVP_CIPHER_meth_set_get_asn1_params(cipher,
933 EVP_CIPHER_get_asn1_iv)) {
934 EVP_CIPHER_meth_free(cipher);
937 aes_192_ecb_cipher = cipher;
939 return aes_192_ecb_cipher;
942 static EVP_CIPHER *aes_256_ecb_cipher = NULL;
943 static const EVP_CIPHER *cryptodev_aes_256_ecb(void)
945 if (aes_256_ecb_cipher == NULL) {
946 EVP_CIPHER *cipher = EVP_CIPHER_meth_new(NID_aes_256_ecb, 16, 32);
949 || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_ECB_MODE)
950 || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
951 || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
952 || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
953 || !EVP_CIPHER_meth_set_ctrl(cipher, cryptodev_cipher_ctrl)
954 || !EVP_CIPHER_meth_set_impl_ctx_size(cipher,
957 || !EVP_CIPHER_meth_set_set_asn1_params(cipher,
958 EVP_CIPHER_set_asn1_iv)
959 || !EVP_CIPHER_meth_set_get_asn1_params(cipher,
960 EVP_CIPHER_get_asn1_iv)) {
961 EVP_CIPHER_meth_free(cipher);
964 aes_256_ecb_cipher = cipher;
966 return aes_256_ecb_cipher;
970 * Registered by the ENGINE when used to find out how to deal with
971 * a particular NID in the ENGINE. this says what we'll do at the
972 * top level - note, that list is restricted by what we answer with
975 cryptodev_engine_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
976 const int **nids, int nid)
979 return (cryptodev_usable_ciphers(nids));
983 *cipher = cryptodev_rc4();
985 case NID_des_ede3_cbc:
986 *cipher = cryptodev_3des_cbc();
988 case NID_des_ede3_ecb:
989 *cipher = cryptodev_3des_ecb();
992 *cipher = cryptodev_des_cbc();
995 *cipher = cryptodev_bf_cbc();
998 *cipher = cryptodev_cast_cbc();
1000 case NID_aes_128_cbc:
1001 *cipher = cryptodev_aes_cbc();
1003 case NID_aes_192_cbc:
1004 *cipher = cryptodev_aes_192_cbc();
1006 case NID_aes_256_cbc:
1007 *cipher = cryptodev_aes_256_cbc();
1009 case NID_aes_128_ctr:
1010 *cipher = cryptodev_aes_ctr();
1012 case NID_aes_192_ctr:
1013 *cipher = cryptodev_aes_192_ctr();
1015 case NID_aes_256_ctr:
1016 *cipher = cryptodev_aes_256_ctr();
1018 case NID_aes_128_ecb:
1019 *cipher = cryptodev_aes_ecb();
1021 case NID_aes_192_ecb:
1022 *cipher = cryptodev_aes_192_ecb();
1024 case NID_aes_256_ecb:
1025 *cipher = cryptodev_aes_256_ecb();
1031 return (*cipher != NULL);
1034 # ifdef USE_CRYPTODEV_DIGESTS
1036 /* convert digest type to cryptodev */
1037 static int digest_nid_to_cryptodev(int nid)
1041 for (i = 0; digests[i].id; i++)
1042 if (digests[i].nid == nid)
1043 return (digests[i].id);
1047 static int cryptodev_digest_init(EVP_MD_CTX *ctx)
1049 struct dev_crypto_state *state = EVP_MD_CTX_md_data(ctx);
1050 struct session_op *sess = &state->d_sess;
1053 if ((digest = digest_nid_to_cryptodev(EVP_MD_CTX_type(ctx))) == NID_undef) {
1054 printf("cryptodev_digest_init: Can't get digest \n");
1058 memset(state, 0, sizeof(*state));
1060 if ((state->d_fd = get_dev_crypto()) < 0) {
1061 printf("cryptodev_digest_init: Can't get Dev \n");
1065 sess->mackey = NULL;
1066 sess->mackeylen = 0;
1069 if (ioctl(state->d_fd, CIOCGSESSION, sess) < 0) {
1070 put_dev_crypto(state->d_fd);
1072 printf("cryptodev_digest_init: Open session failed\n");
1079 static int cryptodev_digest_update(EVP_MD_CTX *ctx, const void *data,
1082 struct crypt_op cryp;
1083 struct dev_crypto_state *state = EVP_MD_CTX_md_data(ctx);
1084 struct session_op *sess = &state->d_sess;
1087 if (!data || state->d_fd < 0) {
1088 printf("cryptodev_digest_update: illegal inputs \n");
1096 if (!EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) {
1097 /* if application doesn't support one buffer */
1099 OPENSSL_realloc(state->mac_data, state->mac_len + count);
1101 if (!new_mac_data) {
1102 printf("cryptodev_digest_update: realloc failed\n");
1105 state->mac_data = new_mac_data;
1107 memcpy(state->mac_data + state->mac_len, data, count);
1108 state->mac_len += count;
1113 memset(&cryp, 0, sizeof(cryp));
1115 cryp.ses = sess->ses;
1118 cryp.src = (void *) data;
1120 cryp.mac = (void *) state->digest_res;
1121 if (ioctl(state->d_fd, CIOCCRYPT, &cryp) < 0) {
1122 printf("cryptodev_digest_update: digest failed\n");
1128 static int cryptodev_digest_final(EVP_MD_CTX *ctx, unsigned char *md)
1130 struct crypt_op cryp;
1131 struct dev_crypto_state *state = EVP_MD_CTX_md_data(ctx);
1132 struct session_op *sess = &state->d_sess;
1136 if (!md || state->d_fd < 0) {
1137 printf("cryptodev_digest_final: illegal input\n");
1141 if (!EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) {
1142 /* if application doesn't support one buffer */
1143 memset(&cryp, 0, sizeof(cryp));
1144 cryp.ses = sess->ses;
1146 cryp.len = state->mac_len;
1147 cryp.src = state->mac_data;
1149 cryp.mac = (void *) md;
1150 if (ioctl(state->d_fd, CIOCCRYPT, &cryp) < 0) {
1151 printf("cryptodev_digest_final: digest failed\n");
1158 memcpy(md, state->digest_res, EVP_MD_CTX_size(ctx));
1163 static int cryptodev_digest_cleanup(EVP_MD_CTX *ctx)
1166 struct dev_crypto_state *state = EVP_MD_CTX_md_data(ctx);
1167 struct session_op *sess = &state->d_sess;
1172 if (state->d_fd < 0) {
1173 printf("cryptodev_digest_cleanup: illegal input\n");
1177 OPENSSL_free(state->mac_data);
1178 state->mac_data = NULL;
1181 if (ioctl(state->d_fd, CIOCFSESSION, &sess->ses) < 0) {
1182 printf("cryptodev_digest_cleanup: failed to close session\n");
1187 put_dev_crypto(state->d_fd);
1193 static int cryptodev_digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from)
1195 struct dev_crypto_state *fstate = EVP_MD_CTX_md_data(from);
1196 struct dev_crypto_state *dstate = EVP_MD_CTX_md_data(to);
1197 struct session_op *sess;
1200 if (dstate == NULL || fstate == NULL)
1203 memcpy(dstate, fstate, sizeof(struct dev_crypto_state));
1205 sess = &dstate->d_sess;
1207 digest = digest_nid_to_cryptodev(EVP_MD_CTX_type(to));
1209 sess->mackey = NULL;
1210 sess->mackeylen = 0;
1213 dstate->d_fd = get_dev_crypto();
1215 if (ioctl(dstate->d_fd, CIOCGSESSION, sess) < 0) {
1216 put_dev_crypto(dstate->d_fd);
1218 printf("cryptodev_digest_copy: Open session failed\n");
1222 if (fstate->mac_len != 0) {
1223 if (fstate->mac_data != NULL) {
1224 dstate->mac_data = OPENSSL_malloc(fstate->mac_len);
1225 if (dstate->mac_data == NULL) {
1226 printf("cryptodev_digest_copy: mac_data allocation failed\n");
1229 memcpy(dstate->mac_data, fstate->mac_data, fstate->mac_len);
1230 dstate->mac_len = fstate->mac_len;
1237 static EVP_MD *sha1_md = NULL;
1238 static const EVP_MD *cryptodev_sha1(void)
1240 if (sha1_md == NULL) {
1243 if ((md = EVP_MD_meth_new(NID_sha1, NID_undef)) == NULL
1244 || !EVP_MD_meth_set_result_size(md, SHA_DIGEST_LENGTH)
1245 || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_ONESHOT)
1246 || !EVP_MD_meth_set_input_blocksize(md, SHA_CBLOCK)
1247 || !EVP_MD_meth_set_app_datasize(md,
1248 sizeof(struct dev_crypto_state))
1249 || !EVP_MD_meth_set_init(md, cryptodev_digest_init)
1250 || !EVP_MD_meth_set_update(md, cryptodev_digest_update)
1251 || !EVP_MD_meth_set_final(md, cryptodev_digest_final)
1252 || !EVP_MD_meth_set_copy(md, cryptodev_digest_copy)
1253 || !EVP_MD_meth_set_cleanup(md, cryptodev_digest_cleanup)) {
1254 EVP_MD_meth_free(md);
1262 static EVP_MD *sha256_md = NULL;
1263 static const EVP_MD *cryptodev_sha256(void)
1265 if (sha256_md == NULL) {
1268 if ((md = EVP_MD_meth_new(NID_sha256, NID_undef)) == NULL
1269 || !EVP_MD_meth_set_result_size(md, SHA_DIGEST_LENGTH)
1270 || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_ONESHOT)
1271 || !EVP_MD_meth_set_input_blocksize(md, SHA_CBLOCK)
1272 || !EVP_MD_meth_set_app_datasize(md,
1273 sizeof(struct dev_crypto_state))
1274 || !EVP_MD_meth_set_init(md, cryptodev_digest_init)
1275 || !EVP_MD_meth_set_update(md, cryptodev_digest_update)
1276 || !EVP_MD_meth_set_final(md, cryptodev_digest_final)
1277 || !EVP_MD_meth_set_copy(md, cryptodev_digest_copy)
1278 || !EVP_MD_meth_set_cleanup(md, cryptodev_digest_cleanup)) {
1279 EVP_MD_meth_free(md);
1287 static EVP_MD *sha224_md = NULL;
1288 static const EVP_MD *cryptodev_sha224(void)
1290 if (sha224_md == NULL) {
1293 if ((md = EVP_MD_meth_new(NID_sha224, NID_undef)) == NULL
1294 || !EVP_MD_meth_set_result_size(md, SHA_DIGEST_LENGTH)
1295 || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_ONESHOT)
1296 || !EVP_MD_meth_set_input_blocksize(md, SHA_CBLOCK)
1297 || !EVP_MD_meth_set_app_datasize(md,
1298 sizeof(struct dev_crypto_state))
1299 || !EVP_MD_meth_set_init(md, cryptodev_digest_init)
1300 || !EVP_MD_meth_set_update(md, cryptodev_digest_update)
1301 || !EVP_MD_meth_set_final(md, cryptodev_digest_final)
1302 || !EVP_MD_meth_set_copy(md, cryptodev_digest_copy)
1303 || !EVP_MD_meth_set_cleanup(md, cryptodev_digest_cleanup)) {
1304 EVP_MD_meth_free(md);
1312 static EVP_MD *sha384_md = NULL;
1313 static const EVP_MD *cryptodev_sha384(void)
1315 if (sha384_md == NULL) {
1318 if ((md = EVP_MD_meth_new(NID_sha384, NID_undef)) == NULL
1319 || !EVP_MD_meth_set_result_size(md, SHA_DIGEST_LENGTH)
1320 || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_ONESHOT)
1321 || !EVP_MD_meth_set_input_blocksize(md, SHA_CBLOCK)
1322 || !EVP_MD_meth_set_app_datasize(md,
1323 sizeof(struct dev_crypto_state))
1324 || !EVP_MD_meth_set_init(md, cryptodev_digest_init)
1325 || !EVP_MD_meth_set_update(md, cryptodev_digest_update)
1326 || !EVP_MD_meth_set_final(md, cryptodev_digest_final)
1327 || !EVP_MD_meth_set_copy(md, cryptodev_digest_copy)
1328 || !EVP_MD_meth_set_cleanup(md, cryptodev_digest_cleanup)) {
1329 EVP_MD_meth_free(md);
1337 static EVP_MD *sha512_md = NULL;
1338 static const EVP_MD *cryptodev_sha512(void)
1340 if (sha512_md == NULL) {
1343 if ((md = EVP_MD_meth_new(NID_sha512, NID_undef)) == NULL
1344 || !EVP_MD_meth_set_result_size(md, SHA_DIGEST_LENGTH)
1345 || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_ONESHOT)
1346 || !EVP_MD_meth_set_input_blocksize(md, SHA_CBLOCK)
1347 || !EVP_MD_meth_set_app_datasize(md,
1348 sizeof(struct dev_crypto_state))
1349 || !EVP_MD_meth_set_init(md, cryptodev_digest_init)
1350 || !EVP_MD_meth_set_update(md, cryptodev_digest_update)
1351 || !EVP_MD_meth_set_final(md, cryptodev_digest_final)
1352 || !EVP_MD_meth_set_copy(md, cryptodev_digest_copy)
1353 || !EVP_MD_meth_set_cleanup(md, cryptodev_digest_cleanup)) {
1354 EVP_MD_meth_free(md);
1362 static EVP_MD *md5_md = NULL;
1363 static const EVP_MD *cryptodev_md5(void)
1365 if (md5_md == NULL) {
1368 if ((md = EVP_MD_meth_new(NID_md5, NID_undef)) == NULL
1369 || !EVP_MD_meth_set_result_size(md, 16 /* MD5_DIGEST_LENGTH */)
1370 || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_ONESHOT)
1371 || !EVP_MD_meth_set_input_blocksize(md, 64 /* MD5_CBLOCK */)
1372 || !EVP_MD_meth_set_app_datasize(md,
1373 sizeof(struct dev_crypto_state))
1374 || !EVP_MD_meth_set_init(md, cryptodev_digest_init)
1375 || !EVP_MD_meth_set_update(md, cryptodev_digest_update)
1376 || !EVP_MD_meth_set_final(md, cryptodev_digest_final)
1377 || !EVP_MD_meth_set_copy(md, cryptodev_digest_copy)
1378 || !EVP_MD_meth_set_cleanup(md, cryptodev_digest_cleanup)) {
1379 EVP_MD_meth_free(md);
1387 # endif /* USE_CRYPTODEV_DIGESTS */
1390 cryptodev_engine_digests(ENGINE *e, const EVP_MD **digest,
1391 const int **nids, int nid)
1394 return (cryptodev_usable_digests(nids));
1397 # ifdef USE_CRYPTODEV_DIGESTS
1399 *digest = cryptodev_md5();
1402 *digest = cryptodev_sha1();
1405 *digest = cryptodev_sha256();
1408 *digest = cryptodev_sha224();
1411 *digest = cryptodev_sha384();
1414 *digest = cryptodev_sha512();
1417 # endif /* USE_CRYPTODEV_DIGESTS */
1421 return (*digest != NULL);
1424 static int cryptodev_engine_destroy(ENGINE *e)
1426 EVP_CIPHER_meth_free(rc4_cipher);
1428 EVP_CIPHER_meth_free(des_cbc_cipher);
1429 des_cbc_cipher = NULL;
1430 EVP_CIPHER_meth_free(des3_cbc_cipher);
1431 des3_cbc_cipher = NULL;
1432 EVP_CIPHER_meth_free(des3_ecb_cipher);
1433 des3_ecb_cipher = NULL;
1434 EVP_CIPHER_meth_free(bf_cbc_cipher);
1435 bf_cbc_cipher = NULL;
1436 EVP_CIPHER_meth_free(cast_cbc_cipher);
1437 cast_cbc_cipher = NULL;
1438 EVP_CIPHER_meth_free(aes_cbc_cipher);
1439 aes_cbc_cipher = NULL;
1440 EVP_CIPHER_meth_free(aes_192_cbc_cipher);
1441 aes_192_cbc_cipher = NULL;
1442 EVP_CIPHER_meth_free(aes_256_cbc_cipher);
1443 aes_256_cbc_cipher = NULL;
1444 EVP_CIPHER_meth_free(aes_ctr_cipher);
1445 aes_ctr_cipher = NULL;
1446 EVP_CIPHER_meth_free(aes_192_ctr_cipher);
1447 aes_192_ctr_cipher = NULL;
1448 EVP_CIPHER_meth_free(aes_256_ctr_cipher);
1449 aes_256_ctr_cipher = NULL;
1450 EVP_CIPHER_meth_free(aes_ecb_cipher);
1451 aes_ecb_cipher = NULL;
1452 EVP_CIPHER_meth_free(aes_192_ecb_cipher);
1453 aes_192_ecb_cipher = NULL;
1454 EVP_CIPHER_meth_free(aes_256_ecb_cipher);
1455 aes_256_ecb_cipher = NULL;
1456 # ifdef USE_CRYPTODEV_DIGESTS
1457 EVP_MD_meth_free(sha1_md);
1459 EVP_MD_meth_free(sha256_md);
1461 EVP_MD_meth_free(sha224_md);
1463 EVP_MD_meth_free(sha384_md);
1465 EVP_MD_meth_free(sha512_md);
1467 EVP_MD_meth_free(md5_md);
1470 RSA_meth_free(cryptodev_rsa);
1471 cryptodev_rsa = NULL;
1472 # ifndef OPENSSL_NO_DSA
1473 DSA_meth_free(cryptodev_dsa);
1474 cryptodev_dsa = NULL;
1476 # ifndef OPENSSL_NO_DH
1477 DH_meth_free(cryptodev_dh);
1478 cryptodev_dh = NULL;
1484 * Convert a BIGNUM to the representation that /dev/crypto needs.
1485 * Upon completion of use, the caller is responsible for freeing
1488 static int bn2crparam(const BIGNUM *a, struct crparam *crp)
1490 ssize_t bytes, bits;
1496 bits = BN_num_bits(a);
1497 bytes = BN_num_bytes(a);
1499 b = OPENSSL_zalloc(bytes);
1503 crp->crp_p = (void *) b;
1504 crp->crp_nbits = bits;
1510 /* Convert a /dev/crypto parameter to a BIGNUM */
1511 static int crparam2bn(struct crparam *crp, BIGNUM *a)
1516 bytes = (crp->crp_nbits + 7) / 8;
1521 if ((pd = OPENSSL_malloc(bytes)) == NULL)
1524 for (i = 0; i < bytes; i++)
1525 pd[i] = crp->crp_p[bytes - i - 1];
1527 BN_bin2bn(pd, bytes, a);
1533 static void zapparams(struct crypt_kop *kop)
1537 for (i = 0; i < kop->crk_iparams + kop->crk_oparams; i++) {
1538 OPENSSL_free(kop->crk_param[i].crp_p);
1539 kop->crk_param[i].crp_p = NULL;
1540 kop->crk_param[i].crp_nbits = 0;
1545 cryptodev_asym(struct crypt_kop *kop, int rlen, BIGNUM *r, int slen,
1550 if ((fd = get_asym_dev_crypto()) < 0)
1554 kop->crk_param[kop->crk_iparams].crp_p = OPENSSL_zalloc(rlen);
1555 if (kop->crk_param[kop->crk_iparams].crp_p == NULL)
1557 kop->crk_param[kop->crk_iparams].crp_nbits = rlen * 8;
1561 kop->crk_param[kop->crk_iparams + 1].crp_p =
1562 OPENSSL_zalloc(slen);
1563 /* No need to free the kop->crk_iparams parameter if it was allocated,
1564 * callers of this routine have to free allocated parameters through
1565 * zapparams both in case of success and failure
1567 if (kop->crk_param[kop->crk_iparams+1].crp_p == NULL)
1569 kop->crk_param[kop->crk_iparams + 1].crp_nbits = slen * 8;
1573 if (ioctl(fd, CIOCKEY, kop) == 0) {
1575 crparam2bn(&kop->crk_param[kop->crk_iparams], r);
1577 crparam2bn(&kop->crk_param[kop->crk_iparams + 1], s);
1585 cryptodev_bn_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
1586 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)
1588 struct crypt_kop kop;
1592 * Currently, we know we can do mod exp iff we can do any asymmetric
1593 * operations at all.
1595 if (cryptodev_asymfeat == 0) {
1596 ret = BN_mod_exp(r, a, p, m, ctx);
1600 memset(&kop, 0, sizeof(kop));
1601 kop.crk_op = CRK_MOD_EXP;
1603 /* inputs: a^p % m */
1604 if (bn2crparam(a, &kop.crk_param[0]))
1606 if (bn2crparam(p, &kop.crk_param[1]))
1608 if (bn2crparam(m, &kop.crk_param[2]))
1610 kop.crk_iparams = 3;
1612 if (cryptodev_asym(&kop, BN_num_bytes(m), r, 0, NULL)) {
1613 const RSA_METHOD *meth = RSA_PKCS1_OpenSSL();
1614 printf("OCF asym process failed, Running in software\n");
1615 ret = RSA_meth_get_bn_mod_exp(meth)(r, a, p, m, ctx, in_mont);
1617 } else if (ECANCELED == kop.crk_status) {
1618 const RSA_METHOD *meth = RSA_PKCS1_OpenSSL();
1619 printf("OCF hardware operation cancelled. Running in Software\n");
1620 ret = RSA_meth_get_bn_mod_exp(meth)(r, a, p, m, ctx, in_mont);
1622 /* else cryptodev operation worked ok ==> ret = 1 */
1630 cryptodev_rsa_nocrt_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
1634 const BIGNUM *n = NULL;
1635 const BIGNUM *d = NULL;
1638 RSA_get0_key(rsa, &n, NULL, &d);
1639 r = cryptodev_bn_mod_exp(r0, I, d, n, ctx, NULL);
1645 cryptodev_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
1647 struct crypt_kop kop;
1649 const BIGNUM *p = NULL;
1650 const BIGNUM *q = NULL;
1651 const BIGNUM *dmp1 = NULL;
1652 const BIGNUM *dmq1 = NULL;
1653 const BIGNUM *iqmp = NULL;
1654 const BIGNUM *n = NULL;
1656 RSA_get0_factors(rsa, &p, &q);
1657 RSA_get0_crt_params(rsa, &dmp1, &dmq1, &iqmp);
1658 RSA_get0_key(rsa, &n, NULL, NULL);
1660 if (!p || !q || !dmp1 || !dmq1 || !iqmp) {
1661 /* XXX 0 means failure?? */
1665 memset(&kop, 0, sizeof(kop));
1666 kop.crk_op = CRK_MOD_EXP_CRT;
1667 /* inputs: rsa->p rsa->q I rsa->dmp1 rsa->dmq1 rsa->iqmp */
1668 if (bn2crparam(p, &kop.crk_param[0]))
1670 if (bn2crparam(q, &kop.crk_param[1]))
1672 if (bn2crparam(I, &kop.crk_param[2]))
1674 if (bn2crparam(dmp1, &kop.crk_param[3]))
1676 if (bn2crparam(dmq1, &kop.crk_param[4]))
1678 if (bn2crparam(iqmp, &kop.crk_param[5]))
1680 kop.crk_iparams = 6;
1682 if (cryptodev_asym(&kop, BN_num_bytes(n), r0, 0, NULL)) {
1683 const RSA_METHOD *meth = RSA_PKCS1_OpenSSL();
1684 printf("OCF asym process failed, running in Software\n");
1685 ret = RSA_meth_get_mod_exp(meth)(r0, I, rsa, ctx);
1687 } else if (ECANCELED == kop.crk_status) {
1688 const RSA_METHOD *meth = RSA_PKCS1_OpenSSL();
1689 printf("OCF hardware operation cancelled. Running in Software\n");
1690 ret = RSA_meth_get_mod_exp(meth)(r0, I, rsa, ctx);
1692 /* else cryptodev operation worked ok ==> ret = 1 */
1699 # ifndef OPENSSL_NO_DSA
1701 cryptodev_dsa_bn_mod_exp(DSA *dsa, BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
1702 const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
1704 return cryptodev_bn_mod_exp(r, a, p, m, ctx, m_ctx);
1708 cryptodev_dsa_dsa_mod_exp(DSA *dsa, BIGNUM *t1, const BIGNUM *g,
1709 const BIGNUM *u1, const BIGNUM *pub_key,
1710 const BIGNUM *u2, const BIGNUM *p, BN_CTX *ctx,
1713 const BIGNUM *dsag, *dsap, *dsapub_key;
1716 const DSA_METHOD *meth;
1717 int (*bn_mod_exp)(DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *,
1718 BN_CTX *, BN_MONT_CTX *);
1724 /* v = ( g^u1 * y^u2 mod p ) mod q */
1725 /* let t1 = g ^ u1 mod p */
1728 DSA_get0_pqg(dsa, &dsap, NULL, &dsag);
1729 DSA_get0_key(dsa, &dsapub_key, NULL);
1731 meth = DSA_get_method(dsa);
1734 bn_mod_exp = DSA_meth_get_bn_mod_exp(meth);
1735 if (bn_mod_exp == NULL)
1738 if (!bn_mod_exp(dsa, t1, dsag, u1, dsap, ctx, mont))
1741 /* let t2 = y ^ u2 mod p */
1742 if (!bn_mod_exp(dsa, t2, dsapub_key, u2, dsap, ctx, mont))
1744 /* let t1 = t1 * t2 mod p */
1745 if (!BN_mod_mul(t1, t1, t2, dsap, ctx))
1754 static DSA_SIG *cryptodev_dsa_do_sign(const unsigned char *dgst, int dlen,
1757 struct crypt_kop kop;
1759 const BIGNUM *dsap = NULL, *dsaq = NULL, *dsag = NULL;
1760 const BIGNUM *priv_key = NULL;
1761 DSA_SIG *dsasig, *dsaret = NULL;
1763 dsasig = DSA_SIG_new();
1767 memset(&kop, 0, sizeof(kop));
1768 kop.crk_op = CRK_DSA_SIGN;
1770 /* inputs: dgst dsa->p dsa->q dsa->g dsa->priv_key */
1771 kop.crk_param[0].crp_p = (void *) dgst;
1772 kop.crk_param[0].crp_nbits = dlen * 8;
1773 DSA_get0_pqg(dsa, &dsap, &dsaq, &dsag);
1774 DSA_get0_key(dsa, NULL, &priv_key);
1775 if (bn2crparam(dsap, &kop.crk_param[1]))
1777 if (bn2crparam(dsaq, &kop.crk_param[2]))
1779 if (bn2crparam(dsag, &kop.crk_param[3]))
1781 if (bn2crparam(priv_key, &kop.crk_param[4]))
1783 kop.crk_iparams = 5;
1791 if (cryptodev_asym(&kop, BN_num_bytes(dsaq), r,
1792 BN_num_bytes(dsaq), s) == 0) {
1793 DSA_SIG_set0(dsasig, r, s);
1796 dsaret = DSA_meth_get_sign(DSA_OpenSSL())(dgst, dlen, dsa);
1799 if (dsaret != dsasig)
1800 DSA_SIG_free(dsasig);
1801 kop.crk_param[0].crp_p = NULL;
1807 cryptodev_dsa_verify(const unsigned char *dgst, int dlen,
1808 DSA_SIG *sig, DSA *dsa)
1810 struct crypt_kop kop;
1812 const BIGNUM *pr, *ps, *p = NULL, *q = NULL, *g = NULL, *pub_key = NULL;
1814 memset(&kop, 0, sizeof(kop));
1815 kop.crk_op = CRK_DSA_VERIFY;
1817 /* inputs: dgst dsa->p dsa->q dsa->g dsa->pub_key sig->r sig->s */
1818 kop.crk_param[0].crp_p = (void *) dgst;
1819 kop.crk_param[0].crp_nbits = dlen * 8;
1820 DSA_get0_pqg(dsa, &p, &q, &g);
1821 if (bn2crparam(p, &kop.crk_param[1]))
1823 if (bn2crparam(q, &kop.crk_param[2]))
1825 if (bn2crparam(g, &kop.crk_param[3]))
1827 DSA_get0_key(dsa, &pub_key, NULL);
1828 if (bn2crparam(pub_key, &kop.crk_param[4]))
1830 DSA_SIG_get0(sig, &pr, &ps);
1831 if (bn2crparam(pr, &kop.crk_param[5]))
1833 if (bn2crparam(ps, &kop.crk_param[6]))
1835 kop.crk_iparams = 7;
1837 if (cryptodev_asym(&kop, 0, NULL, 0, NULL) == 0) {
1839 * OCF success value is 0, if not zero, change dsaret to fail
1841 if (0 != kop.crk_status)
1844 dsaret = DSA_meth_get_verify(DSA_OpenSSL())(dgst, dlen, sig, dsa);
1847 kop.crk_param[0].crp_p = NULL;
1853 # ifndef OPENSSL_NO_DH
1855 cryptodev_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
1856 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
1859 return (cryptodev_bn_mod_exp(r, a, p, m, ctx, m_ctx));
1863 cryptodev_dh_compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh)
1865 struct crypt_kop kop;
1868 const BIGNUM *p = NULL;
1869 const BIGNUM *priv_key = NULL;
1871 if ((fd = get_asym_dev_crypto()) < 0) {
1872 const DH_METHOD *meth = DH_OpenSSL();
1874 return DH_meth_get_compute_key(meth)(key, pub_key, dh);
1877 DH_get0_pqg(dh, &p, NULL, NULL);
1878 DH_get0_key(dh, NULL, &priv_key);
1880 keylen = BN_num_bits(p);
1882 memset(&kop, 0, sizeof(kop));
1883 kop.crk_op = CRK_DH_COMPUTE_KEY;
1885 /* inputs: dh->priv_key pub_key dh->p key */
1886 if (bn2crparam(priv_key, &kop.crk_param[0]))
1888 if (bn2crparam(pub_key, &kop.crk_param[1]))
1890 if (bn2crparam(p, &kop.crk_param[2]))
1892 kop.crk_iparams = 3;
1894 kop.crk_param[3].crp_p = (void *) key;
1895 kop.crk_param[3].crp_nbits = keylen * 8;
1896 kop.crk_oparams = 1;
1898 if (ioctl(fd, CIOCKEY, &kop) == -1) {
1899 const DH_METHOD *meth = DH_OpenSSL();
1901 dhret = DH_meth_get_compute_key(meth)(key, pub_key, dh);
1904 kop.crk_param[3].crp_p = NULL;
1909 # endif /* ndef OPENSSL_NO_DH */
1912 * ctrl right now is just a wrapper that doesn't do much
1913 * but I expect we'll want some options soon.
1916 cryptodev_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
1918 # ifdef HAVE_SYSLOG_R
1919 struct syslog_data sd = SYSLOG_DATA_INIT;
1924 # ifdef HAVE_SYSLOG_R
1925 syslog_r(LOG_ERR, &sd, "cryptodev_ctrl: unknown command %d", cmd);
1927 syslog(LOG_ERR, "cryptodev_ctrl: unknown command %d", cmd);
1934 void engine_load_cryptodev_int(void)
1936 ENGINE *engine = ENGINE_new();
1941 if ((fd = get_dev_crypto()) < 0) {
1942 ENGINE_free(engine);
1947 * find out what asymmetric crypto algorithms we support
1949 if (ioctl(fd, CIOCASYMFEAT, &cryptodev_asymfeat) == -1) {
1951 ENGINE_free(engine);
1956 if (!ENGINE_set_id(engine, "cryptodev") ||
1957 !ENGINE_set_name(engine, "cryptodev engine") ||
1958 !ENGINE_set_destroy_function(engine, cryptodev_engine_destroy) ||
1959 !ENGINE_set_ciphers(engine, cryptodev_engine_ciphers) ||
1960 !ENGINE_set_digests(engine, cryptodev_engine_digests) ||
1961 !ENGINE_set_ctrl_function(engine, cryptodev_ctrl) ||
1962 !ENGINE_set_cmd_defns(engine, cryptodev_defns)) {
1963 ENGINE_free(engine);
1967 cryptodev_rsa = RSA_meth_dup(RSA_PKCS1_OpenSSL());
1968 if (cryptodev_rsa != NULL) {
1969 RSA_meth_set1_name(cryptodev_rsa, "cryptodev RSA method");
1970 RSA_meth_set_flags(cryptodev_rsa, 0);
1971 if (ENGINE_set_RSA(engine, cryptodev_rsa)) {
1972 if (cryptodev_asymfeat & CRF_MOD_EXP) {
1973 RSA_meth_set_bn_mod_exp(cryptodev_rsa, cryptodev_bn_mod_exp);
1974 if (cryptodev_asymfeat & CRF_MOD_EXP_CRT)
1975 RSA_meth_set_mod_exp(cryptodev_rsa, cryptodev_rsa_mod_exp);
1977 RSA_meth_set_mod_exp(cryptodev_rsa,
1978 cryptodev_rsa_nocrt_mod_exp);
1982 ENGINE_free(engine);
1986 # ifndef OPENSSL_NO_DSA
1987 cryptodev_dsa = DSA_meth_dup(DSA_OpenSSL());
1988 if (cryptodev_dsa != NULL) {
1989 DSA_meth_set1_name(cryptodev_dsa, "cryptodev DSA method");
1990 DSA_meth_set_flags(cryptodev_dsa, 0);
1991 if (ENGINE_set_DSA(engine, cryptodev_dsa)) {
1992 if (cryptodev_asymfeat & CRF_DSA_SIGN)
1993 DSA_meth_set_sign(cryptodev_dsa, cryptodev_dsa_do_sign);
1994 if (cryptodev_asymfeat & CRF_MOD_EXP) {
1995 DSA_meth_set_bn_mod_exp(cryptodev_dsa,
1996 cryptodev_dsa_bn_mod_exp);
1997 DSA_meth_set_mod_exp(cryptodev_dsa, cryptodev_dsa_dsa_mod_exp);
1999 if (cryptodev_asymfeat & CRF_DSA_VERIFY)
2000 DSA_meth_set_verify(cryptodev_dsa, cryptodev_dsa_verify);
2003 ENGINE_free(engine);
2008 # ifndef OPENSSL_NO_DH
2009 cryptodev_dh = DH_meth_dup(DH_OpenSSL());
2010 if (cryptodev_dh != NULL) {
2011 DH_meth_set1_name(cryptodev_dh, "cryptodev DH method");
2012 DH_meth_set_flags(cryptodev_dh, 0);
2013 if (ENGINE_set_DH(engine, cryptodev_dh)) {
2014 if (cryptodev_asymfeat & CRF_MOD_EXP) {
2015 DH_meth_set_bn_mod_exp(cryptodev_dh, cryptodev_mod_exp_dh);
2016 if (cryptodev_asymfeat & CRF_DH_COMPUTE_KEY)
2017 DH_meth_set_compute_key(cryptodev_dh,
2018 cryptodev_dh_compute_key);
2022 ENGINE_free(engine);
2028 ENGINE_free(engine);
2032 #endif /* HAVE_CRYPTODEV */