2 * Copyright 2015-2016 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
17 #include <openssl/engine.h>
18 #include <openssl/sha.h>
19 #include <openssl/aes.h>
20 #include <openssl/rsa.h>
21 #include <openssl/evp.h>
22 #include <openssl/async.h>
23 #include <openssl/bn.h>
24 #include <openssl/crypto.h>
25 #include <openssl/ssl.h>
26 #include <openssl/modes.h>
28 #if (defined(OPENSSL_SYS_UNIX) || defined(OPENSSL_SYS_CYGWIN)) && defined(OPENSSL_THREADS)
37 #define DASYNC_LIB_NAME "DASYNC"
38 #include "e_dasync_err.c"
40 /* Engine Id and Name */
41 static const char *engine_dasync_id = "dasync";
42 static const char *engine_dasync_name = "Dummy Async engine support";
45 /* Engine Lifetime functions */
46 static int dasync_destroy(ENGINE *e);
47 static int dasync_init(ENGINE *e);
48 static int dasync_finish(ENGINE *e);
49 void engine_load_dasync_int(void);
52 /* Set up digests. Just SHA1 for now */
53 static int dasync_digests(ENGINE *e, const EVP_MD **digest,
54 const int **nids, int nid);
56 static void dummy_pause_job(void);
59 static int dasync_sha1_init(EVP_MD_CTX *ctx);
60 static int dasync_sha1_update(EVP_MD_CTX *ctx, const void *data,
62 static int dasync_sha1_final(EVP_MD_CTX *ctx, unsigned char *md);
65 * Holds the EVP_MD object for sha1 in this engine. Set up once only during
66 * engine bind and can then be reused many times.
68 static EVP_MD *_hidden_sha1_md = NULL;
69 static const EVP_MD *dasync_sha1(void)
71 return _hidden_sha1_md;
73 static void destroy_digests(void)
75 EVP_MD_meth_free(_hidden_sha1_md);
76 _hidden_sha1_md = NULL;
79 static int dasync_digest_nids(const int **nids)
81 static int digest_nids[2] = { 0, 0 };
87 if ((md = dasync_sha1()) != NULL)
88 digest_nids[pos++] = EVP_MD_type(md);
98 static int dasync_pub_enc(int flen, const unsigned char *from,
99 unsigned char *to, RSA *rsa, int padding);
100 static int dasync_pub_dec(int flen, const unsigned char *from,
101 unsigned char *to, RSA *rsa, int padding);
102 static int dasync_rsa_priv_enc(int flen, const unsigned char *from,
103 unsigned char *to, RSA *rsa, int padding);
104 static int dasync_rsa_priv_dec(int flen, const unsigned char *from,
105 unsigned char *to, RSA *rsa, int padding);
106 static int dasync_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
109 static int dasync_rsa_init(RSA *rsa);
110 static int dasync_rsa_finish(RSA *rsa);
112 static RSA_METHOD *dasync_rsa_method = NULL;
116 static int dasync_aes128_cbc_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
118 static int dasync_aes128_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
119 const unsigned char *iv, int enc);
120 static int dasync_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
121 const unsigned char *in, size_t inl);
122 static int dasync_aes128_cbc_cleanup(EVP_CIPHER_CTX *ctx);
124 static int dasync_aes128_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type,
126 static int dasync_aes128_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx,
127 const unsigned char *key,
128 const unsigned char *iv,
130 static int dasync_aes128_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx,
132 const unsigned char *in,
134 static int dasync_aes128_cbc_hmac_sha1_cleanup(EVP_CIPHER_CTX *ctx);
136 struct dasync_pipeline_ctx {
137 void *inner_cipher_data;
138 unsigned int numpipes;
139 unsigned char **inbufs;
140 unsigned char **outbufs;
143 unsigned char tlsaad[SSL_MAX_PIPELINES][EVP_AEAD_TLS1_AAD_LEN];
148 * Holds the EVP_CIPHER object for aes_128_cbc in this engine. Set up once only
149 * during engine bind and can then be reused many times.
151 static EVP_CIPHER *_hidden_aes_128_cbc = NULL;
152 static const EVP_CIPHER *dasync_aes_128_cbc(void)
154 return _hidden_aes_128_cbc;
158 * Holds the EVP_CIPHER object for aes_128_cbc_hmac_sha1 in this engine. Set up
159 * once only during engine bind and can then be reused many times.
161 static EVP_CIPHER *_hidden_aes_128_cbc_hmac_sha1 = NULL;
162 static const EVP_CIPHER *dasync_aes_128_cbc_hmac_sha1(void)
164 return _hidden_aes_128_cbc_hmac_sha1;
167 static void destroy_ciphers(void)
169 EVP_CIPHER_meth_free(_hidden_aes_128_cbc);
170 EVP_CIPHER_meth_free(_hidden_aes_128_cbc_hmac_sha1);
171 _hidden_aes_128_cbc = NULL;
172 _hidden_aes_128_cbc_hmac_sha1 = NULL;
175 static int dasync_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
176 const int **nids, int nid);
178 static int dasync_cipher_nids[] = {
180 NID_aes_128_cbc_hmac_sha1,
184 static int bind_dasync(ENGINE *e)
186 /* Setup RSA_METHOD */
187 if ((dasync_rsa_method = RSA_meth_new("Dummy Async RSA method", 0)) == NULL
188 || RSA_meth_set_pub_enc(dasync_rsa_method, dasync_pub_enc) == 0
189 || RSA_meth_set_pub_dec(dasync_rsa_method, dasync_pub_dec) == 0
190 || RSA_meth_set_priv_enc(dasync_rsa_method, dasync_rsa_priv_enc) == 0
191 || RSA_meth_set_priv_dec(dasync_rsa_method, dasync_rsa_priv_dec) == 0
192 || RSA_meth_set_mod_exp(dasync_rsa_method, dasync_rsa_mod_exp) == 0
193 || RSA_meth_set_bn_mod_exp(dasync_rsa_method, BN_mod_exp_mont) == 0
194 || RSA_meth_set_init(dasync_rsa_method, dasync_rsa_init) == 0
195 || RSA_meth_set_finish(dasync_rsa_method, dasync_rsa_finish) == 0) {
196 DASYNCerr(DASYNC_F_BIND_DASYNC, DASYNC_R_INIT_FAILED);
200 /* Ensure the dasync error handling is set up */
201 ERR_load_DASYNC_strings();
203 if (!ENGINE_set_id(e, engine_dasync_id)
204 || !ENGINE_set_name(e, engine_dasync_name)
205 || !ENGINE_set_RSA(e, dasync_rsa_method)
206 || !ENGINE_set_digests(e, dasync_digests)
207 || !ENGINE_set_ciphers(e, dasync_ciphers)
208 || !ENGINE_set_destroy_function(e, dasync_destroy)
209 || !ENGINE_set_init_function(e, dasync_init)
210 || !ENGINE_set_finish_function(e, dasync_finish)) {
211 DASYNCerr(DASYNC_F_BIND_DASYNC, DASYNC_R_INIT_FAILED);
216 * Set up the EVP_CIPHER and EVP_MD objects for the ciphers/digests
217 * supplied by this engine
219 _hidden_sha1_md = EVP_MD_meth_new(NID_sha1, NID_sha1WithRSAEncryption);
220 if (_hidden_sha1_md == NULL
221 || !EVP_MD_meth_set_result_size(_hidden_sha1_md, SHA_DIGEST_LENGTH)
222 || !EVP_MD_meth_set_input_blocksize(_hidden_sha1_md, SHA_CBLOCK)
223 || !EVP_MD_meth_set_app_datasize(_hidden_sha1_md,
224 sizeof(EVP_MD *) + sizeof(SHA_CTX))
225 || !EVP_MD_meth_set_flags(_hidden_sha1_md, EVP_MD_FLAG_DIGALGID_ABSENT)
226 || !EVP_MD_meth_set_init(_hidden_sha1_md, dasync_sha1_init)
227 || !EVP_MD_meth_set_update(_hidden_sha1_md, dasync_sha1_update)
228 || !EVP_MD_meth_set_final(_hidden_sha1_md, dasync_sha1_final)) {
229 EVP_MD_meth_free(_hidden_sha1_md);
230 _hidden_sha1_md = NULL;
233 _hidden_aes_128_cbc = EVP_CIPHER_meth_new(NID_aes_128_cbc,
236 if (_hidden_aes_128_cbc == NULL
237 || !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_cbc,16)
238 || !EVP_CIPHER_meth_set_flags(_hidden_aes_128_cbc,
239 EVP_CIPH_FLAG_DEFAULT_ASN1
241 | EVP_CIPH_FLAG_PIPELINE)
242 || !EVP_CIPHER_meth_set_init(_hidden_aes_128_cbc,
243 dasync_aes128_init_key)
244 || !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_cbc,
245 dasync_aes128_cbc_cipher)
246 || !EVP_CIPHER_meth_set_cleanup(_hidden_aes_128_cbc,
247 dasync_aes128_cbc_cleanup)
248 || !EVP_CIPHER_meth_set_ctrl(_hidden_aes_128_cbc,
249 dasync_aes128_cbc_ctrl)
250 || !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_cbc,
251 sizeof(struct dasync_pipeline_ctx))) {
252 EVP_CIPHER_meth_free(_hidden_aes_128_cbc);
253 _hidden_aes_128_cbc = NULL;
256 _hidden_aes_128_cbc_hmac_sha1 = EVP_CIPHER_meth_new(
257 NID_aes_128_cbc_hmac_sha1,
260 if (_hidden_aes_128_cbc_hmac_sha1 == NULL
261 || !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_cbc_hmac_sha1,16)
262 || !EVP_CIPHER_meth_set_flags(_hidden_aes_128_cbc_hmac_sha1,
264 | EVP_CIPH_FLAG_DEFAULT_ASN1
265 | EVP_CIPH_FLAG_AEAD_CIPHER
266 | EVP_CIPH_FLAG_PIPELINE)
267 || !EVP_CIPHER_meth_set_init(_hidden_aes_128_cbc_hmac_sha1,
268 dasync_aes128_cbc_hmac_sha1_init_key)
269 || !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_cbc_hmac_sha1,
270 dasync_aes128_cbc_hmac_sha1_cipher)
271 || !EVP_CIPHER_meth_set_cleanup(_hidden_aes_128_cbc_hmac_sha1,
272 dasync_aes128_cbc_hmac_sha1_cleanup)
273 || !EVP_CIPHER_meth_set_ctrl(_hidden_aes_128_cbc_hmac_sha1,
274 dasync_aes128_cbc_hmac_sha1_ctrl)
275 || !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_cbc_hmac_sha1,
276 sizeof(struct dasync_pipeline_ctx))) {
277 EVP_CIPHER_meth_free(_hidden_aes_128_cbc_hmac_sha1);
278 _hidden_aes_128_cbc_hmac_sha1 = NULL;
284 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
285 static int bind_helper(ENGINE *e, const char *id)
287 if (id && (strcmp(id, engine_dasync_id) != 0))
294 IMPLEMENT_DYNAMIC_CHECK_FN()
295 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
298 static ENGINE *engine_dasync(void)
300 ENGINE *ret = ENGINE_new();
303 if (!bind_dasync(ret)) {
310 void engine_load_dasync_int(void)
312 ENGINE *toadd = engine_dasync();
320 static int dasync_init(ENGINE *e)
326 static int dasync_finish(ENGINE *e)
332 static int dasync_destroy(ENGINE *e)
336 RSA_meth_free(dasync_rsa_method);
337 ERR_unload_DASYNC_strings();
341 static int dasync_digests(ENGINE *e, const EVP_MD **digest,
342 const int **nids, int nid)
346 /* We are returning a list of supported nids */
347 return dasync_digest_nids(nids);
349 /* We are being asked for a specific digest */
352 *digest = dasync_sha1();
362 static int dasync_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
363 const int **nids, int nid)
366 if (cipher == NULL) {
367 /* We are returning a list of supported nids */
368 *nids = dasync_cipher_nids;
369 return (sizeof(dasync_cipher_nids) -
370 1) / sizeof(dasync_cipher_nids[0]);
372 /* We are being asked for a specific cipher */
374 case NID_aes_128_cbc:
375 *cipher = dasync_aes_128_cbc();
377 case NID_aes_128_cbc_hmac_sha1:
378 *cipher = dasync_aes_128_cbc_hmac_sha1();
388 static void wait_cleanup(ASYNC_WAIT_CTX *ctx, const void *key,
389 OSSL_ASYNC_FD readfd, void *pvwritefd)
391 OSSL_ASYNC_FD *pwritefd = (OSSL_ASYNC_FD *)pvwritefd;
392 #if defined(ASYNC_WIN)
394 CloseHandle(*pwritefd);
395 #elif defined(ASYNC_POSIX)
399 OPENSSL_free(pwritefd);
402 #define DUMMY_CHAR 'X'
404 static void dummy_pause_job(void) {
406 ASYNC_WAIT_CTX *waitctx;
407 OSSL_ASYNC_FD pipefds[2] = {0, 0};
408 OSSL_ASYNC_FD *writefd;
409 #if defined(ASYNC_WIN)
410 DWORD numwritten, numread;
411 char buf = DUMMY_CHAR;
412 #elif defined(ASYNC_POSIX)
413 char buf = DUMMY_CHAR;
416 if ((job = ASYNC_get_current_job()) == NULL)
419 waitctx = ASYNC_get_wait_ctx(job);
421 if (ASYNC_WAIT_CTX_get_fd(waitctx, engine_dasync_id, &pipefds[0],
422 (void **)&writefd)) {
423 pipefds[1] = *writefd;
425 writefd = OPENSSL_malloc(sizeof(*writefd));
428 #if defined(ASYNC_WIN)
429 if (CreatePipe(&pipefds[0], &pipefds[1], NULL, 256) == 0) {
430 OPENSSL_free(writefd);
433 #elif defined(ASYNC_POSIX)
434 if (pipe(pipefds) != 0) {
435 OPENSSL_free(writefd);
439 *writefd = pipefds[1];
441 if(!ASYNC_WAIT_CTX_set_wait_fd(waitctx, engine_dasync_id, pipefds[0],
442 writefd, wait_cleanup)) {
443 wait_cleanup(waitctx, engine_dasync_id, pipefds[0], writefd);
448 * In the Dummy async engine we are cheating. We signal that the job
449 * is complete by waking it before the call to ASYNC_pause_job(). A real
450 * async engine would only wake when the job was actually complete
452 #if defined(ASYNC_WIN)
453 WriteFile(pipefds[1], &buf, 1, &numwritten, NULL);
454 #elif defined(ASYNC_POSIX)
455 if (write(pipefds[1], &buf, 1) < 0)
459 /* Ignore errors - we carry on anyway */
462 /* Clear the wake signal */
463 #if defined(ASYNC_WIN)
464 ReadFile(pipefds[0], &buf, 1, &numread, NULL);
465 #elif defined(ASYNC_POSIX)
466 if (read(pipefds[0], &buf, 1) < 0)
472 * SHA1 implementation. At the moment we just defer to the standard
476 #define data(ctx) ((SHA_CTX *)EVP_MD_CTX_md_data(ctx))
477 static int dasync_sha1_init(EVP_MD_CTX *ctx)
481 return SHA1_Init(data(ctx));
484 static int dasync_sha1_update(EVP_MD_CTX *ctx, const void *data,
489 return SHA1_Update(data(ctx), data, (size_t)count);
492 static int dasync_sha1_final(EVP_MD_CTX *ctx, unsigned char *md)
496 return SHA1_Final(md, data(ctx));
503 static int dasync_pub_enc(int flen, const unsigned char *from,
504 unsigned char *to, RSA *rsa, int padding) {
505 /* Ignore errors - we carry on anyway */
507 return RSA_meth_get_pub_enc(RSA_PKCS1_OpenSSL())
508 (flen, from, to, rsa, padding);
511 static int dasync_pub_dec(int flen, const unsigned char *from,
512 unsigned char *to, RSA *rsa, int padding) {
513 /* Ignore errors - we carry on anyway */
515 return RSA_meth_get_pub_dec(RSA_PKCS1_OpenSSL())
516 (flen, from, to, rsa, padding);
519 static int dasync_rsa_priv_enc(int flen, const unsigned char *from,
520 unsigned char *to, RSA *rsa, int padding)
522 /* Ignore errors - we carry on anyway */
524 return RSA_meth_get_priv_enc(RSA_PKCS1_OpenSSL())
525 (flen, from, to, rsa, padding);
528 static int dasync_rsa_priv_dec(int flen, const unsigned char *from,
529 unsigned char *to, RSA *rsa, int padding)
531 /* Ignore errors - we carry on anyway */
533 return RSA_meth_get_priv_dec(RSA_PKCS1_OpenSSL())
534 (flen, from, to, rsa, padding);
537 static int dasync_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
539 /* Ignore errors - we carry on anyway */
541 return RSA_meth_get_mod_exp(RSA_PKCS1_OpenSSL())(r0, I, rsa, ctx);
544 static int dasync_rsa_init(RSA *rsa)
546 return RSA_meth_get_init(RSA_PKCS1_OpenSSL())(rsa);
548 static int dasync_rsa_finish(RSA *rsa)
550 return RSA_meth_get_finish(RSA_PKCS1_OpenSSL())(rsa);
553 /* Cipher helper functions */
555 static int dasync_cipher_ctrl_helper(EVP_CIPHER_CTX *ctx, int type, int arg,
556 void *ptr, int aeadcapable)
559 struct dasync_pipeline_ctx *pipe_ctx =
560 (struct dasync_pipeline_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
562 if (pipe_ctx == NULL)
566 case EVP_CTRL_SET_PIPELINE_OUTPUT_BUFS:
567 pipe_ctx->numpipes = arg;
568 pipe_ctx->outbufs = (unsigned char **)ptr;
571 case EVP_CTRL_SET_PIPELINE_INPUT_BUFS:
572 pipe_ctx->numpipes = arg;
573 pipe_ctx->inbufs = (unsigned char **)ptr;
576 case EVP_CTRL_SET_PIPELINE_INPUT_LENS:
577 pipe_ctx->numpipes = arg;
578 pipe_ctx->lens = (size_t *)ptr;
581 case EVP_CTRL_AEAD_SET_MAC_KEY:
584 EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx->inner_cipher_data);
585 ret = EVP_CIPHER_meth_get_ctrl(EVP_aes_128_cbc_hmac_sha1())
586 (ctx, type, arg, ptr);
587 EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx);
590 case EVP_CTRL_AEAD_TLS1_AAD:
592 unsigned char *p = ptr;
595 if (!aeadcapable || arg != EVP_AEAD_TLS1_AAD_LEN)
598 if (pipe_ctx->aadctr >= SSL_MAX_PIPELINES)
601 memcpy(pipe_ctx->tlsaad[pipe_ctx->aadctr], ptr,
602 EVP_AEAD_TLS1_AAD_LEN);
605 len = p[arg - 2] << 8 | p[arg - 1];
608 if ((p[arg - 4] << 8 | p[arg - 3]) >= TLS1_1_VERSION) {
609 len -= AES_BLOCK_SIZE;
612 return ((len + SHA_DIGEST_LENGTH + AES_BLOCK_SIZE)
613 & -AES_BLOCK_SIZE) - len;
615 return SHA_DIGEST_LENGTH;
626 static int dasync_cipher_init_key_helper(EVP_CIPHER_CTX *ctx,
627 const unsigned char *key,
628 const unsigned char *iv, int enc,
629 const EVP_CIPHER *cipher)
632 struct dasync_pipeline_ctx *pipe_ctx =
633 (struct dasync_pipeline_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
635 if (pipe_ctx->inner_cipher_data == NULL
636 && EVP_CIPHER_impl_ctx_size(cipher) != 0) {
637 pipe_ctx->inner_cipher_data = OPENSSL_zalloc(
638 EVP_CIPHER_impl_ctx_size(cipher));
639 if (pipe_ctx->inner_cipher_data == NULL) {
640 DASYNCerr(DASYNC_F_DASYNC_CIPHER_INIT_KEY_HELPER,
641 ERR_R_MALLOC_FAILURE);
646 pipe_ctx->numpipes = 0;
647 pipe_ctx->aadctr = 0;
649 EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx->inner_cipher_data);
650 ret = EVP_CIPHER_meth_get_init(cipher)(ctx, key, iv, enc);
651 EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx);
656 static int dasync_cipher_helper(EVP_CIPHER_CTX *ctx, unsigned char *out,
657 const unsigned char *in, size_t inl,
658 const EVP_CIPHER *cipher)
661 unsigned int i, pipes;
662 struct dasync_pipeline_ctx *pipe_ctx =
663 (struct dasync_pipeline_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
665 pipes = pipe_ctx->numpipes;
666 EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx->inner_cipher_data);
668 if (pipe_ctx->aadctr != 0) {
669 if (pipe_ctx->aadctr != 1)
671 EVP_CIPHER_meth_get_ctrl(cipher)
672 (ctx, EVP_CTRL_AEAD_TLS1_AAD,
673 EVP_AEAD_TLS1_AAD_LEN,
674 pipe_ctx->tlsaad[0]);
676 ret = EVP_CIPHER_meth_get_do_cipher(cipher)
679 if (pipe_ctx->aadctr > 0 && pipe_ctx->aadctr != pipes)
681 for (i = 0; i < pipes; i++) {
682 if (pipe_ctx->aadctr > 0) {
683 EVP_CIPHER_meth_get_ctrl(cipher)
684 (ctx, EVP_CTRL_AEAD_TLS1_AAD,
685 EVP_AEAD_TLS1_AAD_LEN,
686 pipe_ctx->tlsaad[i]);
688 ret = ret && EVP_CIPHER_meth_get_do_cipher(cipher)
689 (ctx, pipe_ctx->outbufs[i], pipe_ctx->inbufs[i],
692 pipe_ctx->numpipes = 0;
694 pipe_ctx->aadctr = 0;
695 EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx);
699 static int dasync_cipher_cleanup_helper(EVP_CIPHER_CTX *ctx,
700 const EVP_CIPHER *cipher)
702 struct dasync_pipeline_ctx *pipe_ctx =
703 (struct dasync_pipeline_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
705 OPENSSL_clear_free(pipe_ctx->inner_cipher_data,
706 EVP_CIPHER_impl_ctx_size(cipher));
712 * AES128 CBC Implementation
715 static int dasync_aes128_cbc_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
718 return dasync_cipher_ctrl_helper(ctx, type, arg, ptr, 0);
721 static int dasync_aes128_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
722 const unsigned char *iv, int enc)
724 return dasync_cipher_init_key_helper(ctx, key, iv, enc, EVP_aes_128_cbc());
727 static int dasync_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
728 const unsigned char *in, size_t inl)
730 return dasync_cipher_helper(ctx, out, in, inl, EVP_aes_128_cbc());
733 static int dasync_aes128_cbc_cleanup(EVP_CIPHER_CTX *ctx)
735 return dasync_cipher_cleanup_helper(ctx, EVP_aes_128_cbc());
740 * AES128 CBC HMAC SHA1 Implementation
743 static int dasync_aes128_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type,
746 return dasync_cipher_ctrl_helper(ctx, type, arg, ptr, 1);
749 static int dasync_aes128_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx,
750 const unsigned char *key,
751 const unsigned char *iv,
754 return dasync_cipher_init_key_helper(ctx, key, iv, enc,
755 EVP_aes_128_cbc_hmac_sha1());
758 static int dasync_aes128_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx,
760 const unsigned char *in,
763 return dasync_cipher_helper(ctx, out, in, inl, EVP_aes_128_cbc_hmac_sha1());
766 static int dasync_aes128_cbc_hmac_sha1_cleanup(EVP_CIPHER_CTX *ctx)
768 return dasync_cipher_cleanup_helper(ctx, EVP_aes_128_cbc_hmac_sha1());