| /* evp_locl.h */ |
| /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL |
| * project 2000. |
| */ |
| /* ==================================================================== |
| * Copyright (c) 1999 The OpenSSL Project. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. All advertising materials mentioning features or use of this |
| * software must display the following acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
| * |
| * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| * endorse or promote products derived from this software without |
| * prior written permission. For written permission, please contact |
| * licensing@OpenSSL.org. |
| * |
| * 5. Products derived from this software may not be called "OpenSSL" |
| * nor may "OpenSSL" appear in their names without prior written |
| * permission of the OpenSSL Project. |
| * |
| * 6. Redistributions of any form whatsoever must retain the following |
| * acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| * OF THE POSSIBILITY OF SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This product includes cryptographic software written by Eric Young |
| * (eay@cryptsoft.com). This product includes software written by Tim |
| * Hudson (tjh@cryptsoft.com). |
| * |
| */ |
| |
| /* Macros to code block cipher wrappers */ |
| |
| /* Wrapper functions for each cipher mode */ |
| |
| #define BLOCK_CIPHER_ecb_loop() \ |
| size_t i, bl; \ |
| bl = ctx->cipher->block_size;\ |
| if(inl < bl) return 1;\ |
| inl -= bl; \ |
| for(i=0; i <= inl; i+=bl) |
| |
| #define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \ |
| static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \ |
| {\ |
| BLOCK_CIPHER_ecb_loop() \ |
| cprefix##_ecb_encrypt(in + i, out + i, &((kstruct *)ctx->cipher_data)->ksched, ctx->encrypt);\ |
| return 1;\ |
| } |
| |
| #define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2)) |
| |
| #define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \ |
| static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \ |
| {\ |
| while(inl>=EVP_MAXCHUNK)\ |
| {\ |
| cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num);\ |
| inl-=EVP_MAXCHUNK;\ |
| in +=EVP_MAXCHUNK;\ |
| out+=EVP_MAXCHUNK;\ |
| }\ |
| if (inl)\ |
| cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num);\ |
| return 1;\ |
| } |
| |
| #define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \ |
| static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \ |
| {\ |
| while(inl>=EVP_MAXCHUNK) \ |
| {\ |
| cprefix##_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, ctx->encrypt);\ |
| inl-=EVP_MAXCHUNK;\ |
| in +=EVP_MAXCHUNK;\ |
| out+=EVP_MAXCHUNK;\ |
| }\ |
| if (inl)\ |
| cprefix##_cbc_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, ctx->encrypt);\ |
| return 1;\ |
| } |
| |
| #define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \ |
| static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \ |
| {\ |
| size_t chunk=EVP_MAXCHUNK;\ |
| if (cbits==1) chunk>>=3;\ |
| if (inl<chunk) chunk=inl;\ |
| while(inl && inl>=chunk)\ |
| {\ |
| cprefix##_cfb##cbits##_encrypt(in, out, (long)((cbits==1) && !(ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) ?inl*8:inl), &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num, ctx->encrypt);\ |
| inl-=chunk;\ |
| in +=chunk;\ |
| out+=chunk;\ |
| if(inl<chunk) chunk=inl;\ |
| }\ |
| return 1;\ |
| } |
| |
| #define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \ |
| BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \ |
| BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \ |
| BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \ |
| BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) |
| |
| #define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \ |
| key_len, iv_len, flags, init_key, cleanup, \ |
| set_asn1, get_asn1, ctrl) \ |
| static const EVP_CIPHER cname##_##mode = { \ |
| nid##_##nmode, block_size, key_len, iv_len, \ |
| flags | EVP_CIPH_##MODE##_MODE, \ |
| init_key, \ |
| cname##_##mode##_cipher, \ |
| cleanup, \ |
| sizeof(kstruct), \ |
| set_asn1, get_asn1,\ |
| ctrl, \ |
| NULL \ |
| }; \ |
| const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; } |
| |
| #define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \ |
| iv_len, flags, init_key, cleanup, set_asn1, \ |
| get_asn1, ctrl) \ |
| BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \ |
| iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl) |
| |
| #define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \ |
| iv_len, cbits, flags, init_key, cleanup, \ |
| set_asn1, get_asn1, ctrl) \ |
| BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \ |
| key_len, iv_len, flags, init_key, cleanup, set_asn1, \ |
| get_asn1, ctrl) |
| |
| #define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \ |
| iv_len, cbits, flags, init_key, cleanup, \ |
| set_asn1, get_asn1, ctrl) \ |
| BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \ |
| key_len, iv_len, flags, init_key, cleanup, set_asn1, \ |
| get_asn1, ctrl) |
| |
| #define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \ |
| flags, init_key, cleanup, set_asn1, \ |
| get_asn1, ctrl) \ |
| BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \ |
| 0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl) |
| |
| #define BLOCK_CIPHER_defs(cname, kstruct, \ |
| nid, block_size, key_len, iv_len, cbits, flags, \ |
| init_key, cleanup, set_asn1, get_asn1, ctrl) \ |
| BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \ |
| init_key, cleanup, set_asn1, get_asn1, ctrl) \ |
| BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \ |
| flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \ |
| BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \ |
| flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \ |
| BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \ |
| init_key, cleanup, set_asn1, get_asn1, ctrl) |
| |
| |
| /* |
| #define BLOCK_CIPHER_defs(cname, kstruct, \ |
| nid, block_size, key_len, iv_len, flags,\ |
| init_key, cleanup, set_asn1, get_asn1, ctrl)\ |
| static const EVP_CIPHER cname##_cbc = {\ |
| nid##_cbc, block_size, key_len, iv_len, \ |
| flags | EVP_CIPH_CBC_MODE,\ |
| init_key,\ |
| cname##_cbc_cipher,\ |
| cleanup,\ |
| sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ |
| sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ |
| set_asn1, get_asn1,\ |
| ctrl, \ |
| NULL \ |
| };\ |
| const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\ |
| static const EVP_CIPHER cname##_cfb = {\ |
| nid##_cfb64, 1, key_len, iv_len, \ |
| flags | EVP_CIPH_CFB_MODE,\ |
| init_key,\ |
| cname##_cfb_cipher,\ |
| cleanup,\ |
| sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ |
| sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ |
| set_asn1, get_asn1,\ |
| ctrl,\ |
| NULL \ |
| };\ |
| const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\ |
| static const EVP_CIPHER cname##_ofb = {\ |
| nid##_ofb64, 1, key_len, iv_len, \ |
| flags | EVP_CIPH_OFB_MODE,\ |
| init_key,\ |
| cname##_ofb_cipher,\ |
| cleanup,\ |
| sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ |
| sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ |
| set_asn1, get_asn1,\ |
| ctrl,\ |
| NULL \ |
| };\ |
| const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\ |
| static const EVP_CIPHER cname##_ecb = {\ |
| nid##_ecb, block_size, key_len, iv_len, \ |
| flags | EVP_CIPH_ECB_MODE,\ |
| init_key,\ |
| cname##_ecb_cipher,\ |
| cleanup,\ |
| sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ |
| sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ |
| set_asn1, get_asn1,\ |
| ctrl,\ |
| NULL \ |
| };\ |
| const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; } |
| */ |
| |
| #define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \ |
| block_size, key_len, iv_len, cbits, \ |
| flags, init_key, \ |
| cleanup, set_asn1, get_asn1, ctrl) \ |
| BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \ |
| BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \ |
| cbits, flags, init_key, cleanup, set_asn1, \ |
| get_asn1, ctrl) |
| |
| #define EVP_C_DATA(kstruct, ctx) ((kstruct *)(ctx)->cipher_data) |
| |
| #define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len) \ |
| BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \ |
| BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \ |
| NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \ |
| 0, cipher##_init_key, NULL, \ |
| EVP_CIPHER_set_asn1_iv, \ |
| EVP_CIPHER_get_asn1_iv, \ |
| NULL) |
| |
| struct evp_pkey_ctx_st |
| { |
| /* Method associated with this operation */ |
| const EVP_PKEY_METHOD *pmeth; |
| /* Engine that implements this method or NULL if builtin */ |
| ENGINE *engine; |
| /* Key: may be NULL */ |
| EVP_PKEY *pkey; |
| /* Peer key for key agreement, may be NULL */ |
| EVP_PKEY *peerkey; |
| /* Actual operation */ |
| int operation; |
| /* Algorithm specific data */ |
| void *data; |
| /* Application specific data */ |
| void *app_data; |
| /* Keygen callback */ |
| EVP_PKEY_gen_cb *pkey_gencb; |
| /* implementation specific keygen data */ |
| int *keygen_info; |
| int keygen_info_count; |
| } /* EVP_PKEY_CTX */; |
| |
| #define EVP_PKEY_FLAG_DYNAMIC 1 |
| |
| struct evp_pkey_method_st |
| { |
| int pkey_id; |
| int flags; |
| |
| int (*init)(EVP_PKEY_CTX *ctx); |
| int (*copy)(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src); |
| void (*cleanup)(EVP_PKEY_CTX *ctx); |
| |
| int (*paramgen_init)(EVP_PKEY_CTX *ctx); |
| int (*paramgen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey); |
| |
| int (*keygen_init)(EVP_PKEY_CTX *ctx); |
| int (*keygen)(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey); |
| |
| int (*sign_init)(EVP_PKEY_CTX *ctx); |
| int (*sign)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen, |
| const unsigned char *tbs, size_t tbslen); |
| |
| int (*verify_init)(EVP_PKEY_CTX *ctx); |
| int (*verify)(EVP_PKEY_CTX *ctx, |
| const unsigned char *sig, size_t siglen, |
| const unsigned char *tbs, size_t tbslen); |
| |
| int (*verify_recover_init)(EVP_PKEY_CTX *ctx); |
| int (*verify_recover)(EVP_PKEY_CTX *ctx, |
| unsigned char *rout, size_t *routlen, |
| const unsigned char *sig, size_t siglen); |
| |
| int (*signctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx); |
| int (*signctx)(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen, |
| EVP_MD_CTX *mctx); |
| |
| int (*verifyctx_init)(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx); |
| int (*verifyctx)(EVP_PKEY_CTX *ctx, const unsigned char *sig,int siglen, |
| EVP_MD_CTX *mctx); |
| |
| int (*encrypt_init)(EVP_PKEY_CTX *ctx); |
| int (*encrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen, |
| const unsigned char *in, size_t inlen); |
| |
| int (*decrypt_init)(EVP_PKEY_CTX *ctx); |
| int (*decrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen, |
| const unsigned char *in, size_t inlen); |
| |
| int (*derive_init)(EVP_PKEY_CTX *ctx); |
| int (*derive)(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen); |
| |
| int (*ctrl)(EVP_PKEY_CTX *ctx, int type, int p1, void *p2); |
| int (*ctrl_str)(EVP_PKEY_CTX *ctx, const char *type, const char *value); |
| |
| |
| } /* EVP_PKEY_METHOD */; |
| |
| void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx); |