diff options
Diffstat (limited to 'openssl/crypto/evp/enc_min.c')
| -rw-r--r-- | openssl/crypto/evp/enc_min.c | 390 |
1 files changed, 0 insertions, 390 deletions
diff --git a/openssl/crypto/evp/enc_min.c b/openssl/crypto/evp/enc_min.c deleted file mode 100644 index 7fba38ee2..000000000 --- a/openssl/crypto/evp/enc_min.c +++ /dev/null @@ -1,390 +0,0 @@ -/* crypto/evp/enc_min.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * 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 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 acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS 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 AUTHOR OR 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. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ - -#include <stdio.h> -#include "cryptlib.h" -#include <openssl/evp.h> -#include <openssl/err.h> -#include <openssl/rand.h> -#ifndef OPENSSL_NO_ENGINE -#include <openssl/engine.h> -#endif -#include "evp_locl.h" - -void EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *ctx) - { -#ifdef OPENSSL_FIPS - FIPS_selftest_check(); -#endif - memset(ctx,0,sizeof(EVP_CIPHER_CTX)); - /* ctx->cipher=NULL; */ - } - -#ifdef OPENSSL_FIPS - -/* The purpose of these is to trap programs that attempt to use non FIPS - * algorithms in FIPS mode and ignore the errors. - */ - -static int bad_init(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv, int enc) - { FIPS_ERROR_IGNORED("Cipher init"); return 0;} - -static int bad_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, unsigned int inl) - { FIPS_ERROR_IGNORED("Cipher update"); return 0;} - -/* NB: no cleanup because it is allowed after failed init */ - -static int bad_set_asn1(EVP_CIPHER_CTX *ctx, ASN1_TYPE *typ) - { FIPS_ERROR_IGNORED("Cipher set_asn1"); return 0;} -static int bad_get_asn1(EVP_CIPHER_CTX *ctx, ASN1_TYPE *typ) - { FIPS_ERROR_IGNORED("Cipher get_asn1"); return 0;} -static int bad_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr) - { FIPS_ERROR_IGNORED("Cipher ctrl"); return 0;} - -static const EVP_CIPHER bad_cipher = - { - 0, - 0, - 0, - 0, - 0, - bad_init, - bad_do_cipher, - NULL, - 0, - bad_set_asn1, - bad_get_asn1, - bad_ctrl, - NULL - }; - -#endif - -#ifndef OPENSSL_NO_ENGINE - -#ifdef OPENSSL_FIPS - -static int do_engine_null(ENGINE *impl) { return 0;} -static int do_evp_enc_engine_null(EVP_CIPHER_CTX *ctx, - const EVP_CIPHER **pciph, ENGINE *impl) - { return 1; } - -static int (*do_engine_finish)(ENGINE *impl) - = do_engine_null; - -static int (*do_evp_enc_engine) - (EVP_CIPHER_CTX *ctx, const EVP_CIPHER **pciph, ENGINE *impl) - = do_evp_enc_engine_null; - -void int_EVP_CIPHER_set_engine_callbacks( - int (*eng_ciph_fin)(ENGINE *impl), - int (*eng_ciph_evp) - (EVP_CIPHER_CTX *ctx, const EVP_CIPHER **pciph, ENGINE *impl)) - { - do_engine_finish = eng_ciph_fin; - do_evp_enc_engine = eng_ciph_evp; - } - -#else - -#define do_engine_finish ENGINE_finish - -static int do_evp_enc_engine(EVP_CIPHER_CTX *ctx, const EVP_CIPHER **pcipher, ENGINE *impl) - { - if(impl) - { - if (!ENGINE_init(impl)) - { - EVPerr(EVP_F_DO_EVP_ENC_ENGINE, EVP_R_INITIALIZATION_ERROR); - return 0; - } - } - else - /* Ask if an ENGINE is reserved for this job */ - impl = ENGINE_get_cipher_engine((*pcipher)->nid); - if(impl) - { - /* There's an ENGINE for this job ... (apparently) */ - const EVP_CIPHER *c = ENGINE_get_cipher(impl, (*pcipher)->nid); - if(!c) - { - /* One positive side-effect of US's export - * control history, is that we should at least - * be able to avoid using US mispellings of - * "initialisation"? */ - EVPerr(EVP_F_DO_EVP_ENC_ENGINE, EVP_R_INITIALIZATION_ERROR); - return 0; - } - /* We'll use the ENGINE's private cipher definition */ - *pcipher = c; - /* Store the ENGINE functional reference so we know - * 'cipher' came from an ENGINE and we need to release - * it when done. */ - ctx->engine = impl; - } - else - ctx->engine = NULL; - return 1; - } - -#endif - -#endif - -int EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher, ENGINE *impl, - const unsigned char *key, const unsigned char *iv, int enc) - { - if (enc == -1) - enc = ctx->encrypt; - else - { - if (enc) - enc = 1; - ctx->encrypt = enc; - } -#ifdef OPENSSL_FIPS - if(FIPS_selftest_failed()) - { - FIPSerr(FIPS_F_EVP_CIPHERINIT_EX,FIPS_R_FIPS_SELFTEST_FAILED); - ctx->cipher = &bad_cipher; - return 0; - } -#endif -#ifndef OPENSSL_NO_ENGINE - /* Whether it's nice or not, "Inits" can be used on "Final"'d contexts - * so this context may already have an ENGINE! Try to avoid releasing - * the previous handle, re-querying for an ENGINE, and having a - * reinitialisation, when it may all be unecessary. */ - if (ctx->engine && ctx->cipher && (!cipher || - (cipher && (cipher->nid == ctx->cipher->nid)))) - goto skip_to_init; -#endif - if (cipher) - { - /* Ensure a context left lying around from last time is cleared - * (the previous check attempted to avoid this if the same - * ENGINE and EVP_CIPHER could be used). */ - EVP_CIPHER_CTX_cleanup(ctx); - - /* Restore encrypt field: it is zeroed by cleanup */ - ctx->encrypt = enc; -#ifndef OPENSSL_NO_ENGINE - if (!do_evp_enc_engine(ctx, &cipher, impl)) - return 0; -#endif - - ctx->cipher=cipher; - if (ctx->cipher->ctx_size) - { - ctx->cipher_data=OPENSSL_malloc(ctx->cipher->ctx_size); - if (!ctx->cipher_data) - { - EVPerr(EVP_F_EVP_CIPHERINIT_EX, ERR_R_MALLOC_FAILURE); - return 0; - } - } - else - { - ctx->cipher_data = NULL; - } - ctx->key_len = cipher->key_len; - ctx->flags = 0; - if(ctx->cipher->flags & EVP_CIPH_CTRL_INIT) - { - if(!EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_INIT, 0, NULL)) - { - EVPerr(EVP_F_EVP_CIPHERINIT_EX, EVP_R_INITIALIZATION_ERROR); - return 0; - } - } - } - else if(!ctx->cipher) - { - EVPerr(EVP_F_EVP_CIPHERINIT_EX, EVP_R_NO_CIPHER_SET); - return 0; - } -#ifndef OPENSSL_NO_ENGINE -skip_to_init: -#endif - /* we assume block size is a power of 2 in *cryptUpdate */ - OPENSSL_assert(ctx->cipher->block_size == 1 - || ctx->cipher->block_size == 8 - || ctx->cipher->block_size == 16); - - if(!(EVP_CIPHER_CTX_flags(ctx) & EVP_CIPH_CUSTOM_IV)) { - switch(EVP_CIPHER_CTX_mode(ctx)) { - - case EVP_CIPH_STREAM_CIPHER: - case EVP_CIPH_ECB_MODE: - break; - - case EVP_CIPH_CFB_MODE: - case EVP_CIPH_OFB_MODE: - - ctx->num = 0; - - case EVP_CIPH_CBC_MODE: - - OPENSSL_assert(EVP_CIPHER_CTX_iv_length(ctx) <= - (int)sizeof(ctx->iv)); - if(iv) memcpy(ctx->oiv, iv, EVP_CIPHER_CTX_iv_length(ctx)); - memcpy(ctx->iv, ctx->oiv, EVP_CIPHER_CTX_iv_length(ctx)); - break; - - default: - return 0; - break; - } - } - -#ifdef OPENSSL_FIPS - /* After 'key' is set no further parameters changes are permissible. - * So only check for non FIPS enabling at this point. - */ - if (key && FIPS_mode()) - { - if (!(ctx->cipher->flags & EVP_CIPH_FLAG_FIPS) - & !(ctx->flags & EVP_CIPH_FLAG_NON_FIPS_ALLOW)) - { - EVPerr(EVP_F_EVP_CIPHERINIT_EX, EVP_R_DISABLED_FOR_FIPS); -#if 0 - ERR_add_error_data(2, "cipher=", - EVP_CIPHER_name(ctx->cipher)); -#endif - ctx->cipher = &bad_cipher; - return 0; - } - } -#endif - - if(key || (ctx->cipher->flags & EVP_CIPH_ALWAYS_CALL_INIT)) { - if(!ctx->cipher->init(ctx,key,iv,enc)) return 0; - } - ctx->buf_len=0; - ctx->final_used=0; - ctx->block_mask=ctx->cipher->block_size-1; - return 1; - } - -int EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *c) - { - if (c->cipher != NULL) - { - if(c->cipher->cleanup && !c->cipher->cleanup(c)) - return 0; - /* Cleanse cipher context data */ - if (c->cipher_data) - OPENSSL_cleanse(c->cipher_data, c->cipher->ctx_size); - } - if (c->cipher_data) - OPENSSL_free(c->cipher_data); -#ifndef OPENSSL_NO_ENGINE - if (c->engine) - /* The EVP_CIPHER we used belongs to an ENGINE, release the - * functional reference we held for this reason. */ - do_engine_finish(c->engine); -#endif - memset(c,0,sizeof(EVP_CIPHER_CTX)); - return 1; - } - -int EVP_Cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) - { -#ifdef OPENSSL_FIPS - FIPS_selftest_check(); -#endif - return ctx->cipher->do_cipher(ctx,out,in,inl); - } - -int EVP_CIPHER_CTX_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr) -{ - int ret; - if(!ctx->cipher) { - EVPerr(EVP_F_EVP_CIPHER_CTX_CTRL, EVP_R_NO_CIPHER_SET); - return 0; - } - - if(!ctx->cipher->ctrl) { - EVPerr(EVP_F_EVP_CIPHER_CTX_CTRL, EVP_R_CTRL_NOT_IMPLEMENTED); - return 0; - } - - ret = ctx->cipher->ctrl(ctx, type, arg, ptr); - if(ret == -1) { - EVPerr(EVP_F_EVP_CIPHER_CTX_CTRL, EVP_R_CTRL_OPERATION_NOT_IMPLEMENTED); - return 0; - } - return ret; -} - -unsigned long EVP_CIPHER_CTX_flags(const EVP_CIPHER_CTX *ctx) - { - return ctx->cipher->flags; - } - -int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx) - { - return ctx->cipher->iv_len; - } - -int EVP_CIPHER_nid(const EVP_CIPHER *cipher) - { - return cipher->nid; - } |