diff options
Diffstat (limited to 'crypto/openssl/crypto/evp/evp_enc.c')
| -rw-r--r-- | crypto/openssl/crypto/evp/evp_enc.c | 270 |
1 files changed, 0 insertions, 270 deletions
diff --git a/crypto/openssl/crypto/evp/evp_enc.c b/crypto/openssl/crypto/evp/evp_enc.c deleted file mode 100644 index 5299a65b6af39..0000000000000 --- a/crypto/openssl/crypto/evp/evp_enc.c +++ /dev/null @@ -1,270 +0,0 @@ -/* crypto/evp/evp_enc.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> - -const char *EVP_version="EVP" OPENSSL_VERSION_PTEXT; - -void EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *ctx) - { - memset(ctx,0,sizeof(EVP_CIPHER_CTX)); - /* ctx->cipher=NULL; */ - } - -void EVP_CipherInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *data, - unsigned char *key, unsigned char *iv, int enc) - { - if (enc) - EVP_EncryptInit(ctx,data,key,iv); - else - EVP_DecryptInit(ctx,data,key,iv); - } - -void EVP_CipherUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl, - unsigned char *in, int inl) - { - if (ctx->encrypt) - EVP_EncryptUpdate(ctx,out,outl,in,inl); - else EVP_DecryptUpdate(ctx,out,outl,in,inl); - } - -int EVP_CipherFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl) - { - if (ctx->encrypt) - { - EVP_EncryptFinal(ctx,out,outl); - return(1); - } - else return(EVP_DecryptFinal(ctx,out,outl)); - } - -void EVP_EncryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher, - unsigned char *key, unsigned char *iv) - { - if (cipher != NULL) - ctx->cipher=cipher; - ctx->cipher->init(ctx,key,iv,1); - ctx->encrypt=1; - ctx->buf_len=0; - } - -void EVP_DecryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher, - unsigned char *key, unsigned char *iv) - { - if (cipher != NULL) - ctx->cipher=cipher; - ctx->cipher->init(ctx,key,iv,0); - ctx->encrypt=0; - ctx->buf_len=0; - } - - -void EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl, - unsigned char *in, int inl) - { - int i,j,bl; - - i=ctx->buf_len; - bl=ctx->cipher->block_size; - *outl=0; - if ((inl == 0) && (i != bl)) return; - if (i != 0) - { - if (i+inl < bl) - { - memcpy(&(ctx->buf[i]),in,inl); - ctx->buf_len+=inl; - return; - } - else - { - j=bl-i; - if (j != 0) memcpy(&(ctx->buf[i]),in,j); - ctx->cipher->do_cipher(ctx,out,ctx->buf,bl); - inl-=j; - in+=j; - out+=bl; - *outl+=bl; - } - } - i=inl%bl; /* how much is left */ - inl-=i; - if (inl > 0) - { - ctx->cipher->do_cipher(ctx,out,in,inl); - *outl+=inl; - } - - if (i != 0) - memcpy(ctx->buf,&(in[inl]),i); - ctx->buf_len=i; - } - -void EVP_EncryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl) - { - int i,n,b,bl; - - b=ctx->cipher->block_size; - if (b == 1) - { - *outl=0; - return; - } - bl=ctx->buf_len; - n=b-bl; - for (i=bl; i<b; i++) - ctx->buf[i]=n; - ctx->cipher->do_cipher(ctx,out,ctx->buf,b); - *outl=b; - } - -void EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl, - unsigned char *in, int inl) - { - int b,bl,n; - int keep_last=0; - - *outl=0; - if (inl == 0) return; - - b=ctx->cipher->block_size; - if (b > 1) - { - /* Is the input a multiple of the block size? */ - bl=ctx->buf_len; - n=inl+bl; - if (n%b == 0) - { - if (inl < b) /* must be 'just one' buff */ - { - memcpy(&(ctx->buf[bl]),in,inl); - ctx->buf_len=b; - *outl=0; - return; - } - keep_last=1; - inl-=b; /* don't do the last block */ - } - } - EVP_EncryptUpdate(ctx,out,outl,in,inl); - - /* if we have 'decrypted' a multiple of block size, make sure - * we have a copy of this last block */ - if (keep_last) - { - memcpy(&(ctx->buf[0]),&(in[inl]),b); -#ifdef DEBUG - if (ctx->buf_len != 0) - { - abort(); - } -#endif - ctx->buf_len=b; - } - } - -int EVP_DecryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl) - { - int i,b; - int n; - - *outl=0; - b=ctx->cipher->block_size; - if (b > 1) - { - if (ctx->buf_len != b) - { - EVPerr(EVP_F_EVP_DECRYPTFINAL,EVP_R_WRONG_FINAL_BLOCK_LENGTH); - return(0); - } - EVP_EncryptUpdate(ctx,ctx->buf,&n,ctx->buf,0); - if (n != b) - return(0); - n=ctx->buf[b-1]; - if (n > b) - { - EVPerr(EVP_F_EVP_DECRYPTFINAL,EVP_R_BAD_DECRYPT); - return(0); - } - for (i=0; i<n; i++) - { - if (ctx->buf[--b] != n) - { - EVPerr(EVP_F_EVP_DECRYPTFINAL,EVP_R_BAD_DECRYPT); - return(0); - } - } - n=ctx->cipher->block_size-n; - for (i=0; i<n; i++) - out[i]=ctx->buf[i]; - *outl=n; - } - else - *outl=0; - return(1); - } - -void EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *c) - { - if ((c->cipher != NULL) && (c->cipher->cleanup != NULL)) - c->cipher->cleanup(c); - memset(c,0,sizeof(EVP_CIPHER_CTX)); - } - |