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author | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
commit | 3562e78743202e43aec8727005182a2558117eca (patch) | |
tree | 8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /openssl/crypto/evp/evp_enc.c | |
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Checked in the following released items:
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ttf-bitstream-vera-1.10.tar.gz
font-alias-1.0.1.tar.gz
font-sun-misc-1.0.0.tar.gz
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font-sony-misc-1.0.0.tar.gz
font-schumacher-misc-1.0.0.tar.gz
font-mutt-misc-1.0.0.tar.gz
font-misc-misc-1.0.0.tar.gz
font-misc-meltho-1.0.0.tar.gz
font-micro-misc-1.0.0.tar.gz
font-jis-misc-1.0.0.tar.gz
font-isas-misc-1.0.0.tar.gz
font-dec-misc-1.0.0.tar.gz
font-daewoo-misc-1.0.0.tar.gz
font-cursor-misc-1.0.0.tar.gz
font-arabic-misc-1.0.0.tar.gz
font-winitzki-cyrillic-1.0.0.tar.gz
font-misc-cyrillic-1.0.0.tar.gz
font-cronyx-cyrillic-1.0.0.tar.gz
font-screen-cyrillic-1.0.1.tar.gz
font-xfree86-type1-1.0.1.tar.gz
font-adobe-utopia-type1-1.0.1.tar.gz
font-ibm-type1-1.0.0.tar.gz
font-bitstream-type1-1.0.0.tar.gz
font-bitstream-speedo-1.0.0.tar.gz
font-bh-ttf-1.0.0.tar.gz
font-bh-type1-1.0.0.tar.gz
font-bitstream-100dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-100dpi-1.0.0.tar.gz
font-bh-100dpi-1.0.0.tar.gz
font-adobe-utopia-100dpi-1.0.1.tar.gz
font-adobe-100dpi-1.0.0.tar.gz
font-util-1.0.1.tar.gz
font-bitstream-75dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz
font-adobe-utopia-75dpi-1.0.1.tar.gz
font-bh-75dpi-1.0.0.tar.gz
bdftopcf-1.0.1.tar.gz
font-adobe-75dpi-1.0.0.tar.gz
mkfontscale-1.0.6.tar.gz
openssl-0.9.8k.tar.gz
bigreqsproto-1.0.2.tar.gz
xtrans-1.2.2.tar.gz
resourceproto-1.0.2.tar.gz
inputproto-1.4.4.tar.gz
compositeproto-0.4.tar.gz
damageproto-1.1.0.tar.gz
zlib-1.2.3.tar.gz
xkbcomp-1.0.5.tar.gz
freetype-2.3.9.tar.gz
pthreads-w32-2-8-0-release.tar.gz
pixman-0.12.0.tar.gz
kbproto-1.0.3.tar.gz
evieext-1.0.2.tar.gz
fixesproto-4.0.tar.gz
recordproto-1.13.2.tar.gz
randrproto-1.2.2.tar.gz
scrnsaverproto-1.1.0.tar.gz
renderproto-0.9.3.tar.gz
xcmiscproto-1.1.2.tar.gz
fontsproto-2.0.2.tar.gz
xextproto-7.0.3.tar.gz
xproto-7.0.14.tar.gz
libXdmcp-1.0.2.tar.gz
libxkbfile-1.0.5.tar.gz
libfontenc-1.0.4.tar.gz
libXfont-1.3.4.tar.gz
libX11-1.1.5.tar.gz
libXau-1.0.4.tar.gz
libxcb-1.1.tar.gz
xorg-server-1.5.3.tar.gz
Diffstat (limited to 'openssl/crypto/evp/evp_enc.c')
-rw-r--r-- | openssl/crypto/evp/evp_enc.c | 440 |
1 files changed, 440 insertions, 0 deletions
diff --git a/openssl/crypto/evp/evp_enc.c b/openssl/crypto/evp/evp_enc.c new file mode 100644 index 000000000..30e0ca4d9 --- /dev/null +++ b/openssl/crypto/evp/evp_enc.c @@ -0,0 +1,440 @@ +/* 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> +#include <openssl/err.h> +#include <openssl/rand.h> +#ifndef OPENSSL_NO_ENGINE +#include <openssl/engine.h> +#endif +#include "evp_locl.h" + +#ifdef OPENSSL_FIPS + #define M_do_cipher(ctx, out, in, inl) \ + EVP_Cipher(ctx,out,in,inl) +#else + #define M_do_cipher(ctx, out, in, inl) \ + ctx->cipher->do_cipher(ctx,out,in,inl) +#endif + +const char EVP_version[]="EVP" OPENSSL_VERSION_PTEXT; + +EVP_CIPHER_CTX *EVP_CIPHER_CTX_new(void) + { + EVP_CIPHER_CTX *ctx=OPENSSL_malloc(sizeof *ctx); + if (ctx) + EVP_CIPHER_CTX_init(ctx); + return ctx; + } + +int EVP_CipherInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher, + const unsigned char *key, const unsigned char *iv, int enc) + { + if (cipher) + EVP_CIPHER_CTX_init(ctx); + return EVP_CipherInit_ex(ctx,cipher,NULL,key,iv,enc); + } + +int EVP_CipherUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl, + const unsigned char *in, int inl) + { + if (ctx->encrypt) + return EVP_EncryptUpdate(ctx,out,outl,in,inl); + else return EVP_DecryptUpdate(ctx,out,outl,in,inl); + } + +int EVP_CipherFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl) + { + if (ctx->encrypt) + return EVP_EncryptFinal_ex(ctx,out,outl); + else return EVP_DecryptFinal_ex(ctx,out,outl); + } + +int EVP_CipherFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl) + { + if (ctx->encrypt) + return EVP_EncryptFinal(ctx,out,outl); + else return EVP_DecryptFinal(ctx,out,outl); + } + +int EVP_EncryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher, + const unsigned char *key, const unsigned char *iv) + { + return EVP_CipherInit(ctx, cipher, key, iv, 1); + } + +int EVP_EncryptInit_ex(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *cipher, ENGINE *impl, + const unsigned char *key, const unsigned char *iv) + { + return EVP_CipherInit_ex(ctx, cipher, impl, key, iv, 1); + } + +int EVP_DecryptInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher, + const unsigned char *key, const unsigned char *iv) + { + return EVP_CipherInit(ctx, cipher, key, iv, 0); + } + +int EVP_DecryptInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher, ENGINE *impl, + const unsigned char *key, const unsigned char *iv) + { + return EVP_CipherInit_ex(ctx, cipher, impl, key, iv, 0); + } + +int EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl, + const unsigned char *in, int inl) + { + int i,j,bl; + + if (inl <= 0) + { + *outl = 0; + return inl == 0; + } + + if(ctx->buf_len == 0 && (inl&(ctx->block_mask)) == 0) + { + if(M_do_cipher(ctx,out,in,inl)) + { + *outl=inl; + return 1; + } + else + { + *outl=0; + return 0; + } + } + i=ctx->buf_len; + bl=ctx->cipher->block_size; + OPENSSL_assert(bl <= (int)sizeof(ctx->buf)); + if (i != 0) + { + if (i+inl < bl) + { + memcpy(&(ctx->buf[i]),in,inl); + ctx->buf_len+=inl; + *outl=0; + return 1; + } + else + { + j=bl-i; + memcpy(&(ctx->buf[i]),in,j); + if(!M_do_cipher(ctx,out,ctx->buf,bl)) return 0; + inl-=j; + in+=j; + out+=bl; + *outl=bl; + } + } + else + *outl = 0; + i=inl&(bl-1); + inl-=i; + if (inl > 0) + { + if(!M_do_cipher(ctx,out,in,inl)) return 0; + *outl+=inl; + } + + if (i != 0) + memcpy(ctx->buf,&(in[inl]),i); + ctx->buf_len=i; + return 1; + } + +int EVP_EncryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl) + { + int ret; + ret = EVP_EncryptFinal_ex(ctx, out, outl); + return ret; + } + +int EVP_EncryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl) + { + int n,ret; + unsigned int i, b, bl; + + b=ctx->cipher->block_size; + OPENSSL_assert(b <= sizeof ctx->buf); + if (b == 1) + { + *outl=0; + return 1; + } + bl=ctx->buf_len; + if (ctx->flags & EVP_CIPH_NO_PADDING) + { + if(bl) + { + EVPerr(EVP_F_EVP_ENCRYPTFINAL_EX,EVP_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH); + return 0; + } + *outl = 0; + return 1; + } + + n=b-bl; + for (i=bl; i<b; i++) + ctx->buf[i]=n; + ret=M_do_cipher(ctx,out,ctx->buf,b); + + + if(ret) + *outl=b; + + return ret; + } + +int EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl, + const unsigned char *in, int inl) + { + int fix_len; + unsigned int b; + + if (inl <= 0) + { + *outl = 0; + return inl == 0; + } + + if (ctx->flags & EVP_CIPH_NO_PADDING) + return EVP_EncryptUpdate(ctx, out, outl, in, inl); + + b=ctx->cipher->block_size; + OPENSSL_assert(b <= sizeof ctx->final); + + if(ctx->final_used) + { + memcpy(out,ctx->final,b); + out+=b; + fix_len = 1; + } + else + fix_len = 0; + + + if(!EVP_EncryptUpdate(ctx,out,outl,in,inl)) + return 0; + + /* if we have 'decrypted' a multiple of block size, make sure + * we have a copy of this last block */ + if (b > 1 && !ctx->buf_len) + { + *outl-=b; + ctx->final_used=1; + memcpy(ctx->final,&out[*outl],b); + } + else + ctx->final_used = 0; + + if (fix_len) + *outl += b; + + return 1; + } + +int EVP_DecryptFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl) + { + int ret; + ret = EVP_DecryptFinal_ex(ctx, out, outl); + return ret; + } + +int EVP_DecryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl) + { + int i,n; + unsigned int b; + + *outl=0; + b=ctx->cipher->block_size; + if (ctx->flags & EVP_CIPH_NO_PADDING) + { + if(ctx->buf_len) + { + EVPerr(EVP_F_EVP_DECRYPTFINAL_EX,EVP_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH); + return 0; + } + *outl = 0; + return 1; + } + if (b > 1) + { + if (ctx->buf_len || !ctx->final_used) + { + EVPerr(EVP_F_EVP_DECRYPTFINAL_EX,EVP_R_WRONG_FINAL_BLOCK_LENGTH); + return(0); + } + OPENSSL_assert(b <= sizeof ctx->final); + n=ctx->final[b-1]; + if (n == 0 || n > (int)b) + { + EVPerr(EVP_F_EVP_DECRYPTFINAL_EX,EVP_R_BAD_DECRYPT); + return(0); + } + for (i=0; i<n; i++) + { + if (ctx->final[--b] != n) + { + EVPerr(EVP_F_EVP_DECRYPTFINAL_EX,EVP_R_BAD_DECRYPT); + return(0); + } + } + n=ctx->cipher->block_size-n; + for (i=0; i<n; i++) + out[i]=ctx->final[i]; + *outl=n; + } + else + *outl=0; + return(1); + } + +void EVP_CIPHER_CTX_free(EVP_CIPHER_CTX *ctx) + { + if (ctx) + { + EVP_CIPHER_CTX_cleanup(ctx); + OPENSSL_free(ctx); + } + } + +int EVP_CIPHER_CTX_set_key_length(EVP_CIPHER_CTX *c, int keylen) + { + if(c->cipher->flags & EVP_CIPH_CUSTOM_KEY_LENGTH) + return EVP_CIPHER_CTX_ctrl(c, EVP_CTRL_SET_KEY_LENGTH, keylen, NULL); + if(c->key_len == keylen) return 1; + if((keylen > 0) && (c->cipher->flags & EVP_CIPH_VARIABLE_LENGTH)) + { + c->key_len = keylen; + return 1; + } + EVPerr(EVP_F_EVP_CIPHER_CTX_SET_KEY_LENGTH,EVP_R_INVALID_KEY_LENGTH); + return 0; + } + +int EVP_CIPHER_CTX_set_padding(EVP_CIPHER_CTX *ctx, int pad) + { + if (pad) ctx->flags &= ~EVP_CIPH_NO_PADDING; + else ctx->flags |= EVP_CIPH_NO_PADDING; + return 1; + } + +int EVP_CIPHER_CTX_rand_key(EVP_CIPHER_CTX *ctx, unsigned char *key) + { + if (ctx->cipher->flags & EVP_CIPH_RAND_KEY) + return EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_RAND_KEY, 0, key); + if (RAND_bytes(key, ctx->key_len) <= 0) + return 0; + return 1; + } + +#ifndef OPENSSL_NO_ENGINE + +#ifdef OPENSSL_FIPS + +static int do_evp_enc_engine_full(EVP_CIPHER_CTX *ctx, const EVP_CIPHER **pcipher, ENGINE *impl) + { + if(impl) + { + if (!ENGINE_init(impl)) + { + EVPerr(EVP_F_DO_EVP_ENC_ENGINE_FULL, 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_FULL, 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; + } + +void int_EVP_CIPHER_init_engine_callbacks(void) + { + int_EVP_CIPHER_set_engine_callbacks( + ENGINE_finish, do_evp_enc_engine_full); + } + +#endif + +#endif |