diff options
Diffstat (limited to 'openssl/crypto/evp/e_xcbc_d.c')
| -rw-r--r-- | openssl/crypto/evp/e_xcbc_d.c | 122 |
1 files changed, 57 insertions, 65 deletions
diff --git a/openssl/crypto/evp/e_xcbc_d.c b/openssl/crypto/evp/e_xcbc_d.c index 250e88c8c..3430df9e8 100644 --- a/openssl/crypto/evp/e_xcbc_d.c +++ b/openssl/crypto/evp/e_xcbc_d.c @@ -5,21 +5,21 @@ * 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: @@ -34,10 +34,10 @@ * 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 + * 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 @@ -49,7 +49,7 @@ * 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 @@ -61,78 +61,70 @@ #ifndef OPENSSL_NO_DES -#include <openssl/evp.h> -#include <openssl/objects.h> -#include "evp_locl.h" -#include <openssl/des.h> +# include <openssl/evp.h> +# include <openssl/objects.h> +# include "evp_locl.h" +# include <openssl/des.h> static int desx_cbc_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv,int enc); + const unsigned char *iv, int enc); static int desx_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t inl); - + const unsigned char *in, size_t inl); -typedef struct - { - DES_key_schedule ks;/* key schedule */ +typedef struct { + DES_key_schedule ks; /* key schedule */ DES_cblock inw; DES_cblock outw; - } DESX_CBC_KEY; +} DESX_CBC_KEY; -#define data(ctx) ((DESX_CBC_KEY *)(ctx)->cipher_data) +# define data(ctx) ((DESX_CBC_KEY *)(ctx)->cipher_data) -static const EVP_CIPHER d_xcbc_cipher= - { - NID_desx_cbc, - 8,24,8, - EVP_CIPH_CBC_MODE, - desx_cbc_init_key, - desx_cbc_cipher, - NULL, - sizeof(DESX_CBC_KEY), - EVP_CIPHER_set_asn1_iv, - EVP_CIPHER_get_asn1_iv, - NULL, - NULL - }; +static const EVP_CIPHER d_xcbc_cipher = { + NID_desx_cbc, + 8, 24, 8, + EVP_CIPH_CBC_MODE, + desx_cbc_init_key, + desx_cbc_cipher, + NULL, + sizeof(DESX_CBC_KEY), + EVP_CIPHER_set_asn1_iv, + EVP_CIPHER_get_asn1_iv, + NULL, + NULL +}; const EVP_CIPHER *EVP_desx_cbc(void) - { - return(&d_xcbc_cipher); - } - +{ + return (&d_xcbc_cipher); +} + static int desx_cbc_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv, int enc) - { - DES_cblock *deskey = (DES_cblock *)key; + const unsigned char *iv, int enc) +{ + DES_cblock *deskey = (DES_cblock *)key; - DES_set_key_unchecked(deskey,&data(ctx)->ks); - memcpy(&data(ctx)->inw[0],&key[8],8); - memcpy(&data(ctx)->outw[0],&key[16],8); + DES_set_key_unchecked(deskey, &data(ctx)->ks); + memcpy(&data(ctx)->inw[0], &key[8], 8); + memcpy(&data(ctx)->outw[0], &key[16], 8); - return 1; - } + return 1; +} static int desx_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t inl) - { - while (inl>=EVP_MAXCHUNK) - { - DES_xcbc_encrypt(in,out,(long)EVP_MAXCHUNK,&data(ctx)->ks, - (DES_cblock *)&(ctx->iv[0]), - &data(ctx)->inw, - &data(ctx)->outw, - ctx->encrypt); - inl-=EVP_MAXCHUNK; - in +=EVP_MAXCHUNK; - out+=EVP_MAXCHUNK; - } - if (inl) - DES_xcbc_encrypt(in,out,(long)inl,&data(ctx)->ks, - (DES_cblock *)&(ctx->iv[0]), - &data(ctx)->inw, - &data(ctx)->outw, - ctx->encrypt); - return 1; - } + const unsigned char *in, size_t inl) +{ + while (inl >= EVP_MAXCHUNK) { + DES_xcbc_encrypt(in, out, (long)EVP_MAXCHUNK, &data(ctx)->ks, + (DES_cblock *)&(ctx->iv[0]), + &data(ctx)->inw, &data(ctx)->outw, ctx->encrypt); + inl -= EVP_MAXCHUNK; + in += EVP_MAXCHUNK; + out += EVP_MAXCHUNK; + } + if (inl) + DES_xcbc_encrypt(in, out, (long)inl, &data(ctx)->ks, + (DES_cblock *)&(ctx->iv[0]), + &data(ctx)->inw, &data(ctx)->outw, ctx->encrypt); + return 1; +} #endif |