diff options
author | Matt Caswell <matt@openssl.org> | 2015-01-22 03:40:55 +0000 |
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committer | Matt Caswell <matt@openssl.org> | 2015-01-22 09:20:09 +0000 |
commit | 0f113f3ee4d629ef9a4a30911b22b224772085e5 (patch) | |
tree | e014603da5aed1d0751f587a66d6e270b6bda3de /crypto/evp/e_des.c | |
parent | 22b52164aaed31d6e93dbd2d397ace041360e6aa (diff) |
Run util/openssl-format-source -v -c .
Reviewed-by: Tim Hudson <tjh@openssl.org>
Diffstat (limited to 'crypto/evp/e_des.c')
-rw-r--r-- | crypto/evp/e_des.c | 326 |
1 files changed, 161 insertions, 165 deletions
diff --git a/crypto/evp/e_des.c b/crypto/evp/e_des.c index bf4366590f..aae13a6756 100644 --- a/crypto/evp/e_des.c +++ b/crypto/evp/e_des.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 @@ -59,214 +59,210 @@ #include <stdio.h> #include "cryptlib.h" #ifndef OPENSSL_NO_DES -#include <openssl/evp.h> -#include <openssl/objects.h> -#include "evp_locl.h" -#include <openssl/des.h> -#include <openssl/rand.h> +# include <openssl/evp.h> +# include <openssl/objects.h> +# include "evp_locl.h" +# include <openssl/des.h> +# include <openssl/rand.h> -typedef struct - { - union { double align; DES_key_schedule ks; } ks; - union { - void (*cbc)(const void *,void *,size_t,const void *,void *); - } stream; - } EVP_DES_KEY; +typedef struct { + union { + double align; + DES_key_schedule ks; + } ks; + union { + void (*cbc) (const void *, void *, size_t, const void *, void *); + } stream; +} EVP_DES_KEY; -#if defined(AES_ASM) && (defined(__sparc) || defined(__sparc__)) +# if defined(AES_ASM) && (defined(__sparc) || defined(__sparc__)) /* ---------^^^ this is not a typo, just a way to detect that * assembler support was in general requested... */ -#include "sparc_arch.h" +# include "sparc_arch.h" extern unsigned int OPENSSL_sparcv9cap_P[]; -#define SPARC_DES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_DES) +# define SPARC_DES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_DES) -void des_t4_key_expand(const void *key, DES_key_schedule *ks); -void des_t4_cbc_encrypt(const void *inp,void *out,size_t len, - DES_key_schedule *ks,unsigned char iv[8]); -void des_t4_cbc_decrypt(const void *inp,void *out,size_t len, - DES_key_schedule *ks,unsigned char iv[8]); -#endif +void des_t4_key_expand(const void *key, DES_key_schedule *ks); +void des_t4_cbc_encrypt(const void *inp, void *out, size_t len, + DES_key_schedule *ks, unsigned char iv[8]); +void des_t4_cbc_decrypt(const void *inp, void *out, size_t len, + DES_key_schedule *ks, unsigned char iv[8]); +# endif static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv, int enc); + const unsigned char *iv, int enc); static int des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr); -/* Because of various casts and different names can't use IMPLEMENT_BLOCK_CIPHER */ +/* + * Because of various casts and different names can't use + * IMPLEMENT_BLOCK_CIPHER + */ static int des_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t inl) + const unsigned char *in, size_t inl) { - BLOCK_CIPHER_ecb_loop() - DES_ecb_encrypt((DES_cblock *)(in + i), (DES_cblock *)(out + i), ctx->cipher_data, ctx->encrypt); - return 1; + BLOCK_CIPHER_ecb_loop() + DES_ecb_encrypt((DES_cblock *)(in + i), (DES_cblock *)(out + i), + ctx->cipher_data, ctx->encrypt); + return 1; } static int des_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t inl) + const unsigned char *in, size_t inl) { - while(inl>=EVP_MAXCHUNK) - { - DES_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data, - (DES_cblock *)ctx->iv, &ctx->num); - inl-=EVP_MAXCHUNK; - in +=EVP_MAXCHUNK; - out+=EVP_MAXCHUNK; - } - if (inl) - DES_ofb64_encrypt(in, out, (long)inl, ctx->cipher_data, - (DES_cblock *)ctx->iv, &ctx->num); - return 1; + while (inl >= EVP_MAXCHUNK) { + DES_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data, + (DES_cblock *)ctx->iv, &ctx->num); + inl -= EVP_MAXCHUNK; + in += EVP_MAXCHUNK; + out += EVP_MAXCHUNK; + } + if (inl) + DES_ofb64_encrypt(in, out, (long)inl, ctx->cipher_data, + (DES_cblock *)ctx->iv, &ctx->num); + return 1; } static int des_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t inl) + const unsigned char *in, size_t inl) { - EVP_DES_KEY *dat = (EVP_DES_KEY *)ctx->cipher_data; + EVP_DES_KEY *dat = (EVP_DES_KEY *) ctx->cipher_data; - if (dat->stream.cbc) - { - (*dat->stream.cbc)(in,out,inl,&dat->ks.ks,ctx->iv); - return 1; - } - while(inl>=EVP_MAXCHUNK) - { - DES_ncbc_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data, - (DES_cblock *)ctx->iv, ctx->encrypt); - inl-=EVP_MAXCHUNK; - in +=EVP_MAXCHUNK; - out+=EVP_MAXCHUNK; - } - if (inl) - DES_ncbc_encrypt(in, out, (long)inl, ctx->cipher_data, - (DES_cblock *)ctx->iv, ctx->encrypt); - return 1; + if (dat->stream.cbc) { + (*dat->stream.cbc) (in, out, inl, &dat->ks.ks, ctx->iv); + return 1; + } + while (inl >= EVP_MAXCHUNK) { + DES_ncbc_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data, + (DES_cblock *)ctx->iv, ctx->encrypt); + inl -= EVP_MAXCHUNK; + in += EVP_MAXCHUNK; + out += EVP_MAXCHUNK; + } + if (inl) + DES_ncbc_encrypt(in, out, (long)inl, ctx->cipher_data, + (DES_cblock *)ctx->iv, ctx->encrypt); + return 1; } static int des_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t inl) + const unsigned char *in, size_t inl) { - while(inl>=EVP_MAXCHUNK) - { - DES_cfb64_encrypt(in,out, (long)EVP_MAXCHUNK, ctx->cipher_data, - (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt); - inl-=EVP_MAXCHUNK; - in +=EVP_MAXCHUNK; - out+=EVP_MAXCHUNK; - } - if (inl) - DES_cfb64_encrypt(in, out, (long)inl, ctx->cipher_data, - (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt); - return 1; + while (inl >= EVP_MAXCHUNK) { + DES_cfb64_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data, + (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt); + inl -= EVP_MAXCHUNK; + in += EVP_MAXCHUNK; + out += EVP_MAXCHUNK; + } + if (inl) + DES_cfb64_encrypt(in, out, (long)inl, ctx->cipher_data, + (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt); + return 1; } -/* Although we have a CFB-r implementation for DES, it doesn't pack the right - way, so wrap it here */ +/* + * Although we have a CFB-r implementation for DES, it doesn't pack the right + * way, so wrap it here + */ static int des_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t inl) - { - size_t n,chunk=EVP_MAXCHUNK/8; - unsigned char c[1],d[1]; + const unsigned char *in, size_t inl) +{ + size_t n, chunk = EVP_MAXCHUNK / 8; + unsigned char c[1], d[1]; - if (inl<chunk) chunk=inl; + if (inl < chunk) + chunk = inl; - while (inl && inl>=chunk) - { - for(n=0 ; n < chunk*8; ++n) - { - c[0]=(in[n/8]&(1 << (7-n%8))) ? 0x80 : 0; - DES_cfb_encrypt(c,d,1,1,ctx->cipher_data,(DES_cblock *)ctx->iv, - ctx->encrypt); - out[n/8]=(out[n/8]&~(0x80 >> (unsigned int)(n%8))) | - ((d[0]&0x80) >> (unsigned int)(n%8)); - } - inl-=chunk; - in +=chunk; - out+=chunk; - if (inl<chunk) chunk=inl; - } + while (inl && inl >= chunk) { + for (n = 0; n < chunk * 8; ++n) { + c[0] = (in[n / 8] & (1 << (7 - n % 8))) ? 0x80 : 0; + DES_cfb_encrypt(c, d, 1, 1, ctx->cipher_data, + (DES_cblock *)ctx->iv, ctx->encrypt); + out[n / 8] = + (out[n / 8] & ~(0x80 >> (unsigned int)(n % 8))) | + ((d[0] & 0x80) >> (unsigned int)(n % 8)); + } + inl -= chunk; + in += chunk; + out += chunk; + if (inl < chunk) + chunk = inl; + } return 1; - } +} static int des_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t inl) - { - while (inl>=EVP_MAXCHUNK) - { - DES_cfb_encrypt(in,out,8,(long)EVP_MAXCHUNK,ctx->cipher_data, - (DES_cblock *)ctx->iv,ctx->encrypt); - inl-=EVP_MAXCHUNK; - in +=EVP_MAXCHUNK; - out+=EVP_MAXCHUNK; - } + const unsigned char *in, size_t inl) +{ + while (inl >= EVP_MAXCHUNK) { + DES_cfb_encrypt(in, out, 8, (long)EVP_MAXCHUNK, ctx->cipher_data, + (DES_cblock *)ctx->iv, ctx->encrypt); + inl -= EVP_MAXCHUNK; + in += EVP_MAXCHUNK; + out += EVP_MAXCHUNK; + } if (inl) - DES_cfb_encrypt(in,out,8,(long)inl,ctx->cipher_data, - (DES_cblock *)ctx->iv,ctx->encrypt); + DES_cfb_encrypt(in, out, 8, (long)inl, ctx->cipher_data, + (DES_cblock *)ctx->iv, ctx->encrypt); return 1; - } +} BLOCK_CIPHER_defs(des, EVP_DES_KEY, NID_des, 8, 8, 8, 64, - EVP_CIPH_RAND_KEY, des_init_key, NULL, - EVP_CIPHER_set_asn1_iv, - EVP_CIPHER_get_asn1_iv, - des_ctrl) + EVP_CIPH_RAND_KEY, des_init_key, NULL, + EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, des_ctrl) -BLOCK_CIPHER_def_cfb(des,EVP_DES_KEY,NID_des,8,8,1, - EVP_CIPH_RAND_KEY, des_init_key,NULL, - EVP_CIPHER_set_asn1_iv, - EVP_CIPHER_get_asn1_iv,des_ctrl) + BLOCK_CIPHER_def_cfb(des, EVP_DES_KEY, NID_des, 8, 8, 1, + EVP_CIPH_RAND_KEY, des_init_key, NULL, + EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, des_ctrl) -BLOCK_CIPHER_def_cfb(des,EVP_DES_KEY,NID_des,8,8,8, - EVP_CIPH_RAND_KEY,des_init_key,NULL, - EVP_CIPHER_set_asn1_iv, - EVP_CIPHER_get_asn1_iv,des_ctrl) + BLOCK_CIPHER_def_cfb(des, EVP_DES_KEY, NID_des, 8, 8, 8, + EVP_CIPH_RAND_KEY, des_init_key, NULL, + EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, des_ctrl) static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv, int enc) - { - DES_cblock *deskey = (DES_cblock *)key; - EVP_DES_KEY *dat = (EVP_DES_KEY *)ctx->cipher_data; + const unsigned char *iv, int enc) +{ + DES_cblock *deskey = (DES_cblock *)key; + EVP_DES_KEY *dat = (EVP_DES_KEY *) ctx->cipher_data; - dat->stream.cbc = NULL; -#if defined(SPARC_DES_CAPABLE) - if (SPARC_DES_CAPABLE) - { - int mode = ctx->cipher->flags & EVP_CIPH_MODE; + dat->stream.cbc = NULL; +# if defined(SPARC_DES_CAPABLE) + if (SPARC_DES_CAPABLE) { + int mode = ctx->cipher->flags & EVP_CIPH_MODE; - if (mode == EVP_CIPH_CBC_MODE) - { - des_t4_key_expand(key,&dat->ks.ks); - dat->stream.cbc = enc ? des_t4_cbc_encrypt : - des_t4_cbc_decrypt; - return 1; - } - } -#endif -#ifdef EVP_CHECK_DES_KEY - if(DES_set_key_checked(deskey,dat->ks.ks) != 0) - return 0; -#else - DES_set_key_unchecked(deskey,ctx->cipher_data); -#endif - return 1; - } + if (mode == EVP_CIPH_CBC_MODE) { + des_t4_key_expand(key, &dat->ks.ks); + dat->stream.cbc = enc ? des_t4_cbc_encrypt : des_t4_cbc_decrypt; + return 1; + } + } +# endif +# ifdef EVP_CHECK_DES_KEY + if (DES_set_key_checked(deskey, dat->ks.ks) != 0) + return 0; +# else + DES_set_key_unchecked(deskey, ctx->cipher_data); +# endif + return 1; +} static int des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) - { - - switch(type) - { - case EVP_CTRL_RAND_KEY: - if (RAND_bytes(ptr, 8) <= 0) - return 0; - DES_set_odd_parity((DES_cblock *)ptr); - return 1; +{ + + switch (type) { + case EVP_CTRL_RAND_KEY: + if (RAND_bytes(ptr, 8) <= 0) + return 0; + DES_set_odd_parity((DES_cblock *)ptr); + return 1; - default: - return -1; - } - } + default: + return -1; + } +} #endif |