diff options
| author | Andy Polyakov <appro@openssl.org> | 2004-01-27 21:47:35 +0000 |
|---|---|---|
| committer | Andy Polyakov <appro@openssl.org> | 2004-01-27 21:47:35 +0000 |
| commit | 8c6336b0aac8c34584116d2c05b6d828dc9d8ae6 (patch) | |
| tree | 00d5cd5a4f49583f6defa8c4c93de1afa7ac8dbd /crypto/evp/e_des3.c | |
| parent | 87203dc99aeaf3ef50b3df4ac99f2471d06434eb (diff) | |
CFB DES sync-up with FIPS branch.
Diffstat (limited to 'crypto/evp/e_des3.c')
| -rw-r--r-- | crypto/evp/e_des3.c | 45 |
1 files changed, 42 insertions, 3 deletions
diff --git a/crypto/evp/e_des3.c b/crypto/evp/e_des3.c index e036d07ba9..b462d7c6af 100644 --- a/crypto/evp/e_des3.c +++ b/crypto/evp/e_des3.c @@ -85,7 +85,7 @@ static int des_ede_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) { BLOCK_CIPHER_ecb_loop() - DES_ecb3_encrypt((DES_cblock *)(in + i), (DES_cblock *)(out + i), + DES_ecb3_encrypt(in + i,out + i, &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3, ctx->encrypt); @@ -121,7 +121,7 @@ static int des_ede_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, return 1; } -static int des_ede_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, +static int des_ede_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) { DES_ede3_cfb64_encrypt(in, out, (long)inl, @@ -130,13 +130,42 @@ static int des_ede_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, return 1; } +/* Although we have a CFB-r implementation for 3-DES, it doesn't pack the right + way, so wrap it here */ +static int des_ede3_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, unsigned int inl) + { + unsigned int n; + unsigned char c[1],d[1]; + + for(n=0 ; n < inl ; ++n) + { + c[0]=(in[n/8]&(1 << (7-n%8))) ? 0x80 : 0; + DES_ede3_cfb_encrypt(c,d,1,1, + &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3, + (DES_cblock *)ctx->iv,ctx->encrypt); + out[n/8]=(out[n/8]&~(0x80 >> (n%8)))|((d[0]&0x80) >> (n%8)); + } + + return 1; + } + +static int des_ede3_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, unsigned int inl) + { + DES_ede3_cfb_encrypt(in,out,8,inl, + &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3, + (DES_cblock *)ctx->iv,ctx->encrypt); + return 1; + } + BLOCK_CIPHER_defs(des_ede, DES_EDE_KEY, NID_des_ede, 8, 16, 8, 64, 0, des_ede_init_key, NULL, EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, NULL) -#define des_ede3_cfb_cipher des_ede_cfb_cipher +#define des_ede3_cfb64_cipher des_ede_cfb64_cipher #define des_ede3_ofb_cipher des_ede_ofb_cipher #define des_ede3_cbc_cipher des_ede_cbc_cipher #define des_ede3_ecb_cipher des_ede_ecb_cipher @@ -147,6 +176,16 @@ BLOCK_CIPHER_defs(des_ede3, DES_EDE_KEY, NID_des_ede3, 8, 24, 8, 64, EVP_CIPHER_get_asn1_iv, NULL) +BLOCK_CIPHER_def_cfb(des_ede3,DES_EDE_KEY,NID_des_ede3,24,8,1,0, + des_ede3_init_key,NULL, + EVP_CIPHER_set_asn1_iv, + EVP_CIPHER_get_asn1_iv,NULL) + +BLOCK_CIPHER_def_cfb(des_ede3,DES_EDE_KEY,NID_des_ede3,24,8,8,0, + des_ede3_init_key,NULL, + EVP_CIPHER_set_asn1_iv, + EVP_CIPHER_get_asn1_iv,NULL) + static int des_ede_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { |