diff options
Diffstat (limited to 'src/crypto/cipher/e_des.c')
-rw-r--r-- | src/crypto/cipher/e_des.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/crypto/cipher/e_des.c b/src/crypto/cipher/e_des.c index 74e1fce..d7bef92 100644 --- a/src/crypto/cipher/e_des.c +++ b/src/crypto/cipher/e_des.c @@ -96,6 +96,30 @@ static const EVP_CIPHER des_cbc = { const EVP_CIPHER *EVP_des_cbc(void) { return &des_cbc; } +static int des_ecb_cipher(EVP_CIPHER_CTX *ctx, uint8_t *out, const uint8_t *in, + size_t in_len) { + if (in_len < ctx->cipher->block_size) { + return 1; + } + in_len -= ctx->cipher->block_size; + + EVP_DES_KEY *dat = (EVP_DES_KEY *) ctx->cipher_data; + for (size_t i = 0; i <= in_len; i += ctx->cipher->block_size) { + DES_ecb_encrypt((DES_cblock *) (in + i), (DES_cblock *) (out + i), + &dat->ks.ks, ctx->encrypt); + } + return 1; +} + +static const EVP_CIPHER des_ecb = { + NID_des_ecb, 8 /* block_size */, 8 /* key_size */, + 0 /* iv_len */, sizeof(EVP_DES_KEY), EVP_CIPH_ECB_MODE, + NULL /* app_data */, des_init_key, des_ecb_cipher, + NULL /* cleanup */, NULL /* ctrl */, }; + +const EVP_CIPHER *EVP_des_ecb(void) { return &des_ecb; } + + typedef struct { union { double align; |