add EVP_des_cbc

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@23591 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2008-08-17 14:10:07 +00:00
parent aa3cf96645
commit 3cf44d5def

View File

@@ -1026,6 +1026,71 @@ EVP_rc4_40(void)
return NULL;
}
/*
*
*/
static int
des_cbc_init(EVP_CIPHER_CTX *ctx,
const unsigned char * key,
const unsigned char * iv,
int encp)
{
DES_key_schedule *k = ctx->cipher_data;
DES_cblock deskey;
memcpy(&deskey, key, sizeof(deskey));
DES_set_key_unchecked(&deskey, k);
return 1;
}
static int
des_cbc_do_cipher(EVP_CIPHER_CTX *ctx,
unsigned char *out,
const unsigned char *in,
unsigned int size)
{
DES_key_schedule *k = ctx->cipher_data;
DES_ede3_cbc_encrypt(in, out, size,
k, (DES_cblock *)ctx->iv, ctx->encrypt);
return 1;
}
static int
des_cbc_cleanup(EVP_CIPHER_CTX *ctx)
{
memset(ctx->cipher_data, 0, sizeof(struct des_ede3_cbc));
return 1;
}
/**
* The DES cipher type
*
* @return the DES-CBC EVP_CIPHER pointer.
*
* @ingroup hcrypto_evp
*/
const EVP_CIPHER *
EVP_des_cbc(void)
{
static const EVP_CIPHER des_ede3_cbc = {
0,
8,
8,
8,
EVP_CIPH_CBC_MODE,
des_cbc_init,
des_cbc_do_cipher,
des_cbc_cleanup,
sizeof(DES_key_schedule),
NULL,
NULL,
NULL,
NULL
};
return &des_ede3_cbc;
}
/*
*
*/