mirror of
https://github.com/openssl/openssl.git
synced 2024-12-21 06:09:35 +08:00
7d6766cb53
Also convert the names to lower case. Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/13014)
81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/*
|
|
* Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
|
|
*
|
|
* Licensed under the Apache License 2.0 (the "License"). You may not use
|
|
* this file except in compliance with the License. You can obtain a copy
|
|
* in the file LICENSE in the source distribution or at
|
|
* https://www.openssl.org/source/license.html
|
|
*/
|
|
|
|
/*
|
|
* DES low level APIs are deprecated for public use, but still ok for internal
|
|
* use.
|
|
*/
|
|
#include "internal/deprecated.h"
|
|
|
|
#include <openssl/des.h>
|
|
#include "cipher_tdes_default.h"
|
|
|
|
/*
|
|
* Note the PROV_TDES_CTX has been used for the DESX cipher, just to reduce
|
|
* code size.
|
|
*/
|
|
#define ks1 tks.ks[0]
|
|
#define ks2 tks.ks[1].ks[0].cblock
|
|
#define ks3 tks.ks[2].ks[0].cblock
|
|
|
|
static int cipher_hw_desx_cbc_initkey(PROV_CIPHER_CTX *ctx,
|
|
const unsigned char *key, size_t keylen)
|
|
{
|
|
PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
|
|
DES_cblock *deskey = (DES_cblock *)key;
|
|
|
|
DES_set_key_unchecked(deskey, &tctx->ks1);
|
|
memcpy(&tctx->ks2, &key[8], 8);
|
|
memcpy(&tctx->ks3, &key[16], 8);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void cipher_hw_desx_copyctx(PROV_CIPHER_CTX *dst,
|
|
const PROV_CIPHER_CTX *src)
|
|
{
|
|
PROV_TDES_CTX *sctx = (PROV_TDES_CTX *)src;
|
|
PROV_TDES_CTX *dctx = (PROV_TDES_CTX *)dst;
|
|
|
|
*dctx = *sctx;
|
|
dst->ks = &dctx->tks.ks;
|
|
}
|
|
|
|
static int cipher_hw_desx_cbc(PROV_CIPHER_CTX *ctx, unsigned char *out,
|
|
const unsigned char *in, size_t inl)
|
|
{
|
|
PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
|
|
|
|
while (inl >= MAXCHUNK) {
|
|
DES_xcbc_encrypt(in, out, (long)MAXCHUNK, &tctx->ks1,
|
|
(DES_cblock *)ctx->iv, &tctx->ks2, &tctx->ks3,
|
|
ctx->enc);
|
|
inl -= MAXCHUNK;
|
|
in += MAXCHUNK;
|
|
out += MAXCHUNK;
|
|
}
|
|
if (inl > 0)
|
|
DES_xcbc_encrypt(in, out, (long)inl, &tctx->ks1,
|
|
(DES_cblock *)ctx->iv, &tctx->ks2, &tctx->ks3,
|
|
ctx->enc);
|
|
return 1;
|
|
}
|
|
|
|
static const PROV_CIPHER_HW desx_cbc =
|
|
{
|
|
cipher_hw_desx_cbc_initkey,
|
|
cipher_hw_desx_cbc,
|
|
cipher_hw_desx_copyctx
|
|
};
|
|
|
|
const PROV_CIPHER_HW *ossl_prov_cipher_hw_tdes_desx_cbc(void)
|
|
{
|
|
return &desx_cbc;
|
|
}
|