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/*
* 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 "prov/ciphercommon.h"
#include "cipher_tdes.h"
#define ks1 tks.ks[0]
#define ks2 tks.ks[1]
#define ks3 tks.ks[2]
int ossl_cipher_hw_tdes_ede3_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;
tctx->tstream.cbc = NULL;
# if defined(SPARC_DES_CAPABLE)
if (SPARC_DES_CAPABLE) {
if (ctx->mode == EVP_CIPH_CBC_MODE) {
des_t4_key_expand(&deskey[0], &tctx->ks1);
des_t4_key_expand(&deskey[1], &tctx->ks2);
des_t4_key_expand(&deskey[2], &tctx->ks3);
tctx->tstream.cbc = ctx->enc ? des_t4_ede3_cbc_encrypt :
des_t4_ede3_cbc_decrypt;
return 1;
}
}
# endif
DES_set_key_unchecked(&deskey[0], &tctx->ks1);
DES_set_key_unchecked(&deskey[1], &tctx->ks2);
DES_set_key_unchecked(&deskey[2], &tctx->ks3);
return 1;
}
void ossl_cipher_hw_tdes_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;
}
int ossl_cipher_hw_tdes_cbc(PROV_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t inl)
{
PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
if (tctx->tstream.cbc != NULL) {
(*tctx->tstream.cbc) (in, out, inl, tctx->tks.ks, ctx->iv);
return 1;
}
while (inl >= MAXCHUNK) {
DES_ede3_cbc_encrypt(in, out, (long)MAXCHUNK, &tctx->ks1, &tctx->ks2,
&tctx->ks3, (DES_cblock *)ctx->iv, ctx->enc);
inl -= MAXCHUNK;
in += MAXCHUNK;
out += MAXCHUNK;
}
if (inl > 0)
DES_ede3_cbc_encrypt(in, out, (long)inl, &tctx->ks1, &tctx->ks2,
&tctx->ks3, (DES_cblock *)ctx->iv, ctx->enc);
return 1;
}
int ossl_cipher_hw_tdes_ecb(PROV_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t len)
{
size_t i;
PROV_TDES_CTX *tctx = (PROV_TDES_CTX *)ctx;
if (len < DES_BLOCK_SIZE)
return 1;
for (i = 0, len -= DES_BLOCK_SIZE; i <= len; i += DES_BLOCK_SIZE) {
DES_ecb3_encrypt((const_DES_cblock *)(in + i), (DES_cblock *)(out + i),
&tctx->ks1, &tctx->ks2, &tctx->ks3, ctx->enc);
}
return 1;
}
PROV_CIPHER_HW_tdes_mode(ede3, ecb)
PROV_CIPHER_HW_tdes_mode(ede3, cbc)
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