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/*
Copyright (C) 2010 Werner Dittmann
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <crypto/macSkein.h>
#include <stdlib.h>
void macSkein(uint8_t* key, int32_t key_length,
const uint8_t* data, uint32_t data_length,
uint8_t* mac, int32_t mac_length, SkeinSize_t skeinSize)
{
SkeinCtx_t ctx;
skeinCtxPrepare(&ctx, skeinSize);
skeinMacInit(&ctx, key, key_length, mac_length);
skeinUpdate(&ctx, data, data_length);
skeinFinal(&ctx, mac);
}
void macSkein(uint8_t* key, int32_t key_length,
const uint8_t* data[], uint32_t data_length[],
uint8_t* mac, int32_t mac_length, SkeinSize_t skeinSize)
{
SkeinCtx_t ctx;
skeinCtxPrepare(&ctx, skeinSize);
skeinMacInit(&ctx, key, key_length, mac_length);
while (*data) {
skeinUpdate(&ctx, *data, *data_length);
data++;
data_length ++;
}
skeinFinal(&ctx, mac);
}
void* createSkeinMacContext(uint8_t* key, int32_t key_length,
int32_t mac_length, SkeinSize_t skeinSize)
{
SkeinCtx_t* ctx = (SkeinCtx_t*)malloc(sizeof(SkeinCtx_t));
skeinCtxPrepare(ctx, skeinSize);
skeinMacInit(ctx, key, key_length, mac_length);
return ctx;
}
void macSkeinCtx(void* ctx, const uint8_t* data, uint32_t data_length,
uint8_t* mac)
{
SkeinCtx_t* pctx = (SkeinCtx_t*)ctx;
skeinUpdate(pctx, data, data_length);
skeinFinal(pctx, mac);
skeinReset(pctx);
}
void macSkeinCtx(void* ctx, const uint8_t* data[], uint32_t data_length[],
uint8_t* mac)
{
SkeinCtx_t* pctx = (SkeinCtx_t*)ctx;
while (*data) {
skeinUpdate(pctx, *data, *data_length);
data++;
data_length++;
}
skeinFinal(pctx, mac);
skeinReset(pctx);
}
void freeSkeinMacContext(void* ctx)
{
if (ctx)
free(ctx);
}
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