crypto/skein/skein.c

141 int Skein_256_Update(Skein_256_Ctxt_t *ctx, const u08b_t *msg, size_t msgByteCnt)
148     if (msgByteCnt + ctx->h.bCnt > SKEIN_256_BLOCK_BYTES)
155                 Skein_assert(n < msgByteCnt);         /* check on our logic here */
157                 msgByteCnt  -= n;
166         if (msgByteCnt > SKEIN_256_BLOCK_BYTES)
168             n = (msgByteCnt-1) / SKEIN_256_BLOCK_BYTES;   /* number of full blocks to process */
170             msgByteCnt -= n * SKEIN_256_BLOCK_BYTES;
177     if (msgByteCnt)
179         Skein_assert(msgByteCnt + ctx->h.bCnt <= SKEIN_256_BLOCK_BYTES);
180         memcpy(&ctx->b[ctx->h.bCnt],msg,msgByteCnt);
181         ctx->h.bCnt += msgByteCnt;
339 int Skein_512_Update(Skein_512_Ctxt_t *ctx, const u08b_t *msg, size_t msgByteCnt)
346     if (msgByteCnt + ctx->h.bCnt > SKEIN_512_BLOCK_BYTES)
353                 Skein_assert(n < msgByteCnt);         /* check on our logic here */
355                 msgByteCnt  -= n;
364         if (msgByteCnt > SKEIN_512_BLOCK_BYTES)
366             n = (msgByteCnt-1) / SKEIN_512_BLOCK_BYTES;   /* number of full blocks to process */
368             msgByteCnt -= n * SKEIN_512_BLOCK_BYTES;
375     if (msgByteCnt)
377         Skein_assert(msgByteCnt + ctx->h.bCnt <= SKEIN_512_BLOCK_BYTES);
378         memcpy(&ctx->b[ctx->h.bCnt],msg,msgByteCnt);
379         ctx->h.bCnt += msgByteCnt;
536 int Skein1024_Update(Skein1024_Ctxt_t *ctx, const u08b_t *msg, size_t msgByteCnt)
543     if (msgByteCnt + ctx->h.bCnt > SKEIN1024_BLOCK_BYTES)
550                 Skein_assert(n < msgByteCnt);         /* check on our logic here */
552                 msgByteCnt  -= n;
561         if (msgByteCnt > SKEIN1024_BLOCK_BYTES)
563             n = (msgByteCnt-1) / SKEIN1024_BLOCK_BYTES;   /* number of full blocks to process */
565             msgByteCnt -= n * SKEIN1024_BLOCK_BYTES;
572     if (msgByteCnt)
574         Skein_assert(msgByteCnt + ctx->h.bCnt <= SKEIN1024_BLOCK_BYTES);
575         memcpy(&ctx->b[ctx->h.bCnt],msg,msgByteCnt);
576         ctx->h.bCnt += msgByteCnt;