void ubi1024_lastBlock(ubi1024_ctx_t* ctx, const void* block, uint16_t length_b){
threefish1024_ctx_t tfctx;
while(length_b>UBI1024_BLOCKSIZE){
ubi1024_nextBlock(ctx, block);
block = (uint8_t*)block + UBI1024_BLOCKSIZE_B;
length_b -= UBI1024_BLOCKSIZE;
}
ctx->tweak.v8[15] |= 0x80;
ctx->tweak.v64[0] += (length_b+7)/8;
if(length_b & 0x07)
ctx->tweak.v8[14] |= 0x80;
threefish1024_init(ctx->g, ctx->tweak.v8, &tfctx);
memset(ctx->g, 0, UBI1024_BLOCKSIZE_B);
memcpy(ctx->g, block, (length_b+7)/8);
if(length_b & 0x07)
ctx->g[(length_b+7)/8-1] |= 0x80>>(length_b&7);
threefish1024_enc(ctx->g, &tfctx);
memxor(ctx->g, block, (length_b+7)/8);
if(length_b & 0x07){
ctx->g[((length_b+7)/8)-1] ^= 0x80>>(length_b&7);
}
void skein1024_nextBlock(skein1024_ctx_t *ctx, const void *block){
ubi1024_nextBlock(&(ctx->ubictx), block);
}
