/* ubi1024.c */
/*
- This file is part of the AVR-Crypto-Lib.
- Copyright (C) 2009 Daniel Otte (daniel.otte@rub.de)
+ This file is part of the ARM-Crypto-Lib.
+ Copyright (C) 2006-2010 Daniel Otte (daniel.otte@rub.de)
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
#include "memxor.h"
#include "ubi.h"
-void ubi1024_init(ubi1024_ctx_t* ctx, const void* g, uint8_t type){
- memset(ctx->tweak, 0, 15);
- ctx->tweak[15] = 0x40+type;
+void ubi1024_init(ubi1024_ctx_t *ctx, const void *g, uint8_t type){
+ memset(ctx->tweak.v8, 0, 15);
+ ctx->tweak.v8[15] = 0x40+type;
memcpy(ctx->g, g, UBI1024_BLOCKSIZE_B);
}
-void ubi1024_nextBlock(ubi1024_ctx_t* ctx, const void* block){
+void ubi1024_nextBlock(ubi1024_ctx_t *ctx, const void *block){
threefish1024_ctx_t tfctx;
- ((uint64_t*)(ctx->tweak))[0] += UBI1024_BLOCKSIZE_B;
- threefish1024_init(ctx->g, ctx->tweak, &tfctx);
+ ctx->tweak.v64[0] += UBI1024_BLOCKSIZE_B;
+ threefish1024_init(ctx->g, ctx->tweak.v8, &tfctx);
memcpy(ctx->g, block, UBI1024_BLOCKSIZE_B);
threefish1024_enc(ctx->g, &tfctx);
memxor(ctx->g, block, UBI1024_BLOCKSIZE_B);
- ctx->tweak[15] &= (uint8_t)~0x40;
+ ctx->tweak.v8[15] &= (uint8_t)~0x40;
}
-void ubi1024_lastBlock(ubi1024_ctx_t* ctx, const void* block, uint16_t length_b){
+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[15] |= 0x80;
- ((uint64_t*)(ctx->tweak))[0] += (length_b+7)/8;
+ ctx->tweak.v8[15] |= 0x80;
+ ctx->tweak.v64[0] += (length_b+7)/8;
if(length_b & 0x07)
- ctx->tweak[14] |= 0x80;
- threefish1024_init(ctx->g, ctx->tweak, &tfctx);
+ 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)
}
}
-void ubi1024_ctx2hash(void* dest, const ubi1024_ctx_t* ctx){
+void ubi1024_ctx2hash(void *dest, const ubi1024_ctx_t *ctx){
memcpy(dest, ctx->g, UBI1024_BLOCKSIZE_B);
}