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Code Issues Releases Wiki Activity

Prepare to make byte swapping more intuitional in encoding/decoding functions

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This commit is contained in:
jsteube 2019-01-08 20:09:55 +01:00
parent aea8f5567f
commit 6aa7c9befb
1 changed files with 18 additions and 102 deletions
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120
src/shared.c
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@ -1269,130 +1269,46 @@ void encoder_apply_optimizer (const hashconfig_t *hashconfig, void *data)
void decoder_apply_options (const hashconfig_t *hashconfig, void *data)
{
const u32 hash_type = hashconfig->hash_type;
const u32 opti_type = hashconfig->opti_type;
const u64 opts_type = hashconfig->opts_type;
const u32 dgst_size = hashconfig->dgst_size;
u32 *digest_buf = (u32 *) data;
u64 *digest_buf64 = (u64 *) data;
if (opts_type & OPTS_TYPE_STATE_BUFFER_BE)
{
if (dgst_size == DGST_SIZE_4_2)
if (opti_type & OPTI_TYPE_USES_BITS_64)
{
for (int i = 0; i < 2; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
u64 *digest_buf64 = (u64 *) data;
for (u32 i = 0; i < dgst_size / 8; i++) digest_buf64[i] = byte_swap_64 (digest_buf64[i]);
}
else if (dgst_size == DGST_SIZE_4_4)
else
{
for (int i = 0; i < 4; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
}
else if (dgst_size == DGST_SIZE_4_5)
{
for (int i = 0; i < 5; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
}
else if (dgst_size == DGST_SIZE_4_6)
{
for (int i = 0; i < 6; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
}
else if (dgst_size == DGST_SIZE_4_7)
{
for (int i = 0; i < 7; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
}
else if (dgst_size == DGST_SIZE_4_8)
{
for (int i = 0; i < 8; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
}
else if ((dgst_size == DGST_SIZE_4_16) || (dgst_size == DGST_SIZE_8_8)) // same size, same result :)
{
if (hash_type == HASH_TYPE_WHIRLPOOL)
{
for (int i = 0; i < 16; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
}
else if (hash_type == HASH_TYPE_SHA384)
{
for (int i = 0; i < 8; i++) digest_buf64[i] = byte_swap_64 (digest_buf64[i]);
}
else if (hash_type == HASH_TYPE_SHA512)
{
for (int i = 0; i < 8; i++) digest_buf64[i] = byte_swap_64 (digest_buf64[i]);
}
else if (hash_type == HASH_TYPE_GOST)
{
for (int i = 0; i < 16; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
}
}
else if (dgst_size == DGST_SIZE_4_64)
{
for (int i = 0; i < 64; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
}
else if (dgst_size == DGST_SIZE_8_25)
{
for (int i = 0; i < 25; i++) digest_buf64[i] = byte_swap_64 (digest_buf64[i]);
u32 *digest_buf32 = (u32 *) data;
for (u32 i = 0; i < dgst_size / 4; i++) digest_buf32[i] = byte_swap_32 (digest_buf32[i]);
}
}
}
void encoder_apply_options (const hashconfig_t *hashconfig, void *data)
{
const u32 hash_type = hashconfig->hash_type;
const u32 opti_type = hashconfig->opti_type;
const u64 opts_type = hashconfig->opts_type;
const u32 dgst_size = hashconfig->dgst_size;
u32 *digest_buf = (u32 *) data;
u64 *digest_buf64 = (u64 *) data;
if (opts_type & OPTS_TYPE_STATE_BUFFER_BE)
{
if (dgst_size == DGST_SIZE_4_2)
if (opti_type & OPTI_TYPE_USES_BITS_64)
{
for (int i = 0; i < 2; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
u64 *digest_buf64 = (u64 *) data;
for (u32 i = 0; i < dgst_size / 8; i++) digest_buf64[i] = byte_swap_64 (digest_buf64[i]);
}
else if (dgst_size == DGST_SIZE_4_4)
else
{
for (int i = 0; i < 4; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
}
else if (dgst_size == DGST_SIZE_4_5)
{
for (int i = 0; i < 5; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
}
else if (dgst_size == DGST_SIZE_4_6)
{
for (int i = 0; i < 6; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
}
else if (dgst_size == DGST_SIZE_4_7)
{
for (int i = 0; i < 7; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
}
else if (dgst_size == DGST_SIZE_4_8)
{
for (int i = 0; i < 8; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
}
else if ((dgst_size == DGST_SIZE_4_16) || (dgst_size == DGST_SIZE_8_8)) // same size, same result :)
{
if (hash_type == HASH_TYPE_WHIRLPOOL)
{
for (int i = 0; i < 16; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
}
else if (hash_type == HASH_TYPE_SHA384)
{
for (int i = 0; i < 8; i++) digest_buf64[i] = byte_swap_64 (digest_buf64[i]);
}
else if (hash_type == HASH_TYPE_SHA512)
{
for (int i = 0; i < 8; i++) digest_buf64[i] = byte_swap_64 (digest_buf64[i]);
}
else if (hash_type == HASH_TYPE_GOST)
{
for (int i = 0; i < 16; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
}
}
else if (dgst_size == DGST_SIZE_4_64)
{
for (int i = 0; i < 64; i++) digest_buf[i] = byte_swap_32 (digest_buf[i]);
}
else if (dgst_size == DGST_SIZE_8_25)
{
for (int i = 0; i < 25; i++) digest_buf64[i] = byte_swap_64 (digest_buf64[i]);
u32 *digest_buf32 = (u32 *) data;
for (u32 i = 0; i < dgst_size / 4; i++) digest_buf32[i] = byte_swap_32 (digest_buf32[i]);
}
}
}