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Simplify blkxor()

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This commit is contained in:
Frank Denis
2022-05-11 18:02:10 +02:00
parent 0727ce3454
commit f425d4d96f
1 changed files with 4 additions and 9 deletions
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src/libsodium/crypto_pwhash/scryptsalsa208sha256/nosse/pwhash_scryptsalsa208sha256_nosse.c
+4 -9
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@@ -44,25 +44,20 @@ blkcpy(uint32_t *dest, const uint32_t *src, size_t len)
memcpy(dest, src, len * 64);
}
typedef union escrypt_block_t {
uint32_t w[16];
uint64_t q[8];
} escrypt_block_t;
static inline void
blkxor(uint32_t *dest, const uint32_t *src, size_t len)
{
escrypt_block_t *dest_ = (escrypt_block_t *) (void *) dest;
const escrypt_block_t *src_ = (const escrypt_block_t *) (const void *) src;
size_t i;
#if ARCH_BITS == 32
for (i = 0; i < len * 16; i++) {
dest_->w[i] ^= src_->w[i];
dest[i] ^= src[i];
}
#else
uint64_t *dest_ = (uint64_t *) (void *) dest;
const uint64_t *src_ = (const uint64_t *) (const void *) src;
for (i = 0; i < len * 8; i++) {
dest_->q[i] ^= src_->q[i];
dest_[i] ^= src_[i];
}
#endif
}