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Remove conditional preprocessor statements

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This commit is contained in:
Joost Rijneveld 2019-04-09 17:32:28 +02:00
parent 80af118676
commit 6cb332cae5
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GPG Key ID: A4FE39CF49CBC553
3 changed files with 2 additions and 37 deletions
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3
crypto_sign/sphincs-shake256-128f-simple/clean/address.c
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@ -20,9 +20,6 @@ void PQCLEAN_SPHINCSSHAKE256128FSIMPLE_CLEAN_set_layer_addr(
void PQCLEAN_SPHINCSSHAKE256128FSIMPLE_CLEAN_set_tree_addr(
uint32_t addr[8], uint64_t tree) {
#if (SPX_TREE_HEIGHT * (SPX_D - 1)) > 64
#error Subtree addressing is currently limited to at most 2^64 trees
#endif
addr[1] = 0;
addr[2] = (uint32_t) (tree >> 32);
addr[3] = (uint32_t) tree;

4
crypto_sign/sphincs-shake256-128f-simple/clean/hash_shake256.c
View File

@ -75,10 +75,6 @@ void PQCLEAN_SPHINCSSHAKE256128FSIMPLE_CLEAN_hash_message(
memcpy(digest, bufp, SPX_FORS_MSG_BYTES);
bufp += SPX_FORS_MSG_BYTES;
#if SPX_TREE_BITS > 64
#error For given height and depth, 64 bits cannot represent all subtrees
#endif
*tree = PQCLEAN_SPHINCSSHAKE256128FSIMPLE_CLEAN_bytes_to_ull(
bufp, SPX_TREE_BYTES);
*tree &= (~(uint64_t)0) >> (64 - SPX_TREE_BITS);

28
crypto_sign/sphincs-shake256-128f-simple/clean/params.h
View File

@ -20,36 +20,12 @@
#define SPX_ADDR_BYTES 32
/* WOTS parameters. */
#if SPX_WOTS_W == 256
#define SPX_WOTS_LOGW 8
#elif SPX_WOTS_W == 16
#define SPX_WOTS_LOGW 4
#else
#error SPX_WOTS_W assumed 16 or 256
#endif
#define SPX_WOTS_LEN1 (8 * SPX_N / SPX_WOTS_LOGW)
/* SPX_WOTS_LEN2 is floor(log(len_1 * (w - 1)) / log(w)) + 1; we precompute */
#if SPX_WOTS_W == 256
#if SPX_N <= 1
#define SPX_WOTS_LEN2 1
#elif SPX_N <= 256
#define SPX_WOTS_LEN2 2
#else
#error Did not precompute SPX_WOTS_LEN2 for n outside {2, .., 256}
#endif
#elif SPX_WOTS_W == 16
#if SPX_N <= 8
#define SPX_WOTS_LEN2 2
#elif SPX_N <= 136
#define SPX_WOTS_LEN2 3
#elif SPX_N <= 256
#define SPX_WOTS_LEN2 4
#else
#error Did not precompute SPX_WOTS_LEN2 for n outside {2, .., 256}
#endif
#endif
#define SPX_WOTS_LEN (SPX_WOTS_LEN1 + SPX_WOTS_LEN2)
#define SPX_WOTS_BYTES (SPX_WOTS_LEN * SPX_N)
@ -58,10 +34,6 @@
/* Subtree size. */
#define SPX_TREE_HEIGHT (SPX_FULL_HEIGHT / SPX_D)
#if SPX_TREE_HEIGHT * SPX_D != SPX_FULL_HEIGHT
#error SPX_D should always divide SPX_FULL_HEIGHT
#endif
/* FORS parameters. */
#define SPX_FORS_MSG_BYTES ((SPX_FORS_HEIGHT * SPX_FORS_TREES + 7) / 8)
#define SPX_FORS_BYTES ((SPX_FORS_HEIGHT + 1) * SPX_FORS_TREES * SPX_N)