kris/pqcrypto
1
1
Forka 0
mirror da https://github.com/henrydcase/pqc.git synced 2024-11-22 07:35:38 +00:00
Codice Problemi 1 Rilasci Wiki Attività

NTRU Prime: more unary negations

Sfoglia il codice sorgente
This commit is contained in:
John M. Schanck 2020-09-01 17:15:01 -04:00 committato da Kris Kwiatkowski
parent c2d2d145b7
commit 333248de03
3 ha cambiato i file con 3 aggiunte e 3 eliminazioni
Mostra statistiche Scarica il file Patch Scarica il file Diff Expand all files Collapse all files

2
crypto_kem/sntrup653/clean/crypto_core_invsntrup653.c
Vedi File

@ -15,7 +15,7 @@
static int int16_nonzero_mask(int16 x) {
uint16 u = (uint16) x; /* 0, else 1...65535 */
uint32 v = u; /* 0, else 1...65535 */
v = -v; /* 0, else 2^32-65535...2^32-1 */
v = ~v + 1; /* 0, else 2^32-65535...2^32-1 */
v >>= 31; /* 0, else 1 */
return -(int) v; /* 0, else -1 */
}

2
crypto_kem/sntrup761/clean/crypto_core_invsntrup761.c
Vedi File

@ -15,7 +15,7 @@
static int int16_nonzero_mask(int16 x) {
uint16 u = (uint16) x; /* 0, else 1...65535 */
uint32 v = u; /* 0, else 1...65535 */
v = -v; /* 0, else 2^32-65535...2^32-1 */
v = ~v + 1; /* 0, else 2^32-65535...2^32-1 */
v >>= 31; /* 0, else 1 */
return -(int) v; /* 0, else -1 */
}

2
crypto_kem/sntrup857/clean/crypto_core_invsntrup857.c
Vedi File

@ -15,7 +15,7 @@
static int int16_nonzero_mask(int16 x) {
uint16 u = (uint16) x; /* 0, else 1...65535 */
uint32 v = u; /* 0, else 1...65535 */
v = -v; /* 0, else 2^32-65535...2^32-1 */
v = ~v + 1; /* 0, else 2^32-65535...2^32-1 */
v >>= 31; /* 0, else 1 */
return -(int) v; /* 0, else -1 */
}