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Change-Id: Ib4714d94fbda9f604683ad4c64dcb222714f4a85
This commit is contained in:
Henry Case 2019-04-19 12:58:50 +01:00
parent 4d03fe12e5
commit 29e9ce00cb
3 changed files with 9 additions and 8 deletions
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10
third_party/sike/fpx.c vendored
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@ -163,9 +163,9 @@ inline static void mp_addfast(const felm_t a, const felm_t b, felm_t c)
// Multiprecision subtraction, c = a-b, where lng(a) = lng(b) = 2*NWORDS_FIELD.
// If c < 0 then returns mask = 0xFF..F, else mask = 0x00..0
inline static crypto_word_t mp_subfast(const felm_t a, const felm_t b, felm_t c) {
inline static crypto_word_t mp_subfast(const dfelm_t a, const dfelm_t b, dfelm_t c) {
#if defined(OPENSSL_NO_ASM)
return (0 - (crypto_word_t)mp_sub(a, b, c, 2*NWORDS_FIELD));
return (0 - (crypto_word_t)mp_sub((felm_t)a, (felm_t)b, (felm_t)c, 2*NWORDS_FIELD));
#else
return sike_mpsubx2_asm(a, b, c);
#endif
@ -173,10 +173,10 @@ inline static crypto_word_t mp_subfast(const felm_t a, const felm_t b, felm_t c)
// Multiprecision subtraction, c = c-a-b, where lng(a) = lng(b) = 2*NWORDS_FIELD.
// Inputs should be s.t. c > a and c > b
inline static void mp_dblsubfast(const felm_t a, const felm_t b, felm_t c) {
inline static void mp_dblsubfast(const dfelm_t a, const dfelm_t b, dfelm_t c) {
#if defined(OPENSSL_NO_ASM)
mp_sub(c, a, c, 2*NWORDS_FIELD);
mp_sub(c, b, c, 2*NWORDS_FIELD);
mp_sub((felm_t)c, (felm_t)a, (felm_t)c, 2*NWORDS_FIELD);
mp_sub((felm_t)c, (felm_t)b, (felm_t)c, 2*NWORDS_FIELD);
#else
sike_mpdblsubx2_asm(a, b, c);
#endif

2
third_party/sike/fpx.h vendored
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@ -22,7 +22,7 @@ void sike_fprdc(const dfelm_t a, felm_t c);
// Double 2x503-bit multiprecision subtraction, c = c-a-b
void sike_mpdblsubx2_asm(const felm_t a, const felm_t b, felm_t c);
// Multiprecision subtraction, c = a-b
crypto_word_t sike_mpsubx2_asm(const felm_t a, const felm_t b, felm_t c);
crypto_word_t sike_mpsubx2_asm(const dfelm_t a, const dfelm_t b, dfelm_t c);
// 503-bit multiprecision addition, c = a+b
void sike_mpadd_asm(const felm_t a, const felm_t b, felm_t c);
// Modular negation, a = -a mod p503.

5
third_party/sike/sike_test.cc vendored
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@ -196,12 +196,13 @@ TEST(SIKE, Negative) {
#if defined(SUPPORTS_ABI_TEST) && defined(OPENSSL_X86_64)
TEST(SIKE, ABI) {
felm_t a, b, c;
dfelm_t d;
dfelm_t d, e, f;
CHECK_ABI(sike_fpadd, a, b, c);
CHECK_ABI(sike_fpsub, a, b, c);
CHECK_ABI(sike_mpmul, a, b, d);
CHECK_ABI(sike_fprdc, d, a);
CHECK_ABI(sike_mpadd_asm, a, b, c);
CHECK_ABI(sike_mpsubx2_asm, a, b, c);
CHECK_ABI(sike_mpsubx2_asm, d, e, f);
CHECK_ABI(sike_mpdblsubx2_asm, d, e, f);
}
#endif // SUPPORTS_ABI_TEST && X86_64