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Remove unnecessary multiplication

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To make the check projective‑invariant.
This commit is contained in:
Frank Denis
2026-01-02 12:00:59 +01:00
parent d92212b9c1
commit 3d7e6563d1
1 changed files with 1 additions and 2 deletions
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src/libsodium/crypto_core/ed25519/ref10/ed25519_ref10.c
+1 -2
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@@ -1180,8 +1180,7 @@ ge25519_has_small_order(const ge25519_p3 *p)
fe25519_mul(y_sqrtm1, p->Y, fe25519_sqrtm1);
fe25519_sub(c, y_sqrtm1, p->X);
ret |= fe25519_iszero(c);
fe25519_mul(c, p->X, p->Z);
fe25519_add(c, y_sqrtm1, c);
fe25519_add(c, y_sqrtm1, p->X);
ret |= fe25519_iszero(c);
return ret;