From 7554f9dc9bac4f0df3b22de4e4b3c6505f94bccb Mon Sep 17 00:00:00 2001 From: HONG Yifan Date: Fri, 18 Jul 2025 19:29:17 +0000 Subject: [PATCH 3/3] Don't use EC_POINTs_mul Original author is joerichey@google.com. Original patch comments: BoringSSL does not support this method. It has been proposed for deprecation. See: https://github.com/openssl/openssl/issues/8332 Normal code paths will never hit this anyway. The S point is optional and rarely specificed. --- TPMCmd/tpm/cryptolibs/Ossl/BnToOsslMath.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/TPMCmd/tpm/cryptolibs/Ossl/BnToOsslMath.c b/TPMCmd/tpm/cryptolibs/Ossl/BnToOsslMath.c index 5d9b53d..aae0f2c 100644 --- a/TPMCmd/tpm/cryptolibs/Ossl/BnToOsslMath.c +++ b/TPMCmd/tpm/cryptolibs/Ossl/BnToOsslMath.c @@ -489,7 +489,6 @@ LIB_EXPORT BOOL BnEccModMult2(bigPoint R, // OUT: computed point ) { EC_POINT* pR = EC_POINT_new(E->G); - EC_POINT* pS = EcPointInitialized(S, E); BIG_INITIALIZED(bnD, d); EC_POINT* pQ = EcPointInitialized(Q, E); BIG_INITIALIZED(bnU, u); @@ -498,17 +497,10 @@ LIB_EXPORT BOOL BnEccModMult2(bigPoint R, // OUT: computed point EC_POINT_mul(E->G, pR, bnD, pQ, bnU, E->CTX); else { - const EC_POINT* points[2]; - const BIGNUM* scalars[2]; - points[0] = pS; - points[1] = pQ; - scalars[0] = bnD; - scalars[1] = bnU; - EC_POINTs_mul(E->G, pR, NULL, 2, points, scalars, E->CTX); + return FALSE; } PointFromOssl(R, pR, E); EC_POINT_free(pR); - EC_POINT_free(pS); EC_POINT_free(pQ); return !BnEqualZero(R->z); } -- 2.50.0.727.gbf7dc18ff4-goog