X-Git-Url: https://www.bearssl.org/gitweb//home/git/?p=BearSSL;a=blobdiff_plain;f=src%2Fec%2Fec_p256_m31.c;h=b185937e160603ecfc5ef911e811b319d41d2c49;hp=d57ef7b097fff4a59924b97f4ca6707246134486;hb=b2ec2030e40acf5e9e4cd0f2669aacb27eadb540;hpb=001d094d140488def90cb3876d5c03f4d79b3e27

diff --git a/src/ec/ec_p256_m31.c b/src/ec/ec_p256_m31.c
index d57ef7b..b185937 100644
--- a/src/ec/ec_p256_m31.c
+++ b/src/ec/ec_p256_m31.c
@@ -1384,12 +1384,13 @@ api_mul(unsigned char *G, size_t Glen,
 	p256_jacobian P;
 
 	(void)curve;
+	if (Glen != 65) {
+		return 0;
+	}
 	r = p256_decode(&P, G, Glen);
 	p256_mul(&P, x, xlen);
-	if (Glen >= 65) {
-		p256_to_affine(&P);
-		p256_encode(G, &P);
-	}
+	p256_to_affine(&P);
+	p256_encode(G, &P);
 	return r;
 }
 
@@ -1404,16 +1405,6 @@ api_mulgen(unsigned char *R,
 	p256_to_affine(&P);
 	p256_encode(R, &P);
 	return 65;
-
-	/*
-	const unsigned char *G;
-	size_t Glen;
-
-	G = api_generator(curve, &Glen);
-	memcpy(R, G, Glen);
-	api_mul(R, Glen, x, xlen, curve);
-	return Glen;
-	*/
 }
 
 static uint32_t
@@ -1426,6 +1417,9 @@ api_muladd(unsigned char *A, const unsigned char *B, size_t len,
 	int i;
 
 	(void)curve;
+	if (len != 65) {
+		return 0;
+	}
 	r = p256_decode(&P, A, len);
 	p256_mul(&P, x, xlen);
 	if (B == NULL) {