From 6a67dbe9f659d5631adbcd1be8c59a4411ba6fd4 Mon Sep 17 00:00:00 2001
From: sstone <fabrice.drouin@acinq.fr>
Date: Thu, 10 Sep 2020 20:21:58 +0200
Subject: [PATCH] signatureNormalize: relax check on signature size

Checking that the sig size is >= 64 is enough, this is just a quick check before the actual library method is called.
---
 src/nativeMain/kotlin/fr/acinq/secp256k1/Secp256k1Native.kt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/nativeMain/kotlin/fr/acinq/secp256k1/Secp256k1Native.kt b/src/nativeMain/kotlin/fr/acinq/secp256k1/Secp256k1Native.kt
index 1e2b95f..d6a9427 100644
--- a/src/nativeMain/kotlin/fr/acinq/secp256k1/Secp256k1Native.kt
+++ b/src/nativeMain/kotlin/fr/acinq/secp256k1/Secp256k1Native.kt
@@ -79,7 +79,7 @@ public object Secp256k1Native : Secp256k1 {
     }
 
     public override fun signatureNormalize(sig: ByteArray): Pair<ByteArray, Boolean> {
-        require(sig.size == 64 || sig.size in 70..73)
+        require(sig.size >= 64){ "invalid signature ${Hex.encode(sig)}" }
         memScoped {
             val nSig = allocSignature(sig)
             val isHighS = secp256k1_ecdsa_signature_normalize(ctx, nSig.ptr, nSig.ptr)