From adb76f82eadadf4f9df4cd958f7c266b551b50c6 Mon Sep 17 00:00:00 2001
From: Sebastian Falbesoner <sebastian.falbesoner@gmail.com>
Date: Mon, 17 Nov 2025 16:58:01 +0100
Subject: [PATCH] use new `_eckey_pubkey_serialize{33,65}` functions in public
 API

---
 src/secp256k1.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/secp256k1.c b/src/secp256k1.c
index 26336a45..c2d3fcbd 100644
--- a/src/secp256k1.c
+++ b/src/secp256k1.c
@@ -280,10 +280,14 @@ int secp256k1_ec_pubkey_serialize(const secp256k1_context* ctx, unsigned char *o
     ARG_CHECK(pubkey != NULL);
     ARG_CHECK((flags & SECP256K1_FLAGS_TYPE_MASK) == SECP256K1_FLAGS_TYPE_COMPRESSION);
     if (secp256k1_pubkey_load(ctx, &Q, pubkey)) {
-        ret = secp256k1_eckey_pubkey_serialize(&Q, output, &len, !!(flags & SECP256K1_FLAGS_BIT_COMPRESSION));
-        if (ret) {
-            *outputlen = len;
+        if (flags & SECP256K1_FLAGS_BIT_COMPRESSION) {
+            secp256k1_eckey_pubkey_serialize33(&Q, output);
+            *outputlen = 33;
+        } else {
+            secp256k1_eckey_pubkey_serialize65(&Q, output);
+            *outputlen = 65;
         }
+        ret = 1;
     }
     return ret;
 }