From 1d369ad2f3d2d46983fade8b2d277211f3f2282c Mon Sep 17 00:00:00 2001
From: z4yx <z4yx@users.noreply.github.com>
Date: Fri, 20 Dec 2024 22:56:34 +0800
Subject: [PATCH] X25519 key imported is little-endian

---
 src/key.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/key.c b/src/key.c
index 8f8a3fae..539e857e 100644
--- a/src/key.c
+++ b/src/key.c
@@ -136,6 +136,9 @@ int ck_parse_piv(ck_key_t *key, const uint8_t *buf, size_t buf_len) {
       return KEY_ERR_LENGTH;
     }
     memcpy(key->ecc.pri, p, PRIVATE_KEY_LENGTH[key->meta.type]);
+    if (key->meta.type == X25519) {
+      swap_big_number_endian(key->ecc.pri); // Private key of x25519 is encoded in little endian
+    }
     if (!ecc_verify_private_key(key->meta.type, &key->ecc)) {
       memzero(key, sizeof(ck_key_t));
       return KEY_ERR_DATA;