From ff49ac8f24c7699600e43bdcc2090d50fca171e8 Mon Sep 17 00:00:00 2001
From: LittleChest <hiya@littlew.top>
Date: Wed, 8 Apr 2026 22:23:07 +0800
Subject: [PATCH] Fix SSHFP

---
 buffer.js | 11 +++++++++++
 index.js  |  5 +++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/buffer.js b/buffer.js
index ca9382d..616abd6 100644
--- a/buffer.js
+++ b/buffer.js
@@ -66,6 +66,16 @@ function hexToBuffer (hexStr) {
   return bytes
 }
 
+// Convert Uint8Array to hex string
+function bufferToHex (buf) {
+  let hex = ''
+  for (let i = 0; i < buf.length; i++) {
+    const byte = buf[i]
+    hex += (byte < 16 ? '0' : '') + byte.toString(16)
+  }
+  return hex.toUpperCase()
+}
+
 // Convert Uint8Array to string
 function bufferToString (buf, encoding, start, end) {
   encoding = encoding || 'utf-8'
@@ -179,6 +189,7 @@ module.exports = {
   stringToBuffer,
   base64ToBuffer,
   hexToBuffer,
+  bufferToHex,
   bufferToString,
   writeString,
   byteLength,
diff --git a/index.js b/index.js
index 1a3f3ae..0f4d537 100644
--- a/index.js
+++ b/index.js
@@ -15,7 +15,8 @@ const {
   readUInt32BE,
   writeUInt32BE,
   bufferCopy,
-  bufferConcat
+  bufferConcat,
+  bufferToHex
 } = require('./buffer')
 
 const types = require('./types')
@@ -1368,7 +1369,7 @@ rsshfp.decode = function decode (buf, offset) {
   offset += 1
 
   const fingerprintLength = rsshfp.getFingerprintLengthForHashType(record.hash)
-  record.fingerprint = buf.slice(offset, offset + fingerprintLength).toString('hex').toUpperCase()
+  record.fingerprint = bufferToHex(buf.slice(offset, offset + fingerprintLength))
   offset += fingerprintLength
   rsshfp.decode.bytes = offset - oldOffset
   return record