Fix SSHFP

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,

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