fix: remove rendundant public key

src/keys/ed25519-class.js

@@ -5,7 +5,6 @@ const protobuf = require('protons')
 const multibase = require('multibase')
 const errcode = require('err-code')
 const uint8ArrayEquals = require('uint8arrays/equals')
-const uint8ArrayConcat = require('uint8arrays/concat')
 
 const crypto = require('./ed25519')
 const pbm = protobuf(require('./keys.proto'))
@@ -57,7 +56,7 @@ class Ed25519PrivateKey {
   }
 
   marshal () {
-    return uint8ArrayConcat([this._key, this._publicKey])
+    return this._key
   }
 
   get bytes () {

test/keys/ed25519.spec.js

@@ -157,6 +157,13 @@ describe('ed25519', function () {
       expect(ok).to.eql(true)
     })
 
+    it('does not include the redundant public key when marshalling privatekey', async () => {
+      const key = await crypto.keys.unmarshalPrivateKey(fixtures.redundantPubKey.privateKey)
+      const bytes = key.marshal()
+      expect(bytes.length).to.equal(64)
+      expect(bytes.slice(32)).to.eql(key.public.marshal())
+    })
+
     it('verifies with data from go with redundant public key', async () => {
       const key = crypto.keys.unmarshalPublicKey(fixtures.redundantPubKey.publicKey)
       const ok = await key.verify(fixtures.redundantPubKey.data, fixtures.redundantPubKey.signature)