fix: Solana verify signature

packages/solana/src/account.ts

@@ -28,6 +28,7 @@ export class SOLAccount extends Account {
 
   constructor(publicKey: PublicKey, walletOrKeypair: Keypair | MessageSigner) {
     super(publicKey.toString())
+
     if (walletOrKeypair instanceof Keypair) {
       this.keypair = walletOrKeypair
       this.isKeypair = true
@@ -54,18 +55,25 @@ export class SOLAccount extends Account {
     const buffer = message.getVerificationBuffer()
 
     let signature
+    let publicKey: string // as Base58
 
     if (this.wallet) {
       const signed = await this.wallet.signMessage(buffer)
-      if (signed instanceof Uint8Array) signature = signed
-      else signature = signed.signature
+      signature = signed instanceof Uint8Array ? signed : signed.signature
+      publicKey = this.wallet.publicKey.toBase58()
     } else if (this.keypair) {
-      signature = base58.encode(nacl.sign.detached(buffer, this.keypair.secretKey))
+      signature = nacl.sign.detached(buffer, this.keypair.secretKey)
+      publicKey = this.keypair.publicKey.toBase58()
     } else {
       throw new Error('Cannot sign message')
     }
 
-    const signatureObj = JSON.stringify({ signature, publicKey: this.address })
+    signature = base58.encode(signature)
+
+    const signatureObj = JSON.stringify({
+      signature,
+      publicKey: publicKey,
+    })
 
     if (verifySolana(buffer, signatureObj)) return signatureObj
     throw new Error('Cannot proof the integrity of the signature')

packages/solana/src/verify.ts

@@ -1,5 +1,5 @@
 import { SignableMessage } from '@aleph-sdk/account'
-import bs58 from 'bs58'
+import base58 from 'bs58'
 import nacl from 'tweetnacl'
 
 /**
@@ -20,7 +20,7 @@ export function verifySolana(message: Uint8Array | SignableMessage, serializedSi
   const { signature, publicKey } = JSON.parse(serializedSignature)
 
   try {
-    return nacl.sign.detached.verify(message, bs58.decode(signature), bs58.decode(publicKey))
+    return nacl.sign.detached.verify(message, base58.decode(signature), base58.decode(publicKey))
   } catch (e: unknown) {
     return false
   }