Unable to decrypt data

[ihor-protsenko-theraven]

Summary

Hi everyone, I tried to use deep links using this guide: https://phantom.app/learn/blog/the-complete-guide-to-phantom-deeplinks

I am stranded with a decryption error. Any idea what's wrong?

redirect link http://my-web-app-link?phantom_encryption_public_key=GizcmtSP17ZjJZjeYQfQtdSTKuD67sX6EgMcYNMMoB1q&nonce=KbYv3xJg8BtvMk3sWkpsTzi6n5L6WrcTC&data=2xDQVQEn11jZJwkKgmVwv1YTVx5g8rPPUV9c7pwbsAW9ViuoA9PibZZu687523RoPKtsn5PTwpD4G976nnERe7AHXz4U7fMxM3ruJRY5fDqmNssCWfbC3TQhw4guN79vzbYRk67tfW88dmTvakDqjKeU7MC9aMcGAnwSzpcMzoxNpceBHbqDasXhBGGck7RCW7JaASi7U5wZ4eww4EM37YTJaWnkv2va172w6Nr6hbZ3ajjKD79ToJd4ccHhvNdBc5ZP9bLF4ipp21JH6qMGV7QHysiaSDysY8N8x3qZUedMc1LNmfVmdDUDQkuCraXeWKxtNk5k7UNJiMjrwStsTdCySNnSMzq9a3oNsfRFiQ5K1dhYEoBnQqJgNk1TSioMaTG5w5rxDzZe1r7RYof4iSx59SjC5NoEH5ghRsJLFPAZWz3

Error: Unable to decrypt data

 private decryptPayload(data: Uint8Array, nonce: Uint8Array, sharedSecret?: Uint8Array): any {
    if (!sharedSecret) {
      throw new Error('Missing shared secret');
    }

    const decryptedData = nacl.box.open.after(
      data,
      nonce,
      sharedSecret,
    );

    console.log(decryptedData);

    if (!decryptedData) {
      throw new Error('Unable to decrypt data');
    }

    return JSON.parse(Buffer.from(decryptedData).toString('utf8'));
  }

public connect(): void {
    // Modify the parameters accordingly
    const params = new URLSearchParams({
      dapp_encryption_public_key: bs58.encode(this.dappKeyPair.publicKey),
      cluster: 'devnet',
      app_url: window.location.origin,
      redirect_link: window.location.origin + window.location.pathname
    });

    const url = this.buildUrl('connect', params);
    window.location.href = url;
  }

  private buildUrl(path: string, params: URLSearchParams): string {
    return `https://phantom.app/ul/v1/${path}?${params.toString()}`;
  }

  public handleDeepLink(deepLink: string): void {
    const url = new URL(deepLink);
    const params = url.searchParams;

    if (params.get('errorCode')) {
      return;
    }

    if (params.get('phantom_encryption_public_key')) {
      const sharedSecretDapp = nacl.box.before(
        bs58.decode(params.get('phantom_encryption_public_key')!),
        this.dappKeyPair.secretKey
      );

      console.log('pb',bs58.decode(params.get('phantom_encryption_public_key')!).toString());
      console.log( 'sk',this.dappKeyPair.secretKey.toString());

      const connectData = this.decryptPayload(
        bs58.decode(params.get("data")!),
        bs58.decode(params.get("nonce")!),
        sharedSecretDapp,
      );

      this.sharedSecret = sharedSecretDapp;
      this.addressSubject.next(connectData);
    }
  }

### Example

_No response_

### Steps to Reproduce

just try clicking to connect 

https://rd8l0j.csb.app/

### Phantom Version

_No response_

### Is there an existing discussion for this?

- [X] I have searched the existing discussions

[adamdelphantom]

Hello @ihor-protsenko-theraven,

Thank you for writing in!

Please ensure your redirect URI is encoded as it is in the redirect documentation..