How to convert a string version of public key to PublicKey object for diffie Hellman

[NeonPokharkar]

[NeonPokharkar]

I am using node js server to send it's public key to the flutter app, but it returns the value as a string, how to deal with that?

[safwanolaimat]

Hello send the publickey from nodejs server as base64 encoded and decode it in your flutter app side then use the constructor of SimplePublicKey(public key decoded as bytes , type of the algorithm you use)

final type = DartX25519().keyPairType;
final spk = SimplePublicKey(publicKeyDecoded , type);