Decrypt a JWE with a Private Key

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.SetPrivateKey, which sets the private key used to decrypt a recipient of a loaded JWE.

The file path is relative to the application's current working directory. An absolute path may also be used. Supply the path appropriate to your own environment.

bool success = false;

Chilkat.Jwe jwe = new Chilkat.Jwe();

//  Load the JWE compact serialization to be decrypted.
string jweCompact = "eyJhbGciOiJBMjU2S1ciLCJlbmMiOiJBMjU2R0NNIn0.<...>.<iv>.<ciphertext>.<tag>";
success = jwe.LoadJwe(jweCompact);
if (success == false) {
    Debug.WriteLine(jwe.LastErrorText);
    return;
}

//  The file path is relative to the application's current working directory.  An absolute path
//  may also be used.  Supply the path appropriate to your own environment.
//  Load the recipient's private key.
Chilkat.PrivateKey privKey = new Chilkat.PrivateKey();
success = privKey.LoadPemFile("qa_data/recipient_privkey.pem");
if (success == false) {
    Debug.WriteLine(privKey.LastErrorText);
    return;
}

//  Set the private key used to decrypt recipient 0.
success = jwe.SetPrivateKey(0,privKey);
if (success == false) {
    Debug.WriteLine(jwe.LastErrorText);
    return;
}

string content = jwe.Decrypt(0,"utf-8");
if (jwe.LastMethodSuccess == false) {
    Debug.WriteLine(jwe.LastErrorText);
    return;
}

Debug.WriteLine(content);