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.

let jwe = chilkat::Jwe::new();

// Load the JWE compact serialization to be decrypted.
let jwe_compact = "eyJhbGciOiJBMjU2S1ciLCJlbmMiOiJBMjU2R0NNIn0.<...>.<iv>.<ciphertext>.<tag>".to_string();
if jwe.load_jwe(&jwe_compact).is_err() {
    println!("{}", jwe.last_error_text());
    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.
let priv_key = chilkat::PrivateKey::new();
if priv_key.load_pem_file("qa_data/recipient_privkey.pem").is_err() {
    println!("{}", priv_key.last_error_text());
    return;
}

// Set the private key used to decrypt recipient 0.
if jwe.set_private_key(0, &priv_key).is_err() {
    println!("{}", jwe.last_error_text());
    return;
}

let Ok(content) = jwe.decrypt(0, "utf-8") else {
    println!("{}", jwe.last_error_text());
    return;
};

println!("{}", content);