Rust

Load ECC Private Key from JWK Format (JSON Web Key)

See more ECC Examples

Demonstrates how to load an ECC private key from JWK (JSON Web Key) format.

Note: This example requires Chilkat v9.5.0.66 or later.

Rust

// Note: This example requires Chilkat v9.5.0.66 or later.

// First build a JWK sample to load..
let json = chilkat::JsonObject::new();
let _ = json.update_string("kty", "EC");
let _ = json.update_string("crv", "P-256");
let _ = json.update_string("x", "oBUyo8CQAFPeYPvv78ylh5MwFZjTCLQeb042TjiMJxE");
let _ = json.update_string("y", "vvQyxZkUjJQUPU_0bCy3Pj5qQdfu8jwEfqEeYGZ95CU");
let _ = json.update_string("d", "EbVzfPnZPxfAyxqEZV05laAoJAl-_6Xt2O4mOB611sM");

// The JSON contains the following:
// { 
//   "kty": "EC",
//   "crv": "P-256",
//   "x": "oBUyo8CQAFPeYPvv78ylh5MwFZjTCLQeb042TjiMJxE",
//   "y": "vvQyxZkUjJQUPU_0bCy3Pj5qQdfu8jwEfqEeYGZ95CU",
//   "d": "EbVzfPnZPxfAyxqEZV05laAoJAl-_6Xt2O4mOB611sM"
// }

// Note: The JSON can contain other members, such as "use", "kid", or anything else.  These will be ignored.
json.set_emit_compact(false);

// Show the JWK string to be loaded:
let jwk_str = json.emit().unwrap_or_default();

let priv_key = chilkat::PrivateKey::new();
if priv_key.load_jwk(&jwk_str).is_err() {
    println!("{}", priv_key.last_error_text());
    return;
}

// OK.. the JWK is loaded.  It can be used in whatever way desired...

// The key can be retrieved in any other format, such as XML or PEM..
println!("{}", priv_key.get_xml().unwrap_or_default());

// XML output:
// <ECCKeyValue curve="secp256r1">MHcCAQEEIBG1c3z52T8XwMsahGVdOZWgKCQJfv+l7djuJjgetdbDoAoGCCqGSM49AwEHoEQDQgAEoBUyo8CQAFPeYPvv78ylh5MwFZjTCLQeb042TjiMJxG+9DLFmRSMlBQ9T/RsLLc+PmpB1+7yPAR+oR5gZn3kJQ==</ECCKeyValue>

println!("{}", priv_key.get_pkcs8_encrypted_pem("secret").unwrap_or_default());

// PEM output
// 
// -----BEGIN ENCRYPTED PRIVATE KEY-----
// MIHFMEAGCSqGSIb3DQEFDTAzMBsGCSqGSIb3DQEFDDAOBAiku9rUjavLQQICCAAw
// FAYIKoZIhvcNAwcECGsl/5nLai+JBIGAVIqKAdfcRQNLl1t3x+n8OZ92d1H+qgjS
// Hs83wn2joJK4nlqy+rzosZxQ3e8NTJQyUEWZWcjqMj/N0phS3QWtcD/qbda5oEcv
// QgtU60cZ4ql3truefAmlZz2PdpOfqtYhxlvjJQxnyojn4ntj69OwLOt9SZbaBQQi
// KUL8KXT4Pq8=
// -----END ENCRYPTED PRIVATE KEY-----