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(.NET Core C#) Load ECC Private Key from JWK Format (JSON Web Key)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.
// Note: This example requires Chilkat v9.5.0.66 or later. bool success; // First build a JWK sample to load.. Chilkat.JsonObject json = new Chilkat.JsonObject(); json.UpdateString("kty","EC"); json.UpdateString("crv","P-256"); json.UpdateString("x","oBUyo8CQAFPeYPvv78ylh5MwFZjTCLQeb042TjiMJxE"); json.UpdateString("y","vvQyxZkUjJQUPU_0bCy3Pj5qQdfu8jwEfqEeYGZ95CU"); json.UpdateString("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.EmitCompact = false; // Show the JWK string to be loaded: string jwkStr = json.Emit(); Chilkat.PrivateKey privKey = new Chilkat.PrivateKey(); success = privKey.LoadJwk(jwkStr); if (success != true) { Debug.WriteLine(privKey.LastErrorText); 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.. Debug.WriteLine(privKey.GetXml()); // XML output: // <ECCKeyValue curve="secp256r1">MHcCAQEEIBG1c3z52T8XwMsahGVdOZWgKCQJfv+l7djuJjgetdbDoAoGCCqGSM49AwEHoEQDQgAEoBUyo8CQAFPeYPvv78ylh5MwFZjTCLQeb042TjiMJxG+9DLFmRSMlBQ9T/RsLLc+PmpB1+7yPAR+oR5gZn3kJQ==</ECCKeyValue> Debug.WriteLine(privKey.GetPkcs8EncryptedPem("secret")); // PEM output // // -----BEGIN ENCRYPTED PRIVATE KEY----- // MIHFMEAGCSqGSIb3DQEFDTAzMBsGCSqGSIb3DQEFDDAOBAiku9rUjavLQQICCAAw // FAYIKoZIhvcNAwcECGsl/5nLai+JBIGAVIqKAdfcRQNLl1t3x+n8OZ92d1H+qgjS // Hs83wn2joJK4nlqy+rzosZxQ3e8NTJQyUEWZWcjqMj/N0phS3QWtcD/qbda5oEcv // QgtU60cZ4ql3truefAmlZz2PdpOfqtYhxlvjJQxnyojn4ntj69OwLOt9SZbaBQQi // KUL8KXT4Pq8= // -----END ENCRYPTED PRIVATE KEY----- |
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