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(PHP ActiveX) 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.
<?php // Note: This example requires Chilkat v9.5.0.66 or later. // First build a JWK sample to load.. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.JsonObject') $json = new COM("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 = 0; // Show the JWK string to be loaded: $jwkStr = $json->emit(); // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.PrivateKey') $privKey = new COM("Chilkat.PrivateKey"); $success = $privKey->LoadJwk($jwkStr); if ($success != 1) { print $privKey->LastErrorText . "\n"; exit; } // 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.. print $privKey->getXml() . "\n"; // XML output: // <ECCKeyValue curve="secp256r1">MHcCAQEEIBG1c3z52T8XwMsahGVdOZWgKCQJfv+l7djuJjgetdbDoAoGCCqGSM49AwEHoEQDQgAEoBUyo8CQAFPeYPvv78ylh5MwFZjTCLQeb042TjiMJxG+9DLFmRSMlBQ9T/RsLLc+PmpB1+7yPAR+oR5gZn3kJQ==</ECCKeyValue> print $privKey->getPkcs8EncryptedPem('secret') . "\n"; // 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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