use of com.ingrian.internal.kmip.api.crypto.KMIPCryptoResult in project CipherTrust_Application_Protection by thalescpl-io.
the class KMIPEncryptAndDecrypt method main.
public static void main(String[] args) {
if (args.length < 6) {
checkUsage();
}
String certAlias = args[0];
String certPassword = args[1];
String keyName = args[2];
int tagLength = Integer.parseInt(args[3]);
/**
* Note: For AES-GCM algorithm, same combination of nonce (IV) and key must not be reused
* during encryption/decryption operations.
*/
String iv = args[4];
String data = args[5];
KMIPSession session = null;
try {
// opening a valid kmip session
session = KMIPSession.getSession(new NAEClientCertificate(certAlias, certPassword.toCharArray()));
// taking instance for GCM. Check KMIPCipher Javadoc for rest of algorithm
KMIPCipher cipher = KMIPCipher.getInstance("AES/GCM/NoPadding");
// creating a spec for GCM. Check KMIPGCMSpec Javadoc for valid values
KMIPGCMSpec spec = new KMIPGCMSpec(tagLength, iv.getBytes());
// initializing kmip cipher with the given key name, spec and session
// in encrypt mode. Can pass UID in place of keyname. Check other
// overloaded methods.
cipher.init(KMIPCipher.ENCRYPT_MODE, keyName, spec, session);
// Perform cipher operation and return the result in KMIPCryptoResult
// object. This object also consist of IV in case iv is not passed
// in other algos.
KMIPCryptoResult result = cipher.doFinal(data.getBytes());
// encrypted result in hex
System.out.println(IngrianProvider.byteArray2Hex(result.getData()));
// taking GCM cipher instance for decryption. Check KMIPCipher Javadoc
// for rest of algorithm
KMIPCipher deCipher = KMIPCipher.getInstance("AES/GCM/NoPadding");
// initializing kmip cipher with the given key name, spec and session
// in decrypt mode. Can pass UID in place of keyname in other
// overloaded methods.
deCipher.init(KMIPCipher.DECRYPT_MODE, keyName, spec, session);
// returns decrypted result
KMIPCryptoResult decResult = deCipher.doFinal(result.getData());
// printing decryption result.
System.out.println(new String(decResult.getData()));
} catch (Exception e) {
e.printStackTrace();
} finally {
session.closeSession();
}
}
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