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package cz.crcs.ectester.standalone.test.base;
import javax.crypto.KeyAgreement;
import javax.crypto.SecretKey;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.interfaces.ECPrivateKey;
import java.security.interfaces.ECPublicKey;
import java.security.spec.AlgorithmParameterSpec;
import java.security.spec.ECParameterSpec;
/**
* @author Jan Jancar johny@neuromancer.sk
*/
public class KeyAgreementTestable extends StandaloneTestable<KeyAgreementTestable.KeyAgreementStage> {
private KeyAgreement ka;
private ECPrivateKey privateKey;
private ECPublicKey publicKey;
private KeyGeneratorTestable kgtPrivate;
private KeyGeneratorTestable kgtPublic;
private AlgorithmParameterSpec spec;
private String keyAlgo;
private byte[] secret;
private SecretKey derived;
public KeyAgreementTestable(KeyAgreement ka, ECPrivateKey privateKey, ECPublicKey publicKey) {
this.ka = ka;
this.privateKey = privateKey;
this.publicKey = publicKey;
}
public KeyAgreementTestable(KeyAgreement ka, ECPrivateKey privateKey, ECPublicKey publicKey, String keyAlgo) {
this(ka, privateKey, publicKey);
this.keyAlgo = keyAlgo;
}
public KeyAgreementTestable(KeyAgreement ka, ECPrivateKey privateKey, ECPublicKey publicKey, ECParameterSpec spec) {
this(ka, privateKey, publicKey);
this.spec = spec;
}
public KeyAgreementTestable(KeyAgreement ka, ECPrivateKey privateKey, ECPublicKey publicKey, ECParameterSpec spec, String keyAlgo) {
this(ka, privateKey, publicKey, spec);
this.keyAlgo = keyAlgo;
}
public KeyAgreementTestable(KeyAgreement ka, KeyGeneratorTestable kgt, ECPrivateKey privateKey, ECParameterSpec spec) {
this(ka, privateKey, null, spec);
this.kgtPublic = kgt;
}
public KeyAgreementTestable(KeyAgreement ka, KeyGeneratorTestable kgt, ECPrivateKey privateKey, ECParameterSpec spec, String keyAlgo) {
this(ka, kgt, privateKey, spec);
this.keyAlgo = keyAlgo;
}
public KeyAgreementTestable(KeyAgreement ka, ECPublicKey publicKey, KeyGeneratorTestable kgt, ECParameterSpec spec) {
this(ka, null, publicKey, spec);
this.kgtPrivate = kgt;
}
public KeyAgreementTestable(KeyAgreement ka, ECPublicKey publicKey, KeyGeneratorTestable kgt, ECParameterSpec spec, String keyAlgo) {
this(ka, publicKey, kgt, spec);
this.keyAlgo = keyAlgo;
}
public KeyAgreementTestable(KeyAgreement ka, KeyGeneratorTestable privKgt, KeyGeneratorTestable pubKgt, ECParameterSpec spec) {
this(ka, (ECPrivateKey) null, null, spec);
this.kgtPrivate = privKgt;
this.kgtPublic = pubKgt;
}
public KeyAgreementTestable(KeyAgreement ka, KeyGeneratorTestable privKgt, KeyGeneratorTestable pubKgt, ECParameterSpec spec, String keyAlgo) {
this(ka, privKgt, pubKgt, spec);
this.keyAlgo = keyAlgo;
}
public String getKeyAlgorithm() {
return keyAlgo;
}
public KeyAgreement getKa() {
return ka;
}
public ECPublicKey getPublicKey() {
return publicKey;
}
public ECPrivateKey getPrivateKey() {
return privateKey;
}
public byte[] getSecret() {
if (!hasRun) {
return null;
}
return secret;
}
public SecretKey getDerivedKey() {
if (!hasRun) {
return null;
}
return derived;
}
@Override
public void run() {
try {
stage = KeyAgreementStage.GetPrivate;
if (kgtPrivate != null) {
privateKey = (ECPrivateKey) kgtPrivate.getKeyPair().getPrivate();
}
stage = KeyAgreementStage.GetPublic;
if (kgtPublic != null) {
publicKey = (ECPublicKey) kgtPublic.getKeyPair().getPublic();
}
stage = KeyAgreementStage.Init;
try {
if (spec != null) {
ka.init(privateKey, spec);
} else {
ka.init(privateKey);
}
} catch (InvalidKeyException | InvalidAlgorithmParameterException e) {
failOnException(e);
return;
}
stage = KeyAgreementStage.DoPhase;
try {
ka.doPhase(publicKey, true);
} catch (IllegalStateException | InvalidKeyException e) {
failOnException(e);
return;
}
stage = KeyAgreementStage.GenerateSecret;
try {
if (keyAlgo != null) {
derived = ka.generateSecret(keyAlgo);
secret = derived.getEncoded();
} else {
secret = ka.generateSecret();
}
} catch (IllegalStateException | UnsupportedOperationException e) {
failOnException(e);
return;
}
ok = true;
} catch (Exception ex) {
ok = false;
error = true;
errorCause = ex;
}
hasRun = true;
}
public enum KeyAgreementStage {
GetPrivate,
GetPublic,
Init,
DoPhase,
GenerateSecret
}
}
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