本文整理汇总了Java中org.bouncycastle.crypto.params.ElGamalKeyGenerationParameters类的典型用法代码示例。如果您正苦于以下问题：Java ElGamalKeyGenerationParameters类的具体用法？Java ElGamalKeyGenerationParameters怎么用？Java ElGamalKeyGenerationParameters使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
ElGamalKeyGenerationParameters类属于org.bouncycastle.crypto.params包，在下文中一共展示了ElGamalKeyGenerationParameters类的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Java代码示例。
示例1: createAsymmetricCipherKeyPairGenerator
import org.bouncycastle.crypto.params.ElGamalKeyGenerationParameters; //导入依赖的package包/类
@Override
public AsymmetricCipherKeyPairGenerator createAsymmetricCipherKeyPairGenerator(final boolean initWithDefaults) {
final ElGamalKeyPairGenerator generator = new ElGamalKeyPairGenerator();
if (initWithDefaults) {
/*
* How certain do we want to be that the chosen primes are really primes.
* <p>
* The higher this number, the more tests are done to make sure they are primes (and not composites).
* <p>
* See: <a href="http://crypto.stackexchange.com/questions/3114/what-is-the-correct-value-for-certainty-in-rsa-key-pair-generation">What is the correct value for “certainty” in RSA key pair generation?</a>
* and
* <a href="http://crypto.stackexchange.com/questions/3126/does-a-high-exponent-compensate-for-a-low-degree-of-certainty?lq=1">Does a high exponent compensate for a low degree of certainty?</a>
*/
final int certainty = 12;
final SecureRandom random = new SecureRandom();
ElGamalParametersGenerator pGen = new ElGamalParametersGenerator();
pGen.init(4096, certainty, random);
ElGamalParameters elGamalParameters = pGen.generateParameters();
generator.init(new ElGamalKeyGenerationParameters(random, elGamalParameters));
}
return generator;
}
开发者ID:subshare，项目名称:subshare，代码行数:26，代码来源:ElGamalKeyPairGeneratorFactory.java
示例2: createElGamalKeyGenerationParameters
import org.bouncycastle.crypto.params.ElGamalKeyGenerationParameters; //导入依赖的package包/类
private ElGamalKeyGenerationParameters createElGamalKeyGenerationParameters(final CreatePgpKeyParam createPgpKeyParam) {
/*
* How certain do we want to be that the chosen primes are really primes.
* <p>
* The higher this number, the more tests are done to make sure they are primes (and not composites).
* <p>
* See: <a href="http://crypto.stackexchange.com/questions/3114/what-is-the-correct-value-for-certainty-in-rsa-key-pair-generation">What is the correct value for “certainty” in RSA key pair generation?</a>
* and
* <a href="http://crypto.stackexchange.com/questions/3126/does-a-high-exponent-compensate-for-a-low-degree-of-certainty?lq=1">Does a high exponent compensate for a low degree of certainty?</a>
*/
final int certainty = 8; // 12 takes ages - and DSA+El-Gamal is anyway a bad idea and discouraged. Reducing this to make it bearable.
final SecureRandom random = getSecureRandom();
ElGamalParametersGenerator pGen = new ElGamalParametersGenerator();
pGen.init(createPgpKeyParam.getStrength(), certainty, random);
ElGamalParameters elGamalParameters = pGen.generateParameters();
// Maybe we should generate our "DH safe primes" only once and store them somewhere? Or maybe we should provide a long list
// of them in the resources? DHParametersHelper.generateSafePrimes(size, certainty, random); takes really really very long.
// BUT BEWARE: Attacks on El Gamal can re-use expensively calculated stuff, if p (one of the "safe primes) is the same.
// However, it is still not *so* easy. Hmmm... don't know. Security is really important here.
return new ElGamalKeyGenerationParameters(random, elGamalParameters);
}
开发者ID:subshare，项目名称:subshare，代码行数:26，代码来源:BcWithLocalGnuPgPgp.java
示例3: GenerateKeys
import org.bouncycastle.crypto.params.ElGamalKeyGenerationParameters; //导入依赖的package包/类
/**
* This method is used to generate Public Key and Private Key
* @param params
*/
private void GenerateKeys(ElGamalParameters params, String password){
ElGamalKeyGenerationParameters elGP = new ElGamalKeyGenerationParameters(random,params);
ElGamalKeyPairGenerator KeyPair = new ElGamalKeyPairGenerator();
KeyPair.init(elGP);
AsymmetricCipherKeyPair cipher1 = KeyPair.generateKeyPair();
publicKey = ((ElGamalPublicKeyParameters) cipher1.getPublic()).getY();
privateKey = ((ElGamalPrivateKeyParameters)cipher1.getPrivate()).getX();
wellGenerated = true;
encryptPrivateKey(password);
}
开发者ID:pja35，项目名称:p2pEngine，代码行数:15，代码来源:AsymKeysImpl.java
示例4: init
import org.bouncycastle.crypto.params.ElGamalKeyGenerationParameters; //导入依赖的package包/类
public void init(
KeyGenerationParameters param)
{
this.param = (ElGamalKeyGenerationParameters)param;
}
开发者ID:Appdome，项目名称:ipack，代码行数:6，代码来源:ElGamalKeyPairGenerator.java
示例5: generateTest
import org.bouncycastle.crypto.params.ElGamalKeyGenerationParameters; //导入依赖的package包/类
public void generateTest()
throws Exception
{
char[] passPhrase = "hello".toCharArray();
DSAParametersGenerator dsaPGen = new DSAParametersGenerator();
dsaPGen.init(512, 10, new SecureRandom());
DSAKeyPairGenerator dsaKpg = new DSAKeyPairGenerator();
dsaKpg.init(new DSAKeyGenerationParameters(new SecureRandom(), dsaPGen.generateParameters()));
//
// this takes a while as the key generator has to generate some DSA params
// before it generates the key.
//
AsymmetricCipherKeyPair dsaKp = dsaKpg.generateKeyPair();
ElGamalKeyPairGenerator elgKpg = new ElGamalKeyPairGenerator();
BigInteger g = new BigInteger("153d5d6172adb43045b68ae8e1de1070b6137005686d29d3d73a7749199681ee5b212c9b96bfdcfa5b20cd5e3fd2044895d609cf9b410b7a0f12ca1cb9a428cc", 16);
BigInteger p = new BigInteger("9494fec095f3b85ee286542b3836fc81a5dd0a0349b4c239dd38744d488cf8e31db8bcb7d33b41abb9e5a33cca9144b1cef332c94bf0573bf047a3aca98cdf3b", 16);
ElGamalParameters elParams = new ElGamalParameters(p, g);
elgKpg.init(new ElGamalKeyGenerationParameters(new SecureRandom(), elParams));
//
// this is quicker because we are using pregenerated parameters.
//
AsymmetricCipherKeyPair elgKp = elgKpg.generateKeyPair();
PGPKeyPair dsaKeyPair = new BcPGPKeyPair(PGPPublicKey.DSA, dsaKp, new Date());
PGPKeyPair elgKeyPair = new BcPGPKeyPair(PGPPublicKey.ELGAMAL_ENCRYPT, elgKp, new Date());
PGPKeyRingGenerator keyRingGen = new PGPKeyRingGenerator(PGPSignature.POSITIVE_CERTIFICATION, dsaKeyPair,
"test", null, null, null, new BcPGPContentSignerBuilder(PGPPublicKey.DSA, HashAlgorithmTags.SHA1), new BcPBESecretKeyEncryptorBuilder(PGPEncryptedData.AES_256).build(passPhrase));
keyRingGen.addSubKey(elgKeyPair);
PGPSecretKeyRing keyRing = keyRingGen.generateSecretKeyRing();
keyRing.getSecretKey().extractPrivateKey(new BcPBESecretKeyDecryptorBuilder(new BcPGPDigestCalculatorProvider()).build(passPhrase));
PGPPublicKeyRing pubRing = keyRingGen.generatePublicKeyRing();
PGPPublicKey vKey = null;
PGPPublicKey sKey = null;
Iterator it = pubRing.getPublicKeys();
while (it.hasNext())
{
PGPPublicKey pk = (PGPPublicKey)it.next();
if (pk.isMasterKey())
{
vKey = pk;
}
else
{
sKey = pk;
}
}
Iterator sIt = sKey.getSignatures();
while (sIt.hasNext())
{
PGPSignature sig = (PGPSignature)sIt.next();
if (sig.getKeyID() == vKey.getKeyID()
&& sig.getSignatureType() == PGPSignature.SUBKEY_BINDING)
{
sig.init(new BcPGPContentVerifierBuilderProvider(), vKey);
if (!sig.verifyCertification(vKey, sKey))
{
fail("failed to verify sub-key signature.");
}
}
}
}
开发者ID:ttt43ttt，项目名称:gwt-crypto，代码行数:79，代码来源:BcPGPKeyRingTest.java
示例6: generateSha1Test
import org.bouncycastle.crypto.params.ElGamalKeyGenerationParameters; //导入依赖的package包/类
public void generateSha1Test()
throws Exception
{
char[] passPhrase = "hello".toCharArray();
DSAParametersGenerator dsaPGen = new DSAParametersGenerator();
dsaPGen.init(512, 10, new SecureRandom());
DSAKeyPairGenerator dsaKpg = new DSAKeyPairGenerator();
dsaKpg.init(new DSAKeyGenerationParameters(new SecureRandom(), dsaPGen.generateParameters()));
//
// this takes a while as the key generator has to generate some DSA params
// before it generates the key.
//
AsymmetricCipherKeyPair dsaKp = dsaKpg.generateKeyPair();
ElGamalKeyPairGenerator elgKpg = new ElGamalKeyPairGenerator();
BigInteger g = new BigInteger("153d5d6172adb43045b68ae8e1de1070b6137005686d29d3d73a7749199681ee5b212c9b96bfdcfa5b20cd5e3fd2044895d609cf9b410b7a0f12ca1cb9a428cc", 16);
BigInteger p = new BigInteger("9494fec095f3b85ee286542b3836fc81a5dd0a0349b4c239dd38744d488cf8e31db8bcb7d33b41abb9e5a33cca9144b1cef332c94bf0573bf047a3aca98cdf3b", 16);
ElGamalParameters elParams = new ElGamalParameters(p, g);
elgKpg.init(new ElGamalKeyGenerationParameters(new SecureRandom(), elParams));
//
// this is quicker because we are using pregenerated parameters.
//
AsymmetricCipherKeyPair elgKp = elgKpg.generateKeyPair();
PGPKeyPair dsaKeyPair = new BcPGPKeyPair(PGPPublicKey.DSA, dsaKp, new Date());
PGPKeyPair elgKeyPair = new BcPGPKeyPair(PGPPublicKey.ELGAMAL_ENCRYPT, elgKp, new Date());
PGPDigestCalculator chkSumCalc = new BcPGPDigestCalculatorProvider().get(HashAlgorithmTags.SHA1);
PGPKeyRingGenerator keyRingGen = new PGPKeyRingGenerator(PGPSignature.POSITIVE_CERTIFICATION, dsaKeyPair,
"test", chkSumCalc, null, null, new BcPGPContentSignerBuilder(PGPPublicKey.DSA, HashAlgorithmTags.SHA1), new BcPBESecretKeyEncryptorBuilder(PGPEncryptedData.AES_256).build(passPhrase));
keyRingGen.addSubKey(elgKeyPair);
PGPSecretKeyRing keyRing = keyRingGen.generateSecretKeyRing();
keyRing.getSecretKey().extractPrivateKey(new BcPBESecretKeyDecryptorBuilder(new BcPGPDigestCalculatorProvider()).build(passPhrase));
PGPPublicKeyRing pubRing = keyRingGen.generatePublicKeyRing();
PGPPublicKey vKey = null;
PGPPublicKey sKey = null;
Iterator it = pubRing.getPublicKeys();
while (it.hasNext())
{
PGPPublicKey pk = (PGPPublicKey)it.next();
if (pk.isMasterKey())
{
vKey = pk;
}
else
{
sKey = pk;
}
}
Iterator sIt = sKey.getSignatures();
while (sIt.hasNext())
{
PGPSignature sig = (PGPSignature)sIt.next();
if (sig.getKeyID() == vKey.getKeyID()
&& sig.getSignatureType() == PGPSignature.SUBKEY_BINDING)
{
sig.init(new BcPGPContentVerifierBuilderProvider(), vKey);
if (!sig.verifyCertification(vKey, sKey))
{
fail("failed to verify sub-key signature.");
}
}
}
}
开发者ID:ttt43ttt，项目名称:gwt-crypto，代码行数:79，代码来源:BcPGPKeyRingTest.java
示例7: testGeneration
import org.bouncycastle.crypto.params.ElGamalKeyGenerationParameters; //导入依赖的package包/类
/**
* this test is can take quiet a while
*
* @param size size of key in bits.
*/
private void testGeneration(
int size)
{
ElGamalParametersGenerator pGen = new ElGamalParametersGenerator();
pGen.init(size, 10, new SecureRandom());
ElGamalParameters elParams = pGen.generateParameters();
if (elParams.getL() != 0)
{
fail("ElGamalParametersGenerator failed to set L to 0 in generated ElGamalParameters");
}
ElGamalKeyGenerationParameters params = new ElGamalKeyGenerationParameters(new SecureRandom(), elParams);
ElGamalKeyPairGenerator kpGen = new ElGamalKeyPairGenerator();
kpGen.init(params);
//
// generate first pair
//
AsymmetricCipherKeyPair pair = kpGen.generateKeyPair();
ElGamalPublicKeyParameters pu = (ElGamalPublicKeyParameters)pair.getPublic();
ElGamalPrivateKeyParameters pv = (ElGamalPrivateKeyParameters)pair.getPrivate();
ElGamalEngine e = new ElGamalEngine();
e.init(true, new ParametersWithRandom(pu, new SecureRandom()));
byte[] message = Hex.decode("5468697320697320612074657374");
byte[] pText = message;
byte[] cText = e.processBlock(pText, 0, pText.length);
e.init(false, pv);
pText = e.processBlock(cText, 0, cText.length);
if (!Arrays.areEqual(message, pText))
{
fail("generation test failed");
}
}
开发者ID:ttt43ttt，项目名称:gwt-crypto，代码行数:52，代码来源:ElGamalTest.java
示例8: generate
import org.bouncycastle.crypto.params.ElGamalKeyGenerationParameters; //导入依赖的package包/类
@Override
public AsymmetricCipherKeyPair generate(SecureRandom random) {
final ElGamalKeyPairGenerator generator = new ElGamalKeyPairGenerator();
generator.init(new ElGamalKeyGenerationParameters(random, parameters));
return generator.generateKeyPair();
}
开发者ID:codahale，项目名称:gpgj，代码行数:7，代码来源:ElgamalKeyGenerator.java
注：本文中的org.bouncycastle.crypto.params.ElGamalKeyGenerationParameters类示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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