Example usage for org.bouncycastle.jce.spec ElGamalParameterSpec ElGamalParameterSpec

Introduction

In this page you can find the example usage for org.bouncycastle.jce.spec ElGamalParameterSpec ElGamalParameterSpec.

Prototype

public ElGamalParameterSpec(BigInteger p, BigInteger g) 

Source Link

Document

Constructs a parameter set for Diffie-Hellman, using a prime modulus p and a base generator g.

Usage

From source file:ElGamalPrivatePGKey.java

License:Open Source License

public ElGamalPrivatePGKey(ElGamalPrivateKeySpec spec) {
    this.x = spec.getX();
    this.elSpec = new ElGamalParameterSpec(spec.getParams().getP(), spec.getParams().getG());
}

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From source file:ElGamalPrivatePGKey.java

License:Open Source License

public ElGamalPrivatePGKey(PrivateKeyInfo info) {
    ElGamalParameter params = new ElGamalParameter((ASN1Sequence) info.getAlgorithmId().getParameters());
    DERInteger derX = (DERInteger) info.getPrivateKey();

    this.x = derX.getValue();
    this.elSpec = new ElGamalParameterSpec(params.getP(), params.getG());
}

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From source file:ElGamalPrivatePGKey.java

License:Open Source License

public ElGamalPrivatePGKey(ElGamalPrivateKeyParameters params) {
    this.x = params.getX();
    this.elSpec = new ElGamalParameterSpec(params.getParameters().getP(), params.getParameters().getG());
}

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From source file:ElGamalPrivatePGKey.java

License:Open Source License

private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
    x = (BigInteger) in.readObject();

    this.elSpec = new ElGamalParameterSpec((BigInteger) in.readObject(), (BigInteger) in.readObject());
}

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From source file:ElGamalPublicPGKey.java

License:Open Source License

public ElGamalPublicPGKey(ElGamalPublicKeySpec spec) {
    this.y = spec.getY();
    this.elSpec = new ElGamalParameterSpec(spec.getParams().getP(), spec.getParams().getG());
}

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From source file:ElGamalPublicPGKey.java

License:Open Source License

public ElGamalPublicPGKey(ElGamalPublicKeyParameters params) {
    this.y = params.getY();
    this.elSpec = new ElGamalParameterSpec(params.getParameters().getP(), params.getParameters().getG());
}

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From source file:ElGamalPublicPGKey.java

License:Open Source License

public ElGamalPublicPGKey(SubjectPublicKeyInfo info) {
    ElGamalParameter params = new ElGamalParameter((ASN1Sequence) info.getAlgorithmId().getParameters());
    DERInteger derY = null;/*from  w  ww.j  a  v  a  2  s  .com*/

    try {
        derY = (DERInteger) info.getPublicKey();
    } catch (IOException e) {
        throw new IllegalArgumentException("invalid info structure in DSA public key");
    }

    this.y = derY.getValue();
    this.elSpec = new ElGamalParameterSpec(params.getP(), params.getG());
}

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From source file:ElGamalPublicPGKey.java

License:Open Source License

private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
    this.y = (BigInteger) in.readObject();
    this.elSpec = new ElGamalParameterSpec((BigInteger) in.readObject(), (BigInteger) in.readObject());
}

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From source file:SELSKeyGen.java

License:Open Source License

private static void LSKeyGen(String LSUserId, String LSPass, int expsec) throws Exception {
    KeyPairGenerator dsaKpg = KeyPairGenerator.getInstance("DSA", "BC");
    KeyPair dsaKp;/* ww  w.  j  ava 2 s. c  o  m*/
    KeyPairGenerator elgKpg;
    ElGamalParameterSpec elParams = new ElGamalParameterSpec(p, g);
    KeyPair elgKp;

    //   LS
    FileOutputStream out1 = new FileOutputStream(SELS_LIST_PATH + "/LS_secret.asc");
    FileOutputStream out2 = new FileOutputStream(SELS_LIST_PATH + "/LS_pub.asc");

    dsaKpg = KeyPairGenerator.getInstance("DSA", "BC");
    dsaKpg.initialize(1024);
    dsaKp = dsaKpg.generateKeyPair();

    elgKpg = KeyPairGenerator.getInstance("ELGAMAL", "BC");
    elgKpg.initialize(elParams);
    elgKp = elgKpg.generateKeyPair();
    secKeyLS = (ElGamalPrivateKey) elgKp.getPrivate();
    exportKeyPair(out1, out2, dsaKp, elgKp, LSUserId, LSPass.toCharArray(), true, expsec);
}

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From source file:SELSKeyGen.java

License:Open Source License

private static void LMKeyGen(String LMUserId, String LMPass, int expsec) throws Exception {
    KeyPairGenerator dsaKpg = KeyPairGenerator.getInstance("DSA", "BC");
    KeyPair dsaKp;/*from  www  . j  a  v  a2  s .c  o  m*/
    KeyPairGenerator elgKpg;
    ElGamalParameterSpec elParams = new ElGamalParameterSpec(p, g);
    KeyPair elgKp;

    //   LM
    FileOutputStream out1 = new FileOutputStream(SELS_LIST_PATH + "/LM_secret.asc");
    FileOutputStream out2 = new FileOutputStream(SELS_LIST_PATH + "/LM_pub.asc");

    dsaKpg = KeyPairGenerator.getInstance("DSA", "BC");
    dsaKpg.initialize(1024);
    dsaKp = dsaKpg.generateKeyPair();

    elgKpg = KeyPairGenerator.getInstance("ELGAMAL", "BC");
    elgKpg.initialize(elParams);
    elgKp = elgKpg.generateKeyPair();
    secKeyLM = (ElGamalPrivateKey) elgKp.getPrivate();
    exportKeyPair(out1, out2, dsaKp, elgKp, LMUserId, LMPass.toCharArray(), true, expsec);
}

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