diff options
Diffstat (limited to 'prov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParameterGeneratorSpi.java')
-rw-r--r-- | prov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParameterGeneratorSpi.java | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/prov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParameterGeneratorSpi.java b/prov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParameterGeneratorSpi.java deleted file mode 100644 index 9cb9c87d..00000000 --- a/prov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParameterGeneratorSpi.java +++ /dev/null @@ -1,76 +0,0 @@ -package org.bouncycastle.jcajce.provider.asymmetric.elgamal; - -import java.security.AlgorithmParameters; -import java.security.InvalidAlgorithmParameterException; -import java.security.SecureRandom; -import java.security.spec.AlgorithmParameterSpec; - -import javax.crypto.spec.DHGenParameterSpec; -import javax.crypto.spec.DHParameterSpec; - -import org.bouncycastle.crypto.generators.ElGamalParametersGenerator; -import org.bouncycastle.crypto.params.ElGamalParameters; -import org.bouncycastle.jce.provider.BouncyCastleProvider; - -public class AlgorithmParameterGeneratorSpi - extends java.security.AlgorithmParameterGeneratorSpi -{ - protected SecureRandom random; - protected int strength = 1024; - - private int l = 0; - - protected void engineInit( - int strength, - SecureRandom random) - { - this.strength = strength; - this.random = random; - } - - protected void engineInit( - AlgorithmParameterSpec genParamSpec, - SecureRandom random) - throws InvalidAlgorithmParameterException - { - if (!(genParamSpec instanceof DHGenParameterSpec)) - { - throw new InvalidAlgorithmParameterException("DH parameter generator requires a DHGenParameterSpec for initialisation"); - } - DHGenParameterSpec spec = (DHGenParameterSpec)genParamSpec; - - this.strength = spec.getPrimeSize(); - this.l = spec.getExponentSize(); - this.random = random; - } - - protected AlgorithmParameters engineGenerateParameters() - { - ElGamalParametersGenerator pGen = new ElGamalParametersGenerator(); - - if (random != null) - { - pGen.init(strength, 20, random); - } - else - { - pGen.init(strength, 20, new SecureRandom()); - } - - ElGamalParameters p = pGen.generateParameters(); - - AlgorithmParameters params; - - try - { - params = AlgorithmParameters.getInstance("ElGamal", BouncyCastleProvider.PROVIDER_NAME); - params.init(new DHParameterSpec(p.getP(), p.getG(), l)); - } - catch (Exception e) - { - throw new RuntimeException(e.getMessage()); - } - - return params; - } -} |