Example usage for org.bouncycastle.pqc.jcajce.spec SPHINCS256KeyGenParameterSpec SHA512_256

Introduction

In this page you can find the example usage for org.bouncycastle.pqc.jcajce.spec SPHINCS256KeyGenParameterSpec SHA512_256.

Prototype

String SHA512_256

To view the source code for org.bouncycastle.pqc.jcajce.spec SPHINCS256KeyGenParameterSpec SHA512_256.

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Document

Use SHA512-256 for the tree generation function.

Usage

From source file:com.distrimind.util.crypto.JavaNativeKeyPairGenerator.java

License:Open Source License

@Override
public void initialize(short _keySize, long expirationTime, AbstractSecureRandom _random)
        throws InvalidAlgorithmParameterException {
    this.keySizeBits = _keySize;
    this.expirationTime = expirationTime;
    if (signatureType != null && signatureType.getKeyGeneratorAlgorithmName().equals(
            ASymmetricAuthenticatedSignatureType.BCPQC_SPHINCS256_SHA3_512.getKeyGeneratorAlgorithmName())) {
        this.keySizeBits = signatureType.getDefaultKeySize();
        keyPairGenerator.initialize(new SPHINCS256KeyGenParameterSpec(SPHINCS256KeyGenParameterSpec.SHA3_256),
                _random.getJavaNativeSecureRandom());
    } else if (signatureType != null && signatureType.getKeyGeneratorAlgorithmName()
            .equals(ASymmetricAuthenticatedSignatureType.BCPQC_SPHINCS256_SHA2_512_256
                    .getKeyGeneratorAlgorithmName())) {
        this.keySizeBits = signatureType.getDefaultKeySize();
        keyPairGenerator.initialize(new SPHINCS256KeyGenParameterSpec(SPHINCS256KeyGenParameterSpec.SHA512_256),
                _random.getJavaNativeSecureRandom());
    } else if (signatureType == null || signatureType.getCurveName() == null)
        keyPairGenerator.initialize(new RSAKeyGenParameterSpec(_keySize, RSAKeyGenParameterSpec.F4),
                _random.getJavaNativeSecureRandom());
    else {/*from  ww  w  .j av  a 2s  .c  o  m*/
        switch (signatureType.getCurveName()) {
        case "P-256":
        case "P-384":
        case "P-521":
            this.keySizeBits = signatureType.getDefaultKeySize();
            keyPairGenerator.initialize(new ECGenParameterSpec(signatureType.getCurveName()),
                    _random.getJavaNativeSecureRandom());
            break;
        case "curve25519":
            this.keySizeBits = signatureType.getDefaultKeySize();

            keyPairGenerator.initialize(ASymmetricEncryptionType.getCurve25519(),
                    _random.getJavaNativeSecureRandom());
            break;
        case "Ed25519":
        case "Ed448":
        case "X25519":
        case "X448":
            keyPairGenerator.initialize(signatureType.getDefaultKeySize(), _random.getJavaNativeSecureRandom());
            break;
        //keyPairGenerator.initialize(getXDHAlgorithmParameterSpec(signatureType.getCurveName()));
        //break;

        /*case "M221":
        case "M383":
        case "M511":
        case "curve41417":
           this.keySizeBits = signatureType.getDefaultKeySize();
           X9ECParameters ecP = CustomNamedCurves.getByName(signatureType.getCurveName());
           keyPairGenerator.initialize(new org.bouncycastle.jce.spec.ECParameterSpec(ecP.getCurve(), ecP.getG(),
             ecP.getN(), ecP.getH(), ecP.getSeed()), _random.getJavaNativeSecureRandom());
           break;*/
        default:
            throw new InternalError();

        }
    }
    /*this.keySizeBits=signatureType.getDefaultKeySize();
    keyPairGenerator.initialize(new ECGenParameterSpec(signatureType.getCurveName()), _random.getJavaNativeSecureRandom());
    if (signatureType!=null && (signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_FIPS_SHA256withECDSA_P_256.getKeyGeneratorAlgorithmName())
    || signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_FIPS_SHA384withECDSA_P_384.getKeyGeneratorAlgorithmName())
          || signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_FIPS_SHA512withECDSA_P_521.getKeyGeneratorAlgorithmName())))
    {
       if (_keySize<256)
       {
    this.keySizeBits=224;
    keyPairGenerator.initialize(new ECGenParameterSpec("P-224"), _random.getJavaNativeSecureRandom());
       }
       else if (_keySize<(384-256)/2)
       {
    this.keySizeBits=256;
    keyPairGenerator.initialize(new ECGenParameterSpec("P-256"), _random.getJavaNativeSecureRandom());
       }
       else if (_keySize<(521-384)/2)
       {
    this.keySizeBits=384;
    keyPairGenerator.initialize(new ECGenParameterSpec("P-384"), _random.getJavaNativeSecureRandom());
       }
       else
       {
    this.keySizeBits=521;
    keyPairGenerator.initialize(new ECGenParameterSpec("P-521"), _random.getJavaNativeSecureRandom());
       }
    }
    else if (signatureType!=null && (signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_SHA256withECDSA_CURVE_25519.getKeyGeneratorAlgorithmName())
    || signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_SHA384withECDSA_CURVE_25519.getKeyGeneratorAlgorithmName())
    || signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_SHA512withECDSA_CURVE_25519.getKeyGeneratorAlgorithmName())))
    {
       this.keySizeBits=signatureType.getDefaultKeySize();
            
       keyPairGenerator.initialize(ASymmetricEncryptionType.getCurve25519(), _random.getJavaNativeSecureRandom());
    }
    else if (signatureType!=null && (signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_SHA256withECDSA_CURVE_M_221.getKeyGeneratorAlgorithmName())
    || signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_SHA384withECDSA_CURVE_M_221.getKeyGeneratorAlgorithmName())
    || signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_SHA512withECDSA_CURVE_M_221.getKeyGeneratorAlgorithmName())))
    {
            
       this.keySizeBits=signatureType.getDefaultKeySize();
       X9ECParameters ecP = CustomNamedCurves.getByName("M-221");
       keyPairGenerator.initialize(new org.bouncycastle.jce.spec.ECParameterSpec(ecP.getCurve(), ecP.getG(),
       ecP.getN(), ecP.getH(), ecP.getSeed()), _random.getJavaNativeSecureRandom());
    }
    else if (signatureType!=null && (signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_SHA256withECDSA_CURVE_M_383.getKeyGeneratorAlgorithmName())
    || signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_SHA384withECDSA_CURVE_M_383.getKeyGeneratorAlgorithmName())
    || signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_SHA512withECDSA_CURVE_M_383.getKeyGeneratorAlgorithmName())))
    {
       this.keySizeBits=signatureType.getDefaultKeySize();
       X9ECParameters ecP = CustomNamedCurves.getByName("M-383");
       keyPairGenerator.initialize(new org.bouncycastle.jce.spec.ECParameterSpec(ecP.getCurve(), ecP.getG(),
       ecP.getN(), ecP.getH(), ecP.getSeed()), _random.getJavaNativeSecureRandom());
    }
    else if (signatureType!=null && (signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_SHA256withECDSA_CURVE_M_511.getKeyGeneratorAlgorithmName())
    || signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_SHA384withECDSA_CURVE_M_511.getKeyGeneratorAlgorithmName())
    || signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_SHA512withECDSA_CURVE_M_511.getKeyGeneratorAlgorithmName())))
    {
       this.keySizeBits=signatureType.getDefaultKeySize();
       X9ECParameters ecP = CustomNamedCurves.getByName("M-511");
       keyPairGenerator.initialize(new org.bouncycastle.jce.spec.ECParameterSpec(ecP.getCurve(), ecP.getG(),
       ecP.getN(), ecP.getH(), ecP.getSeed()), _random.getJavaNativeSecureRandom());
    }
    else if (signatureType!=null && (signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_SHA256withECDSA_CURVE_41417.getKeyGeneratorAlgorithmName())
    || signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_SHA384withECDSA_CURVE_41417.getKeyGeneratorAlgorithmName())
    || signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BC_SHA512withECDSA_CURVE_41417.getKeyGeneratorAlgorithmName())))
    {
       this.keySizeBits=signatureType.getDefaultKeySize();
       X9ECParameters ecP = CustomNamedCurves.getByName("curve41417");
       keyPairGenerator.initialize(new org.bouncycastle.jce.spec.ECParameterSpec(ecP.getCurve(), ecP.getG(),
       ecP.getN(), ecP.getH(), ecP.getSeed()), _random.getJavaNativeSecureRandom());
    }
    else if (signatureType!=null && signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BCPQC_SPHINCS256_SHA3_512.getKeyGeneratorAlgorithmName()))
    {
       this.keySizeBits=signatureType.getDefaultKeySize();
       keyPairGenerator.initialize(new SPHINCS256KeyGenParameterSpec(SPHINCS256KeyGenParameterSpec.SHA3_256), _random.getJavaNativeSecureRandom());
    }
    else if (signatureType!=null && signatureType.getKeyGeneratorAlgorithmName().equals(ASymmetricAuthenticatedSignatureType.BCPQC_SPHINCS256_SHA2_512_256.getKeyGeneratorAlgorithmName()))
    {
       this.keySizeBits=signatureType.getDefaultKeySize();
       keyPairGenerator.initialize(new SPHINCS256KeyGenParameterSpec(SPHINCS256KeyGenParameterSpec.SHA512_256), _random.getJavaNativeSecureRandom());
    }
    else
       keyPairGenerator.initialize(new RSAKeyGenParameterSpec(_keySize, RSAKeyGenParameterSpec.F4), _random.getJavaNativeSecureRandom());*/

}

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