jdkkeyfactory.java

来自「bouncycastle 是一个JAVA安全提供者」· Java 代码 · 共 690 行 · 第 1/2 页

                {
                    return JDKKeyFactory.createPublicKeyFromDERStream(
                                new ByteArrayInputStream(((X509EncodedKeySpec)keySpec).getEncoded()));
                }
                catch (Exception e)
                {
                    throw new InvalidKeySpecException(e.toString());
                }
            }
            else if (keySpec instanceof RSAPublicKeySpec)
            {
                return new JCERSAPublicKey((RSAPublicKeySpec)keySpec);
            }
    
            throw new InvalidKeySpecException("Unknown KeySpec type: " + keySpec.getClass().getName());
        }
    }

    public static class DH
        extends JDKKeyFactory
    {
        public DH()
        {
        }

        protected PrivateKey engineGeneratePrivate(
            KeySpec    keySpec)
            throws InvalidKeySpecException
        {
            if (keySpec instanceof PKCS8EncodedKeySpec)
            {
                try
                {
                    return JDKKeyFactory.createPrivateKeyFromDERStream(
                                new ByteArrayInputStream(((PKCS8EncodedKeySpec)keySpec).getEncoded()));
                }
                catch (Exception e)
                {
                    throw new InvalidKeySpecException(e.toString());
                }
            }
            else if (keySpec instanceof DHPrivateKeySpec)
            {
                return new JCEDHPrivateKey((DHPrivateKeySpec)keySpec);
            }
    
            throw new InvalidKeySpecException("Unknown KeySpec type: " + keySpec.getClass().getName());
        }
    
        protected PublicKey engineGeneratePublic(
            KeySpec    keySpec)
            throws InvalidKeySpecException
        {
            if (keySpec instanceof X509EncodedKeySpec)
            {
                try
                {
                    return JDKKeyFactory.createPublicKeyFromDERStream(
                                new ByteArrayInputStream(((X509EncodedKeySpec)keySpec).getEncoded()));
                }
                catch (Exception e)
                {
                    throw new InvalidKeySpecException(e.toString());
                }
            }
            else if (keySpec instanceof DHPublicKeySpec)
            {
                return new JCEDHPublicKey((DHPublicKeySpec)keySpec);
            }
    
            throw new InvalidKeySpecException("Unknown KeySpec type: " + keySpec.getClass().getName());
        }
    }

    public static class DSA
        extends JDKKeyFactory
    {
        public DSA()
        {
        }

        protected PrivateKey engineGeneratePrivate(
            KeySpec    keySpec)
            throws InvalidKeySpecException
        {
            if (keySpec instanceof PKCS8EncodedKeySpec)
            {
                try
                {
                    return JDKKeyFactory.createPrivateKeyFromDERStream(
                                new ByteArrayInputStream(((PKCS8EncodedKeySpec)keySpec).getEncoded()));
                }
                catch (Exception e)
                {
                    throw new InvalidKeySpecException(e.toString());
                }
            }
            else if (keySpec instanceof DSAPrivateKeySpec)
            {
                return new JDKDSAPrivateKey((DSAPrivateKeySpec)keySpec);
            }
    
            throw new InvalidKeySpecException("Unknown KeySpec type: " + keySpec.getClass().getName());
        }
    
        protected PublicKey engineGeneratePublic(
            KeySpec    keySpec)
            throws InvalidKeySpecException
        {
            if (keySpec instanceof X509EncodedKeySpec)
            {
                try
                {
                    return JDKKeyFactory.createPublicKeyFromDERStream(
                                new ByteArrayInputStream(((X509EncodedKeySpec)keySpec).getEncoded()));
                }
                catch (Exception e)
                {
                    throw new InvalidKeySpecException(e.toString());
                }
            }
            else if (keySpec instanceof DSAPublicKeySpec)
            {
                return new JDKDSAPublicKey((DSAPublicKeySpec)keySpec);
            }
    
            throw new InvalidKeySpecException("Unknown KeySpec type: " + keySpec.getClass().getName());
        }
    }

    public static class GOST3410
        extends JDKKeyFactory
    {
        public GOST3410()
        {
        }
        
        protected PrivateKey engineGeneratePrivate(
                KeySpec    keySpec)
        throws InvalidKeySpecException
        {
            if (keySpec instanceof PKCS8EncodedKeySpec)
            {
                try
                {
                    return JDKKeyFactory.createPrivateKeyFromDERStream(
                            new ByteArrayInputStream(((PKCS8EncodedKeySpec)keySpec).getEncoded()));
                }
                catch (Exception e)
                {
                    throw new InvalidKeySpecException(e.toString());
                }
            }
            else if (keySpec instanceof GOST3410PrivateKeySpec)
            {
                return new JDKGOST3410PrivateKey((GOST3410PrivateKeySpec)keySpec);
            }
            
            throw new InvalidKeySpecException("Unknown KeySpec type: " + keySpec.getClass().getName());
        }
        
        protected PublicKey engineGeneratePublic(
                KeySpec    keySpec)
        throws InvalidKeySpecException
        {
            if (keySpec instanceof X509EncodedKeySpec)
            {
                try
                {
                    return JDKKeyFactory.createPublicKeyFromDERStream(
                            new ByteArrayInputStream(((X509EncodedKeySpec)keySpec).getEncoded()));
                }
                catch (Exception e)
                {
                    throw new InvalidKeySpecException(e.toString());
                }
            }
            else if (keySpec instanceof GOST3410PublicKeySpec)
            {
                return new JDKGOST3410PublicKey((GOST3410PublicKeySpec)keySpec);
            }
            
            throw new InvalidKeySpecException("Unknown KeySpec type: " + keySpec.getClass().getName());
        }
    }
    
    public static class ElGamal
        extends JDKKeyFactory
    {
        public ElGamal()
        {
            elGamalFactory = true;
        }

        protected PrivateKey engineGeneratePrivate(
            KeySpec    keySpec)
            throws InvalidKeySpecException
        {
            if (keySpec instanceof PKCS8EncodedKeySpec)
            {
                try
                {
                    return JDKKeyFactory.createPrivateKeyFromDERStream(
                                new ByteArrayInputStream(((PKCS8EncodedKeySpec)keySpec).getEncoded()));
                }
                catch (Exception e)
                {
                    throw new InvalidKeySpecException(e.toString());
                }
            }
            else if (keySpec instanceof ElGamalPrivateKeySpec)
            {
                return new JCEElGamalPrivateKey((ElGamalPrivateKeySpec)keySpec);
            }
    
            throw new InvalidKeySpecException("Unknown KeySpec type: " + keySpec.getClass().getName());
        }
    
        protected PublicKey engineGeneratePublic(
            KeySpec    keySpec)
            throws InvalidKeySpecException
        {
            if (keySpec instanceof X509EncodedKeySpec)
            {
                try
                {
                    return JDKKeyFactory.createPublicKeyFromDERStream(
                                new ByteArrayInputStream(((X509EncodedKeySpec)keySpec).getEncoded()));
                }
                catch (Exception e)
                {
                    throw new InvalidKeySpecException(e.toString());
                }
            }
            else if (keySpec instanceof ElGamalPublicKeySpec)
            {
                return new JCEElGamalPublicKey((ElGamalPublicKeySpec)keySpec);
            }
    
            throw new InvalidKeySpecException("Unknown KeySpec type: " + keySpec.getClass().getName());
        }
    }

    public static class EC
        extends JDKKeyFactory
    {
        String  algorithm;

        public EC()
        {
            this("EC");
        }

        public EC(
            String  algorithm)
        {
            this.algorithm = algorithm;
        }

        protected PrivateKey engineGeneratePrivate(
            KeySpec    keySpec)
            throws InvalidKeySpecException
        {
            if (keySpec instanceof PKCS8EncodedKeySpec)
            {
                try
                {
                    return JDKKeyFactory.createPrivateKeyFromDERStream(
                                new ByteArrayInputStream(((PKCS8EncodedKeySpec)keySpec).getEncoded()));
                }
                catch (Exception e)
                {
                    throw new InvalidKeySpecException(e.toString());
                }
            }
            else if (keySpec instanceof ECPrivateKeySpec)
            {
                return new JCEECPrivateKey(algorithm, (ECPrivateKeySpec)keySpec);
            }
    
            throw new InvalidKeySpecException("Unknown KeySpec type: " + keySpec.getClass().getName());
        }
    
        protected PublicKey engineGeneratePublic(
            KeySpec    keySpec)
            throws InvalidKeySpecException
        {
            if (keySpec instanceof X509EncodedKeySpec)
            {
                try
                {
                    return JDKKeyFactory.createPublicKeyFromDERStream(
                                new ByteArrayInputStream(((X509EncodedKeySpec)keySpec).getEncoded()));
                }
                catch (Exception e)
                {
                    throw new InvalidKeySpecException(e.toString());
                }
            }
            else if (keySpec instanceof ECPublicKeySpec)
            {
                return new JCEECPublicKey(algorithm, (ECPublicKeySpec)keySpec);
            }
    
            throw new InvalidKeySpecException("Unknown KeySpec type: " + keySpec.getClass().getName());
        }
    }

    public static class ECDSA
        extends EC
    {
        public ECDSA()
        {
            super("ECDSA");
        }
    }
    
    public static class ECGOST3410
      extends EC
    {
        public ECGOST3410()
        {
            super("ECGOST3410");
        }
    }
    
    public static class ECDH
        extends EC
    {
        public ECDH()
        {
            super("ECDH");
        }
    }

    public static class ECDHC
        extends EC
    {
        public ECDHC()
        {
            super("ECDHC");
        }
    }
}