Examples of MGF1ParameterSpec

java.security.spec.MGF1ParameterSpec

etf.org/rfc/rfc3447.txt">PKCS #1 v2.1 standard.

Its ASN.1 definition in PKCS#1 standard is described below:

 MGF1Parameters ::= OAEP-PSSDigestAlgorthms

where

 OAEP-PSSDigestAlgorithms    ALGORITHM-IDENTIFIER ::= { { OID id-sha1 PARAMETERS NULL   }| { OID id-sha256 PARAMETERS NULL }| { OID id-sha384 PARAMETERS NULL }| { OID id-sha512 PARAMETERS NULL }, ...  -- Allows for future expansion -- }

@see PSSParameterSpec @see javax.crypto.spec.OAEPParameterSpec @author Valerie Peng @version 1.5, 07/20/06 @since 1.5

Examples of java.security.spec.MGF1ParameterSpec

                if (!(spec.getMGFParameters() instanceof MGF1ParameterSpec))
                {
                    throw new InvalidAlgorithmParameterException("unkown MGF parameters");
                }
                
                MGF1ParameterSpec   mgfParams = (MGF1ParameterSpec)spec.getMGFParameters();
                
                if (!JCEDigestUtil.isSameDigest(mgfParams.getDigestAlgorithm(), spec.getDigestAlgorithm()))
                {
                    throw new InvalidAlgorithmParameterException("digest algorithm for MGF should be the same as for OAEP parameters.");
                }
                
                Digest              digest = JCEDigestUtil.getDigest(mgfParams.getDigestAlgorithm());
                
                if (digest == null)
                {
                    throw new InvalidAlgorithmParameterException("no match on MGF digest algorithm: "+ mgfParams.getDigestAlgorithm());
                }
                
                cipher = new OAEPEncoding(new RSABlindedEngine(), digest, ((PSource.PSpecified)spec.getPSource()).getValue());
            }
        }

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Examples of java.security.spec.MGF1ParameterSpec

   
    private void initFromSpec(
        OAEPParameterSpec pSpec) 
        throws NoSuchPaddingException
    {
        MGF1ParameterSpec   mgfParams = (MGF1ParameterSpec)pSpec.getMGFParameters();
        Digest              digest = JCEDigestUtil.getDigest(mgfParams.getDigestAlgorithm());
        
        if (digest == null)
        {
            throw new NoSuchPaddingException("no match on OAEP constructor for digest algorithm: "+ mgfParams.getDigestAlgorithm());
        }


        cipher = new BufferedAsymmetricBlockCipher(new OAEPEncoding(new ElGamalEngine(), digest, ((PSource.PSpecified)pSpec.getPSource()).getValue()));        
        paramSpec = pSpec;
    }

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Examples of java.security.spec.MGF1ParameterSpec

        {
            initFromSpec(OAEPParameterSpec.DEFAULT);
        }
        else if (pad.equals("OAEPWITHMD5ANDMGF1PADDING"))
        {
            initFromSpec(new OAEPParameterSpec("MD5", "MGF1", new MGF1ParameterSpec("MD5"), PSource.PSpecified.DEFAULT));
        }
        else if (pad.equals("OAEPWITHSHA1ANDMGF1PADDING"))
        {
            initFromSpec(OAEPParameterSpec.DEFAULT);
        }
        else if (pad.equals("OAEPWITHSHA224ANDMGF1PADDING"))
        {
            initFromSpec(new OAEPParameterSpec("SHA-224", "MGF1", new MGF1ParameterSpec("SHA-224"), PSource.PSpecified.DEFAULT));
        }
        else if (pad.equals("OAEPWITHSHA256ANDMGF1PADDING"))
        {
            initFromSpec(new OAEPParameterSpec("SHA-256", "MGF1", MGF1ParameterSpec.SHA256, PSource.PSpecified.DEFAULT));
        }

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Examples of java.security.spec.MGF1ParameterSpec

            if (!(paramSpec.getMGFParameters() instanceof MGF1ParameterSpec))
            {
                throw new InvalidParameterException("unkown MGF parameters");
            }
            
            MGF1ParameterSpec   mgfParams = (MGF1ParameterSpec)paramSpec.getMGFParameters();
            
            if (!JCEDigestUtil.isSameDigest(mgfParams.getDigestAlgorithm(), paramSpec.getDigestAlgorithm()))
            {
                throw new InvalidParameterException("digest algorithm for MGF should be the same as for PSS parameters.");
            }
            
            digest = JCEDigestUtil.getDigest(mgfParams.getDigestAlgorithm());
            
            if (digest == null)
            {
                throw new InvalidParameterException("no match on MGF digest algorithm: "+ mgfParams.getDigestAlgorithm());
            }
            
            this.saltLength = paramSpec.getSaltLength();
            this.trailer = getTrailer(paramSpec.getTrailerField());
        }

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Examples of java.security.spec.MGF1ParameterSpec

    static public class SHA224withRSA
        extends JDKPSSSigner
    {
        public SHA224withRSA()
        {
            super(new RSABlindedEngine(), new PSSParameterSpec("SHA-224", "MGF1", new MGF1ParameterSpec("SHA-224"), 28, 1));
        }

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Examples of java.security.spec.MGF1ParameterSpec

    static public class SHA256withRSA
        extends JDKPSSSigner
    {
        public SHA256withRSA()
        {
            super(new RSABlindedEngine(), new PSSParameterSpec("SHA-256", "MGF1", new MGF1ParameterSpec("SHA-256"), 32, 1));
        }

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Examples of java.security.spec.MGF1ParameterSpec

    static public class SHA384withRSA
        extends JDKPSSSigner
    {
        public SHA384withRSA()
        {
            super(new RSABlindedEngine(), new PSSParameterSpec("SHA-384", "MGF1", new MGF1ParameterSpec("SHA-384"), 48, 1));
        }

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Examples of java.security.spec.MGF1ParameterSpec

    static public class SHA512withRSA
        extends JDKPSSSigner
    {
        public SHA512withRSA()
        {
            super(new RSABlindedEngine(), new PSSParameterSpec("SHA-512", "MGF1", new MGF1ParameterSpec("SHA-512"), 64, 1));
        }

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Examples of java.security.spec.MGF1ParameterSpec

                    jceDigestAlgorithm = JCEMapper.translateURItoJCEID(digestAlgorithm);
                }
                
                oaepParameterSpec = 
                    new OAEPParameterSpec(
                        jceDigestAlgorithm, "MGF1", new MGF1ParameterSpec("SHA-1"), PSource.PSpecified.DEFAULT
                    );
            }
            if (oaepParameterSpec == null) {
                cipher.init(Cipher.DECRYPT_MODE, privateKey);
            } else {

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Examples of java.security.spec.MGF1ParameterSpec

                    jceDigestAlgorithm = JCEMapper.translateURItoJCEID(digestAlgorithm);
                }
                
                oaepParameterSpec = 
                    new OAEPParameterSpec(
                        jceDigestAlgorithm, "MGF1", new MGF1ParameterSpec("SHA-1"), PSource.PSpecified.DEFAULT
                    );
            }
            if (oaepParameterSpec == null) {
                cipher.init(Cipher.DECRYPT_MODE, privateKey);
            } else {

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