Examples of java.security.spec.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

        try {
            OAEPParameterSpec oaepParameterSpec = null;
            if (WSConstants.KEYTRANSPORT_RSAOEP.equals(keyEncAlgo)) {
                oaepParameterSpec = 
                    new OAEPParameterSpec(
                        "SHA-1", "MGF1", new MGF1ParameterSpec("SHA-1"), PSource.PSpecified.DEFAULT
                    );
            }
            if (oaepParameterSpec == null) {
                cipher.init(Cipher.WRAP_MODE, remoteCert);
            } else {

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

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            PSource.PSpecified pSource = PSource.PSpecified.DEFAULT;
            if (oaepParams != null) {
                pSource = new PSource.PSpecified(oaepParams);
            }
            
            MGF1ParameterSpec mgfParameterSpec = new MGF1ParameterSpec("SHA-1");
            if (XMLCipher.RSA_OAEP_11.equals(encryptionAlgorithm)) {
                if (EncryptionConstants.MGF1_SHA256.equals(mgfAlgorithm)) {
                    mgfParameterSpec = new MGF1ParameterSpec("SHA-256");
                } else if (EncryptionConstants.MGF1_SHA384.equals(mgfAlgorithm)) {
                    mgfParameterSpec = new MGF1ParameterSpec("SHA-384");
                } else if (EncryptionConstants.MGF1_SHA512.equals(mgfAlgorithm)) {
                    mgfParameterSpec = new MGF1ParameterSpec("SHA-512");
                }
            }
            return new OAEPParameterSpec(jceDigestAlgorithm, "MGF1", mgfParameterSpec, pSource);
        }

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    public static class RsaPssSha256 extends RsaUsingShaAlgorithm
    {
        public RsaPssSha256()
        {
            super(AlgorithmIdentifiers.RSA_PSS_USING_SHA256, "SHA256withRSAandMGF1");
            MGF1ParameterSpec mgf1pec = MGF1ParameterSpec.SHA256;
            PSSParameterSpec pssSpec = new PSSParameterSpec(mgf1pec.getDigestAlgorithm(), MGF1, mgf1pec, 32, TRAILER);
            setAlgorithmParameterSpec(pssSpec);
        }

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    public static class RsaPssSha384 extends RsaUsingShaAlgorithm
    {
        public RsaPssSha384()
        {
            super(AlgorithmIdentifiers.RSA_PSS_USING_SHA384, "SHA384withRSAandMGF1");
            MGF1ParameterSpec mgf1pec = MGF1ParameterSpec.SHA384;
            PSSParameterSpec pssSpec = new PSSParameterSpec(mgf1pec.getDigestAlgorithm(), MGF1, mgf1pec, 48, TRAILER);
            setAlgorithmParameterSpec(pssSpec);
        }

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    public static class RsaPssSha512 extends RsaUsingShaAlgorithm
    {
        public RsaPssSha512()
        {
            super(AlgorithmIdentifiers.RSA_PSS_USING_SHA512, "SHA512withRSAandMGF1");
            MGF1ParameterSpec mgf1pec = MGF1ParameterSpec.SHA512;
            PSSParameterSpec pssSpec = new PSSParameterSpec(mgf1pec.getDigestAlgorithm(), MGF1, mgf1pec, 64, TRAILER);
            setAlgorithmParameterSpec(pssSpec);
        }

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            PSource.PSpecified pSource = PSource.PSpecified.DEFAULT;
            if (oaepParams != null) {
                pSource = new PSource.PSpecified(oaepParams);
            }
            
            MGF1ParameterSpec mgfParameterSpec = new MGF1ParameterSpec("SHA-1");
            if (XMLCipher.RSA_OAEP_11.equals(encryptionAlgorithm)) {
                if (EncryptionConstants.MGF1_SHA256.equals(mgfAlgorithm)) {
                    mgfParameterSpec = new MGF1ParameterSpec("SHA-256");
                } else if (EncryptionConstants.MGF1_SHA384.equals(mgfAlgorithm)) {
                    mgfParameterSpec = new MGF1ParameterSpec("SHA-384");
                } else if (EncryptionConstants.MGF1_SHA512.equals(mgfAlgorithm)) {
                    mgfParameterSpec = new MGF1ParameterSpec("SHA-512");
                }
            }
            return new OAEPParameterSpec(jceDigestAlgorithm, "MGF1", mgfParameterSpec, pSource);
        }

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                                byte[] oaepParams = getSecurityProperties().getEncryptionKeyTransportOAEPParams();
                                if (oaepParams != null) {
                                    pSource = new PSource.PSpecified(oaepParams);
                                }


                                MGF1ParameterSpec mgfParameterSpec = new MGF1ParameterSpec("SHA-1");
                                if (encryptionKeyTransportMGFAlgorithm != null) {
                                    String jceMGFAlgorithm = JCEAlgorithmMapper.translateURItoJCEID(encryptionKeyTransportMGFAlgorithm);
                                    mgfParameterSpec = new MGF1ParameterSpec(jceMGFAlgorithm);
                                }
                                algorithmParameterSpec = new OAEPParameterSpec(jceDigestAlgorithm, "MGF1", mgfParameterSpec, pSource);
                            }


                            if (pubKey != null) {

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                                        XMLSecurityUtils.getQNameType(encryptedKeyType.getEncryptionMethod().getContent(), XMLSecurityConstants.TAG_xenc_OAEPparams);
                                if (oaepParams != null) {
                                    pSource = new PSource.PSpecified(oaepParams);
                                }


                                MGF1ParameterSpec mgfParameterSpec = new MGF1ParameterSpec("SHA-1");
                                final MGFType mgfType =
                                        XMLSecurityUtils.getQNameType(encryptedKeyType.getEncryptionMethod().getContent(), XMLSecurityConstants.TAG_xenc11_MGF);
                                if (mgfType != null) {
                                    String jceMGFAlgorithm = JCEAlgorithmMapper.translateURItoJCEID(mgfType.getAlgorithm());
                                    mgfParameterSpec = new MGF1ParameterSpec(jceMGFAlgorithm);
                                }
                                OAEPParameterSpec oaepParameterSpec = new OAEPParameterSpec(jceDigestAlgorithm, "MGF1", mgfParameterSpec, pSource);
                                cipher.init(Cipher.UNWRAP_MODE, wrappingSecurityToken.getSecretKey(algorithmURI, algorithmUsage, correlationID), oaepParameterSpec);
                            } else {
                                cipher.init(Cipher.UNWRAP_MODE, wrappingSecurityToken.getSecretKey(algorithmURI, algorithmUsage, correlationID));

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