Examples of PSSParameterSpec

java.security.spec.PSSParameterSpec

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

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

 RSASSA-PSS-params ::= SEQUENCE { hashAlgorithm      [0] OAEP-PSSDigestAlgorithms  DEFAULT sha1, maskGenAlgorithm   [1] PKCS1MGFAlgorithms  DEFAULT mgf1SHA1, saltLength         [2] INTEGER  DEFAULT 20, trailerField       [3] INTEGER  DEFAULT 1 }

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 -- } PKCS1MGFAlgorithms    ALGORITHM-IDENTIFIER ::= { { OID id-mgf1 PARAMETERS OAEP-PSSDigestAlgorithms }, ...  -- Allows for future expansion -- }

Note: the PSSParameterSpec.DEFAULT uses the following: message digest -- "SHA-1" mask generation function (mgf) -- "MGF1" parameters for mgf -- MGF1ParameterSpec.SHA1 SaltLength -- 20 TrailerField -- 1 @see MGF1ParameterSpec @see AlgorithmParameterSpec @see java.security.Signature @author Valerie Peng @version 1.9 06/07/20 @since 1.4

Examples of java.security.spec.PSSParameterSpec

    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.PSSParameterSpec

    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.PSSParameterSpec

         * Return the PKCS#1 ASN.1 structure RSASSA-PSS-params.
         */
        protected byte[] engineGetEncoded() 
            throws IOException
        {
            PSSParameterSpec    pssSpec = currentSpec;
            AlgorithmIdentifier hashAlgorithm = new AlgorithmIdentifier(
                                                JCEDigestUtil.getOID(pssSpec.getDigestAlgorithm()),
                                                new DERNull());
            MGF1ParameterSpec   mgfSpec = (MGF1ParameterSpec)pssSpec.getMGFParameters();
            AlgorithmIdentifier maskGenAlgorithm = new AlgorithmIdentifier(
                                                PKCSObjectIdentifiers.id_mgf1, 
                                                new AlgorithmIdentifier(JCEDigestUtil.getOID(mgfSpec.getDigestAlgorithm()), new DERNull()));
            RSASSAPSSparams     pssP = new RSASSAPSSparams(hashAlgorithm, maskGenAlgorithm, new DERInteger(pssSpec.getSaltLength()), new DERInteger(pssSpec.getTrailerField()));
            
            return pssP.getEncoded("DER");
        }

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Examples of java.security.spec.PSSParameterSpec

        {
            try
            {
                RSASSAPSSparams pssP = new RSASSAPSSparams((ASN1Sequence)ASN1Object.fromByteArray(params));


                currentSpec = new PSSParameterSpec(
                                       pssP.getHashAlgorithm().getObjectId().getId(), 
                                       pssP.getMaskGenAlgorithm().getObjectId().getId(), 
                                       new MGF1ParameterSpec(AlgorithmIdentifier.getInstance(pssP.getMaskGenAlgorithm().getParameters()).getObjectId().getId()),
                                       pssP.getSaltLength().getValue().intValue(),
                                       pssP.getTrailerField().getValue().intValue());

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Examples of java.security.spec.PSSParameterSpec

                return new SimpleTestResult(false, "SHA1 signature verification failed");
            }


            s = Signature.getInstance("SHA1withRSAandMGF1", "BC");
            
            s.setParameter(new PSSParameterSpec(20));
            
            s.initVerify(pubKey);
            s.update(msg1a);
            if (!s.verify(sig1a))
            {
                return new SimpleTestResult(false, "SHA1 signature verification with default parameters failed");
            }
            
            AlgorithmParameters pss = s.getParameters();
            if (!arrayEquals(pss.getEncoded(), new byte[] { 0x30, 0x00 }))
            {
                return new SimpleTestResult(false, "failed default encoding test.");
            }
            
            s = Signature.getInstance("SHA256withRSA/PSS", "BC");


            s.initSign(privKey, new FixedRandom(slt1a));
            s.update(msg1a);
            sig = s.sign();


            pss = s.getParameters();
            
            if (!arrayEquals(sig1b, sig))
            {
                return new SimpleTestResult(false, "PSS Sign test expected " + new String(Hex.encode(sig1b)) + " got " + new String(Hex.encode(sig)));
            }


            s = Signature.getInstance("SHA256withRSAandMGF1", "BC");
            
            s.setParameter(pss.getParameterSpec(PSSParameterSpec.class));
            
            s.initVerify(pubKey);
            s.update(msg1a);
            if (!s.verify(sig1b))
            {
                return new SimpleTestResult(false, "SHA256 signature verification failed");
            }


            //
            // 512 test -with zero salt length
            //
            s = Signature.getInstance("SHA512withRSAandMGF1", "BC");
            
            s.setParameter(new PSSParameterSpec(0));
            s.initSign(privKey);


            s.update(msg1a);
            sig = s.sign();

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Examples of java.security.spec.PSSParameterSpec

        if (engineParams == null)
        {
            try
            {
                engineParams = AlgorithmParameters.getInstance("PSS", "BC");
                engineParams.init(new PSSParameterSpec(saltLength));
            }
            catch (Exception e)
            {
                throw new RuntimeException(e.toString());
            }

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Examples of java.security.spec.PSSParameterSpec

     * throws <code>IllegalArgumentException</code>
     * if <code>saltLen</code> less than 0
     */
    public final void testPSSParameterSpec0102() {
        try {
            new PSSParameterSpec(-1);
            fail("Expected IAE not thrown");
        } catch (IllegalArgumentException e) {
        }
    }

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Examples of java.security.spec.PSSParameterSpec

     * </code> ctor<br>
     * Assertion: constructs using valid parameters
     * <code>PSSParameterSpec<code> object
     */
    public final void testPSSParameterSpec0201() {
        AlgorithmParameterSpec aps = new PSSParameterSpec("SHA-1", "MGF1",
                MGF1ParameterSpec.SHA1, 20, 1);
        assertTrue(aps instanceof PSSParameterSpec);
    }

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Examples of java.security.spec.PSSParameterSpec

     * throws <code>NullPointerException</code>
     * if <code>mdName</code> is null
     */
    public final void testPSSParameterSpec0202() {
        try {
            new PSSParameterSpec(null, "MGF1", MGF1ParameterSpec.SHA1, 20, 1);
            fail("Expected NPE not thrown");
        } catch (NullPointerException e) {
        }
    }

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Examples of java.security.spec.PSSParameterSpec

     * throws <code>NullPointerException</code>
     * if <code>mgfName</code> is null
     */
    public final void testPSSParameterSpec0203() {
        try {
            new PSSParameterSpec("SHA-1", null, MGF1ParameterSpec.SHA1, 20, 1);
            fail("Expected NPE not thrown");
        } catch (NullPointerException e) {
        }
    }

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