Example usage for org.bouncycastle.crypto.digests SHA256Digest SHA256Digest

List of usage examples for org.bouncycastle.crypto.digests SHA256Digest SHA256Digest

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Introduction

In this page you can find the example usage for org.bouncycastle.crypto.digests SHA256Digest SHA256Digest.

Prototype

public SHA256Digest()

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Document

Standard constructor

Usage

From source file:org.jitsi.bccontrib.prng.FortunaGenerator.java

License:Open Source License

public FortunaGenerator(byte[] seed) {
    generator = new Generator(new AESFastEngine(), new SHA256Digest());
    pools = new Digest[NUM_POOLS];
    for (int i = 0; i < NUM_POOLS; i++)
        pools[i] = new SHA256Digest();
    buffer = new byte[256];
    if (seed != null) {
        generator.init(seed);/*  w  w  w .jav  a  2 s  .c o  m*/
        fillBlock();
        initialized = true;
    }
}

From source file:org.jnotary.dvcs.SimpleRequestTest.java

License:Open Source License

@Test
public void ccpd() throws IOException {

    byte[] req_data = testData.getBytes();
    Digest digest = new SHA256Digest();
    digest.update(req_data, 0, req_data.length);

    byte[] digestData = new byte[digest.getDigestSize()];
    digest.doFinal(digestData, 0);/*from  ww  w .  j  a v  a  2 s. c  o m*/

    DigestInfo messageImprint = new DigestInfo(new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha256),
            digestData);
    Data data = new Data(messageImprint);

    DVCSRequestInformation requestInformation = new DVCSRequestInformation(ServiceType.CCPD);

    requestInformation.setNonce(new DERInteger(random.nextLong()));

    DVCSTime requestTime = new DVCSTime(new DERGeneralizedTime(new java.util.Date()));
    requestInformation.setRequestTime(requestTime);

    DVCSRequest reqOut = new DVCSRequest(requestInformation, data);

    DVCSRequest reqIn = DVCSRequest.getInstance(reqOut.getEncoded());
    assertTrue("Service type is incorrect", reqIn.getRequestInformation().getService() == ServiceType.CCPD);
    assertTrue("Nonce is incorrect",
            reqIn.getRequestInformation().getNonce().equals(reqOut.getRequestInformation().getNonce()));
    assertTrue("Request Time is incorrect", reqIn.getRequestInformation().getRequestTime()
            .equals(reqOut.getRequestInformation().getRequestTime()));
    assertTrue("Digest alg is incorrect", reqIn.getData().getMessageImprint().getAlgorithmId()
            .equals(reqOut.getData().getMessageImprint().getAlgorithmId()));
    assertTrue("Digest value is incorrect", Arrays.equals(reqIn.getData().getMessageImprint().getDigest(),
            reqOut.getData().getMessageImprint().getDigest()));
}

From source file:org.jnotary.dvcs.SimpleResponseTest.java

License:Open Source License

@Test
public void allGoodResponses() throws IOException {

    DVCSRequestInformation requestInformation = new DVCSRequestInformation(ServiceType.CPD);
    requestInformation.setNonce(new DERInteger(random.nextLong()));
    DVCSTime requestTime = new DVCSTime(new DERGeneralizedTime(new java.util.Date()));
    requestInformation.setRequestTime(requestTime);

    byte[] req_data = testData.getBytes();
    Digest digest = new SHA256Digest();
    digest.update(req_data, 0, req_data.length);
    byte[] digestData = new byte[digest.getDigestSize()];
    digest.doFinal(digestData, 0);/*from ww  w.ja v  a2s  .co  m*/
    DigestInfo messageImprint = new DigestInfo(new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha256),
            digestData);

    DERInteger serialNumber = new DERInteger(random.nextLong());
    DVCSTime responseTime = new DVCSTime(new DERGeneralizedTime(new java.util.Date()));

    DVCSCertInfo dvCertInfo = new DVCSCertInfo(requestInformation, messageImprint, serialNumber, responseTime);
    DVCSResponse respOut = new DVCSResponse(dvCertInfo);

    DVCSResponse respIn = DVCSResponse.getInstance(respOut.getEncoded());
    assertTrue("Service type is incorrect",
            respIn.getDvCertInfo().getRequestInformation().getService() == ServiceType.CPD);
    assertTrue("Nonce is incorrect", respIn.getDvCertInfo().getRequestInformation().getNonce()
            .equals(respOut.getDvCertInfo().getRequestInformation().getNonce()));
    assertTrue("Request Time is incorrect", respIn.getDvCertInfo().getRequestInformation().getRequestTime()
            .equals(respOut.getDvCertInfo().getRequestInformation().getRequestTime()));
    assertTrue("Message imprint is incorrect",
            respIn.getDvCertInfo().getMessageImprint().equals(respOut.getDvCertInfo().getMessageImprint()));
    assertTrue("Serial number is incorrect",
            respIn.getDvCertInfo().getSerialNumber().equals(respOut.getDvCertInfo().getSerialNumber()));
    assertTrue("Response time is incorrect",
            respIn.getDvCertInfo().getResponseTime().equals(respOut.getDvCertInfo().getResponseTime()));
}

From source file:org.opcfoundation.ua.transport.security.BcCryptoProvider.java

License:Open Source License

private HMac createMac(SecurityAlgorithm algorithm, KeyParameter param) throws ServiceResultException {

    HMac hmac = null;//from w w w  .  j a va 2  s .  c o  m
    if (algorithm.equals(SecurityAlgorithm.HmacSha1)) {
        hmac = new HMac(new SHA1Digest());
    } else if (algorithm.equals(SecurityAlgorithm.HmacSha256)) {
        hmac = new HMac(new SHA256Digest());
    } else {
        throw new ServiceResultException(StatusCodes.Bad_SecurityPolicyRejected,
                "Unsupported symmetric signature algorithm: " + algorithm);
    }
    hmac.init(param);
    return hmac;

}

From source file:org.opcfoundation.ua.transport.security.BcCryptoProvider.java

License:Open Source License

private Signer getAsymmetricSigner(boolean forSigning, SecurityAlgorithm algorithm, CipherParameters params)
        throws ServiceResultException {

    Signer signer = null;/*from   ww  w. ja va2 s . co m*/
    if (algorithm.equals(SecurityAlgorithm.RsaSha1)) {
        signer = new RSADigestSigner(new SHA1Digest());
    } else if (algorithm.equals(SecurityAlgorithm.RsaSha256)) {
        signer = new RSADigestSigner(new SHA256Digest());
    } else {
        throw new ServiceResultException(StatusCodes.Bad_SecurityPolicyRejected,
                "Unsupported asymmetric signature algorithm: " + algorithm);
    }
    signer.init(forSigning, params);
    return signer;

}

From source file:org.opendaylight.capwap.dtls.DtlsUtils.java

License:Open Source License

static byte[] sha256DigestOf(byte[] input) {
    SHA256Digest d = new SHA256Digest();
    d.update(input, 0, input.length);//from w  w  w  .  j  a v a2s .c o  m
    byte[] result = new byte[d.getDigestSize()];
    d.doFinal(result, 0);
    return result;
}

From source file:org.panbox.core.crypto.io.AuthTagVerifier.java

License:Open Source License

/**
 * @param/*from ww w.  jav  a  2  s . co  m*/
 */
public AuthTagVerifier(EncRandomAccessFile encRandomAccessFile) {
    this.backEncRandomAccessFile = encRandomAccessFile;
    this.CHUNK_AUTH_TAG_LENGTH = encRandomAccessFile.CHUNK_TLEN;
    this.authTagHMac = new HMac(new SHA256Digest());
    // KeyParameter keyParame = new
    // KeyParameter(backEncRandomAccessFile.secretKey.)
    // authTagHMac.init(null);

    this.atagList = new ArrayList<byte[]>();
}

From source file:org.panbox.core.crypto.io.AuthTagVerifierTest.java

License:Open Source License

/**
 * Test method for//  w  ww . j  a v a 2 s.  co m
 * {@link org.panbox.core.crypto.io.AuthTagVerifier#updateFileAuthTag()}.
 * 
 * @throws FileEncryptionException
 */
@Test
public void testUpdateFileAuthTag() throws Exception {
    byte[] testTag = new byte[TAGLEN];
    byte[] referenceFileTag = new byte[testVerifier.authTagHMac.getMacSize()];
    HMac refHMac = testVerifier.authTagHMac.getClass().getConstructor(Digest.class)
            .newInstance(new SHA256Digest());

    refHMac.init(new KeyParameter(testKey.getEncoded()));

    // exception should be thrown if AuTagVerifier-HMac cannot be properly
    // initialized
    aesTestFile.shareKey = null;
    try {
        testVerifier.updateFileAuthTag();
        fail("Expected exception for invalid file encryption key!");
    } catch (FileEncryptionException e) {
        assertEquals("Invalid file encryption key in encrypting random access file!", e.getMessage());
    }
    // restore key
    aesTestFile.shareKey = testKey;

    // test if exception is thrown upon file auth tag update without chunk
    // auth tags
    try {
        testVerifier.updateFileAuthTag();
        fail("Expected exception as no chunk auth tags have been set!");
    } catch (FileEncryptionException e) {
        assertEquals("No chunk authentication tags have been set yet!", e.getMessage());
    }

    Arrays.fill(testTag, (byte) 0x41);
    refHMac.update(testTag, 0, TAGLEN);
    testVerifier.insertChunkAuthTag(0, testTag);
    // skip one chunk
    Arrays.fill(testTag, (byte) 0x42);
    refHMac.update(testTag, 0, TAGLEN);
    testVerifier.insertChunkAuthTag(2, testTag);
    try {
        testVerifier.updateFileAuthTag();
        fail("Missing authentication tag should cause an exception");
    } catch (FileEncryptionException e) {
        assertEquals("Invalid chunk authentication tag in auth tag table at offset: 1", e.getMessage());
    }
    Arrays.fill(testTag, (byte) 0x43);
    refHMac.update(testTag, 0, TAGLEN);
    testVerifier.insertChunkAuthTag(1, testTag);
    assertNull(aesTestFile.readFileAuthenticationTag());
    refHMac.doFinal(referenceFileTag, 0);
    testVerifier.updateFileAuthTag();
    assertNotNull(aesTestFile.readFileAuthenticationTag());
    // should NOT be equal as update order for refHMac was 0 - 2 - 1
    assertFalse(Arrays.equals(referenceFileTag, aesTestFile.readFileAuthenticationTag()));

    // calculate actual value
    refHMac.reset();
    Arrays.fill(testTag, (byte) 0x41);
    refHMac.update(testTag, 0, TAGLEN);
    Arrays.fill(testTag, (byte) 0x43);
    refHMac.update(testTag, 0, TAGLEN);
    Arrays.fill(testTag, (byte) 0x42);
    refHMac.update(testTag, 0, TAGLEN);
    refHMac.doFinal(referenceFileTag, 0);

    assertArrayEquals(referenceFileTag, aesTestFile.readFileAuthenticationTag());
}

From source file:org.panbox.core.crypto.io.AuthTagVerifierTest.java

License:Open Source License

/**
 * Test method for//from w w  w .j av a2  s  . com
 * {@link org.panbox.core.crypto.io.AuthTagVerifier#verifyFileAuthTag()}.
 */
@Test
public void testVerifyFileAuthTag() throws Exception {
    // verification with empty file auth tag should cause exception
    assertNull(aesTestFile.readFileAuthenticationTag());
    try {
        testVerifier.verifyFileAuthTag();
        fail("Expected exception for invalid file authentication tag in encrypted file");
    } catch (Exception e) {
        assertEquals("Encrypted file has invalid file authentication tag!", e.getMessage());
    }
    // verification with file auth tag of invalid size should cause
    // exception
    aesTestFile.writeFileAuthenticationTag(new byte[] { 1, 2, 3, 4 });
    try {
        testVerifier.verifyFileAuthTag();
        fail("Expected exception for invalid file authentication tag in encrypted file");
    } catch (Exception e) {
        assertEquals("Encrypted file has invalid file authentication tag!", e.getMessage());
    }

    // insert 2 test chunks auth tags
    byte[] testTag1 = new byte[TAGLEN];
    byte[] testTag2 = new byte[TAGLEN];
    Arrays.fill(testTag1, (byte) 0x41);
    Arrays.fill(testTag2, (byte) 0x42);
    testVerifier.insertChunkAuthTag(0, testTag1);
    testVerifier.insertChunkAuthTag(1, testTag2);

    // create reference for calculating expected file auth tag
    // value
    HMac refHMac = testVerifier.authTagHMac.getClass().getConstructor(Digest.class)
            .newInstance(new SHA256Digest());
    refHMac.init(new KeyParameter(testKey.getEncoded()));

    refHMac.update(testTag1, 0, TAGLEN);
    refHMac.update(testTag2, 0, TAGLEN);

    byte[] refRootTag = new byte[refHMac.getMacSize()];
    refHMac.doFinal(refRootTag, 0);

    // first, test verification of valid file auth tag
    aesTestFile.writeFileAuthenticationTag(refRootTag);
    assertTrue(testVerifier.verifyFileAuthTag());

    // second, test verification for invalid file auth tag
    testVerifier.updateFileAuthTag();
    byte[] tmp = aesTestFile.readFileAuthenticationTag();

    // invalidate file auth tag
    Arrays.fill(tmp, 0, 4, (byte) 0x00);
    aesTestFile.writeFileAuthenticationTag(tmp);

    // check if verification fails for invalid file auth tag
    assertFalse(testVerifier.verifyFileAuthTag());
}

From source file:org.pwsafe.lib.crypto.HmacPws.java

License:Open Source License

public HmacPws(byte[] key) {
    mac = new HMac(new SHA256Digest());
    KeyParameter kp = new KeyParameter(key);
    mac.init(kp);
}