Example usage for java.security Signature update

Introduction

In this page you can find the example usage for java.security Signature update.

Prototype

public final void update(ByteBuffer data) throws SignatureException

Source Link

Document

Updates the data to be signed or verified using the specified ByteBuffer.

Usage

From source file:org.chaston.oakfunds.xsrf.XsrfSigner.java

public String sign(String material) throws GeneralSecurityException {
    Signature sig = Signature.getInstance("SHA256withRSA");
    sig.initSign(privateKey, secureRandom);
    sig.update(material.getBytes(CHARSET));
    return Base64.encodeBase64String(sig.sign());
}

From source file:com.ibm.mobilefirstplatform.clientsdk.android.security.mca.internal.certificate.DefaultJSONSigner.java

private byte[] signCsrData(String csrJSONData, PrivateKey privateKey)
        throws NoSuchAlgorithmException, InvalidKeyException, SignatureException {
    Signature signature = Signature.getInstance("SHA256withRSA");
    signature.initSign(privateKey);//from w ww .  j a v  a 2s .  c o m
    signature.update(csrJSONData.getBytes());
    return signature.sign();
}

From source file:org.jgrades.lic.api.crypto.decrypt.SignatureValidator.java

public boolean signatureValidated(File encryptedLicenceFile, File signatureFile)
        throws LicenceCryptographyException {
    try {//from ww w .j a va  2 s.com
        X509Certificate certificate = keyExtractor.getCertificateForVerification();
        PublicKey publicKey = certificate.getPublicKey();

        Signature signature = Signature.getInstance(SIGNATURE_PROVIDER_INTERFACE);
        signature.initVerify(publicKey);

        signature.update(FileUtils.readFileToByteArray(encryptedLicenceFile));

        return signature.verify(FileUtils.readFileToByteArray(signatureFile));
    } catch (SignatureException e) {
        LOGGER.error("Signature {} validation failed", signatureFile.getAbsolutePath(), e);
        return false;
    } catch (NoSuchAlgorithmException | InvalidKeyException | IOException e) {
        throw new LicenceCryptographyException(e);
    }
}

From source file:netinf.common.security.impl.SignatureAlgorithmImpl.java

/**
 * @see SignatureAlgorithm#sign(String, PrivateKey, String)
 *//*  www  .  j ava  2s . co  m*/
@Override
public String sign(String originalString, PrivateKey sk, String hashAndSignatureFunction)
        throws NoSuchAlgorithmException, InvalidKeyException, SignatureException {
    Signature signature = Signature.getInstance(hashAndSignatureFunction);
    signature.initSign(sk);
    signature.update(originalString.getBytes());
    return Base64.encodeBase64String(signature.sign());
}

From source file:netinf.common.security.impl.SignatureAlgorithmImpl.java

/**
 * @see SignatureAlgorithm#verifySignature(String, String, PublicKey, String)
 *///  w  w  w .  ja  va2 s .  com
@Override
public boolean verifySignature(String originalString, String signatureString, PublicKey pk,
        String hashAndSignatureFunction)
        throws SignatureException, NoSuchAlgorithmException, InvalidKeyException {
    Signature signature = Signature.getInstance(hashAndSignatureFunction);
    signature.initVerify(pk);
    signature.update(originalString.getBytes());
    return signature.verify(Base64.decodeBase64(signatureString));
}

From source file:ru.codeinside.gws.crypto.cryptopro.Pkcs7Test.java

@Test
public void testEncoding() throws Exception {
    CryptoProvider.loadCertificate();//from w  w w .j  a va 2  s  . c o m
    byte[] content = IOUtils
            .toByteArray(R.getRequiredResourceStream("rr/req_cb8cff92-c788-46cf-a97f-f5c6f0170be5.xml"));
    final Signature signature = Signature.getInstance("GOST3411withGOST3410EL");
    signature.initSign(CryptoProvider.privateKey);
    signature.update(content);
    byte[] sign = signature.sign();
    byte[] pkcs7 = SunPkcs7
            .toPkcs7(new ru.codeinside.gws.api.Signature(CryptoProvider.cert, null, sign, false));
    ru.codeinside.gws.api.Signature sig2 = SunPkcs7.fromPkcs7(pkcs7);
    assertEquals(CryptoProvider.cert, sig2.certificate);
    assertArrayEquals(sign, sig2.sign);

    assertTrue(R.provider.validate(sig2, null, content));

}

From source file:org.jgrades.security.utils.SignatureProvider.java

public boolean signatureValidated(File encryptedLicenceFile, File signatureFile) {
    try {/*from   w  w  w . j  a va2  s.  c om*/
        X509Certificate certificate = extractor.getCertificateForVerification();
        PublicKey publicKey = certificate.getPublicKey();

        Signature signature = Signature.getInstance(SIGNATURE_PROVIDER_INTERFACE);
        signature.initVerify(publicKey);

        signature.update(FileUtils.readFileToByteArray(encryptedLicenceFile));

        return signature.verify(FileUtils.readFileToByteArray(signatureFile));
    } catch (SignatureException e) {
        LOGGER.debug("Signature verification failed", e);
        return false;
    } catch (NoSuchAlgorithmException | InvalidKeyException | IOException e) {
        throw new CryptographyException(e);
    }
}

From source file:cl.niclabs.tscrypto.common.encryption.KeyChain.java

public byte[] sign(String rsaKeyAlias, byte[] data) throws UnrecoverableEntryException,
        NoSuchAlgorithmException, KeyStoreException, InvalidKeyException, SignatureException {
    Signature sign = Signature.getInstance("SHA1WithRsa");
    sign.initSign(getPrivateKey(rsaKeyAlias));
    sign.update(data);

    byte[] signature = sign.sign();
    return signature;
}

From source file:com.xinferin.licensing.LicenceActivator.java

/**
 * Verifies the signature for the given bytes using the public key.
 * @param signature Signature/*from w ww .  j a v  a  2 s  .c  o  m*/
 * @param data Data that was signed
 * @return boolean True if valid signature else false
 * @throws Exception 
*/
public boolean verifySignature(byte[] signature, byte[] data) throws Exception {

    try {
        initialiseKeys();
        Signature signatureInstance = Signature.getInstance("SHA1withRSA");
        signatureInstance.initVerify(publicKey);
        signatureInstance.update(data);

        return signatureInstance.verify(signature);
    } catch (NoSuchAlgorithmException e) {
        throw new Exception("There is no such algorithm. Please check the JDK ver." + e.getCause());
    } catch (SignatureException e) {
        throw new Exception("There is a problem with the signature provided " + e.getCause());
    }
}

From source file:com.streamsets.lib.security.util.DataSignature.java

public Signer getSigner(final PrivateKey privateKey) {
    return new Signer() {
        @Override/*  w w w .  ja v a2 s. c  o  m*/
        public byte[] sign(byte[] data) throws GeneralSecurityException {
            Signature signer = Signature.getInstance("SHA1withDSA");
            signer.initSign(privateKey);
            signer.update(data);
            return signer.sign();
        }
    };
}