Examples with Signature java.security.Signature used on opensource projects

Example 56 with Signature

use of java.security.Signature in project android_frameworks_base by ResurrectionRemix.

the class CertPinInstallReceiverTest method createSignature.

private String createSignature(String content, String version, String requiredHash) throws Exception {
    Signature signer = Signature.getInstance("SHA512withRSA");
    signer.initSign(createKey());
    signer.update(content.trim().getBytes());
    signer.update(version.trim().getBytes());
    signer.update(requiredHash.getBytes());
    String sig = new String(Base64.encode(signer.sign(), Base64.DEFAULT));
    assertEquals(true, verifySignature(content, version, requiredHash, sig, createCertificate()));
    return sig;
}

Example 57 with Signature

use of java.security.Signature in project android_frameworks_base by ResurrectionRemix.

the class CertPinInstallReceiverTest method verifySignature.

public boolean verifySignature(String content, String version, String requiredPrevious, String signature, X509Certificate cert) throws Exception {
    Signature signer = Signature.getInstance("SHA512withRSA");
    signer.initVerify(cert);
    signer.update(content.trim().getBytes());
    signer.update(version.trim().getBytes());
    signer.update(requiredPrevious.trim().getBytes());
    return signer.verify(Base64.decode(signature.getBytes(), Base64.DEFAULT));
}

Example 58 with Signature

use of java.security.Signature in project robovm by robovm.

the class X509Util method calculateSignature.

static byte[] calculateSignature(DERObjectIdentifier sigOid, String sigName, String provider, PrivateKey key, SecureRandom random, ASN1Encodable object) throws IOException, NoSuchProviderException, NoSuchAlgorithmException, InvalidKeyException, SignatureException {
    Signature sig;
    if (sigOid == null) {
        throw new IllegalStateException("no signature algorithm specified");
    }
    sig = X509Util.getSignatureInstance(sigName, provider);
    if (random != null) {
        sig.initSign(key, random);
    } else {
        sig.initSign(key);
    }
    sig.update(object.toASN1Primitive().getEncoded(ASN1Encoding.DER));
    return sig.sign();
}

Example 59 with Signature

use of java.security.Signature in project GNS by MobilityFirst.

the class CryptoUtils method signDigestOfMessage.

/**
     * Signs a digest of a message using private key of the given guid.
     *
     * @param guidEntry
     * @param message
     * @return a signed digest of the message string encoded as a hex string
     * @throws InvalidKeyException
     * @throws NoSuchAlgorithmException
     * @throws SignatureException
     * @throws java.io.UnsupportedEncodingException
     *
     * arun: This method need to be synchronized over the signature
     * instance, otherwise it will result in corrupted signatures.
     */
public static String signDigestOfMessage(GuidEntry guidEntry, String message) throws ClientException {
    try {
        Signature signatureInstance = getSignatureInstance();
        synchronized (signatureInstance) {
            signatureInstance.initSign(guidEntry.getPrivateKey());
            // iOS client uses UTF-8 - should switch to ISO-8859-1 to be consistent with
            // secret key version
            signatureInstance.update(message.getBytes("UTF-8"));
            byte[] signedString = signatureInstance.sign();
            // We used to encode this as a hex so we could send it with the html without
            // encoding. Not really necessary anymore for the socket based client,
            // but the iOS client does as well so we need to keep it like this.
            // Also note that the secret based method doesn't do this - it just returns a string
            // using the ISO-8859-1 charset.
            String result = DatatypeConverter.printHexBinary(signedString);
            //String result = ByteUtils.toHex(signedString);
            return result;
        }
    } catch (InvalidKeyException | UnsupportedEncodingException | SignatureException e) {
        throw new ClientException("Error encoding message", e);
    }
}

Example 60 with Signature

use of java.security.Signature in project nhin-d by DirectProject.

the class PKCS11OperationTests method testSignDataOnToken.

@Test
public void testSignDataOnToken() throws Exception {
    final String pkcs11ProvName = TestUtils.setupSafeNetToken();
    if (!StringUtils.isEmpty(pkcs11ProvName)) {
        final KeyStore ks = KeyStore.getInstance("PKCS11");
        ks.load(null, "1Kingpuff".toCharArray());
        final Enumeration<String> aliases = ks.aliases();
        while (aliases.hasMoreElements()) {
            final String alias = aliases.nextElement();
            System.out.println("\r\nAlias Name: " + alias);
            final KeyStore.Entry entry = ks.getEntry(alias, null);
            System.out.println("Key Type: " + entry.getClass());
            if (entry instanceof KeyStore.PrivateKeyEntry) {
                final KeyStore.PrivateKeyEntry pEntry = (KeyStore.PrivateKeyEntry) entry;
                final Signature sig = Signature.getInstance("SHA256withRSA", pkcs11ProvName);
                sig.initSign(pEntry.getPrivateKey());
                // sign the data
                String starttext = "Some Text to Encrypt and Sign as an Example";
                final byte[] bytes = starttext.getBytes();
                sig.update(bytes);
                final byte[] theSignature = sig.sign();
                assertNotNull(theSignature);
                System.out.println("Data Signed");
                break;
            }
        }
    }
}