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

Example 36 with SignatureException

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

the class DSABase method engineSign.

protected byte[] engineSign() throws SignatureException {
    byte[] hash = new byte[digest.getDigestSize()];
    digest.doFinal(hash, 0);
    try {
        BigInteger[] sig = signer.generateSignature(hash);
        return encoder.encode(sig[0], sig[1]);
    } catch (Exception e) {
        throw new SignatureException(e.toString());
    }
}

Example 37 with SignatureException

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

the class DSASigner method engineVerify.

protected boolean engineVerify(byte[] sigBytes) throws SignatureException {
    byte[] hash = new byte[digest.getDigestSize()];
    digest.doFinal(hash, 0);
    BigInteger[] sig;
    try {
        sig = derDecode(sigBytes);
    } catch (Exception e) {
        throw new SignatureException("error decoding signature bytes.");
    }
    return signer.verifySignature(hash, sig[0], sig[1]);
}

Example 38 with SignatureException

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

the class OpenSSLX509Certificate method verifyInternal.

private void verifyInternal(PublicKey key, String sigProvider) throws CertificateException, NoSuchAlgorithmException, InvalidKeyException, NoSuchProviderException, SignatureException {
    String sigAlg = getSigAlgName();
    if (sigAlg == null) {
        sigAlg = getSigAlgOID();
    }
    final Signature sig;
    if (sigProvider == null) {
        sig = Signature.getInstance(sigAlg);
    } else {
        sig = Signature.getInstance(sigAlg, sigProvider);
    }
    sig.initVerify(key);
    sig.update(getTBSCertificate());
    if (!sig.verify(getSignature())) {
        throw new SignatureException("signature did not verify");
    }
}

Example 39 with SignatureException

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

the class SignatureTest method testVerify_NONEwithRSA_Key_SignatureTooLarge_Failure.

public void testVerify_NONEwithRSA_Key_SignatureTooLarge_Failure() throws Exception {
    KeyFactory kf = KeyFactory.getInstance("RSA");
    RSAPublicKeySpec pubKeySpec = new RSAPublicKeySpec(RSA_2048_modulus, RSA_2048_publicExponent);
    PublicKey pubKey = kf.generatePublic(pubKeySpec);
    Signature sig = Signature.getInstance("NONEwithRSA");
    sig.initVerify(pubKey);
    sig.update(Vector1Data);
    byte[] invalidSignature = new byte[NONEwithRSA_Vector1Signature.length * 2];
    System.arraycopy(NONEwithRSA_Vector1Signature, 0, invalidSignature, 0, NONEwithRSA_Vector1Signature.length);
    System.arraycopy(NONEwithRSA_Vector1Signature, 0, invalidSignature, NONEwithRSA_Vector1Signature.length, NONEwithRSA_Vector1Signature.length);
    try {
        sig.verify(invalidSignature);
        fail("Should throw exception when signature is too large");
    } catch (SignatureException expected) {
    }
}

Example 40 with SignatureException

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

the class X509CRLObject method verify.

public void verify(PublicKey key, String sigProvider) throws CRLException, NoSuchAlgorithmException, InvalidKeyException, NoSuchProviderException, SignatureException {
    if (!c.getSignatureAlgorithm().equals(c.getTBSCertList().getSignature())) {
        throw new CRLException("Signature algorithm on CertificateList does not match TBSCertList.");
    }
    Signature sig;
    if (sigProvider != null) {
        sig = Signature.getInstance(getSigAlgName(), sigProvider);
    } else {
        sig = Signature.getInstance(getSigAlgName());
    }
    sig.initVerify(key);
    sig.update(this.getTBSCertList());
    if (!sig.verify(this.getSignature())) {
        throw new SignatureException("CRL does not verify with supplied public key.");
    }
}