Examples with RSAPublicKey org.xdi.oxauth.model.crypto.signature.RSAPublicKey used on opensource projects

Example 1 with RSAPublicKey

use of org.xdi.oxauth.model.crypto.signature.RSAPublicKey in project oxAuth by GluuFederation.

the class JwtUtil method getPublicKey.

public static PublicKey getPublicKey(String jwksUri, String jwks, SignatureAlgorithm signatureAlgorithm, String keyId) {
    log.debug("Retrieving JWK...");
    JSONObject jsonKeyValue = getJsonKey(jwksUri, jwks, keyId);
    if (jsonKeyValue == null) {
        return null;
    }
    org.xdi.oxauth.model.crypto.PublicKey publicKey = null;
    try {
        String resultKeyId = jsonKeyValue.getString(KEY_ID);
        if (signatureAlgorithm == null) {
            signatureAlgorithm = SignatureAlgorithm.fromString(jsonKeyValue.getString(ALGORITHM));
            if (signatureAlgorithm == null) {
                log.error(String.format("Failed to determine key '%s' signature algorithm", resultKeyId));
                return null;
            }
        }
        JSONObject jsonPublicKey = jsonKeyValue;
        if (jsonKeyValue.has(PUBLIC_KEY)) {
            // Use internal jwks.json format
            jsonPublicKey = jsonKeyValue.getJSONObject(PUBLIC_KEY);
        }
        if (signatureAlgorithm == SignatureAlgorithm.RS256 || signatureAlgorithm == SignatureAlgorithm.RS384 || signatureAlgorithm == SignatureAlgorithm.RS512) {
            //String alg = jsonKeyValue.getString(ALGORITHM);
            //String use = jsonKeyValue.getString(KEY_USE);
            String exp = jsonPublicKey.getString(EXPONENT);
            String mod = jsonPublicKey.getString(MODULUS);
            BigInteger publicExponent = new BigInteger(1, Base64Util.base64urldecode(exp));
            BigInteger modulus = new BigInteger(1, Base64Util.base64urldecode(mod));
            publicKey = new RSAPublicKey(modulus, publicExponent);
        } else if (signatureAlgorithm == SignatureAlgorithm.ES256 || signatureAlgorithm == SignatureAlgorithm.ES384 || signatureAlgorithm == SignatureAlgorithm.ES512) {
            //String alg = jsonKeyValue.getString(ALGORITHM);
            //String use = jsonKeyValue.getString(KEY_USE);
            //String crv = jsonKeyValue.getString(CURVE);
            String xx = jsonPublicKey.getString(X);
            String yy = jsonPublicKey.getString(Y);
            BigInteger x = new BigInteger(1, Base64Util.base64urldecode(xx));
            BigInteger y = new BigInteger(1, Base64Util.base64urldecode(yy));
            publicKey = new ECDSAPublicKey(signatureAlgorithm, x, y);
        }
        if (publicKey != null && jsonKeyValue.has(CERTIFICATE_CHAIN)) {
            final String BEGIN = "-----BEGIN CERTIFICATE-----";
            final String END = "-----END CERTIFICATE-----";
            JSONArray certChain = jsonKeyValue.getJSONArray(CERTIFICATE_CHAIN);
            String certificateString = BEGIN + "\n" + certChain.getString(0) + "\n" + END;
            StringReader sr = new StringReader(certificateString);
            PEMParser pemReader = new PEMParser(sr);
            X509Certificate cert = (X509CertificateObject) pemReader.readObject();
            Certificate certificate = new Certificate(signatureAlgorithm, cert);
            publicKey.setCertificate(certificate);
        }
        if (publicKey != null) {
            publicKey.setKeyId(resultKeyId);
            publicKey.setSignatureAlgorithm(signatureAlgorithm);
        }
    } catch (Exception ex) {
        log.error(ex.getMessage(), ex);
    }
    return publicKey;
}

Example 2 with RSAPublicKey

use of org.xdi.oxauth.model.crypto.signature.RSAPublicKey in project oxAuth by GluuFederation.

the class Certificate method getRsaPublicKey.

public RSAPublicKey getRsaPublicKey() {
    RSAPublicKey rsaPublicKey = null;
    if (x509Certificate != null && x509Certificate.getPublicKey() instanceof BCRSAPublicKey) {
        BCRSAPublicKey publicKey = (BCRSAPublicKey) x509Certificate.getPublicKey();
        rsaPublicKey = new RSAPublicKey(publicKey.getModulus(), publicKey.getPublicExponent());
    }
    return rsaPublicKey;
}

Example 3 with RSAPublicKey

use of org.xdi.oxauth.model.crypto.signature.RSAPublicKey in project oxAuth by GluuFederation.

the class RSASigner method validateSignature.

@Override
public boolean validateSignature(String signingInput, String signature) throws SignatureException {
    if (getSignatureAlgorithm() == null) {
        throw new SignatureException("The signature algorithm is null");
    }
    if (rsaPublicKey == null) {
        throw new SignatureException("The RSA public key is null");
    }
    if (signingInput == null) {
        throw new SignatureException("The signing input is null");
    }
    String algorithm = null;
    switch(getSignatureAlgorithm()) {
        case RS256:
            algorithm = "SHA-256";
            break;
        case RS384:
            algorithm = "SHA-384";
            break;
        case RS512:
            algorithm = "SHA-512";
            break;
        default:
            throw new SignatureException("Unsupported signature algorithm");
    }
    ASN1InputStream aIn = null;
    try {
        byte[] sigBytes = Base64Util.base64urldecode(signature);
        byte[] sigInBytes = signingInput.getBytes(Util.UTF8_STRING_ENCODING);
        RSAPublicKeySpec rsaPublicKeySpec = new RSAPublicKeySpec(rsaPublicKey.getModulus(), rsaPublicKey.getPublicExponent());
        KeyFactory keyFactory = KeyFactory.getInstance("RSA", "BC");
        PublicKey publicKey = keyFactory.generatePublic(rsaPublicKeySpec);
        Cipher cipher = Cipher.getInstance("RSA/None/PKCS1Padding", "BC");
        cipher.init(Cipher.DECRYPT_MODE, publicKey);
        byte[] decSig = cipher.doFinal(sigBytes);
        aIn = new ASN1InputStream(decSig);
        ASN1Sequence seq = (ASN1Sequence) aIn.readObject();
        MessageDigest hash = MessageDigest.getInstance(algorithm, "BC");
        hash.update(sigInBytes);
        ASN1OctetString sigHash = (ASN1OctetString) seq.getObjectAt(1);
        return MessageDigest.isEqual(hash.digest(), sigHash.getOctets());
    } catch (IOException e) {
        throw new SignatureException(e);
    } catch (NoSuchAlgorithmException e) {
        throw new SignatureException(e);
    } catch (InvalidKeyException e) {
        throw new SignatureException(e);
    } catch (InvalidKeySpecException e) {
        throw new SignatureException(e);
    } catch (NoSuchPaddingException e) {
        throw new SignatureException(e);
    } catch (BadPaddingException e) {
        throw new SignatureException(e);
    } catch (NoSuchProviderException e) {
        throw new SignatureException(e);
    } catch (IllegalBlockSizeException e) {
        throw new SignatureException(e);
    } catch (Exception e) {
        throw new SignatureException(e);
    } finally {
        IOUtils.closeQuietly(aIn);
    }
}

Example 4 with RSAPublicKey

use of org.xdi.oxauth.model.crypto.signature.RSAPublicKey in project oxAuth by GluuFederation.

the class SignatureTest method generateRS256Keys.

@Test
public void generateRS256Keys() throws Exception {
    showTitle("TEST: generateRS256Keys");
    KeyFactory<RSAPrivateKey, RSAPublicKey> keyFactory = new RSAKeyFactory(SignatureAlgorithm.RS256, "CN=Test CA Certificate");
    Key<RSAPrivateKey, RSAPublicKey> key = keyFactory.getKey();
    RSAPrivateKey privateKey = key.getPrivateKey();
    RSAPublicKey publicKey = key.getPublicKey();
    Certificate certificate = key.getCertificate();
    System.out.println(key);
    String signingInput = "Hello World!";
    RSASigner rsaSigner1 = new RSASigner(SignatureAlgorithm.RS256, privateKey);
    String signature = rsaSigner1.generateSignature(signingInput);
    RSASigner rsaSigner2 = new RSASigner(SignatureAlgorithm.RS256, publicKey);
    assertTrue(rsaSigner2.validateSignature(signingInput, signature));
    RSASigner rsaSigner3 = new RSASigner(SignatureAlgorithm.RS256, certificate);
    assertTrue(rsaSigner3.validateSignature(signingInput, signature));
}

Example 5 with RSAPublicKey

use of org.xdi.oxauth.model.crypto.signature.RSAPublicKey in project oxAuth by GluuFederation.

the class SignatureTest method generateRS512Keys.

@Test
public void generateRS512Keys() throws Exception {
    showTitle("TEST: generateRS512Keys");
    KeyFactory<RSAPrivateKey, RSAPublicKey> keyFactory = new RSAKeyFactory(SignatureAlgorithm.RS512, "CN=Test CA Certificate");
    Key<RSAPrivateKey, RSAPublicKey> key = keyFactory.getKey();
    RSAPrivateKey privateKey = key.getPrivateKey();
    RSAPublicKey publicKey = key.getPublicKey();
    Certificate certificate = key.getCertificate();
    System.out.println(key);
    String signingInput = "Hello World!";
    RSASigner rsaSigner1 = new RSASigner(SignatureAlgorithm.RS512, privateKey);
    String signature = rsaSigner1.generateSignature(signingInput);
    RSASigner rsaSigner2 = new RSASigner(SignatureAlgorithm.RS512, publicKey);
    assertTrue(rsaSigner2.validateSignature(signingInput, signature));
    RSASigner rsaSigner3 = new RSASigner(SignatureAlgorithm.RS512, certificate);
    assertTrue(rsaSigner3.validateSignature(signingInput, signature));
}