Examples with X509EncodedKeySpec java.security.spec.X509EncodedKeySpec used on opensource projects

Example 41 with X509EncodedKeySpec

use of java.security.spec.X509EncodedKeySpec in project xabber-android by redsolution.

the class AccountTable method getKeyPair.

static KeyPair getKeyPair(Cursor cursor) {
    byte[] publicKeyBytes = cursor.getBlob(cursor.getColumnIndex(Fields.PUBLIC_KEY));
    byte[] privateKeyBytes = cursor.getBlob(cursor.getColumnIndex(Fields.PRIVATE_KEY));
    if (privateKeyBytes == null || publicKeyBytes == null) {
        return null;
    }
    X509EncodedKeySpec publicKeySpec = new X509EncodedKeySpec(publicKeyBytes);
    PKCS8EncodedKeySpec privateKeySpec = new PKCS8EncodedKeySpec(privateKeyBytes);
    PublicKey publicKey;
    PrivateKey privateKey;
    KeyFactory keyFactory;
    try {
        keyFactory = KeyFactory.getInstance("DSA");
        publicKey = keyFactory.generatePublic(publicKeySpec);
        privateKey = keyFactory.generatePrivate(privateKeySpec);
    } catch (NoSuchAlgorithmException | InvalidKeySpecException e) {
        throw new RuntimeException(e);
    }
    return new KeyPair(publicKey, privateKey);
}

Example 42 with X509EncodedKeySpec

use of java.security.spec.X509EncodedKeySpec in project robovm by robovm.

the class OpenSSLECKeyFactory method engineTranslateKey.

@Override
protected Key engineTranslateKey(Key key) throws InvalidKeyException {
    if (key == null) {
        throw new InvalidKeyException("key == null");
    }
    if ((key instanceof OpenSSLECPublicKey) || (key instanceof OpenSSLECPrivateKey)) {
        return key;
    } else if (key instanceof ECPublicKey) {
        ECPublicKey ecKey = (ECPublicKey) key;
        ECPoint w = ecKey.getW();
        ECParameterSpec params = ecKey.getParams();
        try {
            return engineGeneratePublic(new ECPublicKeySpec(w, params));
        } catch (InvalidKeySpecException e) {
            throw new InvalidKeyException(e);
        }
    } else if (key instanceof ECPrivateKey) {
        ECPrivateKey ecKey = (ECPrivateKey) key;
        BigInteger s = ecKey.getS();
        ECParameterSpec params = ecKey.getParams();
        try {
            return engineGeneratePrivate(new ECPrivateKeySpec(s, params));
        } catch (InvalidKeySpecException e) {
            throw new InvalidKeyException(e);
        }
    } else if ((key instanceof PrivateKey) && ("PKCS#8".equals(key.getFormat()))) {
        byte[] encoded = key.getEncoded();
        if (encoded == null) {
            throw new InvalidKeyException("Key does not support encoding");
        }
        try {
            return engineGeneratePrivate(new PKCS8EncodedKeySpec(encoded));
        } catch (InvalidKeySpecException e) {
            throw new InvalidKeyException(e);
        }
    } else if ((key instanceof PublicKey) && ("X.509".equals(key.getFormat()))) {
        byte[] encoded = key.getEncoded();
        if (encoded == null) {
            throw new InvalidKeyException("Key does not support encoding");
        }
        try {
            return engineGeneratePublic(new X509EncodedKeySpec(encoded));
        } catch (InvalidKeySpecException e) {
            throw new InvalidKeyException(e);
        }
    } else {
        throw new InvalidKeyException("Key must be EC public or private key; was " + key.getClass().getName());
    }
}

Example 43 with X509EncodedKeySpec

use of java.security.spec.X509EncodedKeySpec in project robovm by robovm.

the class OpenSSLKey method getPublicKey.

static PublicKey getPublicKey(X509EncodedKeySpec keySpec, int type) throws InvalidKeySpecException {
    X509EncodedKeySpec x509KeySpec = (X509EncodedKeySpec) keySpec;
    final OpenSSLKey key;
    try {
        key = new OpenSSLKey(NativeCrypto.d2i_PUBKEY(x509KeySpec.getEncoded()));
    } catch (Exception e) {
        throw new InvalidKeySpecException(e);
    }
    if (NativeCrypto.EVP_PKEY_type(key.getPkeyContext()) != type) {
        throw new InvalidKeySpecException("Unexpected key type");
    }
    try {
        return key.getPublicKey();
    } catch (NoSuchAlgorithmException e) {
        throw new InvalidKeySpecException(e);
    }
}

Example 44 with X509EncodedKeySpec

use of java.security.spec.X509EncodedKeySpec in project cas by apereo.

the class PublicKeyFactoryBean method createInstance.

@Override
protected PublicKey createInstance() throws Exception {
    LOGGER.debug("Creating public key instance from [{}] using [{}]", this.resource.getFilename(), this.algorithm);
    try (InputStream pubKey = this.resource.getInputStream()) {
        final byte[] bytes = new byte[(int) this.resource.contentLength()];
        pubKey.read(bytes);
        final X509EncodedKeySpec pubSpec = new X509EncodedKeySpec(bytes);
        final KeyFactory factory = KeyFactory.getInstance(this.algorithm);
        return factory.generatePublic(pubSpec);
    }
}

Example 45 with X509EncodedKeySpec

use of java.security.spec.X509EncodedKeySpec in project dq-easy-cloud by dq-open-cloud.

the class DqRSAUtils method verify.

/**
 * RSA验签名检查
 * @param content 待签名数据
 * @param sign 签名值
 * @param  publicKey 公钥
 * @param signAlgorithms 签名算法
 * @param characterEncoding 编码格式
 * @return 布尔值
 */
public static boolean verify(String content, String sign, String publicKey, String signAlgorithms, String characterEncoding) {
    try {
        KeyFactory keyFactory = KeyFactory.getInstance(ALGORITHM);
        byte[] encodedKey = DqBase64Utils.decode(publicKey);
        PublicKey pubKey = keyFactory.generatePublic(new X509EncodedKeySpec(encodedKey));
        java.security.Signature signature = java.security.Signature.getInstance(signAlgorithms);
        signature.initVerify(pubKey);
        signature.update(content.getBytes(characterEncoding));
        return signature.verify(DqBase64Utils.decode(sign));
    } catch (Exception e) {
        e.printStackTrace();
    }
    return false;
}