Java RSAPrivateKey.getInstance方法代码示例

import org.bouncycastle.asn1.pkcs.RSAPrivateKey; //导入方法依赖的package包/类
public static APrivateKey getRSAPrivateKey(byte[] b) throws Exception
{
	ASN1InputStream in = new ASN1InputStream(b);
	try
	{
		ASN1Primitive x = in.readObject();
		RSAPrivateKey k = RSAPrivateKey.getInstance(x);

		return new APrivateKey(new RSAPrivateCrtKeyParameters
		(
			k.getModulus(), 
			k.getPublicExponent(),
			k.getPrivateExponent(),
			k.getPrime1(),
			k.getPrime2(),
			k.getExponent1(),
			k.getExponent2(),
			k.getCoefficient()
		));
	}
	finally
	{
		CKit.close(in);
	}
}
 

import org.bouncycastle.asn1.pkcs.RSAPrivateKey; //导入方法依赖的package包/类
public PrivateKey generatePrivate(PrivateKeyInfo keyInfo)
    throws IOException
{
    ASN1ObjectIdentifier algOid = keyInfo.getPrivateKeyAlgorithm().getAlgorithm();

    if (RSAUtil.isRsaOid(algOid))
    {
        RSAPrivateKey rsaPrivKey = RSAPrivateKey.getInstance(keyInfo.parsePrivateKey());

        if (rsaPrivKey.getCoefficient().intValue() == 0)
        {
            return new BCRSAPrivateKey(rsaPrivKey);
        }
        else
        {
            return new BCRSAPrivateCrtKey(keyInfo);
        }
    }
    else
    {
        throw new IOException("algorithm identifier " + algOid + " in key not recognised");
    }
}
 

import org.bouncycastle.asn1.pkcs.RSAPrivateKey; //导入方法依赖的package包/类
static AsymmetricKeyParameter loadPrivateKeyResource(String resource)
    throws IOException
{

    PemObject pem = loadPemResource(resource);
    if (pem.getType().endsWith("RSA PRIVATE KEY"))
    {
        RSAPrivateKey rsa = RSAPrivateKey.getInstance(pem.getContent());
        return new RSAPrivateCrtKeyParameters(rsa.getModulus(), rsa.getPublicExponent(),
            rsa.getPrivateExponent(), rsa.getPrime1(), rsa.getPrime2(), rsa.getExponent1(),
            rsa.getExponent2(), rsa.getCoefficient());
    }
    if (pem.getType().endsWith("PRIVATE KEY"))
    {
        return PrivateKeyFactory.createKey(pem.getContent());
    }
    throw new IllegalArgumentException("'resource' doesn't specify a valid private key");
}
 

import org.bouncycastle.asn1.pkcs.RSAPrivateKey; //导入方法依赖的package包/类
protected PrivateKey engineGeneratePrivate(
    KeySpec keySpec)
    throws InvalidKeySpecException
{
    if (keySpec instanceof PKCS8EncodedKeySpec)
    {
        try
        {
            return generatePrivate(PrivateKeyInfo.getInstance(((PKCS8EncodedKeySpec)keySpec).getEncoded()));
        }
        catch (Exception e)
        {
            //
            // in case it's just a RSAPrivateKey object... -- openSSL produces these
            //
            try
            {
                return new BCRSAPrivateCrtKey(
                    RSAPrivateKey.getInstance(((PKCS8EncodedKeySpec)keySpec).getEncoded()));
            }
            catch (Exception ex)
            {
                throw new ExtendedInvalidKeySpecException("unable to process key spec: " + e.toString(), e);
            }
        }
    }
    else if (keySpec instanceof RSAPrivateCrtKeySpec)
    {
        return new BCRSAPrivateCrtKey((RSAPrivateCrtKeySpec)keySpec);
    }
    else if (keySpec instanceof RSAPrivateKeySpec)
    {
        return new BCRSAPrivateKey((RSAPrivateKeySpec)keySpec);
    }

    throw new InvalidKeySpecException("Unknown KeySpec type: " + keySpec.getClass().getName());
}
 

import org.bouncycastle.asn1.pkcs.RSAPrivateKey; //导入方法依赖的package包/类
/**
 * construct an RSA key from a private key info object.
 */
BCRSAPrivateCrtKey(
    PrivateKeyInfo info)
    throws IOException
{
    this(RSAPrivateKey.getInstance(info.parsePrivateKey()));
}
 

import org.bouncycastle.asn1.pkcs.RSAPrivateKey; //导入方法依赖的package包/类
public void loadKeys() {
    try {
        FileInputStream idCertIS = new FileInputStream(new File("keys/identity.crt"));
        FileInputStream linkCertIS = new FileInputStream(new File("keys/link.crt"));
        FileInputStream authCertIS = new FileInputStream(new File("keys/auth.crt"));

        CertificateFactory cf = null;
        cf = CertificateFactory.getInstance("X.509");

        identityCert = (X509Certificate) cf.generateCertificate(idCertIS);
        log.info("Our Identity Cert Digest: " + Hex.toHexString(TorCrypto.getSHA1().digest(TorCrypto.publicKeyToASN1((RSAPublicKey) identityCert.getPublicKey()))));

        linkCert = (X509Certificate) cf.generateCertificate(linkCertIS);
        log.info("Our Link Cert Digest: " + Hex.toHexString(TorCrypto.getSHA1().digest(TorCrypto.publicKeyToASN1((RSAPublicKey) linkCert.getPublicKey()))));

        authCert = (X509Certificate) cf.generateCertificate(authCertIS);
        log.info("Our Auth Cert Digest: " + Hex.toHexString(TorCrypto.getSHA1().digest(TorCrypto.publicKeyToASN1((RSAPublicKey) authCert.getPublicKey()))));

        identityPubKey = (RSAPublicKey) identityCert.getPublicKey();

        FileReader in = new FileReader("keys/identity.key");
        identityPrivKey = RSAPrivateKey.getInstance(new PemReader(in).readPemObject().getContent());
    } catch (CertificateException | IOException e) {
        log.error("Unable to load server public key");
        System.exit(1);
    }
}
 

import org.bouncycastle.asn1.pkcs.RSAPrivateKey; //导入方法依赖的package包/类
private void baseOaepTest(
    int     id,
    byte[]  pubKeyEnc,
    byte[]  privKeyEnc,
    byte[]  output)
    throws Exception
{
    ByteArrayInputStream    bIn = new ByteArrayInputStream(pubKeyEnc);
    ASN1InputStream         dIn = new ASN1InputStream(bIn);

    //
    // extract the public key info.
    //
    RSAPublicKey pubStruct;

    pubStruct = RSAPublicKey.getInstance(new SubjectPublicKeyInfo((ASN1Sequence)dIn.readObject()).parsePublicKey());


    bIn = new ByteArrayInputStream(privKeyEnc);
    dIn = new ASN1InputStream(bIn);

    //
    // extract the private key info.
    //
    RSAPrivateKey privStruct;

    privStruct = RSAPrivateKey.getInstance(new PrivateKeyInfo((ASN1Sequence)dIn.readObject()).parsePrivateKey());

    RSAKeyParameters    pubParameters = new RSAKeyParameters(
                                                false,
                                                pubStruct.getModulus(),
                                                pubStruct.getPublicExponent());

    RSAKeyParameters    privParameters = new RSAPrivateCrtKeyParameters(
                                                privStruct.getModulus(),
                                                privStruct.getPublicExponent(),
                                                privStruct.getPrivateExponent(),
                                                privStruct.getPrime1(),
                                                privStruct.getPrime2(),
                                                privStruct.getExponent1(),
                                                privStruct.getExponent2(),
                                                privStruct.getCoefficient());

    byte[]  input = new byte[]
                { (byte)0x54, (byte)0x85, (byte)0x9b, (byte)0x34, (byte)0x2c, (byte)0x49, (byte)0xea, (byte)0x2a };

    encDec("id(" + id + ")", pubParameters, privParameters, seed, input, output);

}