Example usage for org.bouncycastle.asn1.pkcs PrivateKeyInfo toASN1Primitive

Introduction

In this page you can find the example usage for org.bouncycastle.asn1.pkcs PrivateKeyInfo toASN1Primitive.

Prototype

public ASN1Primitive toASN1Primitive() 

Source Link

Usage

From source file:com.github.autermann.sockets.ssl.SSLUtils.java

License:Apache License

private static PrivateKey createPrivateKey(PemObject privatePemObject)
        throws IOException, InvalidKeySpecException, NoSuchAlgorithmException {
    AlgorithmIdentifier algId = new AlgorithmIdentifier(PKCSObjectIdentifiers.rsaEncryption, DERNull.INSTANCE);
    RSAPrivateKey instance = RSAPrivateKey.getInstance(privatePemObject.getContent());
    PrivateKeyInfo privateKeyInfo = new PrivateKeyInfo(algId, instance);
    return createKeyFromDER(privateKeyInfo.toASN1Primitive().getEncoded());
}

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From source file:org.globus.gsi.bc.BouncyCastleOpenSSLKey.java

License:Apache License

protected PrivateKey getKey(String alg, byte[] data) throws GeneralSecurityException {
    if (alg.equals("RSA")) {
        try {/*from   w w w  .  ja va 2s.c  o m*/
            if (data.length == 0) {
                throw new GeneralSecurityException("Cannot process empty byte stream.");
            }
            ByteArrayInputStream bis = new ByteArrayInputStream(data);
            ASN1InputStream derin = new ASN1InputStream(bis);
            ASN1Primitive keyInfo = derin.readObject();

            ASN1ObjectIdentifier rsaOid = PKCSObjectIdentifiers.rsaEncryption;
            AlgorithmIdentifier rsa = new AlgorithmIdentifier(rsaOid);
            PrivateKeyInfo pkeyinfo = new PrivateKeyInfo(rsa, keyInfo);
            ASN1Primitive derkey = pkeyinfo.toASN1Primitive();
            byte[] keyData = BouncyCastleUtil.toByteArray(derkey);
            // The DER object needs to be mangled to
            // create a proper ProvateKeyInfo object
            PKCS8EncodedKeySpec spec = new PKCS8EncodedKeySpec(keyData);
            KeyFactory kfac = KeyFactory.getInstance("RSA");

            return kfac.generatePrivate(spec);
        } catch (IOException e) {
            // that should never happen
            return null;
        }

    } else {
        return null;
    }
}

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