Example usage for org.bouncycastle.util.encoders Base64.Decoder decode

Introduction

In this page you can find the example usage for org.bouncycastle.util.encoders Base64.Decoder decode.

Prototype

public static byte[] decode(String data) 

Source Link

Document

decode the base 64 encoded String data - whitespace will be ignored.

Usage

From source file:org.hyperledger.fabric.sdk.MemberServicesFabricCAImpl.java

License:Open Source License

/**
 * Enroll the user with member service//from  w  w w  .j a  v  a2  s.c om
 *
 * @param req Enrollment request with the following fields: name, enrollmentSecret
 * @return enrollment
 */
public Enrollment enroll(EnrollmentRequest req) throws EnrollmentException {

    logger.debug(String.format("[MemberServicesFabricCAImpl.enroll] [%s]", req));
    if (req == null) {
        throw new RuntimeException("req is not set");
    }
    final String user = req.getEnrollmentID();
    final String secret = req.getEnrollmentSecret();
    if (StringUtil.isNullOrEmpty(user)) {
        throw new RuntimeException("req.enrollmentID is not set");
    }
    if (StringUtil.isNullOrEmpty(secret)) {
        throw new RuntimeException("req.enrollmentSecret is not set");
    }

    logger.debug("[MemberServicesFabricCAImpl.enroll] Generating keys...");

    try {
        // generate ECDSA keys: signing and encryption keys
        KeyPair signingKeyPair = cryptoPrimitives.ecdsaKeyGen();
        logger.debug("[MemberServicesFabricCAImpl.enroll] Generating keys...done!");
        //  KeyPair encryptionKeyPair = cryptoPrimitives.ecdsaKeyGen();

        PKCS10CertificationRequest csr = cryptoPrimitives.generateCertificationRequest(user, signingKeyPair);
        String pem = cryptoPrimitives.certificationRequestToPEM(csr);
        JsonObjectBuilder factory = Json.createObjectBuilder();
        factory.add("certificate_request", pem);
        JsonObject postObject = factory.build();
        StringWriter stringWriter = new StringWriter();

        JsonWriter jsonWriter = Json.createWriter(new PrintWriter(stringWriter));

        jsonWriter.writeObject(postObject);

        jsonWriter.close();

        String str = stringWriter.toString();

        logger.debug("[MemberServicesFabricCAImpl.enroll] Generating keys...done!");

        String responseBody = httpPost(url + COP_ENROLLMENBASE, str,
                new UsernamePasswordCredentials(user, secret));

        logger.debug("response" + responseBody);

        JsonReader reader = Json.createReader(new StringReader(responseBody));
        JsonObject jsonst = (JsonObject) reader.read();
        String result = jsonst.getString("result");
        boolean success = jsonst.getBoolean("success");
        logger.debug(String.format("[MemberServicesFabricCAImpl] enroll success:[%s], result:[%s]", success,
                result));

        if (!success) {
            EnrollmentException e = new EnrollmentException("COP Failed response success is false. " + result,
                    new Exception());
            logger.error(e.getMessage());
            throw e;
        }

        Base64.Decoder b64dec = Base64.getDecoder();
        String signedPem = new String(b64dec.decode(result.getBytes()));
        logger.info(String.format("[MemberServicesFabricCAImpl] enroll returned pem:[%s]", signedPem));

        Enrollment enrollment = new Enrollment();
        enrollment.setKey(signingKeyPair);
        enrollment.setPublicKey(Hex.toHexString(signingKeyPair.getPublic().getEncoded()));
        enrollment.setCert(signedPem);
        return enrollment;

    } catch (Exception e) {
        EnrollmentException ee = new EnrollmentException(String.format("Failed to enroll user %s ", user), e);
        logger.error(ee.getMessage(), ee);
        throw ee;
    }

}

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