// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Internal API for to implement the platformKeys and enterprise.platformKeys
// APIs.
[implemented_in = "chrome/browser/extensions/api/platform_keys/platform_keys_api.h"]
namespace platformKeysInternal {
  callback SelectCallback = void (platformKeys.Match[] certs);

  // Invoked by <code>sign</code>.
  // |signature| The signature, a octet string.
  callback SignCallback = void(ArrayBuffer signature);

  // Called back by <code>getPublicKey</code>.
  // |publicKey| The Subject Public Key Info (see X.509) of the requested
  //   certificate.
  // |algorithm| A partial WebCrypto KeyAlgorithm containing all information
  //   that is available from the Subject Public Key Info. It does not contain
  //   signature/hash parameters.
  callback GetPublicKeyCallback = void(ArrayBuffer publicKey, object algorithm);

  interface Functions {
    // See documentation in platformKeys.
    static void selectClientCertificates(
        platformKeys.SelectDetails details,
        SelectCallback callback);

    // Internal version of platformKeys.subtleCrypto.sign and
    // enterprise.platformKeys.Token.subtleCrypto.sign.
    // |tokenId| The id of a Token returned by |getTokens|.
    // |publicKey| The Subject Public Key Info of a key previously generated by
    //     |generateKey| in DER encoding.
    // |hashAlgorithmName| The recognized algorithm name of the hash algorithm,
    //     as specified by WebCrypto, that will be used to digest |data|
    //     before signing. Currently supported are: SHA-{1,256,384,512}.
    //     If instead the algorithm name "none" is provided, no hashing will be
    //     applied, the data is PKCS#1 v1.5 padded but not hashed.
    //     TODO(pneubeck): use an enum once supported:
    //         http://www.crbug.com/385539 .
    // |data| The data to sign.
    // |callback| Called back with the signature of |data|.
    // TODO: Instead of ArrayBuffer should be (ArrayBuffer or ArrayBufferView),
    // or at least (ArrayBuffer or Uint8Array).
    static void sign(DOMString tokenId,
                     ArrayBuffer publicKey,
                     DOMString hashAlgorithmName,
                     ArrayBuffer data,
                     SignCallback callback);

    // Checks whether <code>certificate</code> certifies a key that allows usage
    // of the WebCrypto algorithm <code>algorithmName</code>. If so, calls back
    // <code>callback</code> with the key info and a WebCrypto
    // <code>KeyAlgorithm</code> dictionary describing the key's algorithm. The
    // <code>name</code> property will equal <code>algorithmName</code>.
    // Otherwise, calls back with an error.
    static void getPublicKey(ArrayBuffer certificate,
                             DOMString algorithmName,
                             GetPublicKeyCallback callback);
  };
};
