sdk/fidl/fuchsia.identity.credential/common.fidl

// Copyright 2021 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
library fuchsia.identity.credential;

using zx;

/// A unique label for a given credential.
alias Label = uint64;
/// A low entropy secret key a PIN.
alias LeSecret = vector<bytes>:1024;
/// A high entropy secret.
alias HeSecret = vector<bytes>:1024;

/// The delay schedule for a given credential. This is composed of two options
/// the `attempt_count` which is the number of attempts that are allowed before
/// the `time_delay` in seconds is activated before the next attempt can occur.
type DelayScheduleEntry = struct {
    attempt_count uint32;
    time_delay zx.duration;
};

/// Specific error codes that can be returned by the credential manager.
type CredentialError = flexible enum : uint32 {
    // Check failed due to incorrect Low Entropy(LE) secret.
    INVALID_SECRET = 1;
    // Check failed due to too many attempts as per delay schedule.
    TOO_MANY_ATTEMPTS = 2;
    // The metadata retrieved was corrupted.
    CORRUPTED_METADATA = 3;
    // Label provided isn't present.
    INVALID_LABEL = 4;
    // No free labels available.
    NO_FREE_LABEL = 5;
    // The requested operation is not supported. This means that the
    // the implementation of a new feature is not complete. The request should
    // not be retried.
    UNSUPPORTED_OPERATION = 6;
};