blob: 30e80e0783d3d421ce9f62c632c8f4ba77d7806f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
/*
* Copyright (C) 2015, Google Inc. and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.transport;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.transport.PushCertificate.NonceStatus;
/**
* A NonceGenerator is used to create a nonce to be sent out to the pusher who
* will sign the nonce to prove it is not a replay attack on the push
* certificate.
*
* @since 4.0
*/
public interface NonceGenerator {
/**
* Create nonce to be signed by the pusher
*
* @param db
* The repository which should be used to obtain a unique String
* such that the pusher cannot forge nonces by pushing to another
* repository at the same time as well and reusing the nonce.
* @param timestamp
* The current time in seconds.
* @return The nonce to be signed by the pusher
*/
String createNonce(Repository db, long timestamp);
/**
* Verify trustworthiness of the received nonce.
*
* @param received
* The nonce which was received from the server
* @param sent
* The nonce which was originally sent out to the client.
* @param db
* The repository which should be used to obtain a unique String
* such that the pusher cannot forge nonces by pushing to another
* repository at the same time as well and reusing the nonce.
* @param allowSlop
* If the receiving backend is able to generate slop. This is
* the case for serving via http protocol using more than one
* http frontend. The client would talk to different http
* frontends, which may have a slight difference of time due to
* @param slop
* If `allowSlop` is true, this specifies the number of seconds
* which we allow as slop.
* @return a NonceStatus indicating the trustworthiness of the received
* nonce.
*/
NonceStatus verify(String received, String sent,
Repository db, boolean allowSlop, int slop);
}
|
