xref: /aosp_15_r20/external/anonymous-counting-tokens/act/act.proto (revision a26f13018b999b025c962678da434c0a5aec4dae) 
1/*
2 * Copyright 2023 Google LLC.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     https://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16syntax = "proto3";
17
18package private_join_and_compute.anonymous_counting_tokens;
19
20import "act/act_v0/act_v0.proto";
21
22option java_multiple_files = true;
23
24// The parameters defining the ACT scheme.
25message SchemeParameters {
26  oneof scheme_parameters_oneof {
27    SchemeParametersV0 scheme_parameters_v0 = 1;
28  }
29}
30
31message ServerParameters {
32  ServerPublicParameters public_parameters = 1;
33  ServerPrivateParameters private_parameters = 2;
34}
35
36// The Server's public parameters for the ACT scheme.
37message ServerPublicParameters {
38  oneof server_public_parameters_oneof {
39    ServerPublicParametersV0 server_public_parameters_v0 = 1;
40  }
41}
42
43// The Server's private parameters for the ACT scheme.
44message ServerPrivateParameters {
45  oneof server_private_parameters_oneof {
46    ServerPrivateParametersV0 server_private_parameters_v0 = 1;
47  }
48}
49
50message ClientParameters {
51  ClientPublicParameters public_parameters = 1;
52  ClientPrivateParameters private_parameters = 2;
53}
54
55// The Client's public parameters for the ACT scheme.
56message ClientPublicParameters {
57  oneof client_public_parameters_oneof {
58    ClientPublicParametersV0 client_public_parameters_v0 = 1;
59  }
60}
61
62// The Client's private parameters for the ACT scheme.
63message ClientPrivateParameters {
64  oneof client_private_parameters_oneof {
65    ClientPrivateParametersV0 client_private_parameters_v0 = 1;
66  }
67}
68
69// The Client's token request. Can correspond to a batch of tokens.
70message TokensRequest {
71  oneof tokens_request_oneof {
72    TokensRequestV0 tokens_request_v0 = 1;
73  }
74}
75
76// Private state corresponding to the Client's token request, needed to recover
77// the tokens from the server's response.
78message TokensRequestPrivateState {
79  oneof tokens_request_private_state_oneof {
80    TokensRequestPrivateStateV0 tokens_request_private_state_v0 = 1;
81  }
82}
83
84// The Server's response to a TokensRequest. Can correspond to a batch of
85// tokens.
86message TokensResponse {
87  oneof tokens_response_oneof {
88    TokensResponseV0 tokens_response_v0 = 1;
89  }
90}
91
92// An actual token recovered from the TokenResponse.
93message Token {
94  reserved 1;
95
96  oneof token_oneof {
97    TokenV0 token_v0 = 2;
98  }
99
100  // Serialized BigNum corresponding to the nonce for this token.
101  bytes nonce_bytes = 3;
102}
103