1// Copyright 2017 Google Inc. 2// 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// http://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//////////////////////////////////////////////////////////////////////////////// 16 17// Definitions for common cryptographic enum types. 18syntax = "proto3"; 19 20package google.crypto.tink; 21 22option java_package = "com.google.crypto.tink.proto"; 23option java_multiple_files = true; 24option go_package = "github.com/google/tink/go/proto/common_go_proto"; 25 26enum EllipticCurveType { 27 UNKNOWN_CURVE = 0; 28 NIST_P256 = 2; 29 NIST_P384 = 3; 30 NIST_P521 = 4; 31 CURVE25519 = 5; 32} 33 34enum EcPointFormat { 35 UNKNOWN_FORMAT = 0; 36 UNCOMPRESSED = 1; 37 COMPRESSED = 2; 38 // Like UNCOMPRESSED but without the \x04 prefix. Crunchy uses this format. 39 // DO NOT USE unless you are a Crunchy user moving to Tink. 40 DO_NOT_USE_CRUNCHY_UNCOMPRESSED = 3; 41} 42 43enum HashType { 44 UNKNOWN_HASH = 0; 45 SHA1 = 1; // Using SHA1 for digital signature is deprecated but HMAC-SHA1 is 46 // fine. 47 SHA384 = 2; 48 SHA256 = 3; 49 SHA512 = 4; 50 SHA224 = 5; 51} 52