1// Copyright 2022 Google LLC 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 17package testkeyset_test 18 19import ( 20 "testing" 21 22 "github.com/google/go-cmp/cmp" 23 "github.com/google/tink/go/insecurecleartextkeyset" 24 "github.com/google/tink/go/keyset" 25 "github.com/google/tink/go/mac" 26 "github.com/google/tink/go/testkeyset" 27 tinkpb "github.com/google/tink/go/proto/tink_go_proto" 28) 29 30func makeKeyset(template *tinkpb.KeyTemplate) (*tinkpb.Keyset, error) { 31 h, err := keyset.NewHandle(template) 32 if err != nil { 33 return nil, err 34 } 35 return insecurecleartextkeyset.KeysetMaterial(h), nil 36} 37 38func TestNewHandleCallsAreConsistent(t *testing.T) { 39 ks, err := makeKeyset(mac.HMACSHA256Tag128KeyTemplate()) 40 if err != nil { 41 t.Fatalf("makeKeyset(mac.HMACSHA256Tag128KeyTemplate()) err = %v, want nil", err) 42 } 43 handle1, err := testkeyset.NewHandle(ks) 44 if err != nil { 45 t.Fatalf("testkeyset.NewHandle() err = %v, want nil", err) 46 } 47 p1, err := mac.New(handle1) 48 if err != nil { 49 t.Fatalf("mac.New(handle1) err = %v, want nil", err) 50 } 51 p2, err := mac.New(testkeyset.KeysetHandle(ks)) 52 if err != nil { 53 t.Fatalf("mac.New(testkeyset.KeysetHandle(ks)) err = %v, want nil", err) 54 } 55 data := []byte("data") 56 m1, err := p1.ComputeMAC(data) 57 if err != nil { 58 t.Fatalf("p1.ComputeMAC(data) err = %v, want nil", err) 59 } 60 m2, err := p2.ComputeMAC(data) 61 if err != nil { 62 t.Fatalf("p2.ComputeMAC(data) err = %v, want nil", err) 63 } 64 if !cmp.Equal(m1, m2) { 65 t.Errorf("MAC mistmatch, got = %v, want %v", m1, m2) 66 } 67} 68