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 hpke 18 19import ( 20 "bytes" 21 "fmt" 22 "testing" 23) 24 25func TestChaCha20Poly1305AEADSealOpen(t *testing.T) { 26 i := 0 27 vecs := aeadRFCVectors(t) 28 for k, v := range vecs { 29 if k.aeadID != chaCha20Poly1305 { 30 continue 31 } 32 33 i++ 34 t.Run(fmt.Sprintf("%d", k.id), func(t *testing.T) { 35 aead, err := newAEAD(k.aeadID) 36 if err != nil { 37 t.Fatalf("newAEAD(%d) err = %v, want nil", k.aeadID, err) 38 } 39 40 ciphertext, err := aead.seal(v.key, v.nonce, v.plaintext, v.associatedData) 41 if err != nil { 42 t.Fatalf("seal err = %v, want nil", err) 43 } 44 if !bytes.Equal(ciphertext, v.ciphertext) { 45 t.Errorf("seal = %x, want %x", ciphertext, v.ciphertext) 46 } 47 48 plaintext, err := aead.open(v.key, v.nonce, v.ciphertext, v.associatedData) 49 if err != nil { 50 t.Fatalf("open err = %v, want nil", err) 51 } 52 if !bytes.Equal(plaintext, v.plaintext) { 53 t.Errorf("open = %x, want %x", plaintext, v.plaintext) 54 } 55 }) 56 } 57 if i < 2 { 58 t.Errorf("number of vectors tested = %d, want > %d", i, 2) 59 } 60} 61