| // Copyright 2020 The SwiftShader Authors. All Rights Reserved. | |
| // | |
| // Licensed under the Apache License, Version 2.0 (the "License"); | |
| // you may not use this file except in compliance with the License. | |
| // You may obtain a copy of the License at | |
| // | |
| // http://www.apache.org/licenses/LICENSE-2.0 | |
| // | |
| // Unless required by applicable law or agreed to in writing, software | |
| // distributed under the License is distributed on an "AS IS" BASIS, | |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| // See the License for the specific language governing permissions and | |
| // limitations under the License. | |
| package util | |
| import ( | |
| "fmt" | |
| "io" | |
| "golang.org/x/crypto/openpgp" | |
| ) | |
| // CheckPGP verifies that data has the PGP signature sig and was signed with the | |
| // PGP key key. | |
| func CheckPGP(data, sig, key io.Reader) error { | |
| keyring, err := openpgp.ReadArmoredKeyRing(key) | |
| if err != nil { | |
| return fmt.Errorf("Failed to read pgp key: %v", err) | |
| } | |
| if _, err := openpgp.CheckDetachedSignature(keyring, data, sig); err != nil { | |
| return fmt.Errorf("Failed to verify pgp: %v", err) | |
| } | |
| return nil | |
| } |