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// Copyright 2022 Google LLC
//
// 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 stubkeymanager defines key managers for testing primitives.
package stubkeymanager
import (
"io"
"google.golang.org/protobuf/proto"
"github.com/tink-crypto/tink-go/v2/core/registry"
"github.com/tink-crypto/tink-go/v2/internal/internalregistry"
tinkpb "github.com/tink-crypto/tink-go/v2/proto/tink_go_proto"
)
// StubKeyManager is a key manager for testing.
type StubKeyManager struct {
URL string
Prim any
Key proto.Message
KeyData *tinkpb.KeyData
}
var _ (registry.KeyManager) = (*StubKeyManager)(nil)
// Primitive returns the stub primitive.
func (km *StubKeyManager) Primitive(serializedKey []byte) (any, error) {
return km.Prim, nil
}
// NewKey returns the stub Key.
func (km *StubKeyManager) NewKey(serializedKeyFormat []byte) (proto.Message, error) {
return km.Key, nil
}
// NewKeyData returns the stub KeyData.
func (km *StubKeyManager) NewKeyData(serializedKeyFormat []byte) (*tinkpb.KeyData, error) {
return km.KeyData, nil
}
// DoesSupport returns true if this KeyManager supports key type identified by typeURL.
func (km *StubKeyManager) DoesSupport(typeURL string) bool {
return typeURL == km.URL
}
// TypeURL returns the stub type url.
func (km *StubKeyManager) TypeURL() string {
return km.URL
}
// StubPrivateKeyManager is a private key manager for testing.
type StubPrivateKeyManager struct {
StubKeyManager
PubKeyData *tinkpb.KeyData
}
var _ (registry.PrivateKeyManager) = (*StubPrivateKeyManager)(nil)
// PublicKeyData returns the stub public key data.
func (skm *StubPrivateKeyManager) PublicKeyData(serializedKey []byte) (*tinkpb.KeyData, error) {
return skm.PubKeyData, nil
}
// StubDerivableKeyManager is a derivable key manager for testing.
type StubDerivableKeyManager struct {
StubKeyManager
KeyMatType tinkpb.KeyData_KeyMaterialType
DerKey proto.Message
DerErr error
}
var _ (internalregistry.DerivableKeyManager) = (*StubDerivableKeyManager)(nil)
// KeyMaterialType returns the stub key material type.
func (dkm *StubDerivableKeyManager) KeyMaterialType() tinkpb.KeyData_KeyMaterialType {
return dkm.KeyMatType
}
// DeriveKey returns the stub derived key and error.
func (dkm *StubDerivableKeyManager) DeriveKey(serializedKeyFormat []byte, pseudorandomness io.Reader) (proto.Message, error) {
return dkm.DerKey, dkm.DerErr
}
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