/
crypt.go
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/
crypt.go
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// Copyright 2023 Cisco Systems, Inc. and its affiliates
//
// 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.
//
// SPDX-License-Identifier: Apache-2.0
package passwd
import "golang.org/x/crypto/bcrypt"
type PasswordEncoder interface {
Encode(rawPassword string) string
Matches(raw, encoded string) bool
}
type noopPasswordEncoder string
func NewNoopPasswordEncoder() PasswordEncoder {
return noopPasswordEncoder("clear text")
}
func (noopPasswordEncoder) Encode(rawPassword string) string {
return rawPassword
}
func (noopPasswordEncoder) Matches(raw, encoded string) bool {
return raw == encoded
}
// bcryptPasswordEncoder implements PasswordEncoder
type bcryptPasswordEncoder struct {
cost int
}
func NewBcryptPasswordEncoder() PasswordEncoder {
return &bcryptPasswordEncoder{
cost: 10,
}
}
func (enc *bcryptPasswordEncoder) Encode(raw string) string {
encoded, e := bcrypt.GenerateFromPassword([]byte(raw), enc.cost)
if e != nil {
return ""
}
return string(encoded)
}
func (enc *bcryptPasswordEncoder) Matches(raw, encoded string) bool {
e := bcrypt.CompareHashAndPassword([]byte(encoded), []byte(raw))
return e == nil
}