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https://github.com/caddyserver/caddy.git
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49dac61b07
* feat: add bcrypt cost parameter to hash-password * revert: typos * refactor: take the cost out of interface * fix: default bcrypt cost to 14 * fix: follow bcrypt library for min and max cost * doc: mention defaultBcryptCost in cost parameter description * chore: gci format * fix: more specific bcrypt cost algorithm flag * feat: bcrypt cost provisioning * Revert "feat: bcrypt cost provisioning" This reverts commit e09d4bd036e7657588ed7785afd2c5388b29fb2a. * chore: gci format * chore: gci format * chore: gci format * chore: golangcilint fmted --------- Co-authored-by: Mohammed Al Sahaf <msaa1990@gmail.com>
81 lines
2.2 KiB
Go
81 lines
2.2 KiB
Go
// Copyright 2015 Matthew Holt and The Caddy Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package caddyauth
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import (
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"errors"
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"golang.org/x/crypto/bcrypt"
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"github.com/caddyserver/caddy/v2"
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)
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func init() {
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caddy.RegisterModule(BcryptHash{})
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}
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// defaultBcryptCost cost 14 strikes a solid balance between security, usability, and hardware performance
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const defaultBcryptCost = 14
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// BcryptHash implements the bcrypt hash.
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type BcryptHash struct {
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// cost is the bcrypt hashing difficulty factor (work factor).
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// Higher values increase computation time and security.
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cost int
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}
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// CaddyModule returns the Caddy module information.
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func (BcryptHash) CaddyModule() caddy.ModuleInfo {
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return caddy.ModuleInfo{
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ID: "http.authentication.hashes.bcrypt",
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New: func() caddy.Module { return new(BcryptHash) },
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}
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}
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// Compare compares passwords.
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func (BcryptHash) Compare(hashed, plaintext []byte) (bool, error) {
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err := bcrypt.CompareHashAndPassword(hashed, plaintext)
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if errors.Is(err, bcrypt.ErrMismatchedHashAndPassword) {
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return false, nil
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}
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if err != nil {
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return false, err
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}
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return true, nil
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}
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// Hash hashes plaintext using a random salt.
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func (b BcryptHash) Hash(plaintext []byte) ([]byte, error) {
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cost := b.cost
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if cost < bcrypt.MinCost || cost > bcrypt.MaxCost {
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cost = defaultBcryptCost
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}
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return bcrypt.GenerateFromPassword(plaintext, cost)
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}
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// FakeHash returns a fake hash.
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func (BcryptHash) FakeHash() []byte {
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// hashed with the following command:
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// caddy hash-password --plaintext "antitiming" --algorithm "bcrypt"
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return []byte("$2a$14$X3ulqf/iGxnf1k6oMZ.RZeJUoqI9PX2PM4rS5lkIKJXduLGXGPrt6")
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}
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// Interface guards
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var (
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_ Comparer = (*BcryptHash)(nil)
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_ Hasher = (*BcryptHash)(nil)
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)
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