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zeekayandHanzo Dev
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Source files keep their SPDX-License-Identifier and Hanzo copyright line; the Gitea, Gogs and LFS Test Server copyrights they used to repeat now live once in NOTICE, alongside LICENSE. The header lint accepts any copyright line above the SPDX line, so it no longer demands an upstream one. Co-authored-by: Hanzo Dev <[email protected]>
55 lines
1.4 KiB
Go
55 lines
1.4 KiB
Go
// Copyright 2026 Hanzo AI, Inc. All rights reserved.
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// SPDX-License-Identifier: MIT
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package hash
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import (
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"golang.org/x/crypto/bcrypt"
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)
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func init() {
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MustRegister("bcrypt", NewBcryptHasher)
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}
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// BcryptHasher implements PasswordHasher
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// and uses the bcrypt password hash function.
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type BcryptHasher struct {
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cost int
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}
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// HashWithSaltBytes a provided password and salt
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func (hasher *BcryptHasher) HashWithSaltBytes(password string, salt []byte) string {
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if hasher == nil {
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return ""
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}
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hashedPassword, _ := bcrypt.GenerateFromPassword([]byte(password), hasher.cost)
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return string(hashedPassword)
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}
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func (hasher *BcryptHasher) VerifyPassword(password, hashedPassword, salt string) bool {
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return bcrypt.CompareHashAndPassword([]byte(hashedPassword), []byte(password)) == nil
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}
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// NewBcryptHasher is a factory method to create an BcryptHasher
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// The provided config should be either empty or the string representation of the "<cost>"
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// as an integer
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func NewBcryptHasher(config string) *BcryptHasher {
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// This matches the original configuration for `bcrypt` prior to storing hash parameters
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// in the database.
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// THESE VALUES MUST NOT BE CHANGED OR BACKWARDS COMPATIBILITY WILL BREAK
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hasher := &BcryptHasher{
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cost: 10, // cost=10. i.e. 2^10 rounds of key expansion.
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}
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if config == "" {
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return hasher
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}
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var err error
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hasher.cost, err = parseIntParam(config, "cost", "bcrypt", config, nil)
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if err != nil {
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return nil
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}
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return hasher
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}
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