Crypt

Crypt implementation in pure Go. It provides a unified interface to varous hashing algorithms for key derivation.

Example

func main() {
    password := "password"
    settings := "$argon2id$v=19$m=65536,t=2,p=4$c2FsdHNhbHQ" // salt = "saltsalt"

    encoded, err := crypt.Crypt(password, settings)
    if err != nil {
        log.Fatal(err)
    }

    fmt.Println(encoded)
    // Output: $argon2id$v=19$m=65536,t=2,p=4$c2FsdHNhbHQ$mxUf7CB5gEwtDSiHfZCvxj17E8XeTFh2fpti1ioD3SA
}

Algorithm

Currently, the following algorithms are supported:

Code	Name	Example
1	MD5	$1$deadbeef$Q7g0UO4hRC0mgQUQ/qkjZ0
5	SHA256	$5$saltstring$5B8vYYiY.CVt1RlTTf8KbXBH3hsxY/GNooZaBBGWEc5
6	SHA512	$6$saltstring$svn8UoSVapNtMuq1ukKS4tPQd8iKwSMHWjl/O817G3uBnIFNjnQJuesI68u4OTLiBFdcbYEdFCoEOfaS35inz1
2a	bcrypt	$2a$05$/OK.fbVrR/bpIqNJ5ianF.Sa7shbm4.OzKpvFnX1pQLmQW96oUlCq
argon2i	Argon2i	$argon2i$v=19$m=65536,t=2$c29tZXNhbHQ$IMit9qkFULCMA/ViizL57cnTLOa5DiVM9eMwpAvPwr4
argon2id	Argon2id	$argon2id$v=19$m=65536,t=2,p=4$c29tZXNhbHQ$GpZ3sK/oH9p7VIiV56G/64Zo/8GaUw434IimaPqxwCo

It's recommended that you used argon2id for crypting passwords.

Links

This implementation is inspired by crypt.

License

The code is licensed under Apache 2.0