genpasswd.go

This is a simple password generator written in golang. This tool is based and inspired from https://github.com/sethvargo/go-password , thanks Vargo.

Some improvements

A simple command interface for users
Clipboard support for Linux(Xorg/Wayland), macOS, Windows etc.

Build and Usage

Just run make build to build genpasswd(require go version > 1.11). The genpasswd has many params, including:

  -allow-repeat
    	Allows characters to repeat (default true)
  -copies int
    	Generate copies of password (default 1)
  -digits int
    	Number of digits to include in the password (default 4)
  -length intv
    	Specify the password length (default 16)
  -no-clipboard
    	Do not copy to clipboard
  -no-upper
    	Excludes uppercase letters from the results (default true)
  -symbols int
    	Number of digits to include in the password (default 4)
  -version
    	Print version and exit

Running in Docker

Run make docker_image to build Docker image for gopasswd, if u wanna running this tool in contrainer.

Then, type docker run --rm genpasswd:0.0.1 to run genpasswd after build is completed.

That's it, have fun!

README.md from original `go-password` library.

This library implements generation of random passwords with provided requirements as described by AgileBits 1Password in pure Golang. The algorithm is commonly used when generating website passwords.

The library uses crypto/rand for added randomness.

Sample example passwords this library may generate:

0N[k9PhDqmmfaO`p_XHjVv`HTq|zsH4XiH8umjg9JAGJ#\Qm6lZ,28XF4{X?3sHj
7@90|0H7!4p\,c<!32:)0.9N
UlYuRtgqyWEivlXnLeBpZvIQ
Q795Im1VR5h363s48oZGaLDa
wpvbxlsc

Installation

$ go get -u github.com/sethvargo/go-password/password

Usage

package main

import (
  "log"

  "github.com/sethvargo/go-password/password"
)

func main() {
  // Generate a password that is 64 characters long with 10 digits, 10 symbols,
  // allowing upper and lower case letters, disallowing repeat characters.
  res, err := password.Generate(64, 10, 10, false, false)
  if err != nil {
    log.Fatal(err)
  }
  log.Printf(res)
}

See the GoDoc for more information.

License

This code is licensed under the MIT license.

mingcheng/genpasswd