mcrypt

go-mcrypt

Go bindings for mcrypt library.

Should be compatible with most algo/modes supported by libmcrypt.

Requirements

• libmcrypt (http://mcrypt.sourceforge.net/)

Usage

package main

import (
	"fmt"
	mcrypt "github.com/mfpierre/go-mcrypt"
)

func main() {
	key := []byte("here is a random key of 32 bytes")
	plaintext := []byte("here is what you want to encrypt")
	iv := make([]byte, 16)

	// using CAST-256 in ECB mode
	encrypted, _ := mcrypt.Encrypt(key, iv, plaintext, "cast-256", "ecb")
	decrypted, _ := mcrypt.Decrypt(key, iv, encrypted, "cast-256", "ecb")
	fmt.Println(encrypted)
	fmt.Println(decrypted)
}

Below a reminder of IV & Key size that you can use depending on algo/mode settings

Credits

Thanks to https://github.com/tblyler/go-mcrypt for initial implementation with rijndael