How to Generate Random Strong Password using Golang?

GeneratePassword() is a function that generates a strongly typed random string of the specified length (length int) and returns it as a string (string). The string is generated using a combination of lowercase, uppercase letters, numbers, and special characters.

Parameters:

• length: the length of the generated password (int)

Returns:

• string: the generated password (string)

func GeneratePassword(length int) string {
	// Define the charset for generating the password
	// The charset includes lowercase letters, uppercase letters, numbers, and special characters
	const charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()+,-.:;<=>?[]_{}"

	// Create a strings.Builder to store the generated password
	var password strings.Builder

	// Reserve memory for the password
	password.Grow(length)

	// Generate the password by selecting a random character from the charset for each index in the password
	for i := 0; i < length; i++ {
		password.WriteByte(charset[rand.Intn(len(charset))])
	}

	// Return the generated password
	return password.String()
}

is using other functions to generate a random string of the specified length check it out, but update charset with your own.

Experience the magic of coding unfold as you execute this code!

package main

import (
	"fmt"
	"math/rand"
	"strings"
)

func GeneratePassword(length int) string {
	const charset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()+,-.:;<=>?[]_{}"
	var password strings.Builder
	password.Grow(length)

	for i := 0; i < length; i++ {
		password.WriteByte(charset[rand.Intn(len(charset))])
	}

	return password.String()
}

func main() {
	fmt.Println(GeneratePassword(12)) // Output always random Example; boj3A3#_GVTY

	fmt.Println("Build with love by Adam Nasrudin")
}

enjoy your code!