golangHow to validate hashed password

Use bcrypt package (to install run go get golang.org/x/crypto/bcrypt) for hashin passwords:

package main

import (
  "fmt"
  "golang.org/x/crypto/bcrypt"
)

func main() {
  pwd := "qwerty123"
  hash, _ := bcrypt.GenerateFromPassword([]byte(pwd), 10)
  
  if ( bcrypt.CompareHashAndPassword(hash, []byte("qwerty123")) == nil ) {
    fmt.Println("password is correct")
  }
}ctrl + cgithub

`package main` default package declaration	`qwerty123` sample password string to hash
`bcrypt.GenerateFromPassword` returns hash from given password	`CompareHashAndPassword` compares given hash (generated early) and password value (e.g., posted from client), returns error if they don't match

Usage example

package main

import (
  "fmt"
  "golang.org/x/crypto/bcrypt"
)

func main() {
  pwd := "qwerty123"
  hash, _ := bcrypt.GenerateFromPassword([]byte(pwd), 10)

  if ( bcrypt.CompareHashAndPassword(hash, []byte("qwerty123")) == nil ) {
    fmt.Println("password is correct")
  }
}

output

password is correct

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golangHow to validate hashed password

Usage example

output

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