Golang : Load DSA public key from file example



Tags : golang DSA public-key pem-block

Continue from previous tutorial on generating DSA private and public key. For this tutorial, we will learn how to load a DSA public key file and process the information.

 package main

 import (
 "crypto/dsa"
 "encoding/gob"
 "fmt"
 "os"
 )

 func main() {
 //load public key

 pubKeyFile, err := os.Open("DSApublic.key")

 if err != nil {
 fmt.Println(err)
 os.Exit(1)
 }

 decoder := gob.NewDecoder(pubKeyFile)

 var publickey dsa.PublicKey
 err = decoder.Decode(&publickey)

 if err != nil {
 fmt.Println(err)
 os.Exit(1)
 }

 pubKeyFile.Close()
 //fmt.Printf("Public key : \n%x\n", pubKeyFile)

 fmt.Printf("Public key parameter P: %v\n", publickey.Parameters.P)
 fmt.Printf("Public key parameter Q: %v\n", publickey.Parameters.Q)
 fmt.Printf("Public key parameter G: %v\n", publickey.Parameters.G)
 fmt.Printf("Public key Y: %v\n", publickey.Y)

 }

Hope this helps. Happy coding!

  See also : Golang : Generate DSA private, public key and PEM files example



Tags : golang DSA public-key pem-block

By Adam Ng

IF you gain some knowledge or the information here solved your programming problem. Please consider donating to the less fortunate or some charities that you like. Apart from donation, planting trees, volunteering or reducing your carbon footprint will be great too.


Advertisement