Network Programming with Go by Jan Newmarch

Author:Jan Newmarch
Language: eng
Format: epub
Publisher: Apress, Berkeley, CA

var publicKey rsa.PublicKey

loadKey("public.key", &publicKey)

fmt.Println("Public key modulus", publicKey.N.String())

fmt.Println("Public key exponent", publicKey.E)

}

func loadKey(fileName string, key interface{}) {

inFile, err := os.Open(fileName)

checkError(err)

decoder := gob.NewDecoder(inFile)

err = decoder.Decode(key)

checkError(err)

inFile.Close()

}

func checkError(err error) {

if err != nil {

fmt.Println("Fatal error ", err.Error())

os.Exit(1)

}

}

X.509 Certificates

A Public Key Infrastructure (PKI) is a framework for a collection of public keys, along with additional information such as owner name and location, and links between them giving some sort of approval mechanism.

The principal PKI in use today is based on X.509 certificates. For example, web browsers use them to verify the identity of web sites.

An example program to generate a self-signed X.509 certificate for my web site and store it in a .cer file is GenX509Cert.go:

/* GenX509Cert

*/

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