内容简介：产生公钥私钥并存入文件中。
rsa公钥加密
产生公钥私钥并存入文件中。
/* GenRSAKeys
*/
package main
import (
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/gob"
"encoding/pem"
"fmt"
"os"
)
func main() {
reader := rand.Reader
bitSize := 512
key, err := rsa.GenerateKey(reader, bitSize)
checkError(err)
fmt.Println("Private key primes", key.Primes[0].String(), key.Primes[1].String())
fmt.Println("Private key exponent", key.D.String())
publicKey := key.PublicKey
fmt.Println("Public key modulus", publicKey.N.String())
fmt.Println("Public key exponent", publicKey.E)
saveGobKey("private.key", key)
saveGobKey("public.key", publicKey)
savePEMKey("private.pem", key)
}
func saveGobKey(fileName string, key interface{}) {
outFile, err := os.Create(fileName)
checkError(err)
encoder := gob.NewEncoder(outFile)
err = encoder.Encode(key)
checkError(err)
outFile.Close()
}
func savePEMKey(fileName string, key *rsa.PrivateKey) {
outFile, err := os.Create(fileName)
checkError(err)
var privateKey = &pem.Block{Type: "RSA PRIVATE KEY",
Bytes: x509.MarshalPKCS1PrivateKey(key)}
pem.Encode(outFile, privateKey)
outFile.Close()
}
func checkError(err error) {
if err != nil {
fmt.Println("Fatal error ", err.Error())
os.Exit(1)
}
}
反向读取
/* LoadRSAKeys
*/
package main
import (
"crypto/rsa"
"encoding/gob"
"fmt"
"os"
)
func main() {
var key rsa.PrivateKey
loadKey("private.key", &key)
fmt.Println("Private key primes", key.Primes[0].String(), key.Primes[1].String())
fmt.Println("Private key exponent", key.D.String())
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)
}
}
以上所述就是小编给大家介绍的《go-network[13]-rsa》，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对 码农网 的支持！
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