rsa oaep 2048 sha256

rsa_oaep.go

package main
 
import (
        "crypto/rand"
        "crypto/rsa"
        "crypto/sha256"
        "log"
)
 
func main() {
 
        private,err:=rsa.GenerateKey(rand.Reader,2048)
        if err != nil {
                log.Println("error: %s", err)
        }
        public := private.PublicKey
 
        in := []byte("Hello World")
 
        encrypted, err := rsa.EncryptOAEP(sha256.New(), rand.Reader, &public, in, nil)
        if err != nil {
                log.Println("error: %s", err)
        }
 
        plain, err := rsa.DecryptOAEP(sha256.New(), nil, private, encrypted, nil)
        if err != nil {
                log.Println("error: %s", err)
        }
 
        log.Println(string(plain))
}