encpriv

package main

import (
    "crypto/rand"
    "crypto/rsa"
    "crypto/sha256"
    "fmt"
)

func main() {
    // Generate RSA Keys
    privateKey, err := rsa.GenerateKey(rand.Reader, 2048)
    if err != nil {
        fmt.Println(err)
        return
    }
    publicKey := &privateKey.PublicKey

    // Message to encrypt
    message := []byte("your message here")

    // Encrypt message with private key (this is usually for signing)
    // In standard practice, you should encrypt with public key
    encryptedMessage, err := rsa.EncryptOAEP(sha256.New(), rand.Reader, &rsa.PrivateKey{D: privateKey.D, PublicKey: *publicKey}, message, nil)
    if err != nil {
        fmt.Println(err)
        return
    }
    fmt.Println("Encrypted Message: ", encryptedMessage)

    // Decrypt message with public key
    decryptedMessage, err := rsa.DecryptOAEP(sha256.New(), rand.Reader, privateKey, encryptedMessage, nil)
    if err != nil {
        fmt.Println(err)
        return
    }
    fmt.Println("Decrypted Message: ", string(decryptedMessage))
}