鍦℅olang涓紝鍙互浣跨敤crypto/rsa鍖呮潵瀹炵幇RSA鍔犲瘑銆備笅闈㈡槸涓€涓畝鍗曠殑绀轰緥浠ｇ爜锛?/p>

package main

import (
	"crypto/rand"
	"crypto/rsa"
	"crypto/x509"
	"encoding/pem"
	"fmt"
)

func main() {
	// 鐢熸垚RSA瀵嗛挜瀵?/span>
	privateKey, err := rsa.GenerateKey(rand.Reader, 2048)
	if err != nil {
		fmt.Println("Failed to generate RSA key pair:", err)
		return
	}

	// 灏嗙閽ヤ繚瀛樹负PEM鏍煎紡
	privateKeyPem := &pem.Block{
		Type:  "RSA PRIVATE KEY",
		Bytes: x509.MarshalPKCS1PrivateKey(privateKey),
	}
	privateKeyPemBytes := pem.EncodeToMemory(privateKeyPem)
	fmt.Println("Private key (PEM format):")
	fmt.Println(string(privateKeyPemBytes))

	// 灏嗗叕閽ヤ繚瀛樹负PEM鏍煎紡
	publicKey := &privateKey.PublicKey
	publicKeyDer, err := x509.MarshalPKIXPublicKey(publicKey)
	if err != nil {
		fmt.Println("Failed to convert public key to DER format:", err)
		return
	}
	publicKeyPem := &pem.Block{
		Type:  "PUBLIC KEY",
		Bytes: publicKeyDer,
	}
	publicKeyPemBytes := pem.EncodeToMemory(publicKeyPem)
	fmt.Println("Public key (PEM format):")
	fmt.Println(string(publicKeyPemBytes))

	// 鍔犲瘑鏁版嵁
	plainText := []byte("Hello, RSA encryption!")
	cipherText, err := rsa.EncryptPKCS1v15(rand.Reader, publicKey, plainText)
	if err != nil {
		fmt.Println("Failed to encrypt data:", err)
		return
	}
	fmt.Println("Cipher text:")
	fmt.Println(cipherText)

	// 瑙ｅ瘑鏁版嵁
	decryptedText, err := rsa.DecryptPKCS1v15(rand.Reader, privateKey, cipherText)
	if err != nil {
		fmt.Println("Failed to decrypt data:", err)
		return
	}
	fmt.Println("Decrypted text:")
	fmt.Println(string(decryptedText))
}

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