update at 2023/08/14

tools/ca/cmca.go

@@ -0,0 +1,64 @@
+package main
+
+import (
+	"crypto/rand"
+	"crypto/rsa"
+	"crypto/x509"
+	"encoding/pem"
+	"fmt"
+	"os"
+)
+
+func main() {
+	// 生成RSA密钥对
+	privateKey, err := rsa.GenerateKey(rand.Reader, 2048)
+	if err != nil {
+		fmt.Println("Failed to generate RSA private key:", err)
+		return
+	}
+
+	// 将私钥保存到文件
+	privateKeyFile, err := os.Create("private_key.pem")
+	if err != nil {
+		fmt.Println("Failed to create private key file:", err)
+		return
+	}
+	defer privateKeyFile.Close()
+
+	privateKeyBlock := &pem.Block{
+		Type:  "RSA PRIVATE KEY",
+		Bytes: x509.MarshalPKCS1PrivateKey(privateKey),
+	}
+
+	err = pem.Encode(privateKeyFile, privateKeyBlock)
+	if err != nil {
+		fmt.Println("Failed to write private key to file:", err)
+		return
+	}
+
+	fmt.Println("Private key generated and saved to private_key.pem")
+
+	// 获取公钥
+	publicKey := &privateKey.PublicKey
+
+	// 将公钥保存到文件
+	publicKeyFile, err := os.Create("public_key.pem")
+	if err != nil {
+		fmt.Println("Failed to create public key file:", err)
+		return
+	}
+	defer publicKeyFile.Close()
+
+	publicKeyBlock := &pem.Block{
+		Type:  "RSA PUBLIC KEY",
+		Bytes: x509.MarshalPKCS1PublicKey(publicKey),
+	}
+
+	err = pem.Encode(publicKeyFile, publicKeyBlock)
+	if err != nil {
+		fmt.Println("Failed to write public key to file:", err)
+		return
+	}
+
+	fmt.Println("Public key generated and saved to public_key.pem")
+}