temp

aes.go

@@ -8,6 +8,7 @@ import (
 	"encoding/base64"
 	"encoding/hex"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 )
@@ -19,6 +20,19 @@ func PKCS7Padding(ciphertext []byte, blockSize int) []byte {
 	return append(ciphertext, padtext...)
 }
 
+// 去除PKCS7填充
+func PKCS7UnPadding(origData []byte) ([]byte, error) {
+	length := len(origData)
+	if length == 0 {
+		return nil, errors.New("input data error")
+	}
+	unpadding := int(origData[length-1])
+	if unpadding > length {
+		return nil, errors.New("unpadding size is invalid")
+	}
+	return origData[:(length - unpadding)], nil
+}
+
 // AES CBC模式加密，Base64传入传出
 func AesEncrypt(plainText, key []byte) (string, error) {
 	block, err := aes.NewCipher(key)
@@ -41,9 +55,39 @@ func AesEncrypt(plainText, key []byte) (string, error) {
 	return base64.StdEncoding.EncodeToString(cipherText), nil
 }
 
-type Data struct {
-	Name  string `json:"name"`
-	Email string `json:"email"`
+// AES CBC模式解密，Base64传入传出
+func AesDecrypt(cipherTextBase64 string, key []byte) ([]byte, error) {
+	cipherText, err := base64.StdEncoding.DecodeString(cipherTextBase64)
+	if err != nil {
+		return nil, err
+	}
+
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return nil, err
+	}
+
+	blockSize := block.BlockSize()
+	if len(cipherText) < blockSize {
+		return nil, errors.New("ciphertext too short")
+	}
+
+	iv := cipherText[:blockSize]
+	cipherText = cipherText[blockSize:]
+
+	if len(cipherText)%blockSize != 0 {
+		return nil, errors.New("ciphertext is not a multiple of the block size")
+	}
+
+	mode := cipher.NewCBCDecrypter(block, iv)
+	mode.CryptBlocks(cipherText, cipherText)
+
+	plainText, err := PKCS7UnPadding(cipherText)
+	if err != nil {
+		return nil, err
+	}
+
+	return plainText, nil
 }
 
 func main() {
@@ -52,25 +96,34 @@ func main() {
 
 	var data interface{}
 
-	data = map[string]interface{}{
-		"id_card": "45212220000827423X",
-		"name":    "张荣宏",
-	}
-
-	// 将结构体转为 JSON 字符串
-	jsonData, err := json.Marshal(data)
+	decrypt, err := AesDecrypt("AEQHGRyEolE4o8GoZaWuEFGpGRLEvEMCNM54KzZ/HdnvfOtyFDfn1PVpD6Cb37rQpJm3CqZYLDJWmEcU0f7IeD0MG8Zh1PIvSEwJVEyI2OkZjooZNjuchARpqeG40sS8hFjQt/xVP3qBVsF6+tdnI8GNc8EdLpZ8ja4c/xVprhjr9yRmRHZOVvECFiJkqwrve8jq2vuC5CowNjc4THK8zRmJI+qWDazUL4vntdWFmqG4YmHDZm/UFecevDNMhWRfdeWE2aI9lTXZ/X/gtHEcVyzbx8cltdn+4KuR3t6VPf3edWDSDM0PTxSNbWwPgaTC1sMbBJiFJLW+cUgxJhfQqE1FF5yY+t6V7l8vfW6cUV4xRCFZ/clFvidnYev2CocvMKzf6gkbO/El2a4VA5ustRwL1G3hxMf9fd+5yGT5dEGci+cbysGHTKzNeHf75az1RgW2WEYUBUc7czNiZgkaIA==", key)
 	if err != nil {
-		fmt.Println("JSON 序列化错误:", err)
 		return
 	}
-
-	// 对 JSON 数据进行加密
-	encryptedData, err := AesEncrypt(jsonData, key)
+	err = json.Unmarshal(decrypt, &data)
 	if err != nil {
-		fmt.Println("加密错误:", err)
 		return
 	}
-
-	// 输出加密后的结果
-	fmt.Println("加密后的数据:", encryptedData)
+	fmt.Println(data)
+	//data = map[string]interface{}{
+	//	"id_card": "45212220000827423X",
+	//	"name":    "张荣宏",
+	//}
+	//
+	//// 将结构体转为 JSON 字符串
+	//jsonData, err := json.Marshal(data)
+	//if err != nil {
+	//	fmt.Println("JSON 序列化错误:", err)
+	//	return
+	//}
+	//
+	//// 对 JSON 数据进行加密
+	//encryptedData, err := AesEncrypt(jsonData, key)
+	//if err != nil {
+	//	fmt.Println("加密错误:", err)
+	//	return
+	//}
+	//
+	//// 输出加密后的结果
+	//fmt.Println("加密后的数据:", encryptedData)
 }