94 lines
2.1 KiB
Go
94 lines
2.1 KiB
Go
package worker
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import (
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"crypto/aes"
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"crypto/cipher"
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"crypto/md5"
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"crypto/rand"
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"encoding/base64"
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"encoding/hex"
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"fmt"
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"io"
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mrand "math/rand"
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"time"
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)
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func GetRandomString(l int) string {
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str := "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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bytes := []byte(str)
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var result []byte
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for i := 0; i < l; i++ {
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result = append(result, bytes[mrand.Intn(len(bytes))])
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}
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return string(result)
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}
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func GetCurrentTimestamp() int64 {
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// 获取当前时间戳
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return time.Now().Unix()
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}
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// AESEncrypt 函数使用AES-GCM算法对明文进行加密
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func AESEncrypt(plaintext []byte, key []byte) (string, error) {
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// 创建AES加密块
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block, err := aes.NewCipher(key)
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if err != nil {
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return "", err
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}
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// 创建GCM模式的加密器
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gcm, err := cipher.NewGCM(block)
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if err != nil {
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return "", err
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}
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// 生成随机的nonce
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nonce := make([]byte, gcm.NonceSize())
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if _, err = io.ReadFull(rand.Reader, nonce); err != nil {
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return "", err
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}
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// 执行加密操作
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ciphertext := gcm.Seal(nonce, nonce, plaintext, nil)
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// 将加密结果转换为Base64编码字符串
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return base64.StdEncoding.EncodeToString(ciphertext), nil
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}
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// AESDecrypt 函数使用AES-GCM算法对密文进行解密
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func AESDecrypt(ciphertext string, key []byte) ([]byte, error) {
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// 将Base64编码的密文转换为字节切片
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data, err := base64.StdEncoding.DecodeString(ciphertext)
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if err != nil {
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return nil, err
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}
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// 创建AES加密块
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block, err := aes.NewCipher(key)
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if err != nil {
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return nil, err
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}
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// 创建GCM模式的解密器
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gcm, err := cipher.NewGCM(block)
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if err != nil {
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return nil, err
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}
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// 提取nonce和真正的密文
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nonceSize := gcm.NonceSize()
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if len(data) < nonceSize {
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return nil, fmt.Errorf("密文长度过短")
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}
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nonce, ciphertextBytes := data[:nonceSize], data[nonceSize:]
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// 执行解密操作
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return gcm.Open(nil, nonce, ciphertextBytes, nil)
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}
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func GenerateMD5(secretKey string) string {
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hasher := md5.New()
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hasher.Write([]byte(secretKey))
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return hex.EncodeToString(hasher.Sum(nil)) // 将二进制数据转换为十六进制字符串
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}
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