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pkg/utils/encrypt.go

@@ -75,3 +75,106 @@ func HmacSha256ToHex(key string, data string) string {
 func HmacSha256ToBase64(key string, data string) string {
 	return base64.URLEncoding.EncodeToString(HmacSha256(key, data))
 }
+
+func EncryptPhone(phone string) (string, Error) {
+	// 提取各部分
+	prefix := phone[NumberZero:NumberThree]   // 前三位
+	middle := phone[NumberThree:NumberSeven]  // 中四位
+	suffix := phone[NumberSeven:NumberEleven] // 尾四位
+	newPhone := StringEmpty
+	username, cErr := Crypto{}.AESEncryptECB(prefix)
+	if cErr != nil {
+		return StringEmpty, cErr
+	}
+	newPhone = username
+	username, cErr = Crypto{}.AESEncryptECB(middle)
+	if cErr != nil {
+		return StringEmpty, cErr
+	}
+	newPhone += username
+	username, cErr = Crypto{}.AESEncryptECB(suffix)
+	if cErr != nil {
+		return StringEmpty, cErr
+	}
+	newPhone += username
+	return newPhone, nil
+}
+
+func DecryptPhone(phone string) (string, Error) {
+	// 提取各部分
+	prefix := phone[NumberZero:24] // 前三位
+	middle := phone[24:48]         // 中四位
+	suffix := phone[48:72]         // 尾四位
+	newPhone := StringEmpty
+	username, cErr := Crypto{}.AESDecryptECB(prefix)
+	if cErr != nil {
+		return StringEmpty, cErr
+	}
+	newPhone = username
+	username, cErr = Crypto{}.AESDecryptECB(middle)
+	if cErr != nil {
+		return StringEmpty, cErr
+	}
+	newPhone += username
+	username, cErr = Crypto{}.AESDecryptECB(suffix)
+	if cErr != nil {
+		return StringEmpty, cErr
+	}
+	newPhone += username
+	return newPhone, nil
+}
+
+func getSearchPhone(mobile string) string {
+	phone := StringEmpty
+	if len(mobile) == 11 {
+		prefix := mobile[NumberZero:3] // 前三位
+		username, cErr := Crypto{}.AESEncryptECB(prefix)
+		if cErr == nil {
+			phone = username
+		}
+		prefix = mobile[NumberThree:NumberSeven] // 中四位
+		username, cErr = Crypto{}.AESEncryptECB(prefix)
+		if cErr == nil {
+			phone += username
+		}
+		prefix = mobile[NumberSeven:NumberEleven] // 尾四位
+		username, cErr = Crypto{}.AESEncryptECB(prefix)
+		if cErr == nil {
+			phone += username
+		}
+	} else if len(mobile) > NumberTwo {
+		prefix := mobile[NumberZero:NumberThree] //前三位
+		if len(mobile) == NumberFour {
+			prefix = mobile[NumberZero:NumberFour] // 前四位
+		}
+		username, cErr := Crypto{}.AESEncryptECB(prefix)
+		if cErr == nil {
+			phone = username
+		}
+		if len(mobile) > NumberFour {
+			prefix = mobile[NumberThree:] // 中四位
+			username, cErr = Crypto{}.AESEncryptECB(prefix)
+			if cErr == nil {
+				phone += username
+			}
+		}
+	}
+	return phone
+}
+
+// GetRandstring 取得随机字符串:使用字符串拼接
+func GetRandstring(length int) string {
+	if length < 1 {
+		return StringEmpty
+	}
+	char := "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+	charArr := strings.Split(char, StringEmpty)
+	charlen := len(charArr)
+	ran := rand.New(rand.NewSource(time.Now().Unix()))
+
+	var rchar string = StringEmpty
+	for i := 1; i <= length; i++ {
+		rchar = rchar + charArr[ran.Intn(charlen)]
+	}
+	return rchar
+}