Vestmore_GO/utils/auth/valid_code.go

package auth

import (
	"crypto/md5"
	"fmt"
	"math/rand"
	"strconv"
	"time"
)

var myRand = rand.New(rand.NewSource(time.Now().UnixNano()))

func GenerateVerificationCode() string {
	var code string

	for i := 0; i < 3; i++ {
		// 生成两个 10-99 之间的随机数
		a := myRand.Intn(90-10+1) + 10
		b := myRand.Intn(90-10+1) + 10
		c := myRand.Intn(90-10+1) + 10
		// 将随机数拼接到验证码字符串
		code += fmt.Sprintf("%d%d%d", a, b, c)
	}

	return code
}

func GenerateMD5() string {

	// 将时间戳转换为字节slice
	timestampBytes := []byte(strconv.FormatInt(time.Now().UnixNano(), 10))

	// 计算MD5哈希
	hashBytes := md5.Sum(timestampBytes)

	// 将哈希值转换为十六进制字符串
	hashHex := fmt.Sprintf("%x", hashBytes)

	return hashHex
}