/
md5.go
executable file
·48 lines (40 loc) · 1012 Bytes
/
md5.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
package xcrypt
import (
"crypto/md5"
"crypto/sha1"
"encoding/hex"
"strconv"
)
//MD5 对一个字符串进行MD5加密,不可解密
func MD5(s string) string {
h := md5.New()
h.Write([]byte(s)) //使用zhifeiya名字做散列值,设定后不要变
return hex.EncodeToString(h.Sum(nil))
}
//Sha1 获取 SHA1 字符串
func Sha1(s string) string {
t := sha1.New()
t.Write([]byte(s))
return hex.EncodeToString(t.Sum(nil))
}
func HashMod(str string, mod int64) (ret int64) {
defer func() {
if ret == 0 {
ret = mod
}
}()
val, err := strconv.ParseInt(str, 10, 64)
if err == nil && val > 0 {
return val % mod
}
vi, err := strconv.ParseInt(str, 16, 64)
if err == nil && vi > 0 {
return vi % mod
}
md5_str := MD5(str)
iad1, _ := strconv.ParseInt(md5_str[0:8], 16, 64)
iad2, _ := strconv.ParseInt(md5_str[6:16], 16, 64)
iad3, _ := strconv.ParseInt(md5_str[16:24], 16, 64)
iad4, _ := strconv.ParseInt(md5_str[24:], 16, 64)
return (((iad1%mod+iad2)%mod+iad3)%mod + iad4) % mod
}