计算猪八戒utf-8的md4亿次值（🐶）

最近有点烦恼，idea升级不了。。。。。练练md4

python 使用这个包pycryptodomex

from Cryptodome.Hash import MD4

str = '猪八戒'

for _ in range(100000000):
    str = MD4.new(str.encode(encoding='utf-8')).hexdigest()
	
print(f'utf8md4:     {str}')

有点慢1514.648 seconds

---

golang快了很多。。。。

package main

import (
    "encoding/hex"
    "fmt"
    "golang.org/x/crypto/md4"
    "io"
)

func main() {
    data := "猪八戒"
    for i := 0; i < 100000000; i++ {
        h := md4.New()
        io.WriteString(h, data)
        data = hex.EncodeToString(h.Sum(nil))
    }
    fmt.Println(data)
}

java速度也可以，用这个包bcprov-ext-jdk15on

public static void main(String[] args) throws Exception {
        Security.addProvider(new BouncyCastleProvider());
        String str = "猪八戒";
        MessageDigest md = MessageDigest.getInstance("MD4");
        for (int i = 0; i < 100000000; i++) {
            byte[] digest = md.digest(str.getBytes("UTF-8"));
            str = new String(Hex.encode(digest));
        }
        System.out.println(str);
    }

来源：oschina

链接：https://my.oschina.net/yiyeliu/blog/4404884