Home  >  Article  >  Backend Development  >  java-继续求助第二波,那位大神能把这个Java md5的方法写个php版的,得加密结果一致的,谢谢了!

java-继续求助第二波,那位大神能把这个Java md5的方法写个php版的,得加密结果一致的,谢谢了!

WBOY
WBOYOriginal
2016-06-02 11:33:55827browse

javaphp加密md5

继续求助第二波,那位大神能这个Java md5的方法写个php版的,得加密结果一致的,谢谢了,第一波有位达人写了一个了,但是加密结果不一样,大家可以参考下!
java方法描述的思路如下
1.将秘钥、源串分别转换byte数组
2.声明2个64位数组 将key的byte数组分别做异或运算填充进去 并分别补充 54、92 补满64长度
3.获得md5摘要算法的MessageDigest 对象
4.使用其中一个数组及源串的数组更新MessageDigest 摘要 完成哈希计算
5.重置摘要
6.使用另一个数组更新摘要 使用4中结果 从0到16开始更新摘要 完成哈希计算
7.转换字符串
方法如下
public String cryptMd5(String source, String key) {
byte[] k_ipad = new byte[64];
byte[] k_opad = new byte[64];
byte[] keyb;
byte[] value;
try { byte[] keyb = key.getBytes("UTF-8");
value = source.getBytes("UTF-8");
}
catch (UnsupportedEncodingException e)
{
byte[] value;
keyb = key.getBytes();
value = source.getBytes();
}
Arrays.fill(k_ipad, keyb.length, 64, 54);
Arrays.fill(k_opad, keyb.length, 64, 92);
for (int i = 0; i {
k_ipad[i] = (byte)(keyb[i] ^ 0x36);
k_opad[i] = (byte)(keyb[i] ^ 0x5C);
}
MessageDigest md = null;
try
{
md = MessageDigest.getInstance("MD5");
}
catch (NoSuchAlgorithmException e)
{
return null;
}
md.update(k_ipad);
md.update(value);
byte[] dg = md.digest();
md.reset();
md.update(k_opad);
md.update(dg, 0, 16);
dg = md.digest();
return toHex(dg); }
public static String toHex(byte[] input)
{
if (input == null) {
return null;
}
StringBuffer output = new StringBuffer(input.length * 2);
for (int i = 0; i {
int current = input[i] & 0xFF;
if (current output.append("0");
output.append(Integer.toString(current, 16));
}
return output.toString();
}

下面这个是上次提问达人写的,加密结果和Java的还是不一致
function cryptMd5($source, $key) {
if(! mb_check_encoding($source, 'utf-8')) $source = mb_convert_encoding($source, "utf-8", "auto");
if(! mb_check_encoding($key, 'utf-8')) $key = mb_convert_encoding($key, "utf-8", "auto");
$k_ipad = str_pad($key, 64, chr(54));

$k_opad = str_pad($key, 64, chr(92));
for($i=0; $i $k_ipad{$i} = $key{$i} ^ chr(0x36);
$k_opad{$i} = $key{$i} ^ chr(0x5c);
}
$dg = md5($source . substr($k_ipad, strlen($source)), true);
$dg = md5(substr($dg, 0, 16) . substr($k_opad, 16), true);
return bin2hex($dg);
}

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn