PHP?SM4加密的實(shí)現(xiàn)
更新時間：2025年01月17日 09:14:13 作者：紫云沫雪こ
這篇文章主要為大家詳細(xì)介紹了PHP?SM4加密的實(shí)現(xiàn),文中通過示例代碼介紹的非常詳細(xì),對大家的學(xué)習(xí)或者工作具有一定的參考學(xué)習(xí)價值,需要的朋友們下面隨著小編來一起學(xué)習(xí)學(xué)習(xí)吧
sm4基類
class Sm4
{
private $ck = [
0x00070e15, 0x1c232a31, 0x383f464d, 0x545b6269,
0x70777e85, 0x8c939aa1, 0xa8afb6bd, 0xc4cbd2d9,
0xe0e7eef5, 0xfc030a11, 0x181f262d, 0x343b4249,
0x50575e65, 0x6c737a81, 0x888f969d, 0xa4abb2b9,
0xc0c7ced5, 0xdce3eaf1, 0xf8ff060d, 0x141b2229,
0x30373e45, 0x4c535a61, 0x686f767d, 0x848b9299,
0xa0a7aeb5, 0xbcc3cad1, 0xd8dfe6ed, 0xf4fb0209,
0x10171e25, 0x2c333a41, 0x484f565d, 0x646b7279
];
private $Sbox = [
0xd6, 0x90, 0xe9, 0xfe, 0xcc, 0xe1, 0x3d, 0xb7, 0x16, 0xb6, 0x14, 0xc2, 0x28, 0xfb, 0x2c, 0x05,
0x2b, 0x67, 0x9a, 0x76, 0x2a, 0xbe, 0x04, 0xc3, 0xaa, 0x44, 0x13, 0x26, 0x49, 0x86, 0x06, 0x99,
0x9c, 0x42, 0x50, 0xf4, 0x91, 0xef, 0x98, 0x7a, 0x33, 0x54, 0x0b, 0x43, 0xed, 0xcf, 0xac, 0x62,
0xe4, 0xb3, 0x1c, 0xa9, 0xc9, 0x08, 0xe8, 0x95, 0x80, 0xdf, 0x94, 0xfa, 0x75, 0x8f, 0x3f, 0xa6,
0x47, 0x07, 0xa7, 0xfc, 0xf3, 0x73, 0x17, 0xba, 0x83, 0x59, 0x3c, 0x19, 0xe6, 0x85, 0x4f, 0xa8,
0x68, 0x6b, 0x81, 0xb2, 0x71, 0x64, 0xda, 0x8b, 0xf8, 0xeb, 0x0f, 0x4b, 0x70, 0x56, 0x9d, 0x35,
0x1e, 0x24, 0x0e, 0x5e, 0x63, 0x58, 0xd1, 0xa2, 0x25, 0x22, 0x7c, 0x3b, 0x01, 0x21, 0x78, 0x87,
0xd4, 0x00, 0x46, 0x57, 0x9f, 0xd3, 0x27, 0x52, 0x4c, 0x36, 0x02, 0xe7, 0xa0, 0xc4, 0xc8, 0x9e,
0xea, 0xbf, 0x8a, 0xd2, 0x40, 0xc7, 0x38, 0xb5, 0xa3, 0xf7, 0xf2, 0xce, 0xf9, 0x61, 0x15, 0xa1,
0xe0, 0xae, 0x5d, 0xa4, 0x9b, 0x34, 0x1a, 0x55, 0xad, 0x93, 0x32, 0x30, 0xf5, 0x8c, 0xb1, 0xe3,
0x1d, 0xf6, 0xe2, 0x2e, 0x82, 0x66, 0xca, 0x60, 0xc0, 0x29, 0x23, 0xab, 0x0d, 0x53, 0x4e, 0x6f,
0xd5, 0xdb, 0x37, 0x45, 0xde, 0xfd, 0x8e, 0x2f, 0x03, 0xff, 0x6a, 0x72, 0x6d, 0x6c, 0x5b, 0x51,
0x8d, 0x1b, 0xaf, 0x92, 0xbb, 0xdd, 0xbc, 0x7f, 0x11, 0xd9, 0x5c, 0x41, 0x1f, 0x10, 0x5a, 0xd8,
0x0a, 0xc1, 0x31, 0x88, 0xa5, 0xcd, 0x7b, 0xbd, 0x2d, 0x74, 0xd0, 0x12, 0xb8, 0xe5, 0xb4, 0xb0,
0x89, 0x69, 0x97, 0x4a, 0x0c, 0x96, 0x77, 0x7e, 0x65, 0xb9, 0xf1, 0x09, 0xc5, 0x6e, 0xc6, 0x84,
0x18, 0xf0, 0x7d, 0xec, 0x3a, 0xdc, 0x4d, 0x20, 0x79, 0xee, 0x5f, 0x3e, 0xd7, 0xcb, 0x39, 0x48
];
private $fk = [0xA3B1BAC6, 0x56AA3350, 0x677D9197, 0xB27022DC];
private $rk = [];
private $b = '';
private $len = 16;
/**
* Sm4 constructor.
* @param string $key 秘鑰長度16位
* @param string $b 不是16的倍數(shù) 需要的補(bǔ)碼
* @throws \Exception
*/
public function __construct($key, $b = ' ')
{
$this->ck16($key);
$this->crk($key);
}
private function dd(&$data)
{
$n = strlen($data) % $this->len;
$data = $data . str_repeat($this->b, $n);
}
private function ck16($str)
{
if (strlen($str) !== $this->len) {
throw new \Exception('秘鑰長度為16位');
}
}
private function add($v)
{
$arr = unpack('N*', $v);
$max = 0xffffffff;
$j = 1;
for ($i = 4; $i > 0; $i--) {
if ($arr[$i] > $max - $j) {
$j = 1;
$arr[$i] = 0;
} else {
$arr[$i] += $j;
break;
}
}
return pack('N*', ...$arr);
}
/**
* @param string $str 加密字符串
* @param string $iv 初始化字符串16位
* @return string
* @throws \Exception
*/
public function deDataCtr($str, $iv)
{
return $this->enDataCtr($str, $iv);
}
/**
* @param string $str 加密字符串
* @param string $iv 初始化字符串16位
* @return string
* @throws \Exception
*/
public function enDataCtr($str, $iv)
{
$this->ck16($iv);
$r = '';
$this->dd($str);
$l = strlen($str) / $this->len;
for ($i = 0; $i < $l; $i++) {
$s = substr($str, $i * $this->len, $this->len);
$tr = [];
$this->encode(array_values(unpack('N*', $iv)), $tr);
$s1 = pack('N*', ...$tr);
$s1 = $s1 ^ $s;
$iv = $this->add($iv);
$r .= $s1;
}
return $r;
}
/**
* @param string $str 加密字符串
* @param string $iv 初始化字符串16位
* @return string
* @throws \Exception
*/
public function enDataOfb($str, $iv)
{
$this->ck16($iv);
$r = '';
$this->dd($str);
$l = strlen($str) / $this->len;
for ($i = 0; $i < $l; $i++) {
$s = substr($str, $i * $this->len, $this->len);
$tr = [];
$this->encode(array_values(unpack('N*', $iv)), $tr);
$iv = pack('N*', ...$tr);
$s1 = $s ^ $iv;
$r .= $s1;
}
return $r;
}
/**
* @param string $str 加密字符串
* @param string $iv 初始化字符串16位
* @return string
* @throws \Exception
*/
public function deDataOfb($str, $iv)
{
return $this->enDataOfb($str, $iv);
}
/**
* @param string $str 加密字符串
* @param string $iv 初始化字符串16位
* @return string
* @throws \Exception
*/
public function deDataCfb($str, $iv)
{
$this->ck16($iv);
$r = '';
$this->dd($str);
$l = strlen($str) / $this->len;
for ($i = 0; $i < $l; $i++) {
$s = substr($str, $i * $this->len, $this->len);
$tr = [];
$this->encode(array_values(unpack('N*', $iv)), $tr);
$s1 = pack('N*', ...$tr);
$s1 = $s ^ $s1;
$iv = $s;
$r .= $s1;
}
return $r;
}
/**
* @param string $str 加密字符串
* @param string $iv 初始化字符串16位
* @return string
* @throws \Exception
*/
public function enDataCfb($str, $iv)
{
$this->ck16($iv);
$r = '';
$this->dd($str);
$l = strlen($str) / $this->len;
for ($i = 0; $i < $l; $i++) {
$s = substr($str, $i * $this->len, $this->len);
$tr = [];
$this->encode(array_values(unpack('N*', $iv)), $tr);
$s1 = pack('N*', ...$tr);
$iv = $s ^ $s1;
$r .= $iv;
}
return $r;
}
/**
* @param string $str 加密字符串
* @param string $iv 初始化字符串16位
* @return string
* @throws \Exception
*/
public function enDataCbc($str, $iv)
{
$this->ck16($iv);
$r = '';
$this->dd($str);
$l = strlen($str) / $this->len;
for ($i = 0; $i < $l; $i++) {
$s = substr($str, $i * $this->len, $this->len);
$s = $iv ^ $s;
$tr = [];
$this->encode(array_values(unpack('N*', $s)), $tr);
$iv = pack('N*', ...$tr);
$r .= $iv;
}
return $r;
}
/**
* @param string $str 加密字符串
* @param string $iv 初始化字符串16位
* @return string
* @throws \Exception
*/
public function deDataCbc($str, $iv)
{
$this->ck16($iv);
$r = '';
$this->dd($str);
$l = strlen($str) / $this->len;
for ($i = 0; $i < $l; $i++) {
$s = substr($str, $i * $this->len, $this->len);
$tr = [];
$this->decode(array_values(unpack('N*', $s)), $tr);
$s1 = pack('N*', ...$tr);
$s1 = $iv ^ $s1;
$iv = $s;
$r .= $s1;
}
return $r;
}
/**
* @param string $str 加密字符串
* @return string
*/
public function enDataEcb($str)
{
$r = [];
$this->dd($str);
$ar = unpack('N*', $str);
do {
$this->encode([current($ar), next($ar), next($ar), next($ar)], $r);
} while (next($ar));
return pack('N*', ...$r);
}
/**
* @param string $str 解密字符串
* @return string
*/
public function deDataEcb($str)
{
$r = [];
$this->dd($str);
$ar = unpack('N*', $str);
do {
$this->decode([current($ar), next($ar), next($ar), next($ar)], $r);
} while (next($ar));
return pack('N*', ...$r);
}
private function encode($ar, &$r)
{
for ($i = 0; $i < 32; $i++) {
$ar[$i + 4] = $this->f($ar[$i], $ar[$i + 1], $ar[$i + 2], $ar[$i + 3], $this->rk[$i]);
}
$r[] = $ar[35];
$r[] = $ar[34];
$r[] = $ar[33];
$r[] = $ar[32];
}
private function decode($ar, &$r)
{
for ($i = 0; $i < 32; $i++) {
$ar[$i + 4] = $this->f($ar[$i], $ar[$i + 1], $ar[$i + 2], $ar[$i + 3], $this->rk[31 - $i]);
}
$r[] = $ar[35];
$r[] = $ar[34];
$r[] = $ar[33];
$r[] = $ar[32];
}
private function crk($key)
{
$keys = array_values(unpack('N*', $key));
$keys = [
$keys[0] ^ $this->fk[0],
$keys[1] ^ $this->fk[1],
$keys[2] ^ $this->fk[2],
$keys[3] ^ $this->fk[3]
];
for ($i = 0; $i < 32; $i++) {
$this->rk[] = $keys[] = $keys[$i] ^ $this->t1($keys[$i + 1] ^ $keys[$i + 2] ^ $keys[$i + 3] ^ $this->ck[$i]);
}
}
private function lm($a, $n)
{
return ($a >> (32 - $n) | (($a << $n) & 0xffffffff));
}
private function f($x0, $x1, $x2, $x3, $r)
{
return $x0 ^ $this->t($x1 ^ $x2 ^ $x3 ^ $r);
}
private function s($n)
{
return $this->Sbox[($n & 0xff)] | $this->Sbox[(($n >> 8) & 0xff)] << 8 | $this->Sbox[(($n >> 16) & 0xff)] << 16 | $this->Sbox[(($n >> 24) & 0xff)] << 24;
}
private function t($n)
{
$b = $this->s($n);
return $b ^ $this->lm($b, 2) ^ $this->lm($b, 10) ^ $this->lm($b, 18) ^ $this->lm($b, 24);
}
private function t1($n)
{
$b = $this->s($n);
return $b ^ $this->lm($b, 13) ^ $this->lm($b, 23);
}
}
調(diào)用類
class RtSm4
{
protected $sm4;
protected $keyLen = 16;
protected $ivLen = 16;
function __construct($key)
{
$this->sm4 = new Sm4($key);
}
public function encrypt($data, $type = 'sm4', $iv = '', $formatOut = 'hex')
{
if ($type != 'sm4-ecb') {
$this->check_iv($iv);
}
$ret = '';
switch ($type) {
case 'sm4':
case 'sm4-cbc':
$data = $this->mystr_pad($data, $this->keyLen); //需要補(bǔ)齊
$ret = $this->sm4->enDataCbc($data, $iv);
break;
case 'sm4-ecb':
$data = $this->mystr_pad($data, $this->keyLen); //需要補(bǔ)齊
$ret = $this->sm4->enDataEcb($data);
break;
case 'sm4-ctr':
$ret = $this->sm4->enDataCtr($data, $iv);
break;
case 'sm4-ofb':
$ret = $this->sm4->enDataOfb($data, $iv);
break;
case 'sm4-cfb':
$ret = $this->sm4->enDataCfb($data, $iv);
break;
default:
throw new Exception('bad type');
}
if ($formatOut == 'hex') {
return bin2hex($ret);
} else if ($formatOut == 'base64') {
return base64_encode($ret);
}
return $ret;
}
public function decrypt($data, $type = 'sm4', $iv = '', $formatInput = 'hex')
{
if ($type != 'sm4-ecb') {
$this->check_iv($iv);
}
if ($formatInput == 'hex') {
$data = hex2bin($data);
} else if ($formatInput == 'base64') {
$data = base64_decode($data);
}
//else is raw
switch ($type) {
case 'sm4':
case 'sm4-cbc':
$ret = $this->sm4->deDataCbc($data, $iv);
$ret = $this->mystr_unpad($ret);
break;
case 'sm4-ecb':
$ret = $this->sm4->deDataEcb($data);
$ret = $this->mystr_unpad($ret);
break;
case 'sm4-ctr':
$ret = $this->sm4->deDataCtr($data, $iv);
break;
case 'sm4-ofb':
$ret = $this->sm4->deDataOfb($data, $iv);
break;
case 'sm4-cfb':
$ret = $this->sm4->deDataCfb($data, $iv);
break;
default:
throw new Exception('bad type');
}
return $ret;
}
//加密前補(bǔ)齊，特定后綴不適用全部的對接方
protected function mystr_pad($data, $len = 16)
{
$n = $len - strlen($data) % $len;
$tmpString = $this->strToHex($data) . "80";
$tmpString .= str_repeat("00", $n - 1);
return $this->hexToStr($tmpString);
}
// 解密后去掉補(bǔ)齊，特定后綴不適用全部的對接方
protected function mystr_unpad($data)
{
$tmp = $this->strToHex($data);
$lastIndex = strrpos($tmp, '80');
if ($lastIndex !== false) {
$tmp = substr($tmp, 0, $lastIndex);
}
return $this->hexToStr($tmp);
}
//加密前補(bǔ)齊，通用代碼，無特定需求可用這個
protected function mystr_pad_bak($data, $len = 16)
{
$n = $len - strlen($data) % $len;
return $data . str_repeat(chr($n), $n);
}
// 解密后去掉補(bǔ)齊 通用的代碼，無特定需求可用這個
protected function mystr_unpad_bak($data)
{
$n = ord(substr($data, -1));
return substr($data, 0, -$n);
}
protected function check_iv($iv)
{
if (strlen($iv) != $this->ivLen) {
throw new Exception('bad iv');
}
}
protected function strToHex($string)
{
$hex = unpack('H*', $string);
return $hex[1];
}
protected function hexToStr($hex)
{
$string = pack('H*', $hex);
return $string;
}
}
調(diào)用
$key = hex2bin('660e5d5xxxxxxx714f346e');
$iv = hex2bin('abcd0863xxxxxf67');
$sm4 = new RtSm4($key);
$string = 'xxxx';
$encodeText = $sm4->encrypt($string, 'sm4-cbc', $iv);
echo $encodeText . PHP_EOL;
echo $sm4->decrypt($encodeText, 'sm4-cbc', $iv). PHP_EOL;到此這篇關(guān)于PHP SM4加密的實(shí)現(xiàn)的文章就介紹到這了,更多相關(guān)PHP SM4加密內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！
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