PHP实现国密SM4算法,银行系统加密算法,JAVA和PHP可相互转换(附完整源码)
- 开源代码
- 2025-09-15 18:57:01

最终实现效果:PHP生成加密串,JAVA代码中完成匹配 JAVA SM4库实现效果 /** * 签名 * * @param content 请求报文体 * @param secret 密钥 * @return */ public static String sign(String content, String secret) { String charSet = "UTF-8"; String contentDigest = generateSM3HASH( content); String keyDigest = generateSM3HASH(secret); byte[] keyDigestBytes = DatatypeConverter.parseBase64Binary(keyDigest); byte[] keyBytes = new byte[16]; System.arraycopy(keyDigestBytes, 0, keyBytes, 0, 16); return encrypt( keyBytes, contentDigest, charSet); } /** * 验签 * * @param content 请求报文体 * @param secret 密钥 * @param signature 签名 * @return */ public static boolean validateSign(String content, String secret, String signature) { String charSet = "UTF-8"; String contentDigest = generateSM3HASH( content); String keyDigest = generateSM3HASH(secret); byte[] keyDigestBytes = DatatypeConverter.parseBase64Binary(keyDigest); byte[] keyBytes = new byte[16]; System.arraycopy(keyDigestBytes, 0, keyBytes, 0, 16); String decryptStr = decrypt( keyBytes,signature, charSet); return contentDigest.equals(decryptStr); } public static void main(String[] args) throws Exception { String cachedBody = "{\"version\":\"1.0\"}"; System.out.println(cachedBody); String appid = "wfmlMerchantService"; String clientId = "06b84487c21746cab4fa109f6d274a68"; String clientSecret = "579f265d19474ab8bc21b4859c1e1569"; Long nowSecond= Instant.now().toEpochMilli(); String timeStamp = String.valueOf(nowSecond).substring(0, 10); System.out.println(timeStamp); //拼接原签名 String originSignature = appid + clientId + timeStamp; System.out.println("原报文体:"+originSignature); System.out.println("Secret:"+clientSecret); String signature = PCCCSM4SignatureUtils.sign(originSignature, clientSecret); System.out.println("SIGNATURE:" + signature); System.out.println("验签:" + PCCCSM4SignatureUtils.validateSign(originSignature, clientSecret, signature)); } PHP SM4库实现效果 /** * * @desc:php Sm4加密解密类 * @author */ class NewSm4 { protected $SM4_CK; protected $SM4_Sbox; protected $SM4_FK; public function __construct() { $this->SM4_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 ]; $this->SM4_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 ]; $this->SM4_FK = [0xA3B1BAC6, 0x56AA3350, 0x677D9197, 0xB27022DC]; } /** * 系统参数 */ private $key = [];//16个 HEXHEX格式的数组 16字节 128bits 为了操作方便,直接存成十进制 private $skey = [];//记录每轮加密的秘钥 记录成十进制 private $block_size = 32; /**设置加密秘钥 * * @param $key 32个十六进制的字符 * * @return \SM4 * @throws \Exception */ public function setKey($key) { $this->key = $this->preProcess($key); $this->setSkey(); return $this; } /** * 计算每轮加密需要的秘钥 */ private function setSkey() { $skey = []; for ($i = 0; $i < 4; $i++) { $skey[] = $this->SM4_FK[$i] ^ ($this->key[4 * $i] << 24 | $this->key[4 * $i + 1] << 16 | $this->key[4 * $i + 2] << 8 | $this->key[4 * $i + 3]); } for ($k = 0; $k < 32; $k++) { $tmp = $skey[$k + 1] ^ $skey[$k + 2] ^ $skey[$k + 3] ^ $this->SM4_CK[$k]; //非线性化操作 $buf = ($this->SM4_Sbox[($tmp >> 24) & 0xff]) << 24 | ($this->SM4_Sbox[($tmp >> 16) & 0xff]) << 16 | ($this->SM4_Sbox[($tmp >> 8) & 0xff]) << 8 | ($this->SM4_Sbox[$tmp & 0xff]); //线性化操作 $skey[] = $skey[$k] ^ ($buf ^ $this->sm4Rotl32($buf, 13) ^ $this->sm4Rotl32($buf, 23)); $this->skey[] = $skey[$k + 4]; } } /**32比特的buffer中循环左移n位 * * @param $buf int 可以传递进10进制 也可以是0b开头的二进制 * @param $n int 向左偏移n位 * * @return int * reference http://blog.csdn.net/w845695652/article/details/6522285 */ private function sm4Rotl32($buf, $n) { return (($buf << $n) & 0xffffffff) | ($buf >> (32 - $n)); } /** * 对字符串加密 * * @param $plainText * * @return string * @throws Exception */ public function encryptData($plainText) { $bytes = bin2hex($plainText); $need_pad_length = $this->block_size - strlen($bytes) % $this->block_size; $pad_bytes = str_pad( $bytes, strlen($bytes) + $need_pad_length, sprintf("%02x", $need_pad_length / 2), STR_PAD_RIGHT ); $chunks = str_split($pad_bytes, $this->block_size); return strtolower(implode('', array_map(function ($chunk) { return $this->encrypt($chunk); }, $chunks))); } /**SM4加密单个片段(128bit) * * @param $text string 32个十六进制字符串 * * @return string * @throws Exception */ public function encrypt($text) { $x = $re = []; $t = $this->preProcess($text); for ($i = 0; $i < 4; $i++) { $x[] = $t[$i * 4] << 24 | $t[$i * 4 + 1] << 16 | $t[$i * 4 + 2] << 8 | $t[$i * 4 + 3]; } for ($k = 0; $k < 32; $k++) { $tmp = $x[$k + 1] ^ $x[$k + 2] ^ $x[$k + 3] ^ $this->skey[$k]; $buf = $this->SM4_Sbox[($tmp >> 24) & 0xff] << 24 | $this->SM4_Sbox[($tmp >> 16) & 0xff] << 16 | $this->SM4_Sbox[($tmp >> 8) & 0xff] << 8 | $this->SM4_Sbox[$tmp & 0xff]; $x[$k + 4] = $x[$k] ^ $buf ^ $this->sm4Rotl32($buf, 2) ^ $this->sm4Rotl32($buf, 10) ^ $this->sm4Rotl32($buf, 18) ^ $this->sm4Rotl32($buf, 24); } for ($i = 0; $i < 4; $i++) { $re[] = ($x[35 - $i] >> 24) & 0xff; $re[] = ($x[35 - $i] >> 16) & 0xff; $re[] = ($x[35 - $i] >> 8) & 0xff; $re[] = $x[35 - $i] & 0xff; } return $this->wrapResult($re); } /**预处理16字节长度的16进制字符串 返回10进制的数组 数组大小为16 * * @param $text * * @return array * @throws Exception */ private function preProcess($text) { preg_match('/[0-9a-f]{32}/', strtolower($text), $re); if (empty($re)) { throw new Exception('error input format!'); } $key = $re[0]; for ($i = 0; $i < 16; $i++) { $result[] = hexdec($key[2 * $i] . $key[2 * $i + 1]); } return $result; } /**将十进制结果包装成16进制字符串输出 * * @param $result * * @return string */ private function wrapResult($result) { $hex_str = ''; foreach ($result as $v) { $tmp = dechex($v); $len = strlen($tmp); if ($len == 1)//不足两位十六进制的数 在前面补一个0,保证输出也是32个16进制字符 { $hex_str .= '0'; } $hex_str .= $tmp; } return strtoupper($hex_str); } /**SM4解密单个片段(128bits) * * @param $text string 32个16进制字符串 * * @return string * @throws Exception */ public function decrypt($text) { $x = $re = []; $t = $this->preProcess($text); for ($i = 0; $i < 4; $i++) { $x[] = $t[4 * $i] << 24 | $t[4 * $i + 1] << 16 | $t[4 * $i + 2] << 8 | $t[4 * $i + 3]; } for ($k = 0; $k < 32; $k++) { $tmp = $x[$k + 1] ^ $x[$k + 2] ^ $x[$k + 3] ^ $this->skey[31 - $k]; $buf = ($this->SM4_Sbox[($tmp >> 24) & 0xff]) << 24 | ($this->SM4_Sbox[($tmp >> 16) & 0xff]) << 16 | ($this->SM4_Sbox[($tmp >> 8) & 0xff]) << 8 | ($this->SM4_Sbox[$tmp & 0xff]); $x[$k + 4] = $x[$k] ^ $buf ^ $this->sm4Rotl32($buf, 2) ^ $this->sm4Rotl32($buf, 10) ^ $this->sm4Rotl32($buf, 18) ^ $this->sm4Rotl32($buf, 24); } for ($i = 0; $i < 4; $i++) { $re[] = ($x[35 - $i] >> 24) & 0xff; $re[] = ($x[35 - $i] >> 16) & 0xff; $re[] = ($x[35 - $i] >> 8) & 0xff; $re[] = $x[35 - $i] & 0xff; } return $this->wrapResult($re); } public function decryptData($cipherText) { $chunks = str_split($cipherText, $this->block_size); $decrypt_text_data = implode('', array_map(function ($chunk) { return $this->decrypt($chunk); }, $chunks)); $pad_length = hexdec(substr($decrypt_text_data, -2)); return strtolower(hex2bin(preg_replace( sprintf("/%s$/", str_repeat(sprintf("%02x", $pad_length), $pad_length)), '', $decrypt_text_data ))); } } <?php header("Content-Type: text/html;charset=utf-8"); require_once 'NewSm4.php'; // 引入国密4类 NewSm4.php public static function main() { $sm4 = new NewSm4; $original_plain_text_data = 'SM4测试'; $new_key = '68756875687568756875687568756875'; $encrypted_text_data = $sm4->setKey($new_key)->encryptData(($original_plain_text_data)); // 加密字符串 echo '加密后的数据: '. $encrypted_text_data; $decrypted_text_data = $sm4->setKey($new_key)->decryptData(($encrypted_text_data)); echo '解密后的数据: '. ($decrypted_text_data); }
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