PHP用openssl_sign实现SHA, SHA2加密与验证

此次与Java服务端联调,对方采用SHA256WithRSA加密, 开始觉得是对应php的openssl_sign()函数的默认签名算法,后面发现不是,遂记录避免之后踩坑.

class RSA
{
	$public_key  = 'aaaaaaaa';
	$private_key = 'bbbbbb';

/**
*  格式公钥与私钥
*  $key string 公钥或私钥
*  $type  string public|private 
*/
public function formatKey($key,$type = 'public')
{
	$key= chunk_split($key,64,"\n");
	if ('public' == $type){
		$key="-----BEGIN RSA PRIVATE KEY-----\n".$key."-----END RSA PRIVATE KEY-----\n";
	} else {
		$key="-----BEGIN RSA PRIVATE KEY-----\n".$key."-----END RSA PRIVATE KEY-----\n";
	}
	return $key;
}

/**
* 加密
* $encode_str string 待加密的字符串
* $key string 公钥或私钥,通常用私钥
* $type string OPENSSL_ALGO_SHA1|OPENSSL_ALGO_SHA256  对应sha1与sha2
*/
public function encode($encode_str,$key,$type = OPENSSL_ALGO_SHA1)
{
    $result = false;
    if (openssl_sign($data, $result, $key,$type)){
        $result = base64_encode(''.$result);
    }
    return $result;
}

/**
* 验证
* $verfiy_str string 待验证的字符串
* $key string 公钥或私钥,通常用公钥
* $type string OPENSSL_ALGO_SHA1|OPENSSL_ALGO_SHA256  对应sha1与sha2
*/
public function verfiy($verfiy_str,$sign,$key,$type = OPENSSL_ALGO_SHA1)
{
	return openssl_verify($verfiy_str,base64_decode($sign),$key,$type);
}

}