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php generating signatures and verifying signatures
<?php /** * 根据原文生成签名内容 * * @param string $data 原文内容 * * @return string * @author confu */ function sign($data) { $filePath = 'test.p12'; if(!file_exists($filePath)) { return false; } $pkcs12 = file_get_contents($filePath); if (openssl_pkcs12_read($pkcs12, $certs, '读取证书所需要的密码')) { $privateKey = $certs['pkey']; //根据实际情况键值可能不同 $publicKey = $certs['cert']; //根据实际情况键值可能不同 $binary_signature = ""; if (openssl_sign($data, $binarySignature, $privateKey, OPENSSL_ALGO_SHA1)) { return $binarySignature; } else { return ''; } } else { return ''; } } /** * 验证签名自己生成的是否正确 * * @param string $data 签名的原文 * @param string $signature 签名 * * @return bool * @author confu */ function verifySign($data, $signature) { $filePath = 'test.p12'; if(!file_exists($filePath)) { return false; } $pkcs12 = file_get_contents($filePath); if (openssl_pkcs12_read($pkcs12, $certs, '读取证书所需要的密码')) { $publicKey = $certs['cert']; $ok = openssl_verify($data, $signature, $publicKey); if ($ok == 1) { return true; } } return false; } /** * 验证返回的签名是否正确 * * @param string $data 要验证的签名原文 * @param string $signature 签名内容 * * @return bool * @author confu */ function verifyRespondSign($data, $signature) { $filePath = 'allinpay-pds.pem'; if(!file_exists($filePath)) { return false; } $fp = fopen($filePath, "r"); $cert = fread($fp, 8192); fclose($fp); $pubkeyid = openssl_get_publickey($cert); if(!is_resource($pubkeyid)) { return false; } $ok = openssl_verify($data, $signature, $pubkeyid); if ($ok == 1) { openssl_free_key($pubkeyid); return true; } return false; } ?>
openssl_sign The default signature_alg parameter is OPENSSL_ALGO_SHA1
If you use DSA encryption, you need to use the OPENSSL_ALGO_DSS1 parameter
signature_alg Other parameters
OPENSSL_ALGO_DSS1 (integer)
OPENSSL_ALGO_SHA1 (integer)
OPENSSL_ALGO_SHA224 (integer)
OPENSSL_ALGO_SHA256 (integer)
OPENSSL_ALGO_SHA384 (integer)
OPENSSL_ALGO_SHA512 (integer)
OPENSSL_ALGO_RMD160 (integer)
OPENSSL_ALGO_MD5 (integer)
OPENSSL_ALGO_MD4 (integer)
OPENSSL_ALGO_MD2 (integer)
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