PHP，C# 跟JAVARSA签名及验签

程序员文章站 2022-05-16 17:37:40

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PHP，C# 和JAVARSA签名及验签

这个功能网上搜了好多资料。贡献一下，转载须注明并对卓二妹的无私奉献表示感谢。

1）签名算法使用SHA1withRSA。

2）签名后的数据位base64编码的密文字符串。

3）三个环境进行签名的私钥的格式不同，需要openssl工具进行转换。

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JAVA签名：

1）从包含公私钥的pfx证书中取得.key私钥：

F:\openssl-0.9.8k_WIN32\bin>openssl pkcs12 -in f:\certs\zhuo.pfx -out f:\certs\zhuo.pemEnter Import Password:（输入导出时的密码）MAC verified OKEnter PEM pass phrase:（长度至少为4位的pem证书密码）Verifying - Enter PEM pass phrase:（确认一次pem证书密码） F:\openssl-0.9.8k_WIN32\bin>openssl pkcs8 -topk8 -inform PEM -outform DER -in f:\certs\zhuo.pem -out f:\certs\zhuo_der.key -nocryptEnter pass phrase for f:\certs\zhuo.pem:（输入pem证书密码）

该步骤生成的.key文件即为JAVA签名所需私钥文件。

2）生成公钥：直接从IE中导出X.509格式二进制编码的cer为后缀的公钥证书即可。

3）签名验签：

//签名：/**	 * 	 * 函数功能说明： 签名数据	 * created by zhuoyueping 2013-8-17	 * modified by zhuoyueping 2013-8-17 	 * 修改内容说明： 	 * @param @param content:签名原文	 * @param @param keyfile：私钥文件.key路径	 * @param @return	 * @param @throws Exception     	 * @return String ：base64签名	 * @throws	 */	public String sign(String content, String keyfile) throws Exception {		File file = new File(keyfile); //keyfile key文件的地址		FileInputStream in;		in = new FileInputStream(file);		ByteArrayOutputStream bout = new ByteArrayOutputStream();		byte[] tmpbuf = new byte[1024];		int count = 0;		while ((count = in.read(tmpbuf)) != -1) {			bout.write(tmpbuf, 0, count);			tmpbuf = new byte[1024];		}		in.close();		KeyFactory keyFactory = KeyFactory.getInstance("RSA");		EncodedKeySpec privateKeySpec = new PKCS8EncodedKeySpec(bout				.toByteArray());		RSAPrivateKey privateKey = (RSAPrivateKey) keyFactory				.generatePrivate(privateKeySpec);		Signature dsa = Signature.getInstance("SHA1withRSA"); //采用SHA1withRSA加密		dsa.initSign(privateKey);		dsa.update(content.getBytes("UTF-8")); //voucher需要加密的String必须变成byte类型的		byte[] sig = dsa.sign();		String rtnValue = new String(Base64.encode(sig));		return rtnValue;	}	/**	 * 	 * 验证签名	 * 
	 *	 * @param data 原文字节	 * @param sign 数据签名[BASE64]	 * @param certificatePath 证书存储路径	 * @return	 * @throws Exception	 */public static boolean verifySign(byte[] data, String sign,			String certificatePath) throws Exception {		// 获得证书		X509Certificate x509Certificate = (X509Certificate) getCertificate(certificatePath);		return verifySign(data,sign,x509Certificate);	}private static boolean verifySign(byte[] data, String sign, X509Certificate x509Certificate)throws Exception {		PublicKey publicKey = x509Certificate.getPublicKey();		Signature signature = Signature.getInstance(x509Certificate				.getSigAlgName());		signature.initVerify(publicKey);		signature.update(data);		return signature.verify(Base64.decode(sign.getBytes()));	}

C#签名：

1）从包含公私钥的pfx证书中取得.key私钥：

F:\openssl-0.9.8k_WIN32\bin> openssl rsa -in d:\\certs\\zhuo.pfx -nocerts -nodes -out d:\\certs\\zhuo.key该步骤生成的.key文件即为C#签名所需私钥文件。

2）公钥生成：于java方式相同，都是二进制格式的x509证书3）签名及验签：

using System;using System.Text;using System.Security.Cryptography;using System.Web;using System.IO;using System.Security.Cryptography.X509Certificates;  namespace Safe{    public class SafeUtil    {        ///         /// 验证签名        /// 
        /// 原文：UTF8编码        /// 签名：base64编码的字节        /// 公钥路径        ///  验签结果        public bool Verify(String OriginalString, String SignatureString,String publicKeyPath)        {               //将base64签名数据转码为字节                 byte[] signedBase64 = Convert.FromBase64String(SignatureString);                byte[] orgin = Encoding.UTF8.GetBytes(OriginalString);                 X509Certificate2 x509_Cer1 = new X509Certificate2(publicKeyPath);                RSACryptoServiceProvider oRSA = new RSACryptoServiceProvider();                oRSA.FromXmlString(x509_Cer1.PublicKey.Key.ToXmlString(false));                bool bVerify = oRSA.VerifyData(orgin, "SHA1", signedBase64);                return bVerify;        }        ///         /// 验证签名        /// 
        /// 原文：UTF8编码        /// 证书路径：D:/certs/mycert.key        ///  验签        public string Sign(string data, string privateKeyPath)        {            RSACryptoServiceProvider rsaCsp = LoadCertificateFile(privateKeyPath);            byte[] dataBytes = Encoding.UTF8.GetBytes(data);            byte[] signatureBytes = rsaCsp.SignData(dataBytes, "SHA1");            return Convert.ToBase64String(signatureBytes);        }        private  byte[] GetPem(string type, byte[] data)        {            string pem = Encoding.UTF8.GetString(data);            string header = String.Format("-----BEGIN {0}-----", type);            string footer = String.Format("-----END {0}-----", type);            int start = pem.IndexOf(header) + header.Length;            int end = pem.IndexOf(footer, start);             string base64 = pem.Substring(start, (end - start));               return Convert.FromBase64String(base64);        }        private  RSACryptoServiceProvider LoadCertificateFile(string filename)        {            using (System.IO.FileStream fs = System.IO.File.OpenRead(filename))            {                byte[] data = new byte[fs.Length];                byte[] res = null;                fs.Read(data, 0, data.Length);                if (data[0] != 0x30)                {                    res = GetPem("RSA PRIVATE KEY", data);                }                try                {                    RSACryptoServiceProvider rsa = DecodeRSAPrivateKey(res);                    return rsa;                }                catch (Exception ex)                {                }                return null;            }        }        private  RSACryptoServiceProvider DecodeRSAPrivateKey(byte[] privkey)        {            byte[] MODULUS, E, D, P, Q, DP, DQ, IQ;                         // --------- Set up stream to decode the asn.1 encoded RSA private key ------              MemoryStream mem = new MemoryStream(privkey);            BinaryReader binr = new BinaryReader(mem);  //wrap Memory Stream with BinaryReader for easy reading              byte bt = 0;            ushort twobytes = 0;            int elems = 0;            try            {                twobytes = binr.ReadUInt16();                if (twobytes == 0x8130) //data read as little endian order (actual data order for Sequence is 30 81)                      binr.ReadByte();    //advance 1 byte                  else if (twobytes == 0x8230)                    binr.ReadInt16();    //advance 2 bytes                  else                    return null;                twobytes = binr.ReadUInt16();                if (twobytes != 0x0102) //version number                      return null;                bt = binr.ReadByte();                if (bt != 0x00)                    return null;                //------ all private key components are Integer sequences ----                  elems = GetIntegerSize(binr);                MODULUS = binr.ReadBytes(elems);                elems = GetIntegerSize(binr);                E = binr.ReadBytes(elems);                elems = GetIntegerSize(binr);                D = binr.ReadBytes(elems);                elems = GetIntegerSize(binr);                P = binr.ReadBytes(elems);                elems = GetIntegerSize(binr);                Q = binr.ReadBytes(elems);                elems = GetIntegerSize(binr);                DP = binr.ReadBytes(elems);                elems = GetIntegerSize(binr);                DQ = binr.ReadBytes(elems);                elems = GetIntegerSize(binr);                IQ = binr.ReadBytes(elems);                // ------- create RSACryptoServiceProvider instance and initialize with public key -----                  CspParameters CspParameters = new CspParameters();                CspParameters.Flags = CspProviderFlags.UseMachineKeyStore;                RSACryptoServiceProvider RSA = new RSACryptoServiceProvider(1024, CspParameters);                RSAParameters RSAparams = new RSAParameters();                RSAparams.Modulus = MODULUS;                RSAparams.Exponent = E;                RSAparams.D = D;                RSAparams.P = P;                RSAparams.Q = Q;                RSAparams.DP = DP;                RSAparams.DQ = DQ;                RSAparams.InverseQ = IQ;                RSA.ImportParameters(RSAparams);                return RSA;            }            catch (Exception ex)            {                                return null;            }            finally            {                binr.Close();            }        }        private  int GetIntegerSize(BinaryReader binr)        {            byte bt = 0;            byte lowbyte = 0x00;            byte highbyte = 0x00;            int count = 0;            bt = binr.ReadByte();            if (bt != 0x02)     //expect integer                  return 0;            bt = binr.ReadByte();            if (bt == 0x81)                count = binr.ReadByte();    // data size in next byte              else                if (bt == 0x82)                {                    highbyte = binr.ReadByte(); // data size in next 2 bytes                      lowbyte = binr.ReadByte();                    byte[] modint = { lowbyte, highbyte, 0x00, 0x00 };                    count = BitConverter.ToInt32(modint, 0);                }                else                {                    count = bt;     // we already have the data size                  }            while (binr.ReadByte() == 0x00)            {   //remove high order zeros in data                  count -= 1;            }            binr.BaseStream.Seek(-1, SeekOrigin.Current);       //last ReadByte wasn't a removed zero, so back up a byte              return count;        }      }}

PHP签名：

1）从包含公私钥的pfx证书中取得.key私钥：于C#的证书一致

2）公钥生成：

F:\openssl-0.9.8k_WIN32\bin>openssl pkcs12 -in f:\certs\zhuo.pfx -out f:\certs\zhuo.pem

3）签名及验签：

/*签名数据：data：utf-8编码的订单原文，privatekeyFile：私钥路径passphrase：私钥密码返回：base64转码的签名数据*/function sign($data, $privatekeyFile,$passphrase){   $signature = '';	$privatekey = openssl_pkey_get_private(file_get_contents($privatekeyFile), $passphrase);  $res=openssl_get_privatekey($privatekey);  openssl_sign($data, $signature, $res);  openssl_free_key($res);    return base64_encode($signature);}/*验证签名：data：原文signature：签名publicKeyPath：公钥路径返回：签名结果，true为验签成功，false为验签失败*/function verity($data, $signature, $publicKeyPath){	$pubKey = file_get_contents('D:/certs/test.pem');	$res = openssl_get_publickey($pubKey);	$result = (bool)openssl_verify($data, base64_decode($signature), $res);	openssl_free_key($res);	return $result;}

?* PHP需要注意版本和一些包的导入，如果有报错再google了~~