解析数字签名的Substring结构代码,CSharp代码库,德仔网

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【CSharp】解析数字签名的Substring结构
作者:lucienbao / 发布于2015/10/13/ 1448

	解析的结构和代码:

	X509CertificateSubstring

	#region 文件描述

	// 描述：数字签名的Substring结构类
	// 作者：鲍昊晟
	// 时间：2012-7-2

	#endregion

	#region 类修改记录 : 每次修改一组描述

	// 修改描述：
	// 修 改 人：
	// 修改时间：

	#endregion

	using System;
	using System.Security.Cryptography.X509Certificates;

	namespace DTLEntAdministration.Common
	{
	 /// <summary>
	 /// 数字签名的Substring结构
	 /// </summary>
	 public class X509CertificateSubstring
	 {
	 //CN=Shenzhen DriveTheLife Software Technology Co.Ltd, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Shenzhen DriveTheLife Software Technology Co.Ltd, L=Shenzhen, S=Guangdong, C=CN
	 #region 私有字段
	 private string _CN = string.Empty;
	 private string _OU = string.Empty;
	 private string _O = string.Empty;
	 private string _L = string.Empty;
	 private string _S = string.Empty;
	 private string _C = string.Empty;
	 #endregion
	 #region 公共只读属性
	 public string CN { get { return _CN; } }
	 public string OU { get { return _OU; } }
	 public string O { get { return _O; } }
	 public string L { get { return _L; } }
	 public string S { get { return _S; } }
	 public string C { get { return _C; } }
	 #endregion
	 public X509CertificateSubstring() { }

	 /// <summary>
	 /// 将Substring字符串解析成结构体
	 /// </summary>
	 /// <param name="substring">Substring字符串</param>
	 /// <returns>X509CertificateSubstring</returns>
	 public static X509CertificateSubstring Parse(string substring)
	 {
	 X509CertificateSubstring xcs = new X509CertificateSubstring();
	 string[] items = substring.Split(',');
	 foreach (var item in items)
	 {
	 if (item.Trim().StartsWith("CN="))
	 {
	 xcs._CN = item.Trim().Substring(3); continue;
	 }
	 if (item.Trim().StartsWith("OU="))
	 {
	 xcs._OU = item.Trim().Substring(3); continue;
	 }
	 if (item.Trim().StartsWith("O="))
	 {
	 xcs._O = item.Trim().Substring(2); continue;
	 }
	 if (item.Trim().StartsWith("L="))
	 {
	 xcs._L = item.Trim().Substring(2); continue;
	 }
	 if (item.Trim().StartsWith("S="))
	 {
	 xcs._S = item.Trim().Substring(2); continue;
	 }
	 if (item.Trim().StartsWith("C="))
	 {
	 xcs._C = item.Trim().Substring(2); continue;
	 }
	 }
	 return xcs;
	 }

	 /// <summary>
	 /// 将Substring字符串解析成结构体,并返回数字签名存在与否
	 /// </summary>
	 /// <param name="pyFile">读取数字签名的文件的物理路径</param>
	 /// <param name="xcs">X509CertificateSubstring</param>
	 /// <returns>bool</returns>
	 public static bool TryParse(string pyFile, out X509CertificateSubstring xcs)
	 {
	 bool result = true;
	 xcs = new X509CertificateSubstring();
	 string SubstringCN = string.Empty;
	 X509Certificate cert = null;
	 try
	 {
	 cert = X509Certificate2.CreateFromSignedFile(pyFile);
	 }
	 catch (System.Security.Cryptography.CryptographicException ce)
	 {
	 //没有数字签名,忽略此异常.
	 result = false;
	 }
	 catch (Exception ex)
	 {
	 result = false;
	 throw ex;
	 }
	 if (cert != null)
	 {
	 xcs = X509CertificateSubstring.Parse(cert.Subject);
	 }
	 return result;
	 }

	 }
	}

	

	

	

	调用的示例代码:

	获取数字签名的名称

	 /// <summary>
	 /// 获取数字签名的名称
	 /// </summary>
	 /// <param name="pyFile">读取数字签名的文件的物理路径</param>
	 /// <returns>数字签名,如果没有数字签名则返回空字符串</returns>
	 public static string GetX509CertificateSubstringCN(string pyFile)
	 {
	 string SubstringCN = string.Empty;
	 X509CertificateSubstring xcs;
	 if (X509CertificateSubstring.TryParse(pyFile, out xcs))
	 {
	 SubstringCN = xcs.CN;
	 }
	 return SubstringCN;
	 }
试试其它关键字
　数字签名　　 Substring　
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