我要评论解析的结构和代码:
x509certificatesubstring
#region 文件描述
#endregion
#region 类修改记录 : 每次修改一组描述
#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:
/// <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;
}
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