本文介绍了如何从c＃中的crl文件中获取数据？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我需要从crl文件中获取数据：有效期为02.11.2012，Next更新于02.01.2013。如何从crl文件中获取此信息？
这是一些类WinCrypt32
Hi,
I need to get data from crl file: Valid from 02.11.2012, Next update 02.01.2013. How to get this information from crl file?
Here is some class WinCrypt32
public static class WinCrypt32
{
#region APIs
[DllImport("CRYPT32.DLL", EntryPoint = "CryptQueryObject", CharSet = CharSet.Auto, SetLastError = true)]
public static extern Boolean CryptQueryObject(
Int32 dwObjectType,
IntPtr pvObject,
Int32 dwExpectedContentTypeFlags,
Int32 dwExpectedFormatTypeFlags,
Int32 dwFlags,
IntPtr pdwMsgAndCertEncodingType,
IntPtr pdwContentType,
IntPtr pdwFormatType,
ref IntPtr phCertStore,
IntPtr phMsg,
ref IntPtr ppvContext
);
[DllImport("CRYPT32.DLL", EntryPoint = "CertFreeCRLContext", SetLastError = true)]
public static extern Boolean CertFreeCRLContext(
IntPtr pCrlContext
);
[DllImport("CRYPT32.DLL", EntryPoint = "CertNameToStr", CharSet = CharSet.Auto, SetLastError = true)]
public static extern Int32 CertNameToStr(
Int32 dwCertEncodingType,
ref CRYPTOAPI_BLOB pName,
Int32 dwStrType,
StringBuilder psz,
Int32 csz
);
[DllImport("CRYPT32.DLL", EntryPoint = "CertFindExtension", CharSet = CharSet.Auto, SetLastError = true)]
public static extern IntPtr CertFindExtension(
[MarshalAs(UnmanagedType.LPStr)]String pszObjId,
Int32 cExtensions,
IntPtr rgExtensions
);
[DllImport("CRYPT32.DLL", EntryPoint = "CryptFormatObject", CharSet = CharSet.Auto, SetLastError = true)]
public static extern Boolean CryptFormatObject(
Int32 dwCertEncodingType,
Int32 dwFormatType,
Int32 dwFormatStrType,
IntPtr pFormatStruct,
[MarshalAs(UnmanagedType.LPStr)]String lpszStructType,
IntPtr pbEncoded,
Int32 cbEncoded,
StringBuilder pbFormat,
ref Int32 pcbFormat
);
#endregion APIs
#region Structs
[StructLayout(LayoutKind.Sequential)]
public struct CRYPT_OBJID_BLOB
{
public uint cbData;
[MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 0)]
public byte[] pbData;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
public struct CERT_PUBLIC_KEY_INFO
{
public CRYPT_ALGORITHM_IDENTIFIER Algorithm;
public CRYPTOAPI_BLOB PublicKey;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct CERT_EXTENSION
{
[MarshalAs(UnmanagedType.LPStr)]
public string pszObjId;
public bool fCritical;
public CRYPTOAPI_BLOB Value;
}
[StructLayout(LayoutKind.Sequential)]
public struct CERT_CONTEXT
{
public uint dwCertEncodingType;
public IntPtr pbCertEncoded;
public uint cbCertEncoded;
public IntPtr pCertInfo;
public IntPtr hCertStore;
}
public struct CERT_INFO
{
public int dwVersion;
public CRYPTOAPI_BLOB SerialNumber;
public CRYPT_ALGORITHM_IDENTIFIER SignatureAlgorithm;
public CRYPTOAPI_BLOB Issuer;
public FILETIME NotBefore;
public FILETIME NotAfter;
public CRYPTOAPI_BLOB Subject;
public CERT_PUBLIC_KEY_INFO SubjectPublicKeyInfo;
public CRYPTOAPI_BLOB IssuerUniqueId;
public CRYPTOAPI_BLOB SubjectUniqueId;
public int cExtension;
public CERT_EXTENSION rgExtension;
}
[StructLayout(LayoutKind.Sequential)]
public struct CRL_CONTEXT
{
public Int32 dwCertEncodingType;
public IntPtr pbCrlEncoded;
public Int32 cbCrlEncoded;
public IntPtr pCrlInfo;
public IntPtr hCertStore;
}
[StructLayout(LayoutKind.Sequential)]
public struct CRL_INFO
{
public Int32 dwVersion;
public CRYPT_ALGORITHM_IDENTIFIER SignatureAlgorithm;
public CRYPTOAPI_BLOB Issuer;
public FILETIME ThisUpdate;
public FILETIME NextUpdate;
public Int32 cCRLEntry;
public IntPtr rgCRLEntry;
public Int32 cExtension;
public IntPtr rgExtension;
}
[StructLayout(LayoutKind.Sequential)]
public struct CRYPT_ALGORITHM_IDENTIFIER
{
[MarshalAs(UnmanagedType.LPStr)]
public String pszObjId;
public CRYPTOAPI_BLOB Parameters;
}
[StructLayout(LayoutKind.Sequential)]
public struct CRYPTOAPI_BLOB
{
public Int32 cbData;
public IntPtr pbData;
}
[StructLayout(LayoutKind.Sequential)]
public struct FILETIME
{
public Int32 dwLowDateTime;
public Int32 dwHighDateTime;
}
[StructLayout(LayoutKind.Sequential)]
public struct CRL_ENTRY
{
public CRYPTOAPI_BLOB SerialNumber;
public FILETIME RevocationDate;
public Int32 cExtension;
public IntPtr rgExtension;
}
#endregion Structs
#region Consts
public const Int32 CERT_QUERY_OBJECT_FILE = 0x00000001;
public const Int32 CERT_QUERY_OBJECT_BLOB = 0x00000002;
public const Int32 CERT_QUERY_CONTENT_CRL = 3;
public const Int32 CERT_QUERY_CONTENT_FLAG_CRL = 1 << CERT_QUERY_CONTENT_CRL;
public const Int32 CERT_QUERY_FORMAT_BINARY = 1;
public const Int32 CERT_QUERY_FORMAT_BASE64_ENCODED = 2;
public const Int32 CERT_QUERY_FORMAT_ASN_ASCII_HEX_ENCODED = 3;
public const Int32 CERT_QUERY_FORMAT_FLAG_BINARY = 1 << CERT_QUERY_FORMAT_BINARY;
public const Int32 CERT_QUERY_FORMAT_FLAG_BASE64_ENCODED = 1 << CERT_QUERY_FORMAT_BASE64_ENCODED;
public const Int32 CERT_QUERY_FORMAT_FLAG_ASN_ASCII_HEX_ENCODED = 1 << CERT_QUERY_FORMAT_ASN_ASCII_HEX_ENCODED;
public const Int32 CERT_QUERY_FORMAT_FLAG_ALL = CERT_QUERY_FORMAT_FLAG_BINARY | CERT_QUERY_FORMAT_FLAG_BASE64_ENCODED | CERT_QUERY_FORMAT_FLAG_ASN_ASCII_HEX_ENCODED;
public const Int32 X509_ASN_ENCODING = 0x00000001;
public const Int32 PKCS_7_ASN_ENCODING = 0x00010000;
public const Int32 X509_NAME = 7;
public const Int32 CERT_SIMPLE_NAME_STR = 1;
public const Int32 CERT_OID_NAME_STR = 2;
public const Int32 CERT_X500_NAME_STR = 3;
public const String szOID_CRL_REASON_CODE = "2.5.29.21";
public enum Disposition : uint
{
CERT_STORE_ADD_NEW = 1,
CERT_STORE_ADD_USE_EXISTING = 2,
CERT_STORE_ADD_REPLACE_EXISTING = 3,
CERT_STORE_ADD_ALWAYS = 4,
CERT_STORE_ADD_REPLACE_EXISTING_INHERIT_PROPERTIES = 5,
CERT_STORE_ADD_NEWER = 6,
CERT_STORE_ADD_NEWER_INHERIT_PROPERTIES = 7,
}
[Flags]
public enum FindFlags : int
{
CRL_FIND_ISSUED_BY_AKI_FLAG = 0x1,
CRL_FIND_ISSUED_BY_SIGNATURE_FLAG = 0x2,
CRL_FIND_ISSUED_BY_DELTA_FLAG = 0x4,
CRL_FIND_ISSUED_BY_BASE_FLAG = 0x8,
}
public enum FindType : int
{
CRL_FIND_ANY = 0,
CRL_FIND_ISSUED_BY = 1,
CRL_FIND_EXISTING = 2,
CRL_FIND_ISSUED_FOR = 3
}
#endregion
}
所以它可以帮助我？
Sohow it can help me?
推荐答案
这篇关于如何从c＃中的crl文件中获取数据？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！