Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / ManagedLibraries / Security / System / Security / Cryptography / Pkcs / Pkcs9Attribute.cs / 1305376 / Pkcs9Attribute.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== // // Pkcs9Attribute.cs // namespace System.Security.Cryptography.Pkcs { using System.Collections; using System.Diagnostics; using System.Globalization; using System.Runtime.InteropServices; using System.Security.Cryptography; using System.Security.Cryptography.X509Certificates; using System.Text; [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)] public class Pkcs9AttributeObject : AsnEncodedData { // // Constructors. // internal Pkcs9AttributeObject (string oid) { base.Oid = new Oid(oid); } public Pkcs9AttributeObject () : base () {} public Pkcs9AttributeObject (string oid, byte[] encodedData) : this(new AsnEncodedData(oid, encodedData)) {} public Pkcs9AttributeObject (Oid oid, byte[] encodedData) : this(new AsnEncodedData(oid, encodedData)) {} public Pkcs9AttributeObject (AsnEncodedData asnEncodedData) : base (asnEncodedData) { if (asnEncodedData.Oid == null) throw new ArgumentNullException("asnEncodedData.Oid"); string szOid = base.Oid.Value; if (szOid == null) throw new ArgumentNullException("oid.Value"); if (szOid.Length == 0) throw new ArgumentException(SecurityResources.GetResourceString("Arg_EmptyOrNullString"), "oid.Value"); } // // Public properties. // public new Oid Oid { get { return base.Oid; } } public override void CopyFrom (AsnEncodedData asnEncodedData) { if (asnEncodedData == null) throw new ArgumentNullException("asnEncodedData"); Pkcs9AttributeObject att = asnEncodedData as Pkcs9AttributeObject; if (att == null) throw new ArgumentException(SecurityResources.GetResourceString("Cryptography_Pkcs9_AttributeMismatch")); base.CopyFrom(asnEncodedData); } } [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)] public sealed class Pkcs9SigningTime : Pkcs9AttributeObject { private DateTime m_signingTime; private bool m_decoded = false; // // Constructors. // public Pkcs9SigningTime() : this(DateTime.Now) {} public Pkcs9SigningTime(DateTime signingTime) : base(CAPI.szOID_RSA_signingTime, Encode(signingTime)) { m_signingTime = signingTime; m_decoded = true; } public Pkcs9SigningTime(byte[] encodedSigningTime) : base(CAPI.szOID_RSA_signingTime, encodedSigningTime) {} // // Public properties. // public DateTime SigningTime { get { if (!m_decoded && (null != RawData)) Decode(); return m_signingTime; } } public override void CopyFrom (AsnEncodedData asnEncodedData) { base.CopyFrom(asnEncodedData); m_decoded = false; } // // Private methods. // [System.Security.SecuritySafeCritical] private void Decode() { uint cbDecoded = 0; SafeLocalAllocHandle pbDecoded = null; if (!CAPI.DecodeObject(new IntPtr(CAPI.PKCS_UTC_TIME), RawData, out pbDecoded, out cbDecoded)) { throw new CryptographicException(Marshal.GetLastWin32Error()); } long signingTime = Marshal.ReadInt64(pbDecoded.DangerousGetHandle()); pbDecoded.Dispose(); m_signingTime = DateTime.FromFileTimeUtc(signingTime); m_decoded = true; } [System.Security.SecuritySafeCritical] private static byte[] Encode (DateTime signingTime) { long ft = signingTime.ToFileTimeUtc(); SafeLocalAllocHandle pbSigningTime = CAPI.LocalAlloc(CAPI.LPTR, new IntPtr(Marshal.SizeOf(typeof(Int64)))); Marshal.WriteInt64(pbSigningTime.DangerousGetHandle(), ft); byte[] encodedSigningTime = new byte[0]; if (!CAPI.EncodeObject(CAPI.szOID_RSA_signingTime, pbSigningTime.DangerousGetHandle(), out encodedSigningTime)) throw new CryptographicException(Marshal.GetLastWin32Error()); pbSigningTime.Dispose(); return encodedSigningTime; } } [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)] public sealed class Pkcs9DocumentName : Pkcs9AttributeObject { private string m_documentName = null; private bool m_decoded = false; // // Constructors. // public Pkcs9DocumentName () : base (CAPI.szOID_CAPICOM_documentName) {} public Pkcs9DocumentName (string documentName) : base(CAPI.szOID_CAPICOM_documentName, Encode(documentName)) { m_documentName = documentName; m_decoded = true; } public Pkcs9DocumentName (byte[] encodedDocumentName) : base(CAPI.szOID_CAPICOM_documentName, encodedDocumentName) {} // // Public methods. // public string DocumentName { get { if (!m_decoded && (null != RawData)) Decode(); return m_documentName; } } public override void CopyFrom (AsnEncodedData asnEncodedData) { base.CopyFrom(asnEncodedData); m_decoded = false; } // // Private methods. // private void Decode() { m_documentName = PkcsUtils.DecodeOctetString(RawData); m_decoded = true; } private static byte[] Encode (string documentName) { if (String.IsNullOrEmpty(documentName)) throw new ArgumentNullException("documentName"); return PkcsUtils.EncodeOctetString(documentName); } } [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)] public sealed class Pkcs9DocumentDescription : Pkcs9AttributeObject { private string m_documentDescription = null; private bool m_decoded = false; // // Constructors. // public Pkcs9DocumentDescription () : base (CAPI.szOID_CAPICOM_documentDescription) {} public Pkcs9DocumentDescription(string documentDescription) : base(CAPI.szOID_CAPICOM_documentDescription, Encode(documentDescription)) { m_documentDescription = documentDescription; m_decoded = true; } public Pkcs9DocumentDescription(byte[] encodedDocumentDescription) : base(CAPI.szOID_CAPICOM_documentDescription, encodedDocumentDescription) {} // // Public methods. // public string DocumentDescription { get { if (!m_decoded && (null != RawData)) Decode(); return m_documentDescription; } } public override void CopyFrom (AsnEncodedData asnEncodedData) { base.CopyFrom(asnEncodedData); m_decoded = false; } // // Private methods. // private void Decode () { m_documentDescription = PkcsUtils.DecodeOctetString(RawData); m_decoded = true; } private static byte[] Encode (string documentDescription) { if (String.IsNullOrEmpty(documentDescription)) throw new ArgumentNullException("documentDescription"); return PkcsUtils.EncodeOctetString(documentDescription); } } [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)] public sealed class Pkcs9ContentType : Pkcs9AttributeObject { private Oid m_contentType = null; private bool m_decoded = false; // // Constructors. // internal Pkcs9ContentType (byte[] encodedContentType) : base(CAPI.szOID_RSA_contentType, encodedContentType) {} public Pkcs9ContentType () : base (CAPI.szOID_RSA_contentType) {} // // Public properties. // public Oid ContentType { get { if (!m_decoded && (null != RawData)) Decode(); return m_contentType; } } public override void CopyFrom (AsnEncodedData asnEncodedData) { base.CopyFrom(asnEncodedData); m_decoded = false; } // // Private methods. // private void Decode () { if ((RawData.Length < 2) || ((uint) RawData[1] != (uint) (RawData.Length - 2))) throw new CryptographicException(CAPI.CRYPT_E_BAD_ENCODE); if (RawData[0] != CAPI.ASN_TAG_OBJID) throw new CryptographicException(CAPI.CRYPT_E_ASN1_BADTAG); m_contentType = new Oid(PkcsUtils.DecodeObjectIdentifier(RawData, 2)); m_decoded = true; } } [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)] public sealed class Pkcs9MessageDigest : Pkcs9AttributeObject { private byte[] m_messageDigest = null; private bool m_decoded = false; // // Constructors. // internal Pkcs9MessageDigest (byte[] encodedMessageDigest) : base(CAPI.szOID_RSA_messageDigest, encodedMessageDigest) {} public Pkcs9MessageDigest () : base (CAPI.szOID_RSA_messageDigest) {} // // Public properties. // public byte[] MessageDigest { get { if (!m_decoded && (null != RawData)) Decode(); return m_messageDigest; } } public override void CopyFrom (AsnEncodedData asnEncodedData) { base.CopyFrom(asnEncodedData); m_decoded = false; } // // Private methods. // private void Decode () { m_messageDigest = PkcsUtils.DecodeOctetBytes(RawData); m_decoded = true; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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