Pkcs7Signer.cs source code in C# .NET

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                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / ManagedLibraries / Security / System / Security / Cryptography / Pkcs / Pkcs7Signer.cs / 1305376 / Pkcs7Signer.cs
                        
                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 

// 
// Pkcs7Signer.cs 
//
 
namespace System.Security.Cryptography.Pkcs {
    using System.Globalization;
    using System.Security.Cryptography;
    using System.Security.Cryptography.X509Certificates; 

    [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)] 
    public sealed class CmsSigner { 
        private SubjectIdentifierType            m_signerIdentifierType;
        private X509Certificate2                m_certificate; 
        private Oid                              m_digestAlgorithm;
        private CryptographicAttributeObjectCollection m_signedAttributes;
        private CryptographicAttributeObjectCollection m_unsignedAttributes;
        private X509Certificate2Collection      m_certificates; 
        private X509IncludeOption                m_includeOption;
        private bool                             m_dummyCert; 
 
        //
        // Constructors. 
        //

        public CmsSigner () : this(SubjectIdentifierType.IssuerAndSerialNumber, null) {}
 
        public CmsSigner (SubjectIdentifierType signerIdentifierType) : this (signerIdentifierType, null) {}
 
        public CmsSigner (X509Certificate2 certificate) : this(SubjectIdentifierType.IssuerAndSerialNumber, certificate) {} 

        [SecuritySafeCritical] 
        public CmsSigner (CspParameters parameters) : this(SubjectIdentifierType.SubjectKeyIdentifier,
                                                           PkcsUtils.CreateDummyCertificate(parameters)) {
            m_dummyCert = true;
            this.IncludeOption = X509IncludeOption.None; 
        }
 
        public CmsSigner (SubjectIdentifierType signerIdentifierType, X509Certificate2 certificate) { 
            switch (signerIdentifierType) {
            case SubjectIdentifierType.Unknown: 
                this.SignerIdentifierType = SubjectIdentifierType.IssuerAndSerialNumber;
                this.IncludeOption = X509IncludeOption.ExcludeRoot;
                break;
            case SubjectIdentifierType.IssuerAndSerialNumber: 
                this.SignerIdentifierType = signerIdentifierType;
                this.IncludeOption = X509IncludeOption.ExcludeRoot; 
                break; 
            case SubjectIdentifierType.SubjectKeyIdentifier:
                this.SignerIdentifierType = signerIdentifierType; 
                this.IncludeOption = X509IncludeOption.ExcludeRoot;
                break;
            case SubjectIdentifierType.NoSignature:
                this.SignerIdentifierType = signerIdentifierType; 
                this.IncludeOption        = X509IncludeOption.None;
                break; 
            default: 
                this.SignerIdentifierType = SubjectIdentifierType.IssuerAndSerialNumber;
                this.IncludeOption = X509IncludeOption.ExcludeRoot; 
                break;
            }
            this.Certificate = certificate;
            this.DigestAlgorithm = new Oid(CAPI.szOID_OIWSEC_sha1); 

            m_signedAttributes = new CryptographicAttributeObjectCollection(); 
            m_unsignedAttributes = new CryptographicAttributeObjectCollection(); 
            m_certificates = new X509Certificate2Collection();
        } 

        //
        // Public APIs.
        // 

        public SubjectIdentifierType SignerIdentifierType { 
            get { 
                return m_signerIdentifierType;
            } 
            set {
                if (value != SubjectIdentifierType.IssuerAndSerialNumber &&
                    value != SubjectIdentifierType.SubjectKeyIdentifier  &&
                    value != SubjectIdentifierType.NoSignature) 
                    throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, SecurityResources.GetResourceString("Arg_EnumIllegalVal"), "value"));
 
                if (m_dummyCert && value != SubjectIdentifierType.SubjectKeyIdentifier) 
                    throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, SecurityResources.GetResourceString("Arg_EnumIllegalVal"), "value"));
                m_signerIdentifierType = value; 
            }
        }

        public X509Certificate2 Certificate { 
            get {
                return m_certificate; 
            } 
            set {
                m_certificate = value; 
            }
        }

        public Oid DigestAlgorithm { 
            get {
                return m_digestAlgorithm; 
            } 
            set {
                m_digestAlgorithm = value; 
            }
        }

        public CryptographicAttributeObjectCollection SignedAttributes { 
            get {
                return m_signedAttributes; 
            } 
        }
 
        public CryptographicAttributeObjectCollection UnsignedAttributes {
            get {
                return m_unsignedAttributes;
            } 
        }
 
        public X509Certificate2Collection Certificates { 
            get {
                return m_certificates; 
            }
        }

        public X509IncludeOption IncludeOption { 
            get {
                return m_includeOption; 
            } 
            set {
                if (value < X509IncludeOption.None || value > X509IncludeOption.WholeChain) 
                    throw new ArgumentException(String.Format(CultureInfo.CurrentCulture, SecurityResources.GetResourceString("Arg_EnumIllegalVal"), "value"));
                m_includeOption = value;
            }
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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Pkcs7Signer.cs source code in C# .NET

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