Ejemplo n.º 1
0
        internal byte[] SignProject(ExcelVbaProject proj)
        {
            if (!Certificate.HasPrivateKey)
            {
                //throw (new InvalidOperationException("The certificate doesn't have a private key"));
                Certificate = null;
                return(null);
            }
            var hash = GetContentHash(proj);

            BinaryWriter bw = new BinaryWriter(new MemoryStream());

            bw.Write((byte)0x30);                                                                //Constructed Type
            bw.Write((byte)0x32);                                                                //Total length
            bw.Write((byte)0x30);                                                                //Constructed Type
            bw.Write((byte)0x0E);                                                                //Length SpcIndirectDataContent
            bw.Write((byte)0x06);                                                                //Oid Tag Indentifier
            bw.Write((byte)0x0A);                                                                //Lenght OId
            bw.Write(new byte[] { 0x2B, 0x06, 0x01, 0x04, 0x01, 0x82, 0x37, 0x02, 0x01, 0x1D }); //Encoded Oid 1.3.6.1.4.1.311.2.1.29
            bw.Write((byte)0x04);                                                                //Octet String Tag Identifier
            bw.Write((byte)0x00);                                                                //Zero length

            bw.Write((byte)0x30);                                                                //Constructed Type (DigestInfo)
            bw.Write((byte)0x20);                                                                //Length DigestInfo
            bw.Write((byte)0x30);                                                                //Constructed Type (Algorithm)
            bw.Write((byte)0x0C);                                                                //length AlgorithmIdentifier
            bw.Write((byte)0x06);                                                                //Oid Tag Indentifier
            bw.Write((byte)0x08);                                                                //Lenght OId
            bw.Write(new byte[] { 0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x02, 0x05 });             //Encoded Oid for 1.2.840.113549.2.5 (AlgorithmIdentifier MD5)
            bw.Write((byte)0x05);                                                                //Null type identifier
            bw.Write((byte)0x00);                                                                //Null length
            bw.Write((byte)0x04);                                                                //Octet String Identifier
            bw.Write((byte)hash.Length);                                                         //Hash length
            bw.Write(hash);                                                                      //Content hash

            ContentInfo contentInfo = new ContentInfo(((MemoryStream)bw.BaseStream).ToArray());

            contentInfo.ContentType.Value = "1.3.6.1.4.1.311.2.1.4";
            Verifier = new SignedCms(contentInfo);
            var signer = new CmsSigner(Certificate);

            Verifier.ComputeSignature(signer, false);
            return(Verifier.Encode());
        }
Ejemplo n.º 2
0
 internal ExcelVbaModuleCollection(ExcelVbaProject project)
 {
     _project = project;
 }
Ejemplo n.º 3
0
 internal ExcelVbaProtection(ExcelVbaProject project)
 {
     _project        = project;
     VisibilityState = true;
 }