Пример #1
0
        public DSIGInfo( string filename )
        {
            fontfile = new OTFile();
            tDSIG = null;

            Warn_TTCv1 = false;
            Warn_DSIG_in_memFonts = false;
            Warn_MalformedSIG = false;
            usNumSigs = 0;

            if ( !fontfile.open(filename) )
            {
                        throw new IOException("Cannot open file " + filename );
            }

            TTCHeader ttc = null;
            if ( fontfile.IsCollection() )
            {
                ttc = fontfile.GetTTCHeader();
                if ( fontfile.GetTableManager().GetUnaliasedTableName(ttc.DsigTag) == "DSIG" )
                {
                MBOBuffer buf = fontfile.ReadPaddedBuffer(ttc.DsigOffset, ttc.DsigLength);
                tDSIG = (Table_DSIG) fontfile.GetTableManager().CreateTableObject(ttc.DsigTag, buf);
                }
                for (uint i = 0; i < fontfile.GetNumFonts() ; i++)
                {
                    OTFont fn = fontfile.GetFont(i);
                    Table_DSIG memDSIG = (Table_DSIG) fn.GetTable("DSIG");
                    if (memDSIG != null)
                    {
                        Warn_DSIG_in_memFonts = true;
                        break;
                    }
                }
            }
            else
            {
                OTFont fn = fontfile.GetFont(0);
                tDSIG = (Table_DSIG) fn.GetTable("DSIG");
            }

            HaveDSIG = ( ( tDSIG == null ) ? false : true );

            // Officially we should only warn if HaveDSIG true
            if ( fontfile.IsCollection() && ttc.version != 0x00020000 )
                Warn_TTCv1 = true;

            if ( HaveDSIG )
                FurtherWork();
        }
Пример #2
0
        static int Main( string[] args )
        {
            if (args.Length == 0) {
                Console.WriteLine("DSIGInfo [-v] [-v] [-v] fontfile");
                return 0;
            }

            OTFile f = new OTFile();
            Table_DSIG tDSIG = null;
            string filename = null;
            verbose = 0;

            for ( int i = 0; i < args.Length; i++ ) {
                if ( "-v" == args[i] )
                    verbose++;
                else
                    filename = args[i];
            }

            if ( !f.open(filename) )
            {
                    Console.WriteLine("Error: Cannot open {0} as font file", filename);
                    return 0;
            }

            TTCHeader ttc = null;
            if ( f.IsCollection() )
            {
                ttc = f.GetTTCHeader();
                if ( f.GetTableManager().GetUnaliasedTableName(ttc.DsigTag) == "DSIG" )
                {
                MBOBuffer buf = f.ReadPaddedBuffer(ttc.DsigOffset, ttc.DsigLength);
                tDSIG = (Table_DSIG) f.GetTableManager().CreateTableObject(ttc.DsigTag, buf);
                }
                for (uint i = 0; i < f.GetNumFonts() ; i++)
                {
                    OTFont fn = f.GetFont(i);
                    Table_DSIG memDSIG = (Table_DSIG) fn.GetTable("DSIG");
                    if (memDSIG != null)
                    {
                        Console.WriteLine("Warning: DSIG in member font");
                        break;
                    }
                }
            }
            else
            {
                OTFont fn = f.GetFont(0);
                tDSIG = (Table_DSIG) fn.GetTable("DSIG");
            }

            Console.WriteLine("{0} DSIG table: {1}", filename,
                              ( tDSIG == null ) ? "Absent" : "Present" );
            if (tDSIG == null)
                return 0;
            if ( f.IsCollection() && ttc.version != 0x00020000 )
                Console.WriteLine("Warning: TTC has DSIG but header version is 0x{0}, != 0x00020000", ttc.version.ToString("X8"));

            if ( tDSIG.usNumSigs != 1 )
            Console.WriteLine("NumSigs = {0}", tDSIG.usNumSigs);
            for ( uint v = 0; v < tDSIG.usNumSigs ; v++ )
            {
                Table_DSIG.SignatureBlock sgb;
                try {
                    sgb = tDSIG.GetSignatureBlock(v);
                } catch (IndexOutOfRangeException)
                {
                    Console.WriteLine("Error: Out of Range SignatureBlock {0}", v);
                    break;
                }

                SignedCms cms = new SignedCms();
                cms.Decode(sgb.bSignature);

                if ( cms.SignerInfos.Count > 1 )
                Console.WriteLine( "#SignerInfos: {0}", cms.SignerInfos.Count );
                foreach ( var si in cms.SignerInfos )
                {
                    Console.WriteLine(si.Certificate);
                    if ( Type.GetType("Mono.Runtime") == null )
                        foreach ( var ua in si.UnsignedAttributes )
                        {
                            foreach ( var asnd in ua.Values )
                            {
                                try
                                {
                                    ASN1 vv = new ASN1(asnd.RawData);
                                    ASN1 t = new ASN1(vv[3][1][1].Value);
                                    Console.WriteLine("Decoded Signing Time: {0}", ASN1Convert.ToDateTime (t) );
                                }
                                catch (Exception e)
                                {/* Nothing to do */ }
                            }
                        }
                }
                Console.WriteLine( "#Certificates: {0}", cms.Certificates.Count );
            #if HAVE_MONO_X509
                certs =  new Mono.Security.X509.X509CertificateCollection ();
                //Mono.Security.X509.X509Chain signerChain = new Mono.Security.X509.X509Chain ();
            #endif
                foreach ( var x509 in cms.Certificates )
                {
            #if HAVE_MONO_X509
                    certs.Add(new Mono.Security.X509.X509Certificate(x509.RawData));
            #endif
                if ( verbose > 0 )
                {
                    Console.WriteLine(x509);
                }
                else
                {
                    Console.WriteLine(x509.Subject);
                }
                };
            #if HAVE_MONO_X509
                Mono.Security.X509.X509Certificate x = new Mono.Security.X509.X509Certificate(cms.SignerInfos[0].Certificate.RawData);
                Mono.Security.X509.X509Certificate parent = x;
                while (x != null) { // Self-signed is fine - the font bundled CA is self-signed.
                    parent = x; // last valid
                    x = FindCertificateParent (x);
                    if (x != null && x.Equals(parent))
                        break;
                }
            #endif
                ASN1 spc = new ASN1(cms.ContentInfo.Content);

                ASN1 playload_oid = null;
                ASN1 oid = null;
                ASN1 digest = null;
                ASN1 obsolete = null;
                if ( Type.GetType("Mono.Runtime") == null )
                {
                    // DotNet is much saner!
                    playload_oid = spc[0][0];
                    obsolete = spc[0][1][0];
                    oid = spc[1][0][0];
                    digest = spc[1][1];
                }
                else
                {
                    playload_oid = spc[0];
                    obsolete = spc[1][0];
                    oid = spc[2][0][0];
                    digest = spc[2][1];
                }
                string algo = ASN1Convert.ToOid (oid);
                string algoname = (new Oid(algo)).FriendlyName;
                Console.WriteLine("Digest Algorithm: {0}", algoname);
                byte[] Value = digest.Value;
                StringBuilder hexLine_sig = new StringBuilder ();
                for (int i = 0; i < Value.Length; i++) {
                    hexLine_sig.AppendFormat ("{0} ", Value [i].ToString ("X2"));
                }
                hexLine_sig.AppendFormat (Environment.NewLine);

                switch ( algoname )
                {
                    case "md5":
                        hash = HashAlgorithm.Create ("MD5");
                        break;
                    case "sha1":
                        hash = HashAlgorithm.Create ("SHA1");
                        break;
                    default:
                        throw new NotImplementedException("Unknown HashAlgorithm: " + algoname );
                }

                byte[] cdigest;
                if ( f.IsCollection() )
                {
                    cdigest = get_TTC_digest( f );

                }
                else
                {
                    cdigest = get_TTF_digest( f );
                }
                StringBuilder hexLine = new StringBuilder ();
                for (int i = 0; i < cdigest.Length; i++) {
                    hexLine.AppendFormat ("{0} ", cdigest [i].ToString ("X2"));
                }
                hexLine.AppendFormat (Environment.NewLine);
                Console.WriteLine("{0} Signed Digest:\t{1}", algoname.ToUpper(), hexLine_sig);
                Console.WriteLine("Calculated Digest:\t{0}", hexLine);
                string root_thumb = "";
            #if HAVE_MONO_X509
                root_thumb =
                    (new System.Security.Cryptography.X509Certificates.X509Certificate2(parent.RawData)).Thumbprint;
                Console.WriteLine("ChainEnd Name: {0}", parent.SubjectName);
                Console.WriteLine("ChainEnd Self-Signed: {0}", parent.IsSelfSigned);
            #endif
                Console.WriteLine("ChainEnd: {0}", root_thumb);
                bool trusted = false;
                try
                {
                    string root_id = trusted_roots[root_thumb];
                    Console.WriteLine("RootID: {0}", root_id);
                    trusted = true;
                }
                catch (KeyNotFoundException)
                {}
                Console.WriteLine("Trusted: {0}", trusted);
            }

            return 0;
        }
Пример #3
0
        static int Main( string[] args )
        {
            if (args.Length == 0) {
                Console.WriteLine("DSIGInfo [-v] [-v] [-v] fontfile");
                return 0;
            }

            OTFile f = new OTFile();
            Table_DSIG tDSIG = null;
            int verbose = 0;
            string filename = null;

            for ( int i = 0; i < args.Length; i++ ) {
                if ( "-v" == args[i] )
                    verbose++;
                else
                    filename = args[i];
            }

            if ( !f.open(filename) )
            {
                    Console.WriteLine("Error: Cannot open {0} as font file", filename);
                    return 0;
            }

            TTCHeader ttc = null;
            if ( f.IsCollection() )
            {
                ttc = f.GetTTCHeader();
                if ( f.GetTableManager().GetUnaliasedTableName(ttc.DsigTag) == "DSIG" )
                {
                MBOBuffer buf = f.ReadPaddedBuffer(ttc.DsigOffset, ttc.DsigLength);
                tDSIG = (Table_DSIG) f.GetTableManager().CreateTableObject(ttc.DsigTag, buf);
                }
            }
            else
            {
                OTFont fn = f.GetFont(0);
                tDSIG = (Table_DSIG) fn.GetTable("DSIG");
            }

            Console.WriteLine("{0} DSIG table: {1}", filename,
                              ( tDSIG == null ) ? "Absent" : "Present" );
            if (tDSIG == null)
                return 0;
            if ( f.IsCollection() && ttc.version != 0x00020000 )
                Console.WriteLine("Warning: TTC has DSIG but header version is 0x{0}, != 0x00020000", ttc.version.ToString("X8"));

            if ( tDSIG.usNumSigs != 1 )
            Console.WriteLine("NumSigs = {0}", tDSIG.usNumSigs);
            for ( uint v = 0; v < tDSIG.usNumSigs ; v++ )
            {
                Table_DSIG.SignatureBlock sgb;
                try {
                    sgb = tDSIG.GetSignatureBlock(v);
                } catch (IndexOutOfRangeException e)
                {
                    Console.WriteLine("Error: Out of Range SignatureBlock {0}", v);
                    break;
                }

                SignedCms cms = new SignedCms();
                cms.Decode(sgb.bSignature);

                if ( cms.SignerInfos.Count > 1 )
                Console.WriteLine( "#SignerInfos: {0}", cms.SignerInfos.Count );
                foreach ( var si in cms.SignerInfos )
                {
                    Console.WriteLine(si.Certificate);
                }
                Console.WriteLine( "#Certificates: {0}", cms.Certificates.Count );
                foreach ( var x509 in cms.Certificates )
                {
                if ( verbose > 0 )
                {
                    Console.WriteLine(x509);
                }
                else
                {
                    Console.WriteLine(x509.IssuerName.Name);
                }
                };

                ASN1 spc = new ASN1(cms.ContentInfo.Content);

                ASN1 playload_oid = null;
                ASN1 oid = null;
                ASN1 digest = null;
                ASN1 obsolete = null;
                if ( Type.GetType("Mono.Runtime") == null )
                {
                    // DotNet is much saner!
                    playload_oid = spc[0][0];
                    obsolete = spc[0][1][0];
                    oid = spc[1][0][0];
                    digest = spc[1][1];
                }
                else
                {
                    playload_oid = spc[0];
                    obsolete = spc[1][0];
                    oid = spc[2][0][0];
                    digest = spc[2][1];
                }
                string algo = ASN1Convert.ToOid (oid);
                Console.WriteLine("Digest Algorithm: {0}", (new Oid(algo)).FriendlyName);
                byte[] Value = digest.Value;
                StringBuilder hexLine = new StringBuilder ();
                for (int i = 0; i < Value.Length; i++) {
                    hexLine.AppendFormat ("{0} ", Value [i].ToString ("X2"));
                }
                hexLine.AppendFormat (Environment.NewLine);
                Console.WriteLine("{0} Digest: {1}", (new Oid(algo)).FriendlyName, hexLine);
            }
            return 0;
        }