Esempio n. 1
0
        public ResourceEntry(EndianIO io)
        {
            Unknown1 = io.ReadUInt32();
            Unknown2 = io.ReadUInt32();

            ResourceInformation = io.ReadUInt64();
        }
Esempio n. 2
0
        /// <summary>
        /// Function verifies the hashes stored in the header of the pkg file. (Does not verify the RSA Signature at POSITION: 0x800)
        /// </summary>
        private void Verify(EndianIO io)
        {
            byte[] hash;

            //verify the resource entry table
            io.Position = 0xB4;
            uint entryCount         = io.ReadUInt32();
            uint entryTableLocation = io.ReadUInt32();

            hash = io.ReadByteArray(0x14);

            io.Position = entryTableLocation;
            if (!Security.ArrayEquals(Security.SHA1(io.ReadByteArray(entryCount * 0x10)), hash))
            {
                throw new Exception("Failed to verify the entry table hash in the pkg file.");
            }

            //verify the data block table
            io.Position = 0xD0;
            uint blockCount         = io.ReadUInt32();
            uint blockTableLocation = io.ReadUInt32();

            hash = io.ReadByteArray(0x14);

            io.Position = blockTableLocation;
            if (!Security.ArrayEquals(Security.SHA1(io.ReadByteArray(blockCount * 0x20)), hash))
            {
                throw new Exception("Failed to verify the block table hash in the pkg file.");
            }

            // verify the symbol table
            io.Position = 0xEC;
            uint symbolCount         = io.ReadUInt32();
            uint symbolTableLocation = io.ReadUInt32();

            hash = io.ReadByteArray(0x14);

            io.Position = symbolTableLocation;
            if (!Security.ArrayEquals(Security.SHA1(io.ReadByteArray(symbolCount * 0x44)), hash))
            {
                throw new Exception("Failed to verify the symbol table hash in the pkg file.");
            }
        }