jamesbond
2012-01-06, 04:26 PM
Hi Guys.
Attached is an informative post for your education on the subject.
1. Abstract..............................................................................................................................2 2. Possible approaches: emulations vs simulation..................................................................3 2.1. How a dongle works.......................................................................................................3 2.2. Emulation of a dongle.....................................................................................................4 2.3. How an emulator works..................................................................................................4 2.4. How a Simulator works...................................................................................................6 3. Disassembling a Sentinel Protected Program.....................................................................7 3.1. Disassembling with IDA.................................................................................................7 3.2. Disassembling with OllyDbg........................................................................................10 4. Some details on the Sentinel Applications’ Programming Interface................................12 4.1. What is Sentinel SuperPro............................................................................................12 4.2. Structure of the key memory.........................................................................................12 4.2.1 Restricted and Programmable Cells......................................................................13 4.2.2 Access Codes........................................................................................................14 4.2.3 Cell Types.............................................................................................................14 4.3. API Function reference.................................................................................................15 5. Re-writing Sentinel APIs..................................................................................................17 5.1. sproFormatPacket..........................................................................................................17 5.2. sproFindFirstUnit..........................................................................................................19 5.3. sproOverwrite................................................................................................................20 5.4. sproFindNextUnit..........................................................................................................20 5.5. sproRead.......................................................................................................................20 5.5.1 sproRead Approach #2..........................................................................................24 5.6. sproQuery......................................................................................................................25 6. What’s more......................................................................................................................29 7. References........................................................................................................................30 8. Conclusions......................................................................................................................31 9. History..............................................................................................................................31 10. Greetings..........................................................................................................................31 Keywords
dongle, simulation, emulation, sentinel superpro
Attached is an informative post for your education on the subject.
1. Abstract..............................................................................................................................2 2. Possible approaches: emulations vs simulation..................................................................3 2.1. How a dongle works.......................................................................................................3 2.2. Emulation of a dongle.....................................................................................................4 2.3. How an emulator works..................................................................................................4 2.4. How a Simulator works...................................................................................................6 3. Disassembling a Sentinel Protected Program.....................................................................7 3.1. Disassembling with IDA.................................................................................................7 3.2. Disassembling with OllyDbg........................................................................................10 4. Some details on the Sentinel Applications’ Programming Interface................................12 4.1. What is Sentinel SuperPro............................................................................................12 4.2. Structure of the key memory.........................................................................................12 4.2.1 Restricted and Programmable Cells......................................................................13 4.2.2 Access Codes........................................................................................................14 4.2.3 Cell Types.............................................................................................................14 4.3. API Function reference.................................................................................................15 5. Re-writing Sentinel APIs..................................................................................................17 5.1. sproFormatPacket..........................................................................................................17 5.2. sproFindFirstUnit..........................................................................................................19 5.3. sproOverwrite................................................................................................................20 5.4. sproFindNextUnit..........................................................................................................20 5.5. sproRead.......................................................................................................................20 5.5.1 sproRead Approach #2..........................................................................................24 5.6. sproQuery......................................................................................................................25 6. What’s more......................................................................................................................29 7. References........................................................................................................................30 8. Conclusions......................................................................................................................31 9. History..............................................................................................................................31 10. Greetings..........................................................................................................................31 Keywords
dongle, simulation, emulation, sentinel superpro