FPGA MD5 Cracker

This project is a hardware MD5 cracker built around a high-throughput, pipelined implementation of the MD5 hash function. It consists of three devices:

DE0-Nano FPGA

The workhorse. Other FPGAs will likely work, but this is the one I went with. The design is quite large, consuming 21,257/22,320 (95%) of the logical elements.

Netduino Plus 2

Acts as a programmer, interfacing with the FPGA design via SPI and the computer using Ethernet. I chose the NP2 because it was the only 3.3v SPI master device I had on hand. Others should work, but if you use a DE0-Nano, keep in mind the Cyclone IV is not 5v tolerant. It's also worth noting that, should one choose another device, they'll likely have to rewrite the programmer since the current implementation is written in C#.

Arduino LCD Shield

Displays the output of the cracker. Of course, this doesn't have to be an Arduino shield, but that's what I had. Any Hitachi HD44780 compatible LCD should work. To simplify wiring, the cracker uses the LCD in 4-bit mode.

Circuit

DE0-Nano	Netduino Plus2/LCD
JP2 38	Netduino Plus 2 D10
JP2 39	Netduino Plus 2 D11
JP1 5	Netduino Plus 2 D12
JP2 40	Netduino Plus 2 D13
JP1 30	Netduino Plus 2 Gnd
JP1 35	LCD Shield D4
JP1 36	LCD Shield D5
JP1 37	LCD Shield D6
JP1 38	LCD Shield D7
JP1 39	LCD Shield D8
JP1 40	LCD Shield D9
JP1 11	LCD Shield 5v
JP1 12	LCD Shield Gnd

Name	Jumper	Node Name	Location	Netduino Plus/2 LCD
SS	JP2 38	GPIO_1[31]	PIN_K15	Netduino Plus 2 D10
MOSI	JP2 39	GPIO_1[32]	PIN_J13	Netduino Plus 2 D11
MISO	JP1 5	GPIO[2]	PIN_A2	Netduino Plus 2 D12
SCK	JP2 40	GPIO_1[33]	PIN_J14	Netduino Plus 2 D13
GND	JP1 30			Netduino Plus 2 Gnd
DB4	JP1 35	GPIO[28]	PIN_C11	LCD Shield D4
DB5	JP1 36	GPIO[29]	PIN_B11	LCD Shield D5
DB6	JP1 37	GPIO[30]	PIN_A12	LCD Shield D6
DB7	JP1 38	GPIO[31]	PIN_D11	LCD Shield D7
RS	JP1 39	GPIO[32]	PIN_D12	LCD Shield D8
ENABLE	JP1 40	GPIO[33]	PIN_B12	LCD Shield D9
VCC_SYS	JP1 11			LCD Shield 5v
GND	JP1 12			LCD Shield Gnd