README

The Repository Contains Code for Rowhammer PUF eploitation from the Kernel Space.
The main code for kernel module is located in Kernel_panda.c
Use the rowhammer_logger.sh for logging for data.

To manaully test the kernel module use the below commands with parameters:

$  insmod kernel_panda.ko puf_init_val = 0x0 puf_delaysec =60 puf_base_address =0xa0000000 mystring = "once" hammer_init_value = 0x0 no_hammer_rows = 32 no_PUF_rows = 32

The above insertion in kernel will run for 2 cycles depending upon the delay time, total runtime or decay time can be tested

To remove the module, use the below command

$ rmmod kernel_panda.ko

you can enter the kernel module by using the above commands with different set of parameters
Default Values:
puf_init_val = 0x0 
puf_delaysec =60 
puf_base_address =0xa0000000 
mystring = "once" 
hammer_init_value = 0x0 
no_hammer_rows = 32 
no_PUF_rows = 32

You can vary the parameters as below:
puf_base_address = (0xa0000000 - 0xbfffffff)
no_hammer_rows, no_PUF_rows = {1, 8, 32}
hammer_init_value = {0x00000000, 0x55555555, 0xAAAAAAAA, 0xFFFFFFFF}
puf_delaysec = {1..120}........recommended value - 60
puf_init_val = {0x00000000, 0x55555555, 0xAAAAAAAA, 0xFFFFFFFF}
mystring = {"once", "all"}