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Greatly improve experiments

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This commit is contained in:
Gregor Haas
2020-02-27 10:23:21 -05:00
parent bf6153062d
commit 1bd577596b
11 changed files with 519 additions and 568 deletions
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2
c8_remote/CMakeLists.txt
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@@ -7,4 +7,4 @@ set(CMAKE_C_FLAGS "-g -Wall")
include_directories(include)
add_executable(checkm8_remote main.c src/usb_helpers.c src/exploit.c src/payload.c src/command.c)
target_link_libraries(checkm8_remote usb-1.0 pthread udev payload m)
target_link_libraries(checkm8_remote usb-1.0 pthread udev m payload experiments)

4
c8_remote/include/bootrom_addr.h
View File

@@ -2,6 +2,7 @@
#define CHECKM8_TOOL_BOOTROM_ADDR_H
#include "checkm8_config.h"
#include "bootrom_type.h"
#if CHECKM8_PLATFORM == 8010
@@ -45,7 +46,8 @@
#define ADDR_DFU_RETVAL (int *) 0x180088ac8
#define ADDR_DFU_STATUS (unsigned char *) 0x180088ac0
#define ADDR_DFU_EVENT (unsigned long long *) 0x180088af0
#define ADDR_DFU_EVENT (struct event *) 0x180088af0
#define ADDR_USB_EVENT (struct event *) 0x1800838c8
#else
#error "Unsupported checkm8 platform"

15
c8_remote/include/bootrom_type.h
View File

@@ -3,12 +3,21 @@
struct event
{
unsigned long long dat0;
unsigned long long dat1;
unsigned int dat0;
unsigned int dat1;
unsigned long long dat2;
unsigned long long dat3;
} __attribute__ ((packed));
struct aes_sw_bernstein_data
struct aes_constants
{
unsigned char sbox[16][16];
unsigned char rc_lookup[11];
unsigned char mul2[256];
unsigned char mul3[256];
} __attribute__ ((packed));
struct bern_data
{
double t[16][256];
double tsq[16][256];

18
c8_remote/include/experiments.h Normal file
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@@ -0,0 +1,18 @@
#ifndef CHECKM8_TOOL_EXPERIMENTS_H
#define CHECKM8_TOOL_EXPERIMENTS_H
#include "payload.h"
#include "bootrom_type.h"
/* AES Software */
DEV_PTR_T setup_bern_exp(struct pwned_device *dev);
struct bern_data *get_bern_exp_data(struct pwned_device *dev, DEV_PTR_T async_buf);
/* System */
void usb_task_exit(struct pwned_device *dev);
/* Power */
void floppysleep(struct pwned_device *dev);
void floppysleep_async(struct pwned_device *dev);
#endif //CHECKM8_TOOL_EXPERIMENTS_H

4
c8_remote/lib/CMakeLists.txt
View File

@@ -35,4 +35,6 @@ add_custom_command(TARGET payload POST_BUILD
BYPRODUCTS ${CMAKE_SOURCE_DIR}/c8_remote/include/libpayload.h
COMMAND python3 ${CMAKE_CURRENT_LIST_DIR}/scripts/headerize.py
${CMAKE_CURRENT_BINARY_DIR}/lib_cfiles
${CMAKE_SOURCE_DIR}/c8_remote/include)
${CMAKE_SOURCE_DIR}/c8_remote/include)
add_library(experiments experiments/aes_sw.c experiments/system.c experiments/power.c)

240
c8_remote/lib/experiments/aes_sw.c Normal file
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@@ -0,0 +1,240 @@
#include "experiments.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stddef.h>
#include "bootrom_addr.h"
#include "usb_helpers.h"
#include "command.h"
static unsigned char sbox[256] =
{
0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16
};
static unsigned char rc_lookup[11] = {0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c};
static unsigned char mul2_lookup[256] =
{
0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e,
0x40, 0x42, 0x44, 0x46, 0x48, 0x4a, 0x4c, 0x4e, 0x50, 0x52, 0x54, 0x56, 0x58, 0x5a, 0x5c, 0x5e,
0x60, 0x62, 0x64, 0x66, 0x68, 0x6a, 0x6c, 0x6e, 0x70, 0x72, 0x74, 0x76, 0x78, 0x7a, 0x7c, 0x7e,
0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8c, 0x8e, 0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9c, 0x9e,
0xa0, 0xa2, 0xa4, 0xa6, 0xa8, 0xaa, 0xac, 0xae, 0xb0, 0xb2, 0xb4, 0xb6, 0xb8, 0xba, 0xbc, 0xbe,
0xc0, 0xc2, 0xc4, 0xc6, 0xc8, 0xca, 0xcc, 0xce, 0xd0, 0xd2, 0xd4, 0xd6, 0xd8, 0xda, 0xdc, 0xde,
0xe0, 0xe2, 0xe4, 0xe6, 0xe8, 0xea, 0xec, 0xee, 0xf0, 0xf2, 0xf4, 0xf6, 0xf8, 0xfa, 0xfc, 0xfe,
0x1b, 0x19, 0x1f, 0x1d, 0x13, 0x11, 0x17, 0x15, 0x0b, 0x09, 0x0f, 0x0d, 0x03, 0x01, 0x07, 0x05,
0x3b, 0x39, 0x3f, 0x3d, 0x33, 0x31, 0x37, 0x35, 0x2b, 0x29, 0x2f, 0x2d, 0x23, 0x21, 0x27, 0x25,
0x5b, 0x59, 0x5f, 0x5d, 0x53, 0x51, 0x57, 0x55, 0x4b, 0x49, 0x4f, 0x4d, 0x43, 0x41, 0x47, 0x45,
0x7b, 0x79, 0x7f, 0x7d, 0x73, 0x71, 0x77, 0x75, 0x6b, 0x69, 0x6f, 0x6d, 0x63, 0x61, 0x67, 0x65,
0x9b, 0x99, 0x9f, 0x9d, 0x93, 0x91, 0x97, 0x95, 0x8b, 0x89, 0x8f, 0x8d, 0x83, 0x81, 0x87, 0x85,
0xbb, 0xb9, 0xbf, 0xbd, 0xb3, 0xb1, 0xb7, 0xb5, 0xab, 0xa9, 0xaf, 0xad, 0xa3, 0xa1, 0xa7, 0xa5,
0xdb, 0xd9, 0xdf, 0xdd, 0xd3, 0xd1, 0xd7, 0xd5, 0xcb, 0xc9, 0xcf, 0xcd, 0xc3, 0xc1, 0xc7, 0xc5,
0xfb, 0xf9, 0xff, 0xfd, 0xf3, 0xf1, 0xf7, 0xf5, 0xeb, 0xe9, 0xef, 0xed, 0xe3, 0xe1, 0xe7, 0xe5
};
static unsigned char mul3_lookup[256] =
{
0x00, 0x03, 0x06, 0x05, 0x0c, 0x0f, 0x0a, 0x09, 0x18, 0x1b, 0x1e, 0x1d, 0x14, 0x17, 0x12, 0x11,
0x30, 0x33, 0x36, 0x35, 0x3c, 0x3f, 0x3a, 0x39, 0x28, 0x2b, 0x2e, 0x2d, 0x24, 0x27, 0x22, 0x21,
0x60, 0x63, 0x66, 0x65, 0x6c, 0x6f, 0x6a, 0x69, 0x78, 0x7b, 0x7e, 0x7d, 0x74, 0x77, 0x72, 0x71,
0x50, 0x53, 0x56, 0x55, 0x5c, 0x5f, 0x5a, 0x59, 0x48, 0x4b, 0x4e, 0x4d, 0x44, 0x47, 0x42, 0x41,
0xc0, 0xc3, 0xc6, 0xc5, 0xcc, 0xcf, 0xca, 0xc9, 0xd8, 0xdb, 0xde, 0xdd, 0xd4, 0xd7, 0xd2, 0xd1,
0xf0, 0xf3, 0xf6, 0xf5, 0xfc, 0xff, 0xfa, 0xf9, 0xe8, 0xeb, 0xee, 0xed, 0xe4, 0xe7, 0xe2, 0xe1,
0xa0, 0xa3, 0xa6, 0xa5, 0xac, 0xaf, 0xaa, 0xa9, 0xb8, 0xbb, 0xbe, 0xbd, 0xb4, 0xb7, 0xb2, 0xb1,
0x90, 0x93, 0x96, 0x95, 0x9c, 0x9f, 0x9a, 0x99, 0x88, 0x8b, 0x8e, 0x8d, 0x84, 0x87, 0x82, 0x81,
0x9b, 0x98, 0x9d, 0x9e, 0x97, 0x94, 0x91, 0x92, 0x83, 0x80, 0x85, 0x86, 0x8f, 0x8c, 0x89, 0x8a,
0xab, 0xa8, 0xad, 0xae, 0xa7, 0xa4, 0xa1, 0xa2, 0xb3, 0xb0, 0xb5, 0xb6, 0xbf, 0xbc, 0xb9, 0xba,
0xfb, 0xf8, 0xfd, 0xfe, 0xf7, 0xf4, 0xf1, 0xf2, 0xe3, 0xe0, 0xe5, 0xe6, 0xef, 0xec, 0xe9, 0xea,
0xcb, 0xc8, 0xcd, 0xce, 0xc7, 0xc4, 0xc1, 0xc2, 0xd3, 0xd0, 0xd5, 0xd6, 0xdf, 0xdc, 0xd9, 0xda,
0x5b, 0x58, 0x5d, 0x5e, 0x57, 0x54, 0x51, 0x52, 0x43, 0x40, 0x45, 0x46, 0x4f, 0x4c, 0x49, 0x4a,
0x6b, 0x68, 0x6d, 0x6e, 0x67, 0x64, 0x61, 0x62, 0x73, 0x70, 0x75, 0x76, 0x7f, 0x7c, 0x79, 0x7a,
0x3b, 0x38, 0x3d, 0x3e, 0x37, 0x34, 0x31, 0x32, 0x23, 0x20, 0x25, 0x26, 0x2f, 0x2c, 0x29, 0x2a,
0x0b, 0x08, 0x0d, 0x0e, 0x07, 0x04, 0x01, 0x02, 0x13, 0x10, 0x15, 0x16, 0x1f, 0x1c, 0x19, 0x1a
};
DEV_PTR_T install_aes_data(struct pwned_device *dev)
{
int close;
DEV_PTR_T res;
struct aes_constants *constants = malloc(sizeof(struct aes_constants));
memcpy(constants->sbox, sbox, sizeof(sbox));
memcpy(constants->rc_lookup, rc_lookup, sizeof(rc_lookup));
memcpy(constants->mul2, mul2_lookup, sizeof(mul2_lookup));
memcpy(constants->mul3, mul3_lookup, sizeof(mul3_lookup));
if(is_device_session_open(dev)) close = 0;
else
{
close = 1;
if(IS_CHECKM8_FAIL(open_device_session(dev)))
{
printf("failed to open device session\n");
free(constants);
return DEV_PTR_NULL;
}
}
res = install_data(dev, SRAM, (unsigned char *) constants, sizeof(struct aes_constants));
if(res == DEV_PTR_NULL)
{
printf("failed to write AES constants\n");
free(constants);
return DEV_PTR_NULL;
}
if(close)
{
if(IS_CHECKM8_FAIL(close_device_session(dev)))
{
printf("failed to close device session\n");
free(constants);
return DEV_PTR_NULL;
}
}
free(constants);
return res;
}
DEV_PTR_T setup_bern_exp(struct pwned_device *dev)
{
DEV_PTR_T addr_data, addr_key, addr_async_buf, addr_constants;
struct dev_cmd_resp *resp;
unsigned char data[16];
unsigned char key[16];
memset(key, 0x1, 16);
if(IS_CHECKM8_FAIL(open_device_session(dev)))
{
printf("failed to open device session\n");
return DEV_PTR_NULL;
}
addr_constants = install_aes_data(dev);
if(addr_constants == DEV_PTR_NULL)
{
printf("failed to install aes constants\n");
return DEV_PTR_NULL;
}
addr_data = install_data(dev, SRAM, data, 16);
if(addr_data == DEV_PTR_NULL)
{
printf("failed to install aes data\n");
return DEV_PTR_NULL;
}
addr_key = install_data(dev, SRAM, key, 16);
if(addr_key == DEV_PTR_NULL)
{
printf("failed to install aes key\n");
return DEV_PTR_NULL;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_SYNC, SRAM)))
{
printf("failed to install sync payload\n");
return DEV_PTR_NULL;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_AES_SW, SRAM)))
{
printf("failed to install aes payload\n");
return DEV_PTR_NULL;
}
resp = execute_payload(dev, PAYLOAD_SYNC, 0, 0);
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to execute sync payload\n");
free_dev_cmd_resp(resp);
return DEV_PTR_NULL;
}
free_dev_cmd_resp(resp);
addr_async_buf = setup_payload_async(dev, PAYLOAD_AES_SW,
sizeof(struct bern_data),
4, addr_data, 16, addr_key, addr_constants);
run_payload_async(dev, PAYLOAD_AES_SW);
if(IS_CHECKM8_FAIL(close_device_session(dev)))
{
printf("failed to close device session\n");
return DEV_PTR_NULL;
}
return addr_async_buf;
}
struct bern_data *get_bern_exp_data(struct pwned_device *dev, DEV_PTR_T async_buf)
{
struct dev_cmd_resp *resp;
struct bern_data *res;
if(IS_CHECKM8_FAIL(open_device_session(dev)))
{
printf("failed to open device session\n");
return NULL;
}
resp = execute_gadget(dev, ADDR_EVENT_NOTIFY, 0, 1,
async_buf + offsetof(struct bern_data, ev_data));
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to signal for data\n");
free_dev_cmd_resp(resp);
return NULL;
}
free_dev_cmd_resp(resp);
resp = read_gadget(dev, async_buf, sizeof(struct bern_data));
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to get data from device\n");
free_dev_cmd_resp(resp);
return NULL;
}
res = (struct bern_data *) resp->data;
free(resp);
resp = execute_gadget(dev, ADDR_EVENT_NOTIFY, 0, 1,
async_buf + offsetof(struct bern_data, ev_done));
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to signal data end\n");
free(res);
free_dev_cmd_resp(resp);
return NULL;
}
free_dev_cmd_resp(resp);
if(IS_CHECKM8_FAIL(close_device_session(dev)))
{
printf("failed to close device session\n");
free(res);
return NULL;
}
return res;
}

109
c8_remote/lib/experiments/power.c Normal file
View File

@@ -0,0 +1,109 @@
#include "experiments.h"
#include <stdio.h>
#include "usb_helpers.h"
#include "command.h"
void floppysleep(struct pwned_device *dev)
{
struct dev_cmd_resp *resp;
if(IS_CHECKM8_FAIL(open_device_session(dev)))
{
printf("failed to open device session\n");
return;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_SYNC, SRAM)))
{
printf("failed to install sync payload\n");
return;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_FLOPPYSLEEP, SRAM)))
{
printf("failed to install task sleep payload\n");
return;
}
float init_a = -7.504355E-39f;
DEV_PTR_T init_a_ptr = install_data(dev, SRAM, (unsigned char *) &init_a, sizeof(float));
if(init_a_ptr == DEV_PTR_NULL)
{
printf("failed to write initial data\n");
return;
}
resp = execute_payload(dev, PAYLOAD_SYNC, 0, 0);
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to execute bootstrap\n");
return;
}
free_dev_cmd_resp(resp);
resp = execute_payload(dev, PAYLOAD_FLOPPYSLEEP, 0, 1, init_a_ptr);
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to execute flopsleep payload\n");
return;
}
printf("retval is %08lli\n", resp->retval);
free_dev_cmd_resp(resp);
close_device_session(dev);
}
void floppysleep_async(struct pwned_device *dev)
{
float init_a = -7.504355E-39f;
DEV_PTR_T init_a_ptr, async_buf_ptr;
struct dev_cmd_resp *resp;
if(IS_CHECKM8_FAIL(open_device_session(dev)))
{
printf("failed to open device session\n");
return;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_SYNC, SRAM)))
{
printf("failed to install sync payload\n");
return;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_FLOPPYSLEEP, SRAM)))
{
printf("failed to install task sleep payload\n");
return;
}
init_a_ptr = install_data(dev, SRAM, (unsigned char *) &init_a, sizeof(float));
if(init_a_ptr == DEV_PTR_NULL)
{
printf("failed to write initial data\n");
return;
}
resp = execute_payload(dev, PAYLOAD_SYNC, 0, 0);
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to execute bootstrap\n");
return;
}
free_dev_cmd_resp(resp);
async_buf_ptr = setup_payload_async(dev, PAYLOAD_FLOPPYSLEEP, 32, 1, init_a_ptr);
run_payload_async(dev, PAYLOAD_FLOPPYSLEEP);
close_device_session(dev);
printf("async buf pointer is %llX\n", async_buf_ptr);
// sleep(10);
//
// open_device_session(dev);
// resp = read_gadget(dev, async_buf_ptr, 8);
// close_device_session(dev);
}

56
c8_remote/lib/experiments/system.c Normal file
View File

@@ -0,0 +1,56 @@
#include "experiments.h"
#include <stdio.h>
#include "usb_helpers.h"
#include "command.h"
void usb_task_exit(struct pwned_device *dev)
{
struct dev_cmd_resp *resp;
if(IS_CHECKM8_FAIL(open_device_session(dev)))
{
printf("failed to open device session\n");
return;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_SYNC, SRAM)))
{
printf("failed to install sync payload\n");
return;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_EXIT_USB_TASK, SRAM)))
{
printf("failed to install sync payload\n");
return;
}
resp = execute_payload(dev, PAYLOAD_SYNC, 0, 0);
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to execute bootstrap\n");
return;
}
free_dev_cmd_resp(resp);
if(IS_CHECKM8_FAIL(uninstall_payload(dev, PAYLOAD_SYNC)))
{
printf("failed to uninstall sync payload\n");
return;
}
resp = execute_payload(dev, PAYLOAD_EXIT_USB_TASK, 0,
1, get_payload_address(dev, PAYLOAD_EXIT_USB_TASK));
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to exit usb task\n");
return;
}
if(IS_CHECKM8_FAIL(close_device_session(dev)))
{
printf("failed to close device session\n");
return;
}
}

54
c8_remote/lib/payload/src/aes_sw.c
View File

@@ -3,7 +3,7 @@
#include "cacheutil.h"
PAYLOAD_SECTION
void sub_bytes(unsigned char block[16], unsigned char sbox[16][16])
void sub_bytes(unsigned char block[16], struct aes_constants *c)
{
int i;
unsigned char val;
@@ -11,7 +11,7 @@ void sub_bytes(unsigned char block[16], unsigned char sbox[16][16])
for(i = 0; i < 16; i++)
{
val = block[i];
block[i] = sbox[val >> 4u][val & 0xfu];
block[i] = c->sbox[val >> 4u][val & 0xfu];
}
}
@@ -41,8 +41,7 @@ void shift_rows(unsigned char block[16])
}
PAYLOAD_SECTION
void mix_cols(unsigned char block[16],
unsigned char mul2_lookup[256], unsigned char mul3_lookup[256])
void mix_cols(unsigned char block[16], struct aes_constants *c)
{
unsigned char r0, r1, r2, r3;
int i;
@@ -55,10 +54,10 @@ void mix_cols(unsigned char block[16],
r3 = block[4 * i + 3];
// no reason for the "+ 0" here but it makes the code look more lined up :)
block[4 * i + 0] = mul2_lookup[r0] ^ mul3_lookup[r1] ^ r2 ^ r3;
block[4 * i + 1] = r0 ^ mul2_lookup[r1] ^ mul3_lookup[r2] ^ r3;
block[4 * i + 2] = r0 ^ r1 ^ mul2_lookup[r2] ^ mul3_lookup[r3];
block[4 * i + 3] = mul3_lookup[r0] ^ r1 ^ r2 ^ mul2_lookup[r3];
block[4 * i + 0] = c->mul2[r0] ^ c->mul3[r1] ^ r2 ^ r3;
block[4 * i + 1] = r0 ^ c->mul2[r1] ^ c->mul3[r2] ^ r3;
block[4 * i + 2] = r0 ^ r1 ^ c->mul2[r2] ^ c->mul3[r3];
block[4 * i + 3] = c->mul3[r0] ^ r1 ^ r2 ^ c->mul2[r3];
}
}
@@ -74,7 +73,7 @@ void add_key(unsigned char block[16], unsigned char key[16])
PAYLOAD_SECTION
void expand_key(unsigned char key[16], unsigned char key_sched[176], int n,
unsigned char sbox[16][16], unsigned char rc_lookup[11])
struct aes_constants *c)
{
int i, j, prev_key_base, key_base = 0;
unsigned char val;
@@ -91,13 +90,13 @@ void expand_key(unsigned char key[16], unsigned char key_sched[176], int n,
for(j = 0; j < 3; j++)
{
val = key_sched[prev_key_base + 13 + j];
key_sched[key_base + j] = sbox[val >> 4u][val & 0xfu];
key_sched[key_base + j] = c->sbox[val >> 4u][val & 0xfu];
}
val = key_sched[prev_key_base + 12];
key_sched[key_base + 3] = sbox[val >> 4u][val & 0xfu];
key_sched[key_base + 3] = c->sbox[val >> 4u][val & 0xfu];
key_sched[key_base] ^= rc_lookup[i - 1];
key_sched[key_base] ^= c->rc_lookup[i - 1];
for(j = 0; j < 4; j++)
{
@@ -112,9 +111,8 @@ void expand_key(unsigned char key[16], unsigned char key_sched[176], int n,
}
PAYLOAD_SECTION
void aes128_encrypt_ecb(unsigned char *msg, unsigned int msg_len, unsigned char key[16],
unsigned char sbox[16][16], unsigned char key_sched[176],
unsigned char mul2[256], unsigned char mul3[256])
void aes128_encrypt_ecb(unsigned char *msg, unsigned int msg_len,
unsigned char key_sched[176], struct aes_constants *c)
{
unsigned int num_blocks = msg_len / 16;
unsigned char *block;
@@ -127,13 +125,13 @@ void aes128_encrypt_ecb(unsigned char *msg, unsigned int msg_len, unsigned char
for(j = 0; j < 9; j++)
{
sub_bytes(block, sbox);
sub_bytes(block, c);
shift_rows(block);
mix_cols(block, mul2, mul3);
mix_cols(block, c);
add_key(block, &key_sched[16 * (j + 1)]);
}
sub_bytes(block, sbox);
sub_bytes(block, c);
shift_rows(block);
add_key(block, &key_sched[16 * (j + 1)]);
}
@@ -141,13 +139,14 @@ void aes128_encrypt_ecb(unsigned char *msg, unsigned int msg_len, unsigned char
PAYLOAD_SECTION
uint64_t entry_sync(unsigned char *msg, unsigned int msg_len, unsigned char key[16],
unsigned char sbox[16][16], unsigned char rc_lookup[11],
unsigned char mul2[256], unsigned char mul3[256])
struct aes_constants *c)
{
unsigned long long start = 0;
unsigned char key_sched[176];
expand_key(key, key_sched, 11, c);
start = get_ticks();
aes128_encrypt_ecb(msg, msg_len, key, sbox, rc_lookup, mul2, mul3);
aes128_encrypt_ecb(msg, msg_len, key, c);
return get_ticks() - start;
}
@@ -156,7 +155,7 @@ void entry_async(uint64_t *base)
{
int i, j, iter_count = 0;
unsigned long long start = 0;
unsigned char *addr;
struct event *usb_event = ADDR_USB_EVENT;
unsigned char msg_old[16];
unsigned char key_sched[176];
@@ -166,15 +165,12 @@ void entry_async(uint64_t *base)
unsigned char *msg = (unsigned char *) base[0];
unsigned int msg_len = (unsigned int) base[1];
unsigned char *key = (unsigned char *) base[2];
unsigned char *sbox = (unsigned char *) base[3];
unsigned char *rc_lookup = (unsigned char *) base[4];
unsigned char *mul2 = (unsigned char *) base[5];
unsigned char *mul3 = (unsigned char *) base[6];
struct aes_constants *c = (struct aes_constants *) base[3];
expand_key(key, key_sched, 11, sbox, rc_lookup);
expand_key(key, key_sched, 11, c);
// initialize events and buffers
struct aes_sw_bernstein_data *data = (struct aes_sw_bernstein_data *) base;
struct bern_data *data = (struct bern_data *) base;
event_new(&data->ev_data, 1, 0);
event_new(&data->ev_done, 1, 0);
@@ -197,7 +193,7 @@ void entry_async(uint64_t *base)
// encrypt it and measure time
start = get_ticks();
aes128_encrypt_ecb(msg, msg_len, key, sbox, key_sched, mul2, mul3);
aes128_encrypt_ecb(msg, msg_len, key_sched, c);
timing = (double) (get_ticks() - start);
// update counters

583
c8_remote/main.c
View File

@@ -5,19 +5,17 @@
#include <stdlib.h>
#include <math.h>
#include <unistd.h>
#include <zconf.h>
#include "command.h"
#include "payload.h"
#include "usb_helpers.h"
#include "bootrom_addr.h"
#include "bootrom_type.h"
#include "experiments.h"
#ifdef CHECKM8_LOGGING
#include <stdarg.h>
#include <execinfo.h>
#include <stdlib.h>
#endif
@@ -49,451 +47,8 @@ void checkm8_debug_block(const char *format, ...)
#endif
}
void floppysleep(struct pwned_device *dev)
void record_bern_data(struct bern_data *data)
{
struct dev_cmd_resp *resp;
if(IS_CHECKM8_FAIL(open_device_session(dev)))
{
printf("failed to open device session\n");
return;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_SYNC, SRAM)))
{
printf("failed to install sync payload\n");
return;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_FLOPPYSLEEP, SRAM)))
{
printf("failed to install task sleep payload\n");
return;
}
float init_a = -7.504355E-39f;
DEV_PTR_T init_a_ptr = install_data(dev, SRAM, (unsigned char *) &init_a, sizeof(float));
if(init_a_ptr == DEV_PTR_NULL)
{
printf("failed to write initial data\n");
return;
}
resp = execute_payload(dev, PAYLOAD_SYNC, 0, 0);
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to execute bootstrap\n");
return;
}
free_dev_cmd_resp(resp);
resp = execute_payload(dev, PAYLOAD_FLOPPYSLEEP, 0, 1, init_a_ptr);
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to execute flopsleep payload\n");
return;
}
printf("retval is %08lli\n", resp->retval);
free_dev_cmd_resp(resp);
close_device_session(dev);
}
void floppysleep_async(struct pwned_device *dev)
{
float init_a = -7.504355E-39f;
DEV_PTR_T init_a_ptr, async_buf_ptr;
struct dev_cmd_resp *resp;
if(IS_CHECKM8_FAIL(open_device_session(dev)))
{
printf("failed to open device session\n");
return;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_SYNC, SRAM)))
{
printf("failed to install sync payload\n");
return;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_FLOPPYSLEEP, SRAM)))
{
printf("failed to install task sleep payload\n");
return;
}
init_a_ptr = install_data(dev, SRAM, (unsigned char *) &init_a, sizeof(float));
if(init_a_ptr == DEV_PTR_NULL)
{
printf("failed to write initial data\n");
return;
}
resp = execute_payload(dev, PAYLOAD_SYNC, 0, 0);
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to execute bootstrap\n");
return;
}
free_dev_cmd_resp(resp);
async_buf_ptr = setup_payload_async(dev, PAYLOAD_FLOPPYSLEEP, 32, 1, init_a_ptr);
run_payload_async(dev, PAYLOAD_FLOPPYSLEEP);
close_device_session(dev);
printf("async buf pointer is %llX\n", async_buf_ptr);
// sleep(10);
//
// open_device_session(dev);
// resp = read_gadget(dev, async_buf_ptr, 8);
// close_device_session(dev);
}
struct aes_pointers
{
DEV_PTR_T addr_sbox;
DEV_PTR_T addr_rc;
DEV_PTR_T addr_mul2;
DEV_PTR_T addr_mul3;
};
struct aes_pointers *install_aes_data(struct pwned_device *dev)
{
int close;
struct aes_pointers *res = malloc(sizeof(struct aes_pointers));
unsigned char sbox[256] =
{
0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16
};
unsigned char rc_lookup[11] = {0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c};
unsigned char mul2_lookup[256] =
{
0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e,
0x40, 0x42, 0x44, 0x46, 0x48, 0x4a, 0x4c, 0x4e, 0x50, 0x52, 0x54, 0x56, 0x58, 0x5a, 0x5c, 0x5e,
0x60, 0x62, 0x64, 0x66, 0x68, 0x6a, 0x6c, 0x6e, 0x70, 0x72, 0x74, 0x76, 0x78, 0x7a, 0x7c, 0x7e,
0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8c, 0x8e, 0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9c, 0x9e,
0xa0, 0xa2, 0xa4, 0xa6, 0xa8, 0xaa, 0xac, 0xae, 0xb0, 0xb2, 0xb4, 0xb6, 0xb8, 0xba, 0xbc, 0xbe,
0xc0, 0xc2, 0xc4, 0xc6, 0xc8, 0xca, 0xcc, 0xce, 0xd0, 0xd2, 0xd4, 0xd6, 0xd8, 0xda, 0xdc, 0xde,
0xe0, 0xe2, 0xe4, 0xe6, 0xe8, 0xea, 0xec, 0xee, 0xf0, 0xf2, 0xf4, 0xf6, 0xf8, 0xfa, 0xfc, 0xfe,
0x1b, 0x19, 0x1f, 0x1d, 0x13, 0x11, 0x17, 0x15, 0x0b, 0x09, 0x0f, 0x0d, 0x03, 0x01, 0x07, 0x05,
0x3b, 0x39, 0x3f, 0x3d, 0x33, 0x31, 0x37, 0x35, 0x2b, 0x29, 0x2f, 0x2d, 0x23, 0x21, 0x27, 0x25,
0x5b, 0x59, 0x5f, 0x5d, 0x53, 0x51, 0x57, 0x55, 0x4b, 0x49, 0x4f, 0x4d, 0x43, 0x41, 0x47, 0x45,
0x7b, 0x79, 0x7f, 0x7d, 0x73, 0x71, 0x77, 0x75, 0x6b, 0x69, 0x6f, 0x6d, 0x63, 0x61, 0x67, 0x65,
0x9b, 0x99, 0x9f, 0x9d, 0x93, 0x91, 0x97, 0x95, 0x8b, 0x89, 0x8f, 0x8d, 0x83, 0x81, 0x87, 0x85,
0xbb, 0xb9, 0xbf, 0xbd, 0xb3, 0xb1, 0xb7, 0xb5, 0xab, 0xa9, 0xaf, 0xad, 0xa3, 0xa1, 0xa7, 0xa5,
0xdb, 0xd9, 0xdf, 0xdd, 0xd3, 0xd1, 0xd7, 0xd5, 0xcb, 0xc9, 0xcf, 0xcd, 0xc3, 0xc1, 0xc7, 0xc5,
0xfb, 0xf9, 0xff, 0xfd, 0xf3, 0xf1, 0xf7, 0xf5, 0xeb, 0xe9, 0xef, 0xed, 0xe3, 0xe1, 0xe7, 0xe5
};
unsigned char mul3_lookup[256] =
{
0x00, 0x03, 0x06, 0x05, 0x0c, 0x0f, 0x0a, 0x09, 0x18, 0x1b, 0x1e, 0x1d, 0x14, 0x17, 0x12, 0x11,
0x30, 0x33, 0x36, 0x35, 0x3c, 0x3f, 0x3a, 0x39, 0x28, 0x2b, 0x2e, 0x2d, 0x24, 0x27, 0x22, 0x21,
0x60, 0x63, 0x66, 0x65, 0x6c, 0x6f, 0x6a, 0x69, 0x78, 0x7b, 0x7e, 0x7d, 0x74, 0x77, 0x72, 0x71,
0x50, 0x53, 0x56, 0x55, 0x5c, 0x5f, 0x5a, 0x59, 0x48, 0x4b, 0x4e, 0x4d, 0x44, 0x47, 0x42, 0x41,
0xc0, 0xc3, 0xc6, 0xc5, 0xcc, 0xcf, 0xca, 0xc9, 0xd8, 0xdb, 0xde, 0xdd, 0xd4, 0xd7, 0xd2, 0xd1,
0xf0, 0xf3, 0xf6, 0xf5, 0xfc, 0xff, 0xfa, 0xf9, 0xe8, 0xeb, 0xee, 0xed, 0xe4, 0xe7, 0xe2, 0xe1,
0xa0, 0xa3, 0xa6, 0xa5, 0xac, 0xaf, 0xaa, 0xa9, 0xb8, 0xbb, 0xbe, 0xbd, 0xb4, 0xb7, 0xb2, 0xb1,
0x90, 0x93, 0x96, 0x95, 0x9c, 0x9f, 0x9a, 0x99, 0x88, 0x8b, 0x8e, 0x8d, 0x84, 0x87, 0x82, 0x81,
0x9b, 0x98, 0x9d, 0x9e, 0x97, 0x94, 0x91, 0x92, 0x83, 0x80, 0x85, 0x86, 0x8f, 0x8c, 0x89, 0x8a,
0xab, 0xa8, 0xad, 0xae, 0xa7, 0xa4, 0xa1, 0xa2, 0xb3, 0xb0, 0xb5, 0xb6, 0xbf, 0xbc, 0xb9, 0xba,
0xfb, 0xf8, 0xfd, 0xfe, 0xf7, 0xf4, 0xf1, 0xf2, 0xe3, 0xe0, 0xe5, 0xe6, 0xef, 0xec, 0xe9, 0xea,
0xcb, 0xc8, 0xcd, 0xce, 0xc7, 0xc4, 0xc1, 0xc2, 0xd3, 0xd0, 0xd5, 0xd6, 0xdf, 0xdc, 0xd9, 0xda,
0x5b, 0x58, 0x5d, 0x5e, 0x57, 0x54, 0x51, 0x52, 0x43, 0x40, 0x45, 0x46, 0x4f, 0x4c, 0x49, 0x4a,
0x6b, 0x68, 0x6d, 0x6e, 0x67, 0x64, 0x61, 0x62, 0x73, 0x70, 0x75, 0x76, 0x7f, 0x7c, 0x79, 0x7a,
0x3b, 0x38, 0x3d, 0x3e, 0x37, 0x34, 0x31, 0x32, 0x23, 0x20, 0x25, 0x26, 0x2f, 0x2c, 0x29, 0x2a,
0x0b, 0x08, 0x0d, 0x0e, 0x07, 0x04, 0x01, 0x02, 0x13, 0x10, 0x15, 0x16, 0x1f, 0x1c, 0x19, 0x1a
};
if(is_device_session_open(dev)) close = 0;
else
{
close = 1;
if(IS_CHECKM8_FAIL(open_device_session(dev)))
{
printf("failed to open device session\n");
free(res);
return NULL;
}
}
res->addr_sbox = install_data(dev, SRAM, sbox, 256);
if(res->addr_sbox == DEV_PTR_NULL)
{
printf("failed to write sbox\n");
free(res);
return NULL;
}
res->addr_rc = install_data(dev, SRAM, rc_lookup, 11);
if(res->addr_rc == DEV_PTR_NULL)
{
printf("failed to write rc lookup\n");
free(res);
return NULL;
}
res->addr_mul2 = install_data(dev, SRAM, mul2_lookup, 256);
if(res->addr_mul2 == DEV_PTR_NULL)
{
printf("failed to write mul2 lookup\n");
free(res);
return NULL;
}
res->addr_mul3 = install_data(dev, SRAM, mul3_lookup, 256);
if(res->addr_mul3 == DEV_PTR_NULL)
{
printf("failed to write mul3 lookup\n");
free(res);
return NULL;
}
if(close)
{
if(IS_CHECKM8_FAIL(close_device_session(dev)))
{
printf("failed to close device session\n");
free(res);
return NULL;
}
}
return res;
}
void aes_sw(struct pwned_device *dev)
{
int i = 0;
struct dev_cmd_resp *resp;
struct aes_pointers *ptrs = install_aes_data(dev);
DEV_PTR_T addr_key, addr_data;
unsigned char key[16] = {};
unsigned char data[16] = {};
addr_key = install_data(dev, SRAM, key, 16);
if(addr_key == DEV_PTR_NULL)
{
printf("failed to write key\n");
return;
}
addr_data = install_data(dev, SRAM, data, 16);
if(addr_data == DEV_PTR_NULL)
{
printf("failed to write data\n");
return;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_SYNC, SRAM)))
{
printf("failed to install sync payload\n");
return;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_AES_SW, SRAM)))
{
printf("failed to install task sleep payload\n");
return;
}
resp = execute_payload(dev, PAYLOAD_SYNC, 0, 0);
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to execute sync payload\n");
return;
}
for(i = 0; i < 100; i++)
{
resp = execute_payload(dev, PAYLOAD_AES_SW, 0, 7,
addr_data, 16, addr_key,
ptrs->addr_sbox, ptrs->addr_rc, ptrs->addr_mul2, ptrs->addr_mul3);
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to execute sw AES payload\n");
return;
}
printf("%i) op took %llu\n", i, resp->retval);
free_dev_cmd_resp(resp);
// resp = read_gadget(dev, addr_data, 16);
// if(IS_CHECKM8_FAIL(resp->ret))
// {
// printf("failed to read encrypted data from memory\n");
// }
//
// printf(" -> ");
// for(int j = 0; j < 16; j++)
// {
// printf("%02x", resp->data[j]);
// }
// printf("\n");
//
// free_dev_cmd_resp(resp);
//usleep(1000000);
}
uninstall_all_payloads(dev);
uninstall_all_data(dev);
close_device_session(dev);
}
DEV_PTR_T aes_sw_bernstein(struct pwned_device *dev)
{
DEV_PTR_T addr_data, addr_key, addr_async_buf;
unsigned char data[16];
unsigned char key[16];
memset(key, 0x1, 16);
if(IS_CHECKM8_FAIL(open_device_session(dev)))
{
printf("failed to open device session\n");
return DEV_PTR_NULL;
}
struct dev_cmd_resp *resp;
struct aes_pointers *ptrs = install_aes_data(dev);
if(ptrs == NULL)
{
printf("failed to install aes constants\n");
return DEV_PTR_NULL;
}
addr_data = install_data(dev, SRAM, data, 16);
if(addr_data == DEV_PTR_NULL)
{
printf("failed to install aes data\n");
return DEV_PTR_NULL;
}
addr_key = install_data(dev, SRAM, key, 16);
if(addr_key == DEV_PTR_NULL)
{
printf("failed to install aes key\n");
return DEV_PTR_NULL;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_SYNC, SRAM)))
{
printf("failed to install sync payload\n");
return DEV_PTR_NULL;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_AES_SW, SRAM)))
{
printf("failed to install aes payload\n");
return DEV_PTR_NULL;
}
resp = execute_payload(dev, PAYLOAD_SYNC, 0, 0);
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to execute sync payload\n");
free_dev_cmd_resp(resp);
return DEV_PTR_NULL;
}
free_dev_cmd_resp(resp);
addr_async_buf = setup_payload_async(dev, PAYLOAD_AES_SW,
sizeof(struct aes_sw_bernstein_data),
7, addr_data, 16, addr_key,
ptrs->addr_sbox, ptrs->addr_rc, ptrs->addr_mul2, ptrs->addr_mul3);
run_payload_async(dev, PAYLOAD_AES_SW);
if(IS_CHECKM8_FAIL(close_device_session(dev)))
{
printf("failed to close device session\n");
return DEV_PTR_NULL;
}
free(ptrs);
return addr_async_buf;
}
void usb_task_exit(struct pwned_device *dev)
{
struct dev_cmd_resp *resp;
if(IS_CHECKM8_FAIL(open_device_session(dev)))
{
printf("failed to open device session\n");
return;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_SYNC, SRAM)))
{
printf("failed to install sync payload\n");
return;
}
if(IS_CHECKM8_FAIL(install_payload(dev, PAYLOAD_EXIT_USB_TASK, SRAM)))
{
printf("failed to install sync payload\n");
return;
}
resp = execute_payload(dev, PAYLOAD_SYNC, 0, 0);
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to execute bootstrap\n");
return;
}
free_dev_cmd_resp(resp);
if(IS_CHECKM8_FAIL(uninstall_payload(dev, PAYLOAD_SYNC)))
{
printf("failed to uninstall sync payload\n");
return;
}
resp = execute_payload(dev, PAYLOAD_EXIT_USB_TASK, 0,
1, get_payload_address(dev, PAYLOAD_EXIT_USB_TASK));
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to exit usb task\n");
return;
}
if(IS_CHECKM8_FAIL(close_device_session(dev)))
{
printf("failed to close device session\n");
return;
}
}
int main()
{
struct dev_cmd_resp *resp;
struct aes_sw_bernstein_data data;
struct pwned_device *dev = exploit_device();
DEV_PTR_T addr_async_buf;
int j, b;
double u[16][256];
double udev[16][256];
@@ -502,6 +57,50 @@ int main()
FILE *outfile;
char linebuf[256];
printf("have count %lli k\n", data->count / 16 / 100000);
taverage = data->ttotal / (double) data->count;
for(j = 0; j < 16; j++)
{
for(b = 0; b < 256; b++)
{
u[j][b] = data->t[j][b] / data->tnum[j][b];
udev[j][b] = data->tsq[j][b] / data->tnum[j][b];
udev[j][b] -= u[j][b] * u[j][b];
udev[j][b] = sqrt(udev[j][b]);
}
}
sprintf(linebuf, "dat_%lli.dat", data->count / 16 / 100000);
outfile = fopen(linebuf, "w+");
if(outfile == NULL)
{
printf("failed to open data file\n");
return;
}
for(j = 0; j < 16; j++)
{
for(b = 0; b < 256; b++)
{
sprintf(linebuf,
"%2d %3d %lli %f %f %f %f\n",
j, b, (long long) data->tnum[j][b],
u[j][b], udev[j][b],
u[j][b] - taverage, udev[j][b] / sqrt(data->tnum[j][b]));
fputs(linebuf, outfile);
}
}
fclose(outfile);
}
int main()
{
DEV_PTR_T addr_async_buf;
struct bern_data *data;
struct pwned_device *dev = exploit_device();
if(dev == NULL || dev->status == DEV_NORMAL)
{
printf("Failed to exploit device\n");
@@ -511,7 +110,7 @@ int main()
fix_heap(dev);
demote_device(dev);
addr_async_buf = aes_sw_bernstein(dev);
addr_async_buf = setup_bern_exp(dev);
printf("got async buf ptr %llx\n", addr_async_buf);
if(addr_async_buf == DEV_PTR_NULL)
{
@@ -520,91 +119,11 @@ int main()
while(1)
{
for(j = 0; j < 30; j++)
{
printf("waiting for minute %i out of 30\n", j);
sleep(60);
}
sleep(60);
if(IS_CHECKM8_FAIL(open_device_session(dev)))
{
printf("failed to open device session");
return -1;
}
resp = execute_gadget(dev, ADDR_EVENT_NOTIFY, 0, 1,
addr_async_buf + offsetof(struct aes_sw_bernstein_data, ev_data));
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to signal for data\n");
free_dev_cmd_resp(resp);
return -1;
}
free_dev_cmd_resp(resp);
resp = read_gadget(dev, addr_async_buf, sizeof(struct aes_sw_bernstein_data));
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to get data from device\n");
free_dev_cmd_resp(resp);
return -1;
}
memcpy(&data, resp->data, sizeof(struct aes_sw_bernstein_data));
free_dev_cmd_resp(resp);
resp = execute_gadget(dev, ADDR_EVENT_NOTIFY, 0, 1,
addr_async_buf + offsetof(struct aes_sw_bernstein_data, ev_done));
if(IS_CHECKM8_FAIL(resp->ret))
{
printf("failed to signal data end\n");
free_dev_cmd_resp(resp);
return -1;
}
free_dev_cmd_resp(resp);
if(IS_CHECKM8_FAIL(close_device_session(dev)))
{
printf("failed to close device session\n");
return -1;
}
printf("have count %lli k\n", data.count / 16 / 100000);
taverage = data.ttotal / (double) data.count;
for(j = 0; j < 16; j++)
{
for(b = 0; b < 256; b++)
{
u[j][b] = data.t[j][b] / data.tnum[j][b];
udev[j][b] = data.tsq[j][b] / data.tnum[j][b];
udev[j][b] -= u[j][b] * u[j][b];
udev[j][b] = sqrt(udev[j][b]);
}
}
sprintf(linebuf, "dat_%lli.dat", data.count / 16 / 100000);
outfile = fopen(linebuf, "w+");
if(outfile == NULL)
{
printf("failed to open data file\n");
return -1;
}
for(j = 0; j < 16; j++)
{
for(b = 0; b < 256; b++)
{
sprintf(linebuf,
"%2d %3d %lli %f %f %f %f\n",
j, b, (long long) data.tnum[j][b],
u[j][b], udev[j][b],
u[j][b] - taverage, udev[j][b] / sqrt(data.tnum[j][b]));
fputs(linebuf, outfile);
}
}
fclose(outfile);
data = get_bern_exp_data(dev, addr_async_buf);
record_bern_data(data);
free(data);
}
free_device(dev);

2
c8_remote/src/payload.c
View File

@@ -505,7 +505,7 @@ DEV_PTR_T install_data(struct pwned_device *dev, LOCATION_T loc, unsigned char *
struct dev_cmd_resp *resp;
DEV_PTR_T addr = get_address(dev, loc, len);
if(addr == -1)
if(addr == DEV_PTR_NULL)
{
checkm8_debug_indent("\tfailed to get an address\n");
return DEV_PTR_NULL;