Replicate files from enterprise repo

chipwhisperer/elmo-aes/MBedAES.ld

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+/*
+* University of Bristol – Open Access Software Licence
+* Copyright (c) 2016, The University of Bristol, a chartered
+* corporation having Royal Charter number RC000648 and a charity
+* (number X1121) and its place of administration being at Senate
+* House, Tyndall Avenue, Bristol, BS8 1TH, United Kingdom.
+* All rights reserved
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* 1. Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+*
+* 2. Redistributions in binary form must reproduce the above
+* copyright notice, this list of conditions and the following
+* disclaimer in the documentation and/or other materials provided
+* with the distribution.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+* OF THE POSSIBILITY OF SUCH DAMAGE.
+*
+* Any use of the software for scientific publications or commercial
+* purposes should be reported to the University of Bristol
+* (OSI-notifications@bristol.ac.uk and quote reference 2668). This is
+* for impact and usage monitoring purposes only.
+*
+* Enquiries about further applications and development opportunities
+* are welcome. Please contact elisabeth.oswald@bristol.ac.uk
+*/
+/*
+ * This file was based on files that are part of the libopencm3 project.
+ * See below for licecning information.
+ *
+ * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+ * Copyright (C) 2011 Stephen Caudle <scaudle@doceme.com>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* Linker script for ST STM32F0DISCOVERY (STM32F051R8T6, 64K flash, 8K RAM). */
+
+/* Define memory regions. */
+MEMORY
+{
+	rom (rx) : ORIGIN = 0x08000000, LENGTH = 64K
+	ram (rwx) : ORIGIN = 0x20000000, LENGTH = 8K
+}
+
+/* Generic linker script for STM32 targets using libopencm3. */
+
+/* Memory regions must be defined in the ld script which includes this one. */
+
+/* Enforce emmition of the vector table. */
+EXTERN (vector_table)
+
+/* Define the entry point of the output file. */
+ENTRY(reset_handler)
+
+/* Define sections. */
+SECTIONS
+{
+	.text : {
+		*(.vectors)	/* Vector table */
+		*(.text*)	/* Program code */
+		. = ALIGN(4);
+		*(.rodata*)	/* Read-only data */
+		. = ALIGN(4);
+	} >rom
+
+	/* C++ Static constructors/destructors, also used for __attribute__
+	 * ((constructor)) and the likes */
+	.preinit_array : {
+		. = ALIGN(4);
+		__preinit_array_start = .;
+		KEEP (*(.preinit_array))
+		__preinit_array_end = .;
+	} >rom
+	.init_array : {
+		. = ALIGN(4);
+		__init_array_start = .;
+		KEEP (*(SORT(.init_array.*)))
+		KEEP (*(.init_array))
+		__init_array_end = .;
+	} >rom
+	.fini_array : {
+		. = ALIGN(4);
+		__fini_array_start = .;
+		KEEP (*(.fini_array))
+		KEEP (*(SORT(.fini_array.*)))
+		__fini_array_end = .;
+	} >rom
+
+	/*
+	 * Another section used by C++ stuff, appears when using newlib with
+	 * 64bit (long long) printf support
+	 */
+	.ARM.extab : {
+		*(.ARM.extab*)
+	} >rom
+	.ARM.exidx : {
+		__exidx_start = .;
+		*(.ARM.exidx*)
+		__exidx_end = .;
+	} >rom
+
+	. = ALIGN(4);
+	_etext = .;
+
+	.data : {
+		_data = .;
+		*(.data*)	/* Read-write initialized data */
+		. = ALIGN(4);
+		_edata = .;
+	} >ram AT >rom
+	_data_loadaddr = LOADADDR(.data);
+
+	.bss : {
+		*(.bss*)	/* Read-write zero initialized data */
+		*(COMMON)
+		. = ALIGN(4);
+		_ebss = .;
+	} >ram
+
+	/*
+	 * The .eh_frame section appears to be used for C++ exception handling.
+	 * You may need to fix this if you're using C++.
+	 */
+	/DISCARD/ : { *(.eh_frame) }
+
+	. = ALIGN(4);
+	end = .;
+}
+
+PROVIDE(_stack = ORIGIN(ram) + LENGTH(ram));
+

chipwhisperer/elmo-aes/basic-passwdcheck.c

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+/*
+    This file is part of the ChipWhisperer Example Targets
+    Copyright (C) 2012-2015 NewAE Technology Inc.
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "hal.h"
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#define IDLE 0
+#define KEY 1
+#define PLAIN 2
+
+#define BUFLEN 64
+
+uint8_t memory[BUFLEN];
+uint8_t tmp[BUFLEN];
+char asciibuf[BUFLEN];
+uint8_t pt[16];
+
+static void delay_2_ms(void);
+
+
+void my_puts(char *c)
+{
+  do {
+    putch(*c);
+
+  } while (*++c);
+}
+
+static void delay_2_ms()
+{
+  for (volatile unsigned int i=0; i < 0xfff; i++ ){
+    ;
+  }
+}
+
+void my_read(char *buf, int len)
+{
+  for(int i = 0; i < len; i++) {
+    while (buf[i] = getch(), buf[i] == '\0');
+
+    if (buf[i] == '\n') {
+      buf[i] = '\0';
+      return;
+    }
+  }
+  buf[len - 1] = '\0';
+}
+
+int main(void)
+  {
+    platform_init();
+  init_uart();
+  trigger_setup();
+
+    char passwd[32];
+    char correct_passwd[] = "h0px3";
+
+  while(1){
+
+        my_puts("*****Safe-o-matic 3000 Booting...\n");
+        //Print some fancy-sounding stuff so that attackers
+        //will get scared and leave us alone
+        my_puts("Aligning bits........[DONE]\n");
+        delay_2_ms();
+        my_puts("Checking Cesium RNG..[DONE]\n");
+        delay_2_ms();
+        my_puts("Masquerading flash...[DONE]\n");
+        delay_2_ms();
+        my_puts("Decrypting database..[DONE]\n");
+        delay_2_ms();
+        my_puts("\n\n");
+
+        //Give them one last warning
+        my_puts("WARNING: UNAUTHORIZED ACCESS WILL BE PUNISHED\n");
+
+        trigger_low();
+
+        //Get password
+        my_puts("Please enter password to continue: ");
+        my_read(passwd, 32);
+
+        uint8_t passbad = 0;
+
+        trigger_high();
+
+        for(uint8_t i = 0; i < sizeof(correct_passwd); i++){
+            if (correct_passwd[i] != passwd[i]){
+                passbad = 1;
+                break;
+            }
+        }
+
+        if (passbad){
+            //Stop them fancy timing attacks
+             int wait = rand() % 100000; //% 100000 can be removed for xmega
+            for(volatile int i = 0; i < wait; i++){
+                ;
+            }
+            delay_2_ms();
+            delay_2_ms();
+            my_puts("PASSWORD FAIL\n");
+            led_error(1);
+        } else {
+            my_puts("Access granted, Welcome!\n");
+            led_ok(1);
+        }
+
+        //All done;
+        while(1);
+  }
+
+  return 1;
+  }
+
+

chipwhisperer/elmo-aes/build.json

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+{
+    "_comment": "shiftrows.c",
+    "c_tmpl_files":
+    [
+        "simple.c"
+    ],
+    "c_files" :
+    [
+        "main.c", "byte_mask_aes.c", "random.c", "rosita_vars.c"
+    ],
+    "asm_files" :
+    [
+
+    ],
+    "cxx_files" :
+    [
+
+    ],
+    "obj_files" :
+    [
+        "vector.o", "elmoasmfunctions.o"
+    ],
+    "reserve_register" : "r7",
+    "reserve_register_in_files" :
+    [
+    ],
+    "reserve_register_cflags" : "-ffixed-r7",
+    "cflags" : " -g -Os -Wextra -Wshadow -Wimplicit-function-declaration -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes -fno-common -ffunction-sections -fdata-sections -MD -Wall -Wundef -mthumb -mcpu=cortex-m0 -msoft-float -masm-syntax-unified -ffixed-r7 -c $file",
+    "reserve_register_cxxflags" : "-ffixed-r7",
+    "cxxflags" : "",
+    "ldflags" : "--static -nostartfiles -TMBedAES.ld -Wl,-Map=.map -Wl,--gc-sections -mthumb -mcpu=cortex-m0 -msoft-float $files -Wl,--start-group -lc -lgcc -lnosys -Wl,--end-group"
+}