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authorJoachim StroĢˆmbergson <joachim@secworks.se>2015-05-19 18:24:08 +0200
committerJoachim StroĢˆmbergson <joachim@secworks.se>2015-05-19 18:24:08 +0200
commit021c35cc6fa778f83c890fc206808141c69fcb2d (patch)
tree99aaf457f1b9d3da3e9e8f4e0b91a7bc0aafcc68 /sw
parentd6ff18eac146c5a933eb7aadb034624d1ef54dc5 (diff)
Adding a new test program for the modexp core. Adding build target for modexp_tester.
Diffstat (limited to 'sw')
-rwxr-xr-xsw/Makefile5
-rw-r--r--sw/modexp_tester.c450
2 files changed, 454 insertions, 1 deletions
diff --git a/sw/Makefile b/sw/Makefile
index 0e24e7b..ba07ffd 100755
--- a/sw/Makefile
+++ b/sw/Makefile
@@ -2,7 +2,7 @@ CC = gcc
CFLAGS = -Wall -fPIC
LIB = libcryptech.a
-BIN = hash hash_tester trng_extractor trng_tester aes_tester
+BIN = hash hash_tester trng_extractor trng_tester trivial aestest aes_tester modexp_tester
INC = cryptech.h
PREFIX = /usr/local
@@ -27,6 +27,9 @@ trng_tester: trng_tester.o $(LIB)
aes_tester: aes_tester.o $(LIB)
$(CC) -o $@ $^
+modexp_tester: modexp_tester.o $(LIB)
+ $(CC) -o $@ $^
+
hash: hash.o $(LIB)
$(CC) -o $@ $^
diff --git a/sw/modexp_tester.c b/sw/modexp_tester.c
new file mode 100644
index 0000000..95a6513
--- /dev/null
+++ b/sw/modexp_tester.c
@@ -0,0 +1,450 @@
+//======================================================================
+//
+// modexp_tester.c
+// ---------------
+// Simple test sw for the modexp.
+//
+//
+// Author: Joachim Strombergson, Rob Austein,
+// Copyright (c) 2014-2015, NORDUnet A/S All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+// - Redistributions of source code must retain the above copyright notice,
+// this list of conditions and the following disclaimer.
+//
+// - 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.
+//
+// - Neither the name of the NORDUnet nor the names of its contributors may
+// be used to endorse or promote products derived from this software
+// without specific prior written permission.
+//
+// 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.
+//
+//
+//======================================================================
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+#include "cryptech.h"
+
+
+//------------------------------------------------------------------
+// Global defines.
+//------------------------------------------------------------------
+#define VERBOSE 0
+#define CHECK_WRITE 0
+
+
+//------------------------------------------------------------------
+// Robs macros. Scary scary.
+//------------------------------------------------------------------
+#define check(_expr_) \
+ do { \
+ if ((_expr_) != 0) { \
+ printf("%s failed\n", #_expr_); \
+ exit(1); \
+ } \
+ } while (0)
+
+
+//------------------------------------------------------------------
+// tc_w32()
+//
+// Write 32-bit word to given address.
+//------------------------------------------------------------------
+static void tc_w32(const off_t addr, const uint32_t data)
+{
+ uint8_t w[4];
+ w[0] = data >> 24 & 0xff;
+ w[1] = data >> 16 & 0xff;
+ w[2] = data >> 8 & 0xff;
+ w[3] = data & 0xff;
+ check(tc_write(addr, w, 4));
+}
+
+
+//------------------------------------------------------------------
+// tc_r32
+//
+// Read 32-bit word from given address.
+//------------------------------------------------------------------
+static uint32_t tc_r32(const off_t addr)
+{
+ uint8_t w[4];
+ check(tc_read(addr, w, 4));
+ return (uint32_t)((w[0] << 24) + (w[1] << 16) + (w[2] << 8) + w[3]);
+}
+
+
+//------------------------------------------------------------------
+// check_modexp_access
+//
+// Check that we can read from the modexp core by trying to
+// read out the name and version.
+//------------------------------------------------------------------
+static void check_modexp_access(void)
+{
+ uint8_t name0[4], name1[4], version[4];
+
+ printf("Trying to read the modexp core name\n");
+
+ check(tc_read(MODEXP_ADDR_NAME0, name0, sizeof(name0)));
+ check(tc_read(MODEXP_ADDR_NAME1, name1, sizeof(name1)));
+ check(tc_read(MODEXP_ADDR_VERSION, version, sizeof(version)));
+ printf("%4.4s%4.4s %4.4s\n\n", name0, name1, version);
+}
+
+
+//------------------------------------------------------------------
+// check_modulus_mem()
+//
+// Check that we can write and read to the modulus memory.
+//------------------------------------------------------------------
+static void check_modulus_mem(void)
+{
+ uint8_t i;
+ uint32_t j;
+
+ printf("Testing modulus mem access.\n");
+
+ tc_w32(MODEXP_MODULUS_PTR_RST, 0x00000000);
+ // Write test data to modulus mempory.
+ for (i = 0 ; i < 64; i = i + 1) {
+ j = ((i * 4 + 3) << 24) + ((i * 4 + 2) << 16) +
+ ((i * 4 + 1) << 8) + i * 4;
+ tc_w32(MODEXP_MODULUS_DATA, j);
+ }
+
+ tc_w32(MODEXP_MODULUS_PTR_RST, 0x00000000);
+ // Read out test data from modulus mempory.
+ for (i = 0 ; i < 64 ; i = i + 4) {
+ printf("modulus med: 0x%08x 0x%08x 0x%08x 0x%08x\n",
+ tc_r32(MODEXP_MODULUS_DATA),
+ tc_r32(MODEXP_MODULUS_DATA),
+ tc_r32(MODEXP_MODULUS_DATA),
+ tc_r32(MODEXP_MODULUS_DATA));
+ }
+}
+
+
+//------------------------------------------------------------------
+// check_exponent_mem()
+//
+// Check that we can write and read to the exponent memory.
+//------------------------------------------------------------------
+static void check_exponent_mem(void)
+{
+ uint8_t i;
+ uint32_t j;
+
+ printf("Testing exponent mem access.\n");
+
+ tc_w32(MODEXP_EXPONENT_PTR_RST, 0x00000000);
+ // Write test data to exponent memory.
+ for (i = 0 ; i < 64; i = i + 1) {
+ j = ((i * 4 + 3) << 24) + ((i * 4 + 2) << 16) +
+ ((i * 4 + 1) << 8) + i * 4;
+ tc_w32(MODEXP_EXPONENT_DATA, j);
+ }
+
+ tc_w32(MODEXP_EXPONENT_PTR_RST, 0x00000000);
+ // Read out test data from exponent memory.
+ for (i = 0 ; i < 64 ; i = i + 4) {
+ printf("exponent mem: 0x%08x 0x%08x 0x%08x 0x%08x\n",
+ tc_r32(MODEXP_EXPONENT_DATA),
+ tc_r32(MODEXP_EXPONENT_DATA),
+ tc_r32(MODEXP_EXPONENT_DATA),
+ tc_r32(MODEXP_EXPONENT_DATA));
+ }
+}
+
+
+
+//------------------------------------------------------------------
+// check_message_mem()
+//
+// Check that we can write and read to the message memory.
+//------------------------------------------------------------------
+static void check_message_mem(void)
+{
+ uint8_t i;
+ uint32_t j;
+
+ printf("Testing message mem access.\n");
+
+ tc_w32(MODEXP_MESSAGE_PTR_RST, 0x00000000);
+ // Write test data to message memory.
+ for (i = 0 ; i < 64; i = i + 1) {
+ j = ((i * 4 + 3) << 24) + ((i * 4 + 2) << 16) +
+ ((i * 4 + 1) << 8) + i * 4;
+ tc_w32(MODEXP_MESSAGE_DATA, j);
+ }
+
+ tc_w32(MODEXP_MESSAGE_PTR_RST, 0x00000000);
+ // Read out test data from messsage memory.
+ for (i = 0 ; i < 64 ; i = i + 4) {
+ printf("message mem: 0x%08x 0x%08x 0x%08x 0x%08x\n",
+ tc_r32(MODEXP_MESSAGE_DATA),
+ tc_r32(MODEXP_MESSAGE_DATA),
+ tc_r32(MODEXP_MESSAGE_DATA),
+ tc_r32(MODEXP_MESSAGE_DATA));
+ }
+}
+
+
+//------------------------------------------------------------------
+// tc1()
+//
+// c = m ** e % N with the following (decimal) test values:
+// m = 3
+// e = 7
+// n = 11
+// c = 3 ** 7 % 11 = 9
+//------------------------------------------------------------------
+static void tc1()
+{
+ uint32_t result;
+
+ printf("Running TC1: 0x03 ** 0x07 mod 0x0b = 0x09\n");
+
+ // Write operands and set associated lengths.
+ tc_w32(MODEXP_MESSAGE_PTR_RST, 0x00000000);
+ tc_w32(MODEXP_MESSAGE_DATA, 0x00000003);
+ tc_w32(MODEXP_LENGTH, 0x00000001);
+
+ tc_w32(MODEXP_EXPONENT_PTR_RST, 0x00000000);
+ tc_w32(MODEXP_EXPONENT_DATA, 0x00000007);
+ tc_w32(MODEXP_EXPONENT_LENGTH, 0x00000001);
+
+ tc_w32(MODEXP_MODULUS_PTR_RST, 0x00000000);
+ tc_w32(MODEXP_MODULUS_DATA, 0x0000000b);
+ tc_w32(MODEXP_MODULUS_LENGTH, 0x00000001);
+
+ // Start processing and wait for ready.
+ tc_w32(MODEXP_ADDR_CTRL, 0x00000001);
+ check(tc_wait_ready(MODEXP_ADDR_STATUS));
+
+ // Dump contents of result memory.
+ tc_w32(MODEXP_RESULT_PTR_RST, 0x00000000);
+ result = tc_r32(MODEXP_RESULT_DATA);
+ if (result == 0x00000009)
+ printf("TC1: OK\n");
+ else
+ printf("TC1: Error. Expected 0x00000009, got 0x%08x\n", result);
+}
+
+static void dump_mems()
+{
+ tc_w32(MODEXP_MESSAGE_PTR_RST, 0x00000000);
+ printf("First words in messagee mem:\n");
+ printf("0x%08x 0x%08x 0x%08x 0x%08x\n",
+ tc_r32(MODEXP_MESSAGE_DATA), tc_r32(MODEXP_MESSAGE_DATA),
+ tc_r32(MODEXP_MESSAGE_DATA), tc_r32(MODEXP_MESSAGE_DATA));
+
+ tc_w32(MODEXP_EXPONENT_PTR_RST, 0x00000000);
+ printf("First words in exponent mem:\n");
+ printf("0x%08x 0x%08x 0x%08x 0x%08x\n",
+ tc_r32(MODEXP_EXPONENT_DATA), tc_r32(MODEXP_EXPONENT_DATA),
+ tc_r32(MODEXP_EXPONENT_DATA), tc_r32(MODEXP_EXPONENT_DATA));
+
+ tc_w32(MODEXP_MODULUS_PTR_RST, 0x00000000);
+ printf("First words in modulus mem:\n");
+ printf("0x%08x 0x%08x 0x%08x 0x%08x\n",
+ tc_r32(MODEXP_MODULUS_DATA), tc_r32(MODEXP_MODULUS_DATA),
+ tc_r32(MODEXP_MODULUS_DATA), tc_r32(MODEXP_MODULUS_DATA));
+
+ tc_w32(MODEXP_RESULT_PTR_RST, 0x00000000);
+ printf("First words in result mem:\n");
+ printf("0x%08x 0x%08x 0x%08x 0x%08x\n",
+ tc_r32(MODEXP_RESULT_DATA), tc_r32(MODEXP_RESULT_DATA),
+ tc_r32(MODEXP_RESULT_DATA), tc_r32(MODEXP_RESULT_DATA));
+
+ tc_w32(MODEXP_MESSAGE_PTR_RST, 0x00000000);
+ tc_w32(MODEXP_EXPONENT_PTR_RST, 0x00000000);
+ tc_w32(MODEXP_MODULUS_PTR_RST, 0x00000000);
+ tc_w32(MODEXP_RESULT_PTR_RST, 0x00000000);
+}
+
+
+//------------------------------------------------------------------
+// tc2()
+//
+// c = m ** e % N with the following test values:
+// m = 251 (0xfb)
+// e = 251 (0xfb)
+// n = 257 (0x101)
+// c = 251 ** 251 % 257 = 183 (0xb7)
+//------------------------------------------------------------------
+static void tc2()
+{
+ uint32_t result;
+
+ printf("Running TC2: 0xfb ** 0xfb mod 0x101 = 0xb7\n");
+
+ // Write operands and set associated lengths.
+ tc_w32(MODEXP_MESSAGE_PTR_RST, 0x00000000);
+ tc_w32(MODEXP_MESSAGE_DATA, 0x000000fb);
+ tc_w32(MODEXP_MESSAGE_DATA, 0x00000000);
+ tc_w32(MODEXP_LENGTH, 0x00000001);
+
+ tc_w32(MODEXP_EXPONENT_PTR_RST, 0x00000000);
+ tc_w32(MODEXP_EXPONENT_DATA, 0x000000fb);
+ tc_w32(MODEXP_EXPONENT_DATA, 0x00000000);
+ tc_w32(MODEXP_EXPONENT_LENGTH, 0x00000001);
+
+ tc_w32(MODEXP_MODULUS_PTR_RST, 0x00000000);
+ tc_w32(MODEXP_MODULUS_DATA, 0x00000101);
+ tc_w32(MODEXP_MODULUS_DATA, 0x00000000);
+ tc_w32(MODEXP_MODULUS_LENGTH, 0x00000001);
+
+ dump_mems();
+
+ // Start processing and wait for ready.
+ printf("TC2: Starting processing. Waiting for ready...\n");
+ tc_w32(MODEXP_ADDR_CTRL, 0x00000001);
+ check(tc_wait_ready(MODEXP_ADDR_STATUS));
+ printf("TC2: Ready seen.\n");
+
+ dump_mems();
+
+ // Dump contents of result memory.
+ tc_w32(MODEXP_RESULT_PTR_RST, 0x00000000);
+ result = tc_r32(MODEXP_RESULT_DATA);
+ if (result == 0x000000b7)
+ printf("TC2: OK\n");
+ else
+ printf("TC2: Error. Expected 0x000000b7, got 0x%08x\n", result);
+}
+
+
+//------------------------------------------------------------------
+// tc3()
+//
+// c = m ** e % N with the following test values:
+// m = 0x81
+// e = 0x41
+// n = 0x87
+// c = 0x81 ** 0x41 % 0x87 = 0x36
+//------------------------------------------------------------------
+static void tc3()
+{
+ uint32_t result;
+
+ printf("Running TC3: 0x81 ** 0x41 mod 0x87 = 0x36\n");
+
+ // Write operands and set associated lengths.
+ tc_w32(MODEXP_MESSAGE_PTR_RST, 0x00000000);
+ tc_w32(MODEXP_MESSAGE_DATA, 0x00000081);
+ tc_w32(MODEXP_LENGTH, 0x00000001);
+
+ tc_w32(MODEXP_EXPONENT_PTR_RST, 0x00000000);
+ tc_w32(MODEXP_EXPONENT_DATA, 0x00000041);
+ tc_w32(MODEXP_EXPONENT_LENGTH, 0x00000001);
+
+ tc_w32(MODEXP_MODULUS_PTR_RST, 0x00000000);
+ tc_w32(MODEXP_MODULUS_DATA, 0x00000087);
+ tc_w32(MODEXP_MODULUS_LENGTH, 0x00000001);
+
+ // Start processing and wait for ready.
+ tc_w32(MODEXP_ADDR_CTRL, 0x00000001);
+ check(tc_wait_ready(MODEXP_ADDR_STATUS));
+
+ // Dump contents of result memory.
+ tc_w32(MODEXP_RESULT_PTR_RST, 0x00000000);
+ result = tc_r32(MODEXP_RESULT_DATA);
+ if (result == 0x00000036)
+ printf("TC3: OK\n");
+ else
+ printf("TC3: Error. Expected 0x00000036, got 0x%08x\n", result);
+}
+
+
+//------------------------------------------------------------------
+// tc4()
+//
+// c = m ** e % N with the following test values:
+// m = 251 (0xfb)
+// e = 251 (0xfb)
+// n = 257 (0x101)
+// c = 251 ** 251 % 257 = 183 (0xb7)
+//------------------------------------------------------------------
+static void tc4()
+{
+ uint32_t result0;
+ uint32_t result1;
+
+ printf("Running TC4: 0x00000001946473e1 ** 0xh000000010e85e74f mod 0000000170754797 = 0x000000007761ed4f\n");
+
+ // Write operands and set associated lengths.
+ tc_w32(MODEXP_MESSAGE_PTR_RST, 0x00000000);
+ tc_w32(MODEXP_MESSAGE_DATA, 0x00000001);
+ tc_w32(MODEXP_MESSAGE_DATA, 0x946473e1);
+ tc_w32(MODEXP_LENGTH, 0x00000002);
+
+ tc_w32(MODEXP_EXPONENT_PTR_RST, 0x00000000);
+ tc_w32(MODEXP_EXPONENT_DATA, 0x00000001);
+ tc_w32(MODEXP_EXPONENT_DATA, 0x0e85e74f);
+ tc_w32(MODEXP_EXPONENT_LENGTH, 0x00000002);
+
+ tc_w32(MODEXP_MODULUS_PTR_RST, 0x00000000);
+ tc_w32(MODEXP_MODULUS_DATA, 0x00000001);
+ tc_w32(MODEXP_MODULUS_DATA, 0x70754797);
+ tc_w32(MODEXP_MODULUS_LENGTH, 0x00000002);
+
+ // Start processing and wait for ready.
+ tc_w32(MODEXP_ADDR_CTRL, 0x00000001);
+ check(tc_wait_ready(MODEXP_ADDR_STATUS));
+
+ // Dump contents of result memory.
+ tc_w32(MODEXP_RESULT_PTR_RST, 0x00000000);
+ result0 = tc_r32(MODEXP_RESULT_DATA);
+ result1 = tc_r32(MODEXP_RESULT_DATA);
+ if ((result0 == 0x00000000) && (result1 == 0x7761ed4f))
+ printf("TC4: OK\n");
+ else
+ printf("TC4: Error. Expected 0x000000007761ed4f, got 0x%08x%08x\n",
+ result0, result1);
+}
+
+
+//------------------------------------------------------------------
+//------------------------------------------------------------------
+int main(int argc, char *argv[])
+{
+ check_modexp_access();
+
+ tc_set_debug(1);
+
+// check_modulus_mem();
+// check_exponent_mem();
+// check_message_mem();
+
+// tc1();
+// tc2();
+ tc3();
+// tc4();
+
+ return 0;
+}
+
+//======================================================================
+// EOF aes_tester.c
+//======================================================================