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Diffstat (limited to 'sw/modexp_tester.c')
-rw-r--r--sw/modexp_tester.c120
1 files changed, 74 insertions, 46 deletions
diff --git a/sw/modexp_tester.c b/sw/modexp_tester.c
index e07f147..de6168d 100644
--- a/sw/modexp_tester.c
+++ b/sw/modexp_tester.c
@@ -121,13 +121,13 @@ 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) +
+ j = ((i * 4 + 3) << 24) + ((i * 4 + 2) << 16) +
((i * 4 + 1) << 8) + i * 4;
tc_w32(MODEXP_MODULUS_DATA, j);
}
@@ -153,13 +153,13 @@ 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) +
+ j = ((i * 4 + 3) << 24) + ((i * 4 + 2) << 16) +
((i * 4 + 1) << 8) + i * 4;
tc_w32(MODEXP_EXPONENT_DATA, j);
}
@@ -186,13 +186,13 @@ 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) +
+ j = ((i * 4 + 3) << 24) + ((i * 4 + 2) << 16) +
((i * 4 + 1) << 8) + i * 4;
tc_w32(MODEXP_MESSAGE_DATA, j);
}
@@ -226,7 +226,7 @@ static void clear_mems()
tc_w32(MODEXP_EXPONENT_DATA, 0x00000000);
tc_w32(MODEXP_MODULUS_DATA, 0x00000000);
}
-
+
tc_w32(MODEXP_MESSAGE_PTR_RST, 0x00000000);
tc_w32(MODEXP_EXPONENT_PTR_RST, 0x00000000);
tc_w32(MODEXP_MODULUS_PTR_RST, 0x00000000);
@@ -263,7 +263,7 @@ static void dump_mems()
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);
@@ -272,6 +272,48 @@ static void dump_mems()
//------------------------------------------------------------------
+// testrunner()
+//------------------------------------------------------------------
+uint8_t testrunner(uint32_t exp_len, uint32_t *exponent,
+ uint32_t mod_len, uint32_t *modulus,
+ uint32_t *message, uint32_t *expected)
+{
+ uint32_t i;
+ uint32_t result;
+ uint8_t correct;
+
+ tc_w32(MODEXP_EXPONENT_LENGTH, exp_len);
+ tc_w32(MODEXP_EXPONENT_PTR_RST, 0x00000000);
+ for (i = 0 ; i < mod_len ; i++) {
+ tc_w32(MODEXP_EXPONENT_DATA, exponent[i]);
+ }
+
+ tc_w32(MODEXP_MODULUS_LENGTH, mod_len);
+ tc_w32(MODEXP_MESSAGE_PTR_RST, 0x00000000);
+ tc_w32(MODEXP_MODULUS_PTR_RST, 0x00000000);
+ for (i = 0 ; i < mod_len ; i++) {
+ tc_w32(MODEXP_MESSAGE_DATA, message[i]);
+ tc_w32(MODEXP_MODULUS_DATA, modulus[i]);
+ }
+
+ tc_w32(MODEXP_ADDR_CTRL, 0x00000001);
+ check(tc_wait_ready(MODEXP_ADDR_STATUS));
+
+ correct = 1;
+
+ for (i = 0 ; i < mod_len ; i++) {
+ result = tc_r32(MODEXP_RESULT_DATA);
+ if (result != expected[i]) {
+ printf("TC1: Error. Expected 0x00000009, got 0x%08x\n", result);
+ correct = 0;
+ }
+ }
+
+ return correct;
+}
+
+
+//------------------------------------------------------------------
// tc1()
//
// c = m ** e % N with the following (decimal) test values:
@@ -282,34 +324,20 @@ static void dump_mems()
//------------------------------------------------------------------
static void tc1()
{
- uint32_t result;
+ uint32_t exponent[1] = {0x00000007};
+ uint32_t modulus[1] = {0x0000000b};
+ uint32_t message[1] = {0x00000003};
+ uint32_t expected[1] = {0x00000009};
+ uint8_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));
-
- // Check result with expected value.
- tc_w32(MODEXP_RESULT_PTR_RST, 0x00000000);
- result = tc_r32(MODEXP_RESULT_DATA);
- if (result == 0x00000009)
+ result = testrunner(1, &exponent[0], 1, &modulus[0],
+ &message[0], &expected[0]);
+ if (result)
printf("TC1: OK\n");
else
- printf("TC1: Error. Expected 0x00000009, got 0x%08x\n", result);
+ printf("TC1: NOT OK\n");
}
@@ -333,23 +361,23 @@ static void tc2()
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);
-
+
// 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");
-
+
// Check result with expected value.
tc_w32(MODEXP_RESULT_PTR_RST, 0x00000000);
result = tc_r32(MODEXP_RESULT_DATA);
@@ -379,19 +407,19 @@ static void tc3()
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));
-
+
// Check result with expected value.
tc_w32(MODEXP_RESULT_PTR_RST, 0x00000000);
result = tc_r32(MODEXP_RESULT_DATA);
@@ -425,7 +453,7 @@ static void tc4()
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);
@@ -435,7 +463,7 @@ static void tc4()
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);
@@ -449,7 +477,7 @@ static void tc4()
if ((result0 == 0x00000000) && (result1 == 0x7761ed4f))
printf("TC4: OK\n");
else
- printf("TC4: Error. Expected 0x000000007761ed4f, got 0x%08x%08x\n",
+ printf("TC4: Error. Expected 0x000000007761ed4f, got 0x%08x%08x\n",
result0, result1);
}
@@ -471,13 +499,13 @@ static void tc5()
tc_w32(MODEXP_MESSAGE_DATA, 0x12caa2d5);
tc_w32(MODEXP_MESSAGE_DATA, 0xb80e1c66);
tc_w32(MODEXP_MESSAGE_DATA, 0x1006807f);
-
+
tc_w32(MODEXP_EXPONENT_PTR_RST, 0x00000000);
tc_w32(MODEXP_EXPONENT_DATA, 0x3285c343);
tc_w32(MODEXP_EXPONENT_DATA, 0x2acbcb0f);
tc_w32(MODEXP_EXPONENT_DATA, 0x4d023228);
tc_w32(MODEXP_EXPONENT_DATA, 0x2ecc73db);
-
+
tc_w32(MODEXP_MODULUS_PTR_RST, 0x00000000);
tc_w32(MODEXP_MODULUS_DATA, 0x267d2f2e);
tc_w32(MODEXP_MODULUS_DATA, 0x51c216a7);
@@ -486,7 +514,7 @@ static void tc5()
tc_w32(MODEXP_EXPONENT_LENGTH, 0x00000004);
tc_w32(MODEXP_MODULUS_LENGTH, 0x00000004);
-
+
// Start processing and wait for ready.
tc_w32(MODEXP_ADDR_CTRL, 0x00000001);
check(tc_wait_ready(MODEXP_ADDR_STATUS));
@@ -501,7 +529,7 @@ static void tc5()
(result2 == 0x7425a8d8) && (result3 == 0xa066ca56))
printf("TC5: OK\n");
else
- printf("TC5: Error. Expected 0x0ddc404d 0x91600596 0x7425a8d8 0xa066ca56, got 0x%08x %08x0x %08x %08x\n",
+ printf("TC5: Error. Expected 0x0ddc404d 0x91600596 0x7425a8d8 0xa066ca56, got 0x%08x %08x0x %08x %08x\n",
result0, result1, result2, result3);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 10:56:45 +0000