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authorPavel V. Shatov (Meister) <meisterpaul1@yandex.ru>2018-04-17 14:48:03 +0300
committerPavel V. Shatov (Meister) <meisterpaul1@yandex.ru>2018-04-17 14:48:03 +0300
commitbbca08857a55439eae903b891fcc7de5ebea61a7 (patch)
treebe3dacb36724e6ee1f6ab5ec1f848d792b3a4f94
parent53014b4a47adcd959640c3934d4e503021f6c21c (diff)
Modified the test program to verify that changes in Verilog do work.fix
-rw-r--r--stm32_driver/ecdsa256_driver_sample.c30
1 files changed, 15 insertions, 15 deletions
diff --git a/stm32_driver/ecdsa256_driver_sample.c b/stm32_driver/ecdsa256_driver_sample.c
index fcfd3ae..1950491 100644
--- a/stm32_driver/ecdsa256_driver_sample.c
+++ b/stm32_driver/ecdsa256_driver_sample.c
@@ -122,22 +122,22 @@ int main()
ok = ok && test_p256_multiplier(p256_n, p256_z, p256_z); /* O = n * G */
- ok = ok && test_p256_multiplier(p256_n1, p256_gx, p256_gy); /* G = (n + 1) * G */
+ ok = ok && test_p256_multiplier(p256_n1, p256_gx, p256_gy); /* G = (n + 1) * G */
- //
- // The following two vectors test the virtually never taken path in the curve point
- // addition routine when both input points are the same. During the first test (2 * G)
- // the double of the base point is computed at the second doubling step of the multiplication
- // algorithm, which does not require any special handling. During the second test the
- // precomputed double of the base point (stored in internal read-only memory) is returned,
- // because after doubling of G * ((n + 1) / 2) we get G * (n + 1) = G. The adder then has to
- // compute G + G for which the formulae don't work, and special handling is required. The two
- // test vectors verify that the hardcoded double of the base point matches the one computed
- // on the fly. Note that in practice one should never be multiplying by anything larger than (n-1),
- // because both the secret key and the per-message (random) number must be from [1, n-1].
- //
- ok = ok && test_p256_multiplier(p256_2, p256_hx, p256_hy); /* H = 2 * G */
- ok = ok && test_p256_multiplier(p256_n2, p256_hx, p256_hy); /* H = (n + 2) * G */
+ //
+ // The following two vectors test the virtually never taken path in the curve point
+ // addition routine when both input points are the same. During the first test (2 * G)
+ // the double of the base point is computed at the second doubling step of the multiplication
+ // algorithm, which does not require any special handling. During the second test the
+ // precomputed double of the base point (stored in internal read-only memory) is returned,
+ // because after doubling of G * ((n + 1) / 2) we get G * (n + 1) = G. The adder then has to
+ // compute G + G for which the formulae don't work, and special handling is required. The two
+ // test vectors verify that the hardcoded double of the base point matches the one computed
+ // on the fly. Note that in practice one should never be multiplying by anything larger than (n-1),
+ // because both the secret key and the per-message (random) number must be from [1, n-1].
+ //
+ ok = ok && test_p256_multiplier(p256_2, p256_hx, p256_hy); /* H = 2 * G */
+ ok = ok && test_p256_multiplier(p256_n2, p256_hx, p256_hy); /* H = (n + 2) * G */
if (!ok) {
led_off(LED_GREEN);