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authorTomas Mraz <tomas@openssl.org>2022-02-28 18:26:35 +0100
committerMatt Caswell <matt@openssl.org>2022-03-15 13:35:56 +0000
commitaf9ca22dee50cc30e89bd2817340d00e2a174fc9 (patch)
tree6a69725f85c934f982869747adfe4e85ecbb80ba
parente73bcbd4748213aeb2e0be1b05a81bee6b24e20d (diff)
Add a negative testcase for BN_mod_sqrt
Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> (cherry picked from commit 3469282ed2faee747868150089e07a187891b5ee)
-rw-r--r--test/bntest.c11
-rw-r--r--test/recipes/10-test_bn_data/bnmod.txt12
2 files changed, 22 insertions, 1 deletions
diff --git a/test/bntest.c b/test/bntest.c
index 86b8bb1911..63e003979e 100644
--- a/test/bntest.c
+++ b/test/bntest.c
@@ -1732,8 +1732,17 @@ static int file_modsqrt(STANZA *s)
|| !TEST_ptr(ret2 = BN_new()))
goto err;
+ if (BN_is_negative(mod_sqrt)) {
+ /* A negative testcase */
+ if (!TEST_ptr_null(BN_mod_sqrt(ret, a, p, ctx)))
+ goto err;
+
+ st = 1;
+ goto err;
+ }
+
/* There are two possible answers. */
- if (!TEST_true(BN_mod_sqrt(ret, a, p, ctx))
+ if (!TEST_ptr(BN_mod_sqrt(ret, a, p, ctx))
|| !TEST_true(BN_sub(ret2, p, ret)))
goto err;
diff --git a/test/recipes/10-test_bn_data/bnmod.txt b/test/recipes/10-test_bn_data/bnmod.txt
index e22d656091..bc8a434ea5 100644
--- a/test/recipes/10-test_bn_data/bnmod.txt
+++ b/test/recipes/10-test_bn_data/bnmod.txt
@@ -2799,3 +2799,15 @@ P = 9df9d6cc20b8540411af4e5357ef2b0353cb1f2ab5ffc3e246b41c32f71e951f
ModSqrt = a1d52989f12f204d3d2167d9b1e6c8a6174c0c786a979a5952383b7b8bd186
A = 2eee37cf06228a387788188e650bc6d8a2ff402931443f69156a29155eca07dcb45f3aac238d92943c0c25c896098716baa433f25bd696a142f5a69d5d937e81
P = 9df9d6cc20b8540411af4e5357ef2b0353cb1f2ab5ffc3e246b41c32f71e951f
+
+# Negative testcases for BN_mod_sqrt()
+
+# This one triggers an infinite loop with unfixed implementation
+# It should just fail.
+ModSqrt = -1
+A = 20a7ee
+P = 460201
+
+ModSqrt = -1
+A = 65bebdb00a96fc814ec44b81f98b59fba3c30203928fa5214c51e0a97091645280c947b005847f239758482b9bfc45b066fde340d1fe32fc9c1bf02e1b2d0ed
+P = 9df9d6cc20b8540411af4e5357ef2b0353cb1f2ab5ffc3e246b41c32f71e951f