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Add a test for public variants of bn2bin()

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We test with binary input of length 1, length 0, and NULL input with length 0

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20033)
This commit is contained in:
Richard Levitte 2023-01-12 11:10:01 +01:00 committed by Hugo Landau
parent 1b24b5a1b4
commit 15192335c8
1 changed files with 31 additions and 0 deletions
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31
test/bntest.c
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@ -2219,6 +2219,36 @@ static int test_mpi(int i)
return st;
}
static int test_bin2zero(void)
{
unsigned char input[] = { 0 };
BIGNUM *zbn = NULL;
int ret = 0;
if (!TEST_ptr(zbn = BN_new()))
goto err;
#define zerotest(fn) \
if (!TEST_ptr(fn(input, 1, zbn)) \
|| !TEST_true(BN_is_zero(zbn)) \
|| !TEST_ptr(fn(input, 0, zbn)) \
|| !TEST_true(BN_is_zero(zbn)) \
|| !TEST_ptr(fn(NULL, 0, zbn)) \
|| !TEST_true(BN_is_zero(zbn))) \
goto err
zerotest(BN_bin2bn);
zerotest(BN_signed_bin2bn);
zerotest(BN_lebin2bn);
zerotest(BN_signed_lebin2bn);
#undef zerotest
ret = 1;
err:
BN_free(zbn);
return ret;
}
static int test_rand(void)
{
BIGNUM *bn = NULL;
@ -3213,6 +3243,7 @@ int setup_tests(void)
ADD_TEST(test_dec2bn);
ADD_TEST(test_hex2bn);
ADD_TEST(test_asc2bn);
ADD_TEST(test_bin2zero);
ADD_ALL_TESTS(test_mpi, (int)OSSL_NELEM(kMPITests));
ADD_ALL_TESTS(test_bn2signed, (int)OSSL_NELEM(kSignedTests_BE));
ADD_TEST(test_negzero);