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TEST: Check that i2d refuses to encode non-optional items with no content

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The test case creates an RSA public key and tries to pass it through
i2d_PrivateKey().  This SHOULD fail, since the private bits are missing.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16036)
This commit is contained in:
Richard Levitte 2021-07-08 13:33:28 +02:00
parent f159b83a75
commit 2296cc34f3
1 changed files with 44 additions and 0 deletions
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44
test/asn1_internal_test.c
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@ -9,6 +9,12 @@
/* Internal tests for the asn1 module */
/*
* RSA low level APIs are deprecated for public use, but still ok for
* internal use.
*/
#include "internal/deprecated.h"
#include <stdio.h>
#include <string.h>
@ -107,6 +113,43 @@ static int test_standard_methods(void)
return 0;
}
/**********************************************************************
*
* Test of that i2d fail on non-existing non-optional items
*
***/
#include <openssl/rsa.h>
static int test_empty_nonoptional_content(void)
{
RSA *rsa = NULL;
BIGNUM *n = NULL;
BIGNUM *e = NULL;
int ok = 0;
if (!TEST_ptr(rsa = RSA_new())
|| !TEST_ptr(n = BN_new())
|| !TEST_ptr(e = BN_new())
|| !TEST_true(RSA_set0_key(rsa, n, e, NULL)))
goto end;
n = e = NULL; /* They are now "owned" by |rsa| */
/*
* This SHOULD fail, as we're trying to encode a public key as a private
* key. The private key bits MUST be present for a proper RSAPrivateKey.
*/
if (TEST_int_le(i2d_RSAPrivateKey(rsa, NULL), 0))
ok = 1;
end:
RSA_free(rsa);
BN_free(n);
BN_free(e);
return ok;
}
/**********************************************************************
*
* Tests of the Unicode code point range
@ -151,6 +194,7 @@ int setup_tests(void)
{
ADD_TEST(test_tbl_standard);
ADD_TEST(test_standard_methods);
ADD_TEST(test_empty_nonoptional_content);
ADD_TEST(test_unicode_range);
return 1;
}