Move the initialisation of the pkcs7 object to before the first possible
test failure, otherwise failure in those tests could result in an
uninitialised pointer being free'd. Found by coverity.
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
Add new mbedtls_pkcs12_pbe_ext function to replace
old mbedtls_pkcs12_pbe function that have security
issues.
Signed-off-by: Waleed Elmelegy <waleed.elmelegy@arm.com>
* Prevent pkcs12_pbe encryption when PKCS7 padding has been
disabled since this not part of the specs.
* Allow decryption when PKCS7 padding is disabled for legacy
reasons, However, invalid padding is not checked.
* Document new behaviour, known limitations and possible
security concerns.
* Add tests to check these scenarios. Test data has been
generated by the below code using OpenSSL as a reference:
#include <openssl/pkcs12.h>
#include <openssl/evp.h>
#include <openssl/des.h>
#include <openssl/asn1.h>
#include "crypto/asn1.h"
#include <string.h>
int main()
{
char pass[] = "\xBB\xBB\xBB\xBB\xBB\xBB\xBB\xBB\xBB";
unsigned char salt[] = "\xCC\xCC\xCC\xCC\xCC\xCC\xCC\xCC\xCC";
unsigned char plaintext[] = "\xAA\xAA\xAA\xAA\xAA\xAA\xAA\xAA";
unsigned char *ciphertext = NULL;
int iter = 10;
X509_ALGOR *alg = X509_ALGOR_new();
int ciphertext_len = 0;
int alg_nid = NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
alg->parameter = ASN1_TYPE_new();
struct asn1_object_st * aobj;
PKCS5_pbe_set0_algor(alg, alg_nid, iter,
salt, sizeof(salt)-1);
aobj = alg->algorithm;
printf("\"30%.2X", 2 + aobj->length + alg->parameter->value.asn1_string->length);
printf("06%.2X", aobj->length);
for (int i = 0; i < aobj->length; i++) {
printf("%.2X", aobj->data[i]);
}
for (int i = 0; i < alg->parameter->value.asn1_string->length; i++) {
printf("%.2X", alg->parameter->value.asn1_string->data[i]);
}
printf("\":\"");
for (int i = 0; i < sizeof(pass)-1; i++) {
printf("%.2X", pass[i] & 0xFF);
}
printf("\":\"");
for (int i = 0; i < sizeof(plaintext)-1; i++) {
printf("%.2X", plaintext[i]);
}
printf("\":");
printf("0");
printf(":\"");
unsigned char * res = PKCS12_pbe_crypt(alg, pass, sizeof(pass)-1, plaintext, sizeof(plaintext)-1, &ciphertext, &ciphertext_len, 1);
if (res == NULL)
printf("Encryption failed!\n");
for (int i = 0; i < ciphertext_len; i++) {
printf("%.2X", res[i]);
}
printf("\"\n");
return 0;
}
Signed-off-by: Waleed Elmelegy <waleed.elmelegy@arm.com>
#
Conflicts:
* `include/psa/crypto_sizes.h`: the addition of the `u` suffix in this branch
conflicts with the rework of the calculation of `PSA_HASH_MAX_SIZE` and
`PSA_HMAC_MAX_HASH_BLOCK_SIZE` in `development`. Use the new definitions
from `development`, and add the `u` suffix to the relevant constants.
Remove unnecessary "../library" prefix from test suite includes. This
makes the tests repo-agnostic between the mbedtls and psa-crypto repos.
Signed-off-by: David Horstmann <david.horstmann@arm.com>
The test for outputing a hexstring representation is actually
testing dn_gets, and is tested in test_suite_x509parse.
Signed-off-by: Agathiyan Bragadeesh <agathiyan.bragadeesh2@arm.com>
Due to change in handling non-ascii characters, existing tests had to be
updated to handle the new implementation. New tests and certificates
are added to test the escaping functionality in edge cases.
Signed-off-by: Agathiyan Bragadeesh <agathiyan.bragadeesh2@arm.com>
Converts none ascii to escaped hexpairs in mbedtls_x509_dn_gets and
interprets hexpairs in mbedtls_x509_string_to_names.
Signed-off-by: Agathiyan Bragadeesh <agathiyan.bragadeesh2@arm.com>
This escapes special characters according to RFC 4514 in
mbedtls_x509_dn_gets and de-escapes in mbedtls_x509_string_to_names.
This commit does not handle hexpairs.
Signed-off-by: Agathiyan Bragadeesh <agathiyan.bragadeesh2@arm.com>
Do explain why we don't test a smaller buffer in addition to testing the
nominal size and a larger buffer.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Some basic test coverage for now:
* Nominal operation.
* Larger output buffer.
* Clone an operation and use it after the original operation stops.
Generate test data automatically. For the time being, only do that for
hashes that Python supports natively. Supporting all algorithms is future
work.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
"Fix PBKDF2 with empty salt on platforms where malloc(0)=NULL" took care of
making an empty salt work. But it didn't fix the case of an empty salt
segment followed by a non-empty salt segment, which still invoked memcpy
with a potentially null pointer as the source. This commit fixes that case,
and also simplifies the logic in the function a little.
Test data obtained with:
```
pip3 install cryptodome
python3 -c 'import sys; from Crypto.Hash import SHA256; from Crypto.Protocol.KDF import PBKDF2; cost = int(sys.argv[1], 0); salt = bytes.fromhex(sys.argv[2]); password = bytes.fromhex(sys.argv[3]); n = int(sys.argv[4], 0); print(PBKDF2(password=password, salt=salt, dkLen=n, count=cost, hmac_hash_module=SHA256).hex())' 1 "" "706173737764" 64
```
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The hardware module name otherName SAN contains 2 OIDs:
OtherName ::= SEQUENCE {
type-id OBJECT IDENTIFIER,
value [0] EXPLICIT ANY DEFINED BY type-id }
HardwareModuleName ::= SEQUENCE {
hwType OBJECT IDENTIFIER,
hwSerialNum OCTET STRING }
The first, type-id, is the one that identifies the otherName as a
HardwareModuleName. The second, hwType, identifies the type of hardware.
This change fixes 2 issues:
1. We were erroneously trying to identify HardwareModuleNames by looking
at hwType, not type-id.
2. We accidentally inverted the check so that we were checking that
hwType did NOT match HardwareModuleName.
This fix ensures that type-id is correctly checked to make sure that it
matches the OID for HardwareModuleName.
Signed-off-by: David Horstmann <david.horstmann@arm.com>
New bignum modules are only needed when the new ecp_curves module is
present. Remove them when they are not needed to save code size.
Signed-off-by: Janos Follath <janos.follath@arm.com>
Add new mbedtls_pkcs5_pbe2_ext function to replace old
function with possible security issues.
Signed-off-by: Waleed Elmelegy <waleed.elmelegy@arm.com>
Those test cases aren't actually executed due to another typo which is
beyond the scope of this commit and will be resolved in
https://github.com/Mbed-TLS/mbedtls/pull/8029 . But update DES to AES anyway.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
"tests/data_files/test-ca.key" is now encrypted using AES instead of DES.
Update test dependencies accordingly. This fixes `depends.py cipher_id`.
This is a partial cherry-pick of 1a4cc5e92c
(done manually because the context on the same line is different).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
After upgrading certificates, some parsing unit tests are failing because
the new certificates have a different expiry date, by design. Switch those
test cases to using the moved copy of the old data (as we did in a more
systematic way in the development branch).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
