Use escape mechanism defined in RFC 1779 when parsing commas and other
special characters in X509 DN values. Resolves failures when generating
a certificate with a CSR containing a comma in subject value.
Fixes#769.
Signed-off-by: Werner Lewis <werner.lewis@arm.com>
Fix an issue reported by Coverity whereby some constant time functions
called from the ssl decrypt code could potentially access uninitialised
memory.
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
psa_raw_key_agreement() returned PSA_ERROR_INVALID_ARGUMENT instead of
PSA_ERROR_BUFFER_TOO_SMALL when the output buffer was too small for ECDH,
the only algorithm that is currently implemented. Make it return the correct
error code.
The reason for the wrong error code is that ecdh.c returns
MBEDTLS_ERR_ECP_BAD_INPUT_DATA, presumably for similarith with dhm.c. It
might make sense to change ecdh.c to use MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL,
but dhm.c doesn't have an existing BUFFER_TOO_SMALL error. To minimize the
impact of the fix, handle this in the PSA layer.
Fixes#5735.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Removes a case in mbedtls_asn1_named_data() where memcpy() could be
called with a null pointer and zero length. A test case is added for
this code path, to catch the undefined behavior when running tests with
UBSan.
Signed-off-by: Werner Lewis <werner.lewis@arm.com>
In configurations with MBEDTLS_SSL_DTLS_CONNECTION_ID enabled but none of
MBEDTLS_SSL_HW_RECORD_ACCEL, MBEDTLS_SSL_EXPORT_KEYS or MBEDTLS_DEBUG_C,
DTLS handshakes using CID would crash due to a null pointer dereference.
Fix this. Fixes#3998.
Detected by running compat.sh in config-ccm-psk-dtls1_2.h.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Deduce MBEDTLS_PSA_ACCEL_KEY_TYPE_ARIA for the driver build from its value
from the core build, as is done for other key types. This had not been done
correctly when adding ARIA support to the PSA subsystem.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The timing module might include time.h on its own when on
a suitable platform, even if MBEDTLS_HAVE_TIME is disabled.
Co-authored-by: Tom Cosgrove <tom.cosgrove@arm.com>
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
Having such implementation might cause issues for those that
expect to have a working implementation.
Having a compile-time error is better in such case.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
It doesn't make sense for psa_mac_verify() to return
PSA_ERROR_BUFFER_TOO_SMALL since it doesn't have an output buffer. But this
was happening when requesting the verification of an unsupported algorithm
whose output size is larger than the maximum supported MAC size, e.g.
HMAC-SHA-512 when building with only SHA-256 support. Arrange to return
PSA_ERROR_NOT_SUPPORTED instead.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
In some cases, a cipher operation for an unsupported algorithm could succeed
in psa_cipher_{encrypt,decrypt}_setup() and fail only when input is actually
fed. This is not a major bug, but it has several minor downsides: fail-late
is harder to diagnose for users than fail-early; some code size can be
gained; tests that expect failure for not-supported parameters would have to
be accommodated to also accept success.
This commit at least partially addresses the issue. The only completeness
goal in this commit is to pass our full CI, which discovered that disabling
only PSA_WANT_ALG_STREAM_CIPHER or PSA_WANT_ALG_ECB_NO_PADDING (but keeping
the relevant key type) allowed cipher setup to succeed, which caused
failures in test_suite_psa_crypto_op_fail.generated in
component_test_psa_crypto_config_accel_xxx.
Changes in this commit:
* mbedtls_cipher_info_from_psa() now returns NULL for unsupported cipher
algorithms. (No change related to key types.)
* Some code that is only relevant for ECB is no longer built if
PSA_WANT_ALG_ECB_NO_PADDING is disabled.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Otherwise the systematically generated algorithm-not-supported tests
complain when they try to start an operation and succeed.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Otherwise the systematically generated algorithm-not-supported tests
complain when they try to start an operation and succeed.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Encrypt-Then-Mac (ETM) is supported in Mbed TLS
server for TLS version geater than SSLv3 and only
for the CBC cipher mode thus make it
clear in the SSL context.
The previous code was ok as long as the check of
the ETM status was done only in the case of the CBC
cipher mode but fragile as #5573 revealed.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Also move the self test implementation guards
so that alternate implementations must
provide their own.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
MBEDTLS_HAVE_TIME is documented as: "System has time.h and time()."
If that is not defined, do not attempt to include time.h.
A particular problem is platform-time.h, which should only be included if
MBEDTLS_HAVE_TIME is defined, which makes everything messier. Maybe it
should be refactored to have the check inside the header.
Signed-off-by: Daniel Axtens <dja@axtens.net>
