Due to the way the current PK API works, it may have not been clear
for the library clients, how big output buffers they should pass
to the signing functions. Depending on the key type they depend on
MPI or EC specific compile-time constants.
Inside the library, there were places, where it was assumed that
the MPI size will always be enough, even for ECDSA signatures.
However, for very small sizes of the MBEDTLS_MPI_MAX_SIZE and
sufficiently large key, the EC signature could exceed the MPI size
and cause a stack overflow.
This test establishes both conditions -- small MPI size and the use
of a long ECDSA key -- and attempts to sign an arbitrary file.
This can cause a stack overvlow if the signature buffers are not
big enough, therefore the test is performed for an ASan build.
* origin/pr/2530: (27 commits)
Style fix
Fix test data
Update test data
Add some negative test cases
Fix minor issues
Add ChangeLog entry about listing all SAN
Check that SAN is not malformed when parsing
Documentation fixes
Fix ChangeLog entry
Fail in case critical crt policy not supported
Update SAN parsing documentation
change the type of hardware_module_name member
Change mbedtls_x509_subject_alternative_name
Add length checking in certificate policy parsing
Rephrase x509_crt extension member description
Rephrase changeLog entries
Remove redundant memset()
Propogate error when parsing SubjectAltNames
Tidy up style in x509_info_subject_alt_name
Print unparseable SubjectAlternativeNames
...
* origin/pr/2538:
Remove unneeded whitespaces
Fix mingw CI failures
Initialize psa_crypto in ssl test
Fix missing tls version test failures
Fix typo
Fix ChangeLog entry location
Add changeLog entry
Add test for export keys functionality
Add function to retrieve the tls_prf type
Add tests for the public tls_prf API
Add public API for tls_prf
Add eap-tls key derivation in the examples.
Add ChangeLog entry
Add an extra key export function
Have the temporary buffer allocated dynamically
Zeroize secret data in the exit point
Add a single exit point in key derivation function
Make `mbedtls_x509_subject_alternative_name` to be a single item
rather than a list. Adapt the subject alternative name parsing function,
to receive a signle `mbedtls_x509_buf` item from the subject_alt_names
sequence of the certificate.
In x509_info_subject_alt_name() we silently dropped names that we
couldn't parse because they are not supported or are malformed. (Being
malformed might mean damaged file, but can be a sign of incompatibility
between applications.)
This commit adds code notifying the user that there is something, but
we can't parse it.
* origin/pr/1633: (26 commits)
Fix uninitialized variable access in debug output of record enc/dec
Adapt PSA code to ssl_transform changes
Ensure non-NULL key buffer when building SSL test transforms
Catch errors while building SSL test transforms
Use mbedtls_{calloc|free}() in SSL unit test suite
Improve documentation of mbedtls_record
Adapt record length value after encryption
Alternative between send/recv transform in SSL record test suite
Fix memory leak on failure in test_suite_ssl
Rename ssl_decrypt_buf() to mbedtls_ssl_decrypt_buf() in comment
Add record encryption/decryption tests for ARIA to SSL test suite
Improve documentation of mbedtls_ssl_transform
Double check that record expansion is as expected during decryption
Move debugging output after record decryption
Add encryption/decryption tests for small records
Add tests for record encryption/decryption
Reduce size of `ssl_transform` if no MAC ciphersuite is enabled
Remove code from `ssl_derive_keys` if relevant modes are not enabled
Provide standalone version of `ssl_decrypt_buf`
Provide standalone version of `ssl_encrypt_buf`
...
This commit adds tests to check the behavior of the record encryption
routine `ssl_encrypt_buf` when the buffer surrounding the plaintext is
too small to hold the expansion in the beginning and end (due to IV's,
padding, and MAC).
Each test starts successively increases the space available at the
beginning, end, or both, of the record buffer, and checks that the
record encryption either fails with a BUFFER_TOO_SMALL error, or
that it succeeds. Moreover, if it succeeds, it is checked that
decryption succeeds, too, and results in the original record.
This commit adds tests exercising mutually inverse pairs of
record encryption and decryption transformations for the various
transformation types allowed in TLS: Stream, CBC, and AEAD.
Resolve conflicts by performing the following:
- Ensure calls to mbedtls_x509_crt_verify_* are made with callbacks
* origin/pr/2539:
Make CRT callback tests more robust
Rename constant in client2.c
Fix typo
Add test for configuration specific CRT callback
Fix doxygen documentation of mbedtls_ssl_set_verify()
Add test exercising context-specific CRT callback to ssl-opt.sh
Add cmd to use context-specific CRT callback in ssl_client2
Implement context-specific verification callbacks
Add context-specific CRT verification callbacks
Improve documentation of mbedtls_ssl_conf_verify()
* origin/pr/2532: (29 commits)
Document and test flags in x509_verify
Fix style issues and a typo
Fix name to function call
Address comments for x509 tests
Address review comments regarding ssl_client2 and ssl tests
Remove mbedtls_ from the static function name
Change docs according to review comments
Change the verify function naming
Fix ssl_client2 and ssl_server2 if !PLATFORM_C
Correct placement of usage macro in ssl_client2
Update version_features.c
Remove trailing whitespace in test_suite_x509parse.function
Update query_config.c
Add ssl-opt.sh tests for trusted CA callbacks
Only run X.509 CRT verification tests with CA callback tests if !CRL
Minor fixes to CA callback tests
Declare CA callback type even if feature is disabled
Implement X.509 CRT verification using CA callback
Add prototype for CRT verification with static and dynamic CA list
Make use of CA callback if present when verifying peer CRT chain
...
The documentation doesn't explicitly say whether it's allowed or not.
This currently works with the default software implementation, but
only by accident. It isn't guaranteed to work with new ciphers or with
alternative implementations of individual ciphers, and it doesn't work
with the PSA wrappers. So don't do it.
Run ssl-opt.sh on x86_32 with ASan. This may detect bugs that only
show up on 32-bit platforms, for example due to size_t overflow.
For this component, turn off some memory management features that are
not useful, potentially slow, and may reduce ASan's effectiveness at
catching buffer overflows.
