When trying to decrypt data with an invalid key, we found that `mbedtls`
returned `0x6200` (`-25088`), which means "_CIPHER - Input data contains
invalid padding and is rejected_" from `mbedtls_cipher_finish`, but it also
set the output len as `18446744073709551516`.
In case we detect an error with padding, we leave the output len zero'ed
and return `MBEDTLS_ERR_CIPHER_INVALID_PADDING`.
Here's a reference for the way `openssl` checks the padding length:
- 1848c561ec/crypto/evp/evp_enc.c (L1023)
- b554eef43b
So add a check ensuring output is set to the least-harmful value in the
error cases.
With the robustness fix:
`PASSED (125 suites, 26644 tests run)`
Without the robustness fix:
`FAILED (125 suites, 26644 tests run)`
Signed-off-by: Andre Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Andre Goddard Rosa <agoddardrosa@roku.com>
Move the generation of tests/src/test_certs.h and tests/src/test_keys.h
to the main CMakeLists.txt. This is required because these files are
needed both by tests and programs, whereas tests/CMakeLists.txt is only
included when ENABLE_TESTING is on.
Signed-off-by: David Horstmann <david.horstmann@arm.com>
- remove new line at beginning of test_keys.h
- add footer at the end of both generated files
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
This helps removing the previous pylint exception.
Also use "with" statement for opening the file in order to
ensure that all the content is flushed to the file before
exiting.
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
Without this fix keys could be listed differently on Ubuntu 16
between different runs therefore causing
check_generated_files() to fail.
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
- rewrite output file (do not append)
- remove useless "os" import
- move pylint for main() function
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
- Embed input arguments inside the script so as to simplify the
calls in Makefiles/CMakeLists.
- add a new "--list-dependencies" command line option to print
out the list of dependencies.
- Modify tests/Makefile accordinlgy.
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
This should be CRYPTO_CLIENT and not CRYPTO_C as this function
can be used even when CRYPTO_C is not defined.
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
A bug existed previously where this guarantee was not met,
causing some issues in multi-threaded code.
Signed-off-by: Ryan Everett <ryan.everett@arm.com>
If psa_get_and_lock_key_slot fails, the slot must be wiped.
This fixes a bug where a pointer to some valid key slot can
be incorrectly returned
Signed-off-by: Ryan Everett <ryan.everett@arm.com>
The return value of snprintf() is the number of characters (excluding
the null terminator) which would have been written to the buffer if
enough space had been available. Thus, a return value of size or more
means the output was truncated.
Signed-off-by: Mingjie Shen <shen497@purdue.edu>
These calls to sprintf may overflow buf because opt.mail_from and opt.mail_to
are controlled by users. Fix by replacing sprintf with snprintf.
Signed-off-by: Mingjie Shen <shen497@purdue.edu>
