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377a310da4
Declare all AES and DES functions that return int as needing to have their result checked, and do check the result in our code. A DES or AES block operation can fail in alternative implementations of mbedtls_internal_aes_encrypt() (under MBEDTLS_AES_ENCRYPT_ALT), mbedtls_internal_aes_decrypt() (under MBEDTLS_AES_DECRYPT_ALT), mbedtls_des_crypt_ecb() (under MBEDTLS_DES_CRYPT_ECB_ALT), mbedtls_des3_crypt_ecb() (under MBEDTLS_DES3_CRYPT_ECB_ALT). A failure can happen if the accelerator peripheral is in a bad state. Several block modes were not catching the error. This commit does the following code changes, grouped together to avoid having an intermediate commit where the build fails: * Add MBEDTLS_CHECK_RETURN to all functions returning int in aes.h and des.h. * Fix all places where this causes a GCC warning, indicating that our code was not properly checking the result of an AES operation: * In library code: on failure, goto exit and return ret. * In pkey programs: goto exit. * In the benchmark program: exit (not ideal since there's no error message, but it's what the code currently does for failures). * In test code: TEST_ASSERT. * Changelog entry. Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com> |
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.jenkins | ||
configs | ||
data_files | ||
docker/bionic | ||
git-scripts | ||
include | ||
scripts | ||
src | ||
suites | ||
.gitignore | ||
CMakeLists.txt | ||
compat-in-docker.sh | ||
compat.sh | ||
context-info.sh | ||
Descriptions.txt | ||
make-in-docker.sh | ||
Makefile | ||
ssl-opt-in-docker.sh | ||
ssl-opt.sh |