mirror of
https://github.com/yuzu-emu/mbedtls.git
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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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| .. | ||
| CMakeLists.txt | ||
| dh_client.c | ||
| dh_genprime.c | ||
| dh_prime.txt | ||
| dh_server.c | ||
| ecdh_curve25519.c | ||
| ecdsa.c | ||
| gen_key.c | ||
| key_app.c | ||
| key_app_writer.c | ||
| mpi_demo.c | ||
| pk_decrypt.c | ||
| pk_encrypt.c | ||
| pk_sign.c | ||
| pk_verify.c | ||
| rsa_decrypt.c | ||
| rsa_encrypt.c | ||
| rsa_genkey.c | ||
| rsa_priv.txt | ||
| rsa_pub.txt | ||
| rsa_sign.c | ||
| rsa_sign_pss.c | ||
| rsa_verify.c | ||
| rsa_verify_pss.c | ||