This commit fixes potential buffer overrun in:
- pk_write_rsa_der
- pk_write_ec_pubkey
In both functions, when dealing with opaque keys, there was no
check that the provided buffer was large enough to contain the
key being exported. This commit fixes this problem and it also
adds some testing in test_suite_pkwrite to trigger these checks.
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
This commit fixes potential buffer overrun in:
- pk_write_rsa_der
- pk_write_ec_pubkey
In both functions, when dealing with opaque keys, there was no
check that the provided buffer was large enough to contain the
key being exported. This commit fixes this problem and it also
adds some testing in test_suite_pkwrite to trigger these checks.
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
These functions are meant to be used internally, so their prototype
declaration is kept into rsa_internal.h.
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
New defines, which are shared with the pkparse module, lack the
new line so we manually add it when invoking
mbedtls_pem_write_buffer().
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
This commits just moves code around. The goal is to group together
functions by guards and functionality:
- RSA, EC, Opaque
- internal VS public
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
Fix defined but not used warning when
MBEDTLS_USE_PSA_CRYPTO, MBEDTLS_PK_HAVE_RFC8410_CURVES
and MBEDTLS_PK_HAVE_ECC_KEYS are defined but not
MBEDTLS_PEM_WRITE_C.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
mbedtls_pk_write_key_pem would allocate 5679 bytes in writing a DER
encoded RSA private key. To save stack usage significantly, we use
heap memory instead.
Signed-off-by: Yanray Wang <yanray.wang@arm.com>
mbedtls_pk_write_pubkey_pem would allocate 2086 bytes in writing a DER
encoded RSA public key. To save stack usage significantly, we use
heap memory instead.
Signed-off-by: Yanray Wang <yanray.wang@arm.com>
Most functions in psa_util.h are going to end up there (except those
that can be static in one file), but I wanted to have separate commits
for file creation and moving code around, so for now the new file's
pretty empty but that will change in the next few commits.
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
Note = programs are not aligned to this change because:
- the original mbedtls_pk_ec is not ufficially deprecated
- that function is used in tests when ECP_C is defined, so
the legacy version of that function is available in that
case
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
