This avoids a possible gotcha when if the application code reuses an
existing attribute structure.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Use new functions from the RSA module to parse and write
private and public keys in PKCS#1 format.
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
This feature was an unofficial extension which was never documented.
Now that we are removing the PK dependency in order to use only
functions from RSA module, PEM support is unavailable. Therefore
we explicitly remove it.
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>
Upon further consideration we think that a remote attacker close to the
victim might be able to have precise enough timing information to
exploit the side channel as well. Update the Changelog to reflect this.
Signed-off-by: Janos Follath <janos.follath@arm.com>
Any timing variance dependant on the output of this function enables a
Bleichenbacher attack. It is extremely difficult to use safely.
In the Marvin attack paper
(https://people.redhat.com/~hkario/marvin/marvin-attack-paper.pdf) the
author suggests that implementations of PKCS 1.5 decryption that don't
include a countermeasure should be considered inherently dangerous.
They suggest that all libraries implement the same countermeasure, as
implementing different countermeasures across libraries enables the
Bleichenbacher attack as well.
This is extremely fragile and therefore we don't implement it. The use
of PKCS 1.5 in Mbed TLS implements the countermeasures recommended in
the TLS standard (7.4.7.1 of RFC 5246) and is not vulnerable.
Add a warning to PKCS 1.5 decryption to warn users about this.
Signed-off-by: Janos Follath <janos.follath@arm.com>
The initializatio macros need to be updated to support the case
where the crypto client view of the structures is being initialized
Signed-off-by: Antonio de Angelis <antonio.deangelis@arm.com>
In case MBEDTLS_PSA_CRYPTO_CLIENT is defined and MBEDTLS_PSA_CRYPTO_C
is not, a client view of the multipart operation contexts is provided
through an handle object that allows mapping to the corresponding
service side data structures.
Signed-off-by: Antonio de Angelis <antonio.deangelis@arm.com>
Temporary workaround to not run the early data test
in Windows-2013 where there is an issue with
mbedtls_vsnprintf().
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Move the setting of the debug callback to
the endpoint initialization function. That
way, no need to repeat it in various testing
scenarios.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This aims to provide a basis for negative testing
around TLS 1.3 ticket, replacing eventually the
negative tests done in ssl-opt.sh using the
dummy_ticket option.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Add ticket write/parse test functions as defined
by mbedtls_ssl_ticket_write/parse_t. They are
intended to be used in negative testing
involving tickets.
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
