Commit Graph

19 Commits

Author SHA1 Message Date
Ronald Cron
cfc3c7b593 psa: Remove test code in the library
The current testing of the PSA configuration is
based on test code located in the library itself.

Remove this code as we are moving to using a
test library instead.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-11-30 14:49:19 +01:00
Ronald Cron
7b7854ed4b tests: Rename test driver entry points
Rename test driver entry points to
libtestdriver1_<name of the Mbed TLS entry point>.

This aligns with the renaming of all Mbed TLS APIs
for the test driver library (that will be put in place
in the following commits) to avoid name conflicts
when linking it with the Mbed TLS library.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-11-30 14:49:19 +01:00
Ronald Cron
2091eed609 psa: driver: Reduce the scope of test driver entry points
Define test driver entry points that provide an alternative
to Mbed TLS driver entry points only when the PSA configuration
is used. Their purpose is only to test the PSA configuration
thus there is no good reason to use them out of this scope.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-11-30 13:24:47 +01:00
Gilles Peskine
f8362ca847 Readability improvements
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-10-28 10:07:37 +02:00
Gilles Peskine
44fa40cd56 Fix PSA_ALG_RSA_PSS verification accepting an arbitrary salt length
PSA_ALG_RSA_PSS algorithm now accepts only the same salt length for
verification that it produces when signing, as documented.

Fixes #4946.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-10-28 10:07:27 +02:00
Janos Follath
03daae6894 Improve psa_rsa_decode_md_type()
Remove a case that cannot be triggered as PSA_ALG_SIGN_GET_HASH always
returns 0 for raw algorithms.

Signed-off-by: Janos Follath <janos.follath@arm.com>
2021-06-22 12:57:05 +02:00
Janos Follath
b23b5745b5 PSA RSA PSS: pass pre-hash algorithm to Mbed TLS
PSA Crypto always passed MBEDTLS_MD_NONE to Mbed TLS, which worked well
as Mbed TLS does not use this parameter for anything beyond determining
the input lengths.

Some alternative implementations however check the consistency of the
algorithm used for pre-hash and for other uses in verification (verify
operation and mask generation) and fail if they don't match. This makes
all such verifications fail.

Furthermore, the PSA Crypto API mandates that the pre-hash and internal
uses are aligned as well.

Fixes #3990.

Signed-off-by: Janos Follath <janos.follath@arm.com>
2021-06-22 12:57:00 +02:00
Jaeden Amero
c17f29309f psa: Support RSA signature without MBEDTLS_GENPRIME
On space-constrained platforms, it is a useful configuration to be able
to import/export and perform RSA key pair operations, but to exclude RSA
key generation, potentially saving flash space. It is not possible to
express this with the PSA_WANT_ configuration system at the present
time. However, in previous versions of Mbed TLS (v2.24.0 and earlier) it
was possible to configure a software PSA implementation which was
capable of making RSA signatures but not capable of generating RSA keys.
To do this, one unset MBEDTLS_GENPRIME.

Since the addition of MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR, this
expressivity was lost. Expressing that you wanted to work with RSA key
pairs forced you to include the ability to generate key pairs as well.

Change psa_crypto_rsa.c to only call mbedtls_rsa_gen_key() if
MBEDTLS_GENPRIME is also set. This restores the configuration behavior
present in Mbed TLS v2.24.0 and earlier versions.

It left as a future exercise to add the ability to PSA to be able to
express a desire for a software or accelerator configuration that
includes RSA key pair operations, like signature, but excludes key pair
generation.

Without this change, linker errors will occur when attempts to call,
which doesn't exist when MBEDTLS_GENPRIME is unset.
    psa_crypto_rsa.c.obj: in function `rsa_generate_key':
    psa_crypto_rsa.c:320: undefined reference to `mbedtls_rsa_gen_key'

Fixes #4512

Signed-off-by: Jaeden Amero <jaeden.amero@arm.com>
2021-05-21 10:21:27 +01:00
Steven Cooreman
5f88e776c3 Move mbedtls_md_info_from_psa into the mbedtls hash driver
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-15 12:14:40 +01:00
Ronald Cron
d2fb85479a psa: Add RSA sign/verify hash support to the transparent test driver
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-18 15:45:06 +01:00
Ronald Cron
7bdbca33b2 psa: Move RSA sign/verify hash to the PSA RSA specific file
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-17 10:52:26 +01:00
Ronald Cron
2365fde153 psa: rsa: Rename psa_read_rsa_exponent
Rename psa_read_rsa_exponent to psa_rsa_read_exponent
for consistency in function naming.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-16 09:07:46 +01:00
Ronald Cron
3a9c46b184 Add RSA key generation support to the transparent test driver
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-16 09:04:50 +01:00
Ronald Cron
9e18fc1cf9 Move RSA key generation code to the PSA RSA specific C file
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-16 09:04:50 +01:00
Ronald Cron
784fb326ae psa: Add ECP/RSA transparent test driver import_key entry point
Add ECP/RSA transparent test driver import_key
entry point and use it in the transparent test
driver entry supporting both ECP and RSA.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-02 11:29:08 +01:00
Ronald Cron
abf2aef90f psa: Move RSA key import to psa_crypto_rsa.c
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-02 11:29:08 +01:00
Ronald Cron
f1057d3589 psa: Add ECP/RSA transparent test driver export_public_key entry point
Add ECP/RSA transparent test driver export_public_key
entry point and use it in the transparent test driver
supporting both ECP and RSA.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-02 11:29:08 +01:00
Ronald Cron
e5ca3d8533 psa: Move RSA/ECP export code to RSA/ECP specific C file
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-02 11:29:08 +01:00
Ronald Cron
00b7bfc2c4 psa: Move xxx_load_representation functions to RSA/ECP specific modules
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-02-02 11:29:08 +01:00