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psa: cipher: Dispatch based on driver identifier

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For cipher multi-part operations, dispatch based on
the driver identifier even in the case of the
Mbed TLS software implementation (viewed as a driver).
Also use the driver identifier to check that an
cipher operation context is active or not.

This aligns the way hash and cipher multi-part
operations are dispatched.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This commit is contained in:
Ronald Cron
2021-03-10 08:34:23 +01:00
parent 06aa442bef
commit 49fafa98b1
4 changed files with 88 additions and 99 deletions
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6
library/psa_crypto_cipher.c
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@ -49,13 +49,7 @@ static psa_status_t cipher_setup(
* available for the given algorithm & key. */
mbedtls_cipher_init( &operation->ctx.cipher );
/* Once the cipher context is initialised, it needs to be freed using
* psa_cipher_abort. Indicate there is something to be freed through setting
* alg, and indicate the operation is being done using mbedtls crypto through
* setting mbedtls_in_use. */
operation->alg = alg;
operation->mbedtls_in_use = 1;
key_bits = attributes->core.bits;
cipher_info = mbedtls_cipher_info_from_psa( alg, key_type,
key_bits, NULL );