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Fix erasure of external flags

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This didn't break anything now, but would have broken things once we
start to add internal flags.
This commit is contained in:
Gilles Peskine 2019-08-07 15:42:14 +02:00
parent 5a68056755
commit 013f5474cf
1 changed files with 5 additions and 2 deletions
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7
library/psa_crypto.c
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@ -1560,8 +1560,11 @@ static psa_status_t psa_start_key_creation(
slot->attr = attributes->core;
/* Erase external-only flags from the internal copy. To access
* external-only flags, query `attributes`. */
slot->attr.flags |= ~MBEDTLS_PSA_KA_MASK_EXTERNAL_ONLY;
* external-only flags, query `attributes`. Thanks to the check
* in psa_validate_key_attributes(), this leaves the dual-use
* flags and any internal flag that psa_internal_allocate_key_slot()
* may have set. */
slot->attr.flags &= ~MBEDTLS_PSA_KA_MASK_EXTERNAL_ONLY;
#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
/* For a key in a secure element, we need to do three things: