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Extend PSA_USAGE_SIGN/VERIFY_HASH key policies

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According to the PSA specification the PSA_USAGE_SIGN_HASH has the
permission to sign a message as PSA_USAGE_SIGN_MESSAGE. Similarly the
PSA_USAGE_VERIFY_HASH has the permission to verify a message as
PSA_USAGE_VERIFY_MESSAGE. These permission will also be present when
the application queries the usage flags of the key.

Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
This commit is contained in:
gabor-mezei-arm 2021-04-29 15:57:57 +02:00
parent eaacabf98d
commit eeaeef4d58
1 changed files with 6 additions and 0 deletions
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6
include/psa/crypto_struct.h
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@ -394,6 +394,12 @@ static inline psa_key_lifetime_t psa_get_key_lifetime(
static inline void psa_set_key_usage_flags(psa_key_attributes_t *attributes,
psa_key_usage_t usage_flags)
{
if( usage_flags & PSA_KEY_USAGE_SIGN_HASH )
usage_flags |= PSA_KEY_USAGE_SIGN_MESSAGE;
if( usage_flags & PSA_KEY_USAGE_VERIFY_HASH )
usage_flags |= PSA_KEY_USAGE_VERIFY_MESSAGE;
attributes->core.policy.usage = usage_flags;
}