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sys/psa_crypto: Fix missing usage flags when creating new keys

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The PSA crypto specification states that when creating keys,
the usage flags PSA_KEY_USAGE_SIGN_HASH/PSA_KEY_USAGE_VERIFY_HASH
automatically set the usage flags
PSA_KEY_USAGE_SIGN_MESSAGE/PSA_KEY_USAGE_VERIFY_MESSAGE on the key.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
This commit is contained in:
Armin Wolf 2024-08-07 07:13:42 +02:00
parent d0c4e01ca3
commit 82b07318ec
1 changed files with 9 additions and 0 deletions
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9
sys/psa_crypto/psa_crypto.c
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@ -1133,6 +1133,15 @@ static psa_status_t psa_start_key_creation(psa_key_creation_method_t method,
slot = *p_slot;
slot->attr = *attributes;
/* See 9.5.2. Key usage flags */
if (slot->attr.policy.usage & PSA_KEY_USAGE_SIGN_HASH) {
slot->attr.policy.usage |= PSA_KEY_USAGE_SIGN_MESSAGE;
}
if (slot->attr.policy.usage & PSA_KEY_USAGE_VERIFY_HASH) {
slot->attr.policy.usage |= PSA_KEY_USAGE_VERIFY_MESSAGE;
}
if (PSA_KEY_LIFETIME_IS_VOLATILE(slot->attr.lifetime)) {
slot->attr.id = key_id;
}