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Remove workaround for non-zero shared_secret array

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PSA_KEY_AGREEMENT_MAX_SHARED_SECRET_SIZE is always greater
than 1 so no need for the workaround on the original patch

Signed-off-by: Antonio de Angelis <antonio.deangelis@arm.com>
This commit is contained in:
Antonio de Angelis
2023-08-17 15:36:19 +01:00
parent 1505d3232d
commit 431e5c4199
1 changed files with 1 additions and 6 deletions
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7
library/psa_crypto.c
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@@ -4948,13 +4948,8 @@ static psa_status_t psa_key_agreement_internal(psa_key_derivation_operation_t *o
size_t peer_key_length) size_t peer_key_length)
{ {
psa_status_t status; psa_status_t status;
#if PSA_KEY_AGREEMENT_MAX_SHARED_SECRET_SIZE != 0
uint8_t shared_secret[PSA_KEY_AGREEMENT_MAX_SHARED_SECRET_SIZE]; uint8_t shared_secret[PSA_KEY_AGREEMENT_MAX_SHARED_SECRET_SIZE];
size_t shared_secret_length = sizeof(shared_secret);
#else
uint8_t *shared_secret = NULL;
size_t shared_secret_length = 0; size_t shared_secret_length = 0;
#endif
psa_algorithm_t ka_alg = PSA_ALG_KEY_AGREEMENT_GET_BASE(operation->alg); psa_algorithm_t ka_alg = PSA_ALG_KEY_AGREEMENT_GET_BASE(operation->alg);
/* Step 1: run the secret agreement algorithm to generate the shared /* Step 1: run the secret agreement algorithm to generate the shared
@@ -4963,7 +4958,7 @@ static psa_status_t psa_key_agreement_internal(psa_key_derivation_operation_t *o
private_key, private_key,
peer_key, peer_key_length, peer_key, peer_key_length,
shared_secret, shared_secret,
shared_secret_length, sizeof(shared_secret),
&shared_secret_length); &shared_secret_length);
if (status != PSA_SUCCESS) { if (status != PSA_SUCCESS) {
goto exit; goto exit;