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PK: use PSA size macros when exporting to PSA

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Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
This commit is contained in:
Manuel Pégourié-Gonnard
2026-03-03 09:50:53 +01:00
parent 1fee3da79a
commit 4c4cfe98de
2 changed files with 3 additions and 3 deletions
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2
library/pk.c
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@@ -1245,7 +1245,7 @@ int mbedtls_pk_verify_ext(mbedtls_pk_type_t type, const void *options,
#if defined(MBEDTLS_USE_PSA_CRYPTO)
if (pss_opts->mgf1_hash_id == md_alg) {
unsigned char buf[MBEDTLS_PK_RSA_PUB_DER_MAX_BYTES];
unsigned char buf[PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS)];
unsigned char *p;
int key_len;
size_t signature_length;

4
library/pk_wrap.c
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@@ -72,7 +72,7 @@ static int rsa_verify_wrap(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
psa_status_t status;
int key_len;
unsigned char buf[MBEDTLS_PK_RSA_PUB_DER_MAX_BYTES];
unsigned char buf[PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS)];
unsigned char *p = buf + sizeof(buf);
psa_algorithm_t psa_alg_md;
size_t rsa_len = mbedtls_rsa_get_len(rsa);
@@ -375,7 +375,7 @@ static int rsa_encrypt_wrap(mbedtls_pk_context *pk,
psa_algorithm_t psa_md_alg, psa_encrypt_alg;
psa_status_t status;
int key_len;
unsigned char buf[MBEDTLS_PK_RSA_PUB_DER_MAX_BYTES];
unsigned char buf[PSA_KEY_EXPORT_RSA_PUBLIC_KEY_MAX_SIZE(PSA_VENDOR_RSA_MAX_KEY_BITS)];
unsigned char *p = buf + sizeof(buf);
((void) f_rng);