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PK: adjust size macro in case PSA is disabled

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Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
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Manuel Pégourié-Gonnard
2026-02-27 10:37:34 +01:00
parent 127b0352b3
commit 023c51b282
1 changed files with 11 additions and 2 deletions
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13
library/pk_internal.h
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@@ -61,12 +61,21 @@
#endif
#if defined(PK_EXPORT_KEYS_ON_THE_STACK)
/* We know for ECC, pubkey are longer than privkeys, but double check */
/* We know for ECC, pubkey are longer than privkeys, but double check.
* Also, take the maximum size of legacy and PSA, as PSA might be disabled. */
#define PK_EXPORT_KEY_STACK_BUFFER_SIZE MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
#if MBEDTLS_PSA_MAX_EC_KEY_PAIR_LENGTH > PK_EXPORT_KEY_STACK_BUFFER_SIZE
#if PK_EXPORT_KEY_STACK_BUFFER_SIZE < MBEDTLS_PSA_MAX_EC_KEY_PAIR_LENGTH
#undef PK_EXPORT_KEY_STACK_BUFFER_SIZE
#define PK_EXPORT_KEY_STACK_BUFFER_SIZE MBEDTLS_PSA_MAX_EC_KEY_PAIR_LENGTH
#endif
#if PK_EXPORT_KEY_STACK_BUFFER_SIZE < MBEDTLS_ECP_MAX_BYTES
#undef PK_EXPORT_KEY_STACK_BUFFER_SIZE
#define PK_EXPORT_KEY_STACK_BUFFER_SIZE MBEDTLS_ECP_MAX_BYTES
#endif
#if PK_EXPORT_KEY_STACK_BUFFER_SIZE < MBEDTLS_ECP_MAX_PT_LEN
#undef PK_EXPORT_KEY_STACK_BUFFER_SIZE
#define PK_EXPORT_KEY_STACK_BUFFER_SIZE MBEDTLS_ECP_MAX_PT_LEN
#endif
#endif
#if defined(MBEDTLS_PK_HAVE_ECC_KEYS) && !defined(MBEDTLS_PK_USE_PSA_EC_DATA)