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tls: use already existing symbols to size the buffer for XXDḦ peer key

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Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
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Valerio Setti
2023-07-10 14:31:39 +02:00
parent aa7cbd619c
commit da403b749e
2 changed files with 4 additions and 26 deletions
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14
library/ssl_misc.h
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@ -757,24 +757,12 @@ struct mbedtls_ssl_handshake_params {
#endif /* !MBEDTLS_USE_PSA_CRYPTO &&
MBEDTLS_KEY_EXCHANGE_SOME_ECDH_OR_ECDHE_1_2_ENABLED */
#if defined(PSA_WANT_ALG_ECDH) && defined(PSA_WANT_ALG_FFDH)
#if (MBEDTLS_PSA_MAX_FFDH_PUBKEY_LENGTH >= MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH)
#define SSL_XXDH_PSA_PEERKEY_SIZE MBEDTLS_PSA_MAX_FFDH_PUBKEY_LENGTH
#else
#define SSL_XXDH_PSA_PEERKEY_SIZE MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
#endif
#elif defined(PSA_WANT_ALG_ECDH)
#define SSL_XXDH_PSA_PEERKEY_SIZE MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH
#else
#define SSL_XXDH_PSA_PEERKEY_SIZE MBEDTLS_PSA_MAX_FFDH_PUBKEY_LENGTH
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_SOME_XXDH_ANY_PSA_ENABLED)
psa_key_type_t xxdh_psa_type;
size_t xxdh_bits;
mbedtls_svc_key_id_t xxdh_psa_privkey;
uint8_t xxdh_psa_privkey_is_external;
unsigned char xxdh_psa_peerkey[SSL_XXDH_PSA_PEERKEY_SIZE];
unsigned char xxdh_psa_peerkey[PSA_EXPORT_PUBLIC_KEY_MAX_SIZE];
size_t xxdh_psa_peerkey_len;
#endif /* MBEDTLS_KEY_EXCHANGE_SOME_XXDH_ANY_PSA_ENABLED */