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pk_wrap: fix sizing for private key buffer

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Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
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Valerio Setti 2023-04-04 10:20:53 +02:00
parent f3dc4a1a21
commit 8eb552647f
1 changed files with 4 additions and 1 deletions
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5
library/pk_wrap.c
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@ -1111,7 +1111,10 @@ static int eckey_check_pair_psa(const void *pub, const void *prv)
mbedtls_ecp_keypair *prv_ctx = (mbedtls_ecp_keypair *) prv;
mbedtls_ecp_keypair *pub_ctx = (mbedtls_ecp_keypair *) pub;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
uint8_t prv_key_buf[MBEDTLS_PSA_MAX_EC_KEY_PAIR_LENGTH];
/* We are using MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH for the size of this
* buffer because it will be used to hold the private key at first and
* then its public part (but not at the same time). */
uint8_t prv_key_buf[MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH];
size_t prv_key_len;
uint8_t pub_key_buf[MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH];
size_t pub_key_len;