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pk_wrap: fix comment in ecdsa_verify_wrap

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Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
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Valerio Setti
2023-02-02 15:10:32 +01:00
parent b761b15f06
commit 5c032b5e1b
1 changed files with 5 additions and 3 deletions
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8
library/pk_wrap.c
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@@ -689,9 +689,11 @@ static int ecdsa_verify_wrap(void *ctx_arg, mbedtls_md_type_t md_alg,
mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT; mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
psa_status_t status; psa_status_t status;
size_t key_len; size_t key_len;
/* This buffer contains first the public key (consisting of two public /* This buffer will initially contain the public key and then the signature
* points plus a header byte), then the signature (consisting of two * but at different points in time. For all curves except secp224k1, which
* public points). Size it for the public key which is one byte larger. */ * is not currently supported in PSA, the public key is one byte longer
* (header byte + 2 numbers, while the signature is only 2 numbers),
* so use that as the buffer size. */
unsigned char buf[MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH]; unsigned char buf[MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH];
unsigned char *p; unsigned char *p;
psa_algorithm_t psa_sig_md = PSA_ALG_ECDSA_ANY; psa_algorithm_t psa_sig_md = PSA_ALG_ECDSA_ANY;