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crypto: Add a function to get the ECDH prime length

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crypto_ecdh_prime_len() can now be used to fetch the length (in octets)
of the prime used in ECDH.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
This commit is contained in:
Ilan Peer 2020-02-24 11:14:31 +02:00 committed by Jouni Malinen
parent e8ae97aebe
commit 94773d40fa
3 changed files with 13 additions and 0 deletions
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1
src/crypto/crypto.h
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@ -916,5 +916,6 @@ struct wpabuf * crypto_ecdh_get_pubkey(struct crypto_ecdh *ecdh, int inc_y);
struct wpabuf * crypto_ecdh_set_peerkey(struct crypto_ecdh *ecdh, int inc_y, struct wpabuf * crypto_ecdh_set_peerkey(struct crypto_ecdh *ecdh, int inc_y,
const u8 *key, size_t len); const u8 *key, size_t len);
void crypto_ecdh_deinit(struct crypto_ecdh *ecdh); void crypto_ecdh_deinit(struct crypto_ecdh *ecdh);
size_t crypto_ecdh_prime_len(struct crypto_ecdh *ecdh);
#endif /* CRYPTO_H */ #endif /* CRYPTO_H */

6
src/crypto/crypto_openssl.c
View file

@ -2168,4 +2168,10 @@ void crypto_ecdh_deinit(struct crypto_ecdh *ecdh)
} }
} }
size_t crypto_ecdh_prime_len(struct crypto_ecdh *ecdh)
{
return crypto_ec_prime_len(ecdh->ec);
}
#endif /* CONFIG_ECC */ #endif /* CONFIG_ECC */

6
src/crypto/crypto_wolfssl.c
View file

@ -1834,4 +1834,10 @@ fail:
goto done; goto done;
} }
size_t crypto_ecdh_prime_len(struct crypto_ecdh *ecdh)
{
return crypto_ec_prime_len(ecdh->ec);
}
#endif /* CONFIG_ECC */ #endif /* CONFIG_ECC */