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DPP: Verify that crypto_ec_point_to_bin() succeeds

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This is testing code, but it's better to check the return value
explicitly even if this were not really able to fail in practice.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2022-05-08 00:31:25 +03:00
parent a8c3199527
commit 2227c85a94
1 changed files with 1 additions and 3 deletions
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4
src/common/dpp_crypto.c
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@ -2472,11 +2472,9 @@ retry:
/* Retrieve public key coordinates */ /* Retrieve public key coordinates */
pub_key = crypto_ec_key_get_public_key(key); pub_key = crypto_ec_key_get_public_key(key);
if (!pub_key) if (!pub_key || crypto_ec_point_to_bin(ec, pub_key, x, y))
goto fail; goto fail;
crypto_ec_point_to_bin(ec, pub_key, x, y);
/* And corrupt them */ /* And corrupt them */
y[curve->prime_len - 1] ^= 0x01; y[curve->prime_len - 1] ^= 0x01;
p = crypto_ec_point_from_bin(ec, x); p = crypto_ec_point_from_bin(ec, x);