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Merge pull request #2445 from JacobBarthelmeh/SanityChecks

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sanity check on resulting ecc size
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toddouska
2019-10-11 10:53:20 -07:00
committed by GitHub
parent fabc6596b3 03967d62f4
commit cd934a95a4
1 changed files with 1 additions and 1 deletions
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wolfcrypt/src/ecc.c
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@ -3592,7 +3592,7 @@ static int wc_ecc_shared_secret_gen_sync(ecc_key* private_key, ecc_point* point,
private_key->heap); private_key->heap);
if (err == MP_OKAY) { if (err == MP_OKAY) {
x = mp_unsigned_bin_size(curve->prime); x = mp_unsigned_bin_size(curve->prime);
if (*outlen < x) { if (*outlen < x || (int)x < mp_unsigned_bin_size(result->x)) {
err = BUFFER_E; err = BUFFER_E;
} }
} }