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check payback signatures in auditor

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This commit is contained in:
Christian Grothoff 2017-04-04 17:05:38 +02:00
parent 4b5efa4e81
commit 930101256e
No known key found for this signature in database
GPG Key ID: 939E6BE1E29FC3CC
1 changed files with 25 additions and 2 deletions
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27
src/auditor/taler-auditor.c
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@ -827,13 +827,36 @@ handle_payback_by_reserve (void *cls,
struct GNUNET_HashCode key;
struct ReserveSummary *rs;
struct GNUNET_TIME_Absolute expiry;
struct TALER_PaybackRequestPS pr;
/* should be monotonically increasing */
GNUNET_assert (rowid >= pp.last_reserve_payback_serial_id);
pp.last_reserve_payback_serial_id = rowid + 1;
/* TODO: check that coin signature on payback request is valid
and/or that the coin was eligible for payback! #3887!*/
if (GNUNET_OK !=
TALER_test_coin_valid (coin))
{
report_row_inconsistency ("payback",
rowid,
"coin denomination signature invalid");
}
pr.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_PAYBACK);
pr.purpose.size = htonl (sizeof (pr));
pr.coin_pub = coin->coin_pub;
GNUNET_CRYPTO_rsa_public_key_hash (coin->denom_pub.rsa_public_key,
&pr.h_denom_pub);
pr.coin_blind = *coin_blind;
if (GNUNET_OK !=
GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_PAYBACK,
&pr.purpose,
&coin_sig->eddsa_signature,
&coin->coin_pub.eddsa_pub))
{
report_row_inconsistency ("payback",
rowid,
"coin payback signature invalid");
}
/* TODO: check that the coin was eligible for payback! #3887!*/
GNUNET_CRYPTO_hash (reserve_pub,
sizeof (*reserve_pub),