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fix mapping of auditor sigs to DKs, avoid one hash operation by caching hash value

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This commit is contained in:
Christian Grothoff 2017-09-26 15:05:27 +02:00
parent d36a2008e8
commit a0d410e01b
No known key found for this signature in database
GPG Key ID: 939E6BE1E29FC3CC
4 changed files with 17 additions and 10 deletions
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7
src/auditor/taler-auditor-sign.c
View File

@ -341,9 +341,10 @@ main (int argc,
kv.denom_hash = dk->denom_hash;
/* Finally sign ... */
GNUNET_CRYPTO_eddsa_sign (eddsa_priv,
&kv.purpose,
&sigs[i].eddsa_sig);
GNUNET_assert (GNUNET_OK ==
GNUNET_CRYPTO_eddsa_sign (eddsa_priv,
&kv.purpose,
&sigs[i].eddsa_sig));
}
if (NULL == output_file)

1
src/exchange-lib/exchange_api_handle.c
View File

@ -472,6 +472,7 @@ parse_json_auditor (struct TALER_EXCHANGE_AuditorInformation *auditor,
TALER_amount_hton (&kv.fee_refund,
&dk->fee_refund);
kv.denom_hash = dk->h_key;
if (GNUNET_OK !=
GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_AUDITOR_EXCHANGE_KEYS,
&kv.purpose,

17
src/exchange/taler-exchange-httpd_keystate.c
View File

@ -99,6 +99,11 @@ struct DenominationKeyEntry
*/
struct AuditorSignature *as_tail;
/**
* Hash of the public denomination key.
*/
struct GNUNET_HashCode denom_key_hash;
};
@ -898,7 +903,7 @@ reload_auditor_iter (void *cls,
if (0 !=
memcmp (dki,
&dke->dki->issue.properties,
&dke->dki[i].issue.properties,
sizeof (struct TALER_DenominationKeyValidityPS)))
continue;
as = GNUNET_malloc (sizeof (struct AuditorSignature) +
@ -937,6 +942,7 @@ initialize_denomkey_array (void *cls,
struct ResponseFactoryContext *rfc = cls;
struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki = value;
rfc->denomkey_array[rfc->denomkey_array_length].denom_key_hash = *denom_hash;
rfc->denomkey_array[rfc->denomkey_array_length++].dki = dki;
return GNUNET_OK;
}
@ -1175,12 +1181,11 @@ build_keys_response (const struct ResponseFactoryContext *rfc,
/* Add denomination key to the response */
const struct DenominationKeyEntry *dke
= &rfc->denomkey_array[i];
struct GNUNET_HashCode denom_key_hash;
const struct GNUNET_HashCode *denom_key_hash
= &dke->denom_key_hash;
GNUNET_CRYPTO_rsa_public_key_hash (dke->dki->denom_pub.rsa_public_key,
&denom_key_hash);
GNUNET_CRYPTO_hash_context_read (rbc.hash_context,
&denom_key_hash,
denom_key_hash,
sizeof (struct GNUNET_HashCode));
if (0 !=
json_array_append_new (rbc.denom_keys_array,
@ -1221,7 +1226,7 @@ build_keys_response (const struct ResponseFactoryContext *rfc,
json_array_append_new (ae->ar,
json_pack ("{s:o, s:o}",
"denom_pub_h",
GNUNET_JSON_from_data_auto (&denom_key_hash),
GNUNET_JSON_from_data_auto (denom_key_hash),
"auditor_sig",
GNUNET_JSON_from_data_auto (&as->asig))));
}

2
src/include/taler_signatures.h
View File

@ -793,7 +793,7 @@ struct TALER_ExchangeKeyValidityPS
struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
/**
* Hash of the auditor's URL.
* Hash of the auditor's URL (including 0-terminator).
*/
struct GNUNET_HashCode auditor_url_hash;