commit dc30ef2ae7ba4c4169ce6a8da3d7af81b3612913
parent 36932835eb7ae1e6a9c8e04822845ff23957409d
Author: Matyja Lukas Adam <lukas.matyja@students.bfh.ch>
Date: Sun, 7 Jan 2024 12:45:55 +0100
[lib] work on API Keys implementation
Diffstat:
4 files changed, 150 insertions(+), 283 deletions(-)
diff --git a/src/include/donau_crypto_lib.h b/src/include/donau_crypto_lib.h
@@ -118,6 +118,36 @@ struct DONAU_DonationUnitHashP
};
/**
+ * Compare two donation unit public keys.
+ *
+ * @param donation_unit1 first key
+ * @param donation_unit2 second key
+ * @return 0 if the keys are equal, otherwise -1 or 1
+ */
+int
+DONAU_donation_unit_pub_cmp (const struct DONAU_DonationUnitPublicKey *donation_unit1,
+ const struct DONAU_DonationUnitPublicKey *donation_unit2);
+
+/**
+ * Make a (deep) copy of the given @a donation_unit_src to
+ * @a donation_unit_dst.
+ *
+ * @param[out] donation_unit_dst target to copy to
+ * @param donation_unit_src public key to copy
+ */
+void
+DONAU_donation_unit_pub_deep_copy (struct DONAU_DonationUnitPublicKey *donation_unit_dst,
+ const struct DONAU_DonationUnitPublicKey *donation_unit_src);
+
+/**
+ * Free internals of @a donation_unit_pub, but not @a donation_unit_pub itself.
+ *
+ * @param[in] donation_unit_pub key to free
+ */
+void
+DONAU_donation_unit_pub_free (struct DONAU_DonationUnitPublicKey *donation_unit_pub);
+
+/**
* Donor's hashed and salted unique donation identifier.
*/
struct DONAU_HashDonorTaxId
@@ -332,7 +362,7 @@ TALER_donation_unit_group_get_key (
* The corresponding JSON-blob will also contain an array of particular
* donation units with only the cipher-specific public key.
*/
-struct TALER_DonationUnitGroup
+struct DONAU_DonationUnitGroup
{
/**
diff --git a/src/include/donau_service.h b/src/include/donau_service.h
@@ -380,11 +380,11 @@ DONAU_keys_decref (struct DONAU_Keys *keys);
* @param year given year
* @return #GNUNET_OK if @a pub is (according to /keys and @a year) the corresponding signing key
*/
-enum GNUNET_GenericReturnValue
-DONAU_test_signing_key (
- const struct DONAU_Keys *keys,
- const unsigned int year,
- const struct DONAU_EddsaPublicKeyP *pub);
+// enum GNUNET_GenericReturnValue
+// DONAU_test_signing_key ( // always current revocation not yet supported
+// const struct DONAU_Keys *keys,
+// const unsigned int year,
+// const struct DONAU_EddsaPublicKeyP *pub);
/**
diff --git a/src/lib/donau_api_handle.c b/src/lib/donau_api_handle.c
@@ -96,7 +96,7 @@ struct DONAU_GetKeysHandle
/**
* Previous /keys response, NULL for none.
*/
- struct DONAU_Keys *prev_keys;
+ struct DONAU_Keys *prev_keys; // not used, as keys are always completely reloaded
/**
* Entry for this request with the `struct GNUNET_CURL_Context`.
@@ -107,7 +107,7 @@ struct DONAU_GetKeysHandle
* Expiration time according to "Expire:" header.
* 0 if not provided by the server.
*/
- struct GNUNET_TIME_Timestamp expire;
+ struct GNUNET_TIME_Timestamp expire; // not used -> no expiration, always 0
/**
* Function to call with the donau's certification data,
@@ -160,6 +160,37 @@ parse_json_signkey (struct DONAU_SigningPublicKeyAndValidity *sign_key,
}
/**
+ * Compare two donation unit keys.
+ *
+ * @param donation_unit1 first donation unit key
+ * @param donation_unit2 second donation unit key
+ * @return 0 if the two keys are equal (not necessarily
+ * the same object), 1 otherwise.
+ */
+static unsigned int
+donation_units_cmp (const struct DONAU_DonationUnitInformation *donation_unit1,
+ const struct DONAU_DonationUnitInformation *donation_unit2)
+{
+ struct DONAU_DonationUnitInformation tmp1;
+ struct DONAU_DonationUnitInformation tmp2;
+
+ if (0 !=
+ DONAU_donation_unit_pub_cmp (&donation_unit1->key,
+ &donation_unit2->key))
+ return 1;
+ tmp1 = *donation_unit1;
+ tmp2 = *donation_unit2;
+ memset (&tmp1.key,
+ 0,
+ sizeof (tmp1.key));
+ memset (&tmp2.key,
+ 0,
+ sizeof (tmp2.key));
+ return GNUNET_memcmp (&tmp1,
+ &tmp2);
+}
+
+/**
* Decode the JSON in @a resp_obj from the /keys response
* and store the data in the @a key_data.
*
@@ -319,7 +350,7 @@ decode_keys_json (const json_t *resp_obj,
{
/* First, parse { cipher, value, hash } of the current
group. */
- struct TALER_DonationUnitGroup group = {0};
+ struct DONAU_DonationUnitGroup group = {0};
const json_t *donation_unit_keys_array;
struct GNUNET_JSON_Specification group_spec[] = {
TALER_JSON_spec_denomination_group (NULL, // TODO: check method
@@ -353,7 +384,7 @@ decode_keys_json (const json_t *resp_obj,
bool found = false;
struct GNUNET_JSON_Specification kspec[] = {
- TALER_JSON_spec_denom_pub_cipher (NULL,
+ TALER_JSON_spec_denom_pub_cipher (NULL, // TODO write new JSON function
group.cipher,
&dk->key),
GNUNET_JSON_spec_end ()
@@ -372,7 +403,7 @@ decode_keys_json (const json_t *resp_obj,
j<key_data->num_donation_unit_keys;
j++)
{
- if (0 == GNUNET_CRYPTO_bsign_pub_cmp (&dk,
+ if (0 == donation_units_cmp (&dk.key,
&key_data->donation_unit_keys[j]))
{
found = true;
@@ -384,7 +415,7 @@ decode_keys_json (const json_t *resp_obj,
{
/* 0:0:0 did not support /keys cherry picking */
TALER_LOG_DEBUG ("Skipping donation unit key: already know it\n");
- TALER_denom_pub_free (&dk.key);
+ DONAU_donation_unit_pub_free (&dk.key);
continue;
}
@@ -392,7 +423,7 @@ decode_keys_json (const json_t *resp_obj,
GNUNET_array_grow (key_data->donation_unit_keys,
key_data->donation_unit_keys_size,
key_data->donation_unit_keys_size * 2 + 2);
- key_data->denom_keys[key_data->num_donation_unit_keys++] = dk;
+ key_data->donation_unit_keys[key_data->num_donation_unit_keys++] = dk;
/* Update "last_denom_issue_date" */
TALER_LOG_DEBUG ("Adding donation unit key that is valid for the year %d\n",
@@ -427,7 +458,7 @@ keys_completed_cb (void *cls,
struct DONAU_GetKeysHandle *gkh = cls;
const json_t *j = resp_obj;
struct DONAU_Keys *kd = NULL;
- struct DONAU_KeysResponse kresp = { // ??
+ struct DONAU_KeysResponse kresp = {
.hr.reply = j,
.hr.http_status = (unsigned int) response_code,
.details.ok.compat = DONAU_VC_PROTOCOL_ERROR,
@@ -435,20 +466,9 @@ keys_completed_cb (void *cls,
gkh->job = NULL;
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Received keys from URL `%s' with status %ld and expiration %s.\n",
+ "Received keys from URL `%s' with status %ld.\n",
gkh->url,
- response_code,
- GNUNET_TIME_timestamp2s (gkh->expire));
- if (GNUNET_TIME_absolute_is_past (gkh->expire.abs_time))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Donau failed to give expiration time, assuming in %s\n",
- GNUNET_TIME_relative2s (DEFAULT_EXPIRATION,
- true));
- gkh->expire
- = GNUNET_TIME_absolute_to_timestamp (
- GNUNET_TIME_relative_to_absolute (DEFAULT_EXPIRATION));
- }
+ response_code);
switch (response_code)
{
case 0:
@@ -465,50 +485,7 @@ keys_completed_cb (void *cls,
}
kd = GNUNET_new (struct DONAU_Keys);
kd->donau_url = GNUNET_strdup (gkh->donau_url);
- if (NULL != gkh->prev_keys)
- {
- const struct DONAU_Keys *kd_old = gkh->prev_keys;
-
- /* We keep the donation unit keys and auditor signatures from the
- previous iteration (/keys cherry picking) */
- kd->num_denom_keys
- = kd_old->num_denom_keys;
- kd->last_denom_issue_date
- = kd_old->last_denom_issue_date;
- GNUNET_array_grow (kd->denom_keys,
- kd->denom_keys_size,
- kd->num_denom_keys);
- /* First make a shallow copy, we then need another pass for the RSA key... */
- GNUNET_memcpy (kd->denom_keys,
- kd_old->denom_keys,
- kd_old->num_denom_keys
- * sizeof (struct DONAU_DonationUnitInformation));
- for (unsigned int i = 0; i<kd_old->num_denom_keys; i++)
- TALER_denom_pub_deep_copy (&kd->denom_keys[i].key,
- &kd_old->denom_keys[i].key);
- kd->num_auditors = kd_old->num_auditors;
- kd->auditors = GNUNET_new_array (kd->num_auditors,
- struct DONAU_AuditorInformation);
- /* Now the necessary deep copy... */
- for (unsigned int i = 0; i<kd_old->num_auditors; i++)
- {
- const struct DONAU_AuditorInformation *aold =
- &kd_old->auditors[i];
- struct DONAU_AuditorInformation *anew = &kd->auditors[i];
-
- anew->auditor_pub = aold->auditor_pub;
- anew->auditor_url = GNUNET_strdup (aold->auditor_url);
- GNUNET_array_grow (anew->denom_keys,
- anew->num_denom_keys,
- aold->num_denom_keys);
- GNUNET_memcpy (
- anew->denom_keys,
- aold->denom_keys,
- aold->num_denom_keys
- * sizeof (struct DONAU_AuditorDenominationInfo));
- }
- }
- /* Now decode fresh /keys response */
+
if (GNUNET_OK !=
decode_keys_json (j,
true,
@@ -524,19 +501,6 @@ keys_completed_cb (void *cls,
break;
}
kd->rc = 1;
- kd->key_data_expiration = gkh->expire;
- if (GNUNET_TIME_relative_cmp (
- GNUNET_TIME_absolute_get_remaining (gkh->expire.abs_time),
- <,
- MINIMUM_EXPIRATION))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Donau returned keys with expiration time below %s. Compensating.\n",
- GNUNET_TIME_relative2s (MINIMUM_EXPIRATION,
- true));
- kd->key_data_expiration
- = GNUNET_TIME_relative_to_timestamp (MINIMUM_EXPIRATION);
- }
kresp.details.ok.keys = kd;
break;
@@ -580,108 +544,6 @@ keys_completed_cb (void *cls,
/**
- * Define a max length for the HTTP "Expire:" header
- */
-#define MAX_DATE_LINE_LEN 32
-
-
-/**
- * Parse HTTP timestamp.
- *
- * @param dateline header to parse header
- * @param[out] at where to write the result
- * @return #GNUNET_OK on success
- */
-static enum GNUNET_GenericReturnValue
-parse_date_string (const char *dateline,
- struct GNUNET_TIME_Timestamp *at)
-{
- static const char *MONTHS[] =
- { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
- "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", NULL };
- int year;
- int mon;
- int day;
- int hour;
- int min;
- int sec;
- char month[4];
- struct tm tm;
- time_t t;
-
- /* We recognize the three formats in RFC2616, section 3.3.1. Month
- names are always in English. The formats are:
- Sun, 06 Nov 1994 08:49:37 GMT ; RFC 822, updated by RFC 1123
- Sunday, 06-Nov-94 08:49:37 GMT ; RFC 850, obsoleted by RFC 1036
- Sun Nov 6 08:49:37 1994 ; ANSI C's asctime() format
- Note that the first is preferred.
- */
-
- if (strlen (dateline) > MAX_DATE_LINE_LEN)
- {
- GNUNET_break_op (0);
- return GNUNET_SYSERR;
- }
- while (*dateline == ' ')
- ++dateline;
- while (*dateline && *dateline != ' ')
- ++dateline;
- while (*dateline == ' ')
- ++dateline;
- /* We just skipped over the day of the week. Now we have:*/
- if ( (sscanf (dateline,
- "%d %3s %d %d:%d:%d",
- &day, month, &year, &hour, &min, &sec) != 6) &&
- (sscanf (dateline,
- "%d-%3s-%d %d:%d:%d",
- &day, month, &year, &hour, &min, &sec) != 6) &&
- (sscanf (dateline,
- "%3s %d %d:%d:%d %d",
- month, &day, &hour, &min, &sec, &year) != 6) )
- {
- GNUNET_break (0);
- return GNUNET_SYSERR;
- }
- /* Two digit dates are defined to be relative to 1900; all other dates
- * are supposed to be represented as four digits. */
- if (year < 100)
- year += 1900;
-
- for (mon = 0; ; mon++)
- {
- if (! MONTHS[mon])
- {
- GNUNET_break_op (0);
- return GNUNET_SYSERR;
- }
- if (0 == strcasecmp (month,
- MONTHS[mon]))
- break;
- }
-
- memset (&tm, 0, sizeof(tm));
- tm.tm_year = year - 1900;
- tm.tm_mon = mon;
- tm.tm_mday = day;
- tm.tm_hour = hour;
- tm.tm_min = min;
- tm.tm_sec = sec;
-
- t = mktime (&tm);
- if (((time_t) -1) == t)
- {
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR,
- "mktime");
- return GNUNET_SYSERR;
- }
- if (t < 0)
- t = 0; /* can happen due to timezone issues if date was 1.1.1970 */
- *at = GNUNET_TIME_timestamp_from_s (t);
- return GNUNET_OK;
-}
-
-
-/**
* Function called for each header in the HTTP /keys response.
* Finds the "Expire:" header and parses it, storing the result
* in the "expire" field of the keys request.
@@ -714,16 +576,16 @@ header_cb (char *buffer,
"Found %s header `%s'\n",
MHD_HTTP_HEADER_EXPIRES,
val);
- if (GNUNET_OK !=
- parse_date_string (val,
- &kr->expire))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Failed to parse %s-header `%s'\n",
- MHD_HTTP_HEADER_EXPIRES,
- val);
- kr->expire = GNUNET_TIME_UNIT_ZERO_TS;
- }
+ // if (GNUNET_OK !=
+ // parse_date_string (val,
+ // &kr->expire))
+ // {
+ // GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ // "Failed to parse %s-header `%s'\n",
+ // MHD_HTTP_HEADER_EXPIRES,
+ // val);
+ // kr->expire = GNUNET_TIME_UNIT_ZERO_TS;
+ // }
GNUNET_free (val);
return total;
}
@@ -768,10 +630,10 @@ DONAU_get_keys (
curl_easy_setopt (eh,
CURLOPT_TIMEOUT,
120 /* seconds */));
- GNUNET_assert (CURLE_OK ==
- curl_easy_setopt (eh,
- CURLOPT_HEADERFUNCTION,
- &header_cb));
+ // GNUNET_assert (CURLE_OK ==
+ // curl_easy_setopt (eh,
+ // CURLOPT_HEADERFUNCTION,
+ // &header_cb));
GNUNET_assert (CURLE_OK ==
curl_easy_setopt (eh,
CURLOPT_HEADERDATA,
@@ -800,46 +662,16 @@ DONAU_get_keys_cancel (
}
-enum GNUNET_GenericReturnValue
-DONAU_test_signing_key (
- const struct DONAU_Keys *keys,
- const struct DONAU_DonauPublicKeyP *pub)
-{
- struct GNUNET_TIME_Absolute now;
-
- /* we will check using a tolerance of 1h for the time */
- now = GNUNET_TIME_absolute_get ();
- for (unsigned int i = 0; i<keys->num_sign_keys; i++)
- if ( (GNUNET_TIME_absolute_cmp (
- keys->sign_keys[i].valid_from.abs_time,
- <=,
- GNUNET_TIME_absolute_add (now,
- LIFETIME_TOLERANCE))) &&
- (GNUNET_TIME_absolute_cmp (
- keys->sign_keys[i].valid_until.abs_time,
- >,
- GNUNET_TIME_absolute_subtract (now,
- LIFETIME_TOLERANCE))) &&
- (0 == GNUNET_memcmp (pub,
- &keys->sign_keys[i].key)) )
- return GNUNET_OK;
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Signing key not valid at time %s\n",
- GNUNET_TIME_absolute2s (now));
- return GNUNET_SYSERR;
-}
-
-
const struct DONAU_DonationUnitInformation *
DONAU_get_donation_unit_key (
const struct DONAU_Keys *keys,
- const struct TALER_DenominationPublicKey *pk)
+ const struct DONAU_DonationUnitPublicKey *pk)
{
- for (unsigned int i = 0; i<keys->num_denom_keys; i++)
+ for (unsigned int i = 0; i<keys->num_donation_unit_keys; i++)
if (0 ==
- TALER_denom_pub_cmp (pk,
- &keys->denom_keys[i].key))
- return &keys->denom_keys[i];
+ DONAU_donation_unit_pub_cmp (pk,
+ &keys->donation_unit_keys[i].key))
+ return &keys->donation_unit_keys[i];
return NULL;
}
@@ -852,7 +684,7 @@ DONAU_copy_donation_unit_key (
copy = GNUNET_new (struct DONAU_DonationUnitInformation);
*copy = *key;
- TALER_denom_pub_deep_copy (©->key,
+ DONAU_donation_unit_pub_deep_copy (©->key, // only increments rc, still same pointer
&key->key);
return copy;
}
@@ -862,7 +694,7 @@ void
DONAU_destroy_donation_unit_key (
struct DONAU_DonationUnitInformation *key)
{
- TALER_denom_pub_free (&key->key);
+ DONAU_donation_unit_pub_free (&key->key);
GNUNET_free (key);
}
@@ -870,12 +702,13 @@ DONAU_destroy_donation_unit_key (
const struct DONAU_DonationUnitInformation *
DONAU_get_donation_unit_key_by_hash (
const struct DONAU_Keys *keys,
- const struct TALER_DenominationHashP *hc)
+ const struct DONAU_DonationUnitHashP *hc)
{
- for (unsigned int i = 0; i<keys->num_denom_keys; i++)
- if (0 == GNUNET_memcmp (hc,
- &keys->denom_keys[i].h_key))
- return &keys->denom_keys[i];
+ for (unsigned int i = 0; i<keys->num_donation_unit_keys; i++)
+ // memcmp needs two pointer of the same type
+ if (0 == GNUNET_memcmp (&hc->hash,
+ &keys->donation_unit_keys[i].key.bsign_pub_key.pub_key_hash))
+ return &keys->donation_unit_keys[i];
return NULL;
}
@@ -901,35 +734,14 @@ DONAU_keys_decref (struct DONAU_Keys *keys)
GNUNET_array_grow (keys->sign_keys,
keys->num_sign_keys,
0);
- for (unsigned int i = 0; i<keys->num_denom_keys; i++)
- TALER_denom_pub_free (&keys->denom_keys[i].key);
+ for (unsigned int i = 0; i<keys->num_donation_unit_keys; i++)
+ DONAU_donation_unit_pub_free (&keys->donation_unit_keys[i].key);
- GNUNET_array_grow (keys->denom_keys,
- keys->denom_keys_size,
- 0);
- for (unsigned int i = 0; i<keys->num_auditors; i++)
- {
- GNUNET_array_grow (keys->auditors[i].denom_keys,
- keys->auditors[i].num_denom_keys,
- 0);
- GNUNET_free (keys->auditors[i].auditor_url);
- }
- GNUNET_array_grow (keys->auditors,
- keys->auditors_size,
- 0);
- DONAU_free_accounts (keys->accounts_len,
- keys->accounts);
- GNUNET_array_grow (keys->accounts,
- keys->accounts_len,
+ GNUNET_array_grow (keys->donation_unit_keys,
+ keys->donation_unit_keys_size,
0);
- free_fees (keys->fees,
- keys->fees_len);
- json_decref (keys->extensions);
- GNUNET_free (keys->wallet_balance_limit_without_kyc);
GNUNET_free (keys->version);
GNUNET_free (keys->currency);
- GNUNET_free (keys->asset_type);
- GNUNET_free (keys->global_fees);
GNUNET_free (keys->donau_url);
GNUNET_free (keys);
}
@@ -941,8 +753,6 @@ DONAU_keys_from_json (const json_t *j)
const json_t *jkeys;
const char *url;
uint32_t version;
- struct GNUNET_TIME_Timestamp expire
- = GNUNET_TIME_UNIT_ZERO_TS;
struct GNUNET_JSON_Specification spec[] = {
GNUNET_JSON_spec_uint32 ("version",
&version),
@@ -950,10 +760,6 @@ DONAU_keys_from_json (const json_t *j)
&jkeys),
GNUNET_JSON_spec_string ("donau_url",
&url),
- GNUNET_JSON_spec_mark_optional (
- GNUNET_JSON_spec_timestamp ("expire",
- &expire),
- NULL),
GNUNET_JSON_spec_end ()
};
struct DONAU_Keys *keys;
@@ -984,7 +790,6 @@ DONAU_keys_from_json (const json_t *j)
return NULL;
}
keys->rc = 1;
- keys->key_data_expiration = expire;
keys->donau_url = GNUNET_strdup (url);
return keys;
}
@@ -1153,7 +958,7 @@ DONAU_keys_to_json (const struct DONAU_Keys *kd)
false);
for (unsigned int i = 0; i<kd->num_donation_unit_keys; i++)
{
- const struct DONAU_DonationUnitInformation *dk = &kd->denom_keys[i];
+ const struct DONAU_DonationUnitInformation *dk = &kd->donation_unit_keys[i];
struct TALER_DenominationGroup meta = {
.cipher = dk->key.cipher,
.value = dk->value,
@@ -1236,20 +1041,20 @@ DONAU_keys_to_json (const struct DONAU_Keys *kd)
adenoms = json_array ();
GNUNET_assert (NULL != adenoms);
- for (unsigned int j = 0; j<ai->num_denom_keys; j++)
+ for (unsigned int j = 0; j<ai->num_donation_unit_keys; j++)
{
const struct TALER_DONAU_AuditorDenominationInfo *adi =
- &ai->denom_keys[j];
+ &ai->donation_unit_keys[j];
const struct DONAU_DonationUnitInformation *dk =
- &kd->denom_keys[adi->denom_key_offset];
+ &kd->donation_unit_keys[adi->denom_key_offset];
json_t *k;
- GNUNET_assert (adi->denom_key_offset < kd->num_denom_keys);
+ GNUNET_assert (adi->denom_key_offset < kd->num_donation_unit_keys);
if (GNUNET_TIME_timestamp_cmp (now,
>,
dk->expire_deposit))
continue; /* skip auditor signatures for donation unit keys that have expired */
- GNUNET_assert (adi->denom_key_offset < kd->num_denom_keys);
+ GNUNET_assert (adi->denom_key_offset < kd->num_donation_unit_keys);
k = GNUNET_JSON_PACK (
GNUNET_JSON_pack_data_auto ("denom_pub_h",
&dk->h_key),
@@ -1378,10 +1183,10 @@ DONAU_keys_to_json (const struct DONAU_Keys *kd)
recoup = json_array ();
GNUNET_assert (NULL != recoup);
- for (unsigned int i = 0; i<kd->num_denom_keys; i++)
+ for (unsigned int i = 0; i<kd->num_donation_unit_keys; i++)
{
const struct DONAU_DonationUnitInformation *dk
- = &kd->denom_keys[i];
+ = &kd->donation_unit_keys[i];
if (! dk->revoked)
continue;
GNUNET_assert (0 ==
diff --git a/src/util/donau_crypto.c b/src/util/donau_crypto.c
@@ -31,7 +31,7 @@ GNUNET_NETWORK_STRUCT_BEGIN
struct DonationUnitGroupP
{
/**
- * Value of coins in this denomination group.
+ * Value of coins in this donation unit group.
*/
struct TALER_AmountNBO value;
@@ -60,3 +60,34 @@ TALER_donation_unit_group_get_key (
key);
}
+int
+DONAU_donation_unit_pub_cmp (const struct DONAU_DonationUnitPublicKey *donation_unit1,
+ const struct DONAU_DonationUnitPublicKey *donation_unit2)
+{
+ if (donation_unit1->bsign_pub_key->cipher !=
+ donation_unit2->bsign_pub_key->cipher)
+ return (donation_unit1->bsign_pub_key->cipher >
+ donation_unit2->bsign_pub_key->cipher) ? 1 : -1;
+ if (donation_unit1->age_mask.bits != donation_unit2->age_mask.bits)
+ return (donation_unit1->age_mask.bits > donation_unit2->age_mask.bits) ? 1 : -1;
+ return GNUNET_CRYPTO_bsign_pub_cmp (donation_unit1->bsign_pub_key,
+ donation_unit2->bsign_pub_key);
+}
+
+void
+DONAU_donation_unit_pub_deep_copy (struct DONAU_DonationUnitPublicKey *donation_unit_dst,
+ const struct DONAU_DonationUnitPublicKey *donation_unit_src)
+{
+ donation_unit_dst->bsign_pub_key
+ = GNUNET_CRYPTO_bsign_pub_incref (donation_unit_src->bsign_pub_key);
+}
+
+void
+DONAU_donation_unit_pub_free (struct DONAU_DonationUnitPublicKey *donation_unit_pub)
+{
+ if (NULL != donation_unit_pub->bsign_pub_key)
+ {
+ GNUNET_CRYPTO_blind_sign_pub_decref (donation_unit_pub->bsign_pub_key);
+ donation_unit_pub->bsign_pub_key = NULL;
+ }
+}
+\ No newline at end of file
