commit acb897dd97da52174f5c407549f65841b048a47a
parent e1ccd6adc5107e3186a5ef45a2a3c7095d94c873
Author: Matyja Lukas Adam <lukas.matyja@students.bfh.ch>
Date: Mon, 13 Nov 2023 08:35:22 +0100
[util] donau eddsa signatures
Diffstat:
3 files changed, 137 insertions(+), 1300 deletions(-)
diff --git a/src/include/donau_crypto_lib.h b/src/include/donau_crypto_lib.h
@@ -43,13 +43,26 @@
struct TALER_DONAU_EddsaPublicKeyP
{
/**
- * Donau uses EdDSA for online signing.
+ * Donau uses EdDSA for non-blind signing.
*/
struct GNUNET_CRYPTO_EddsaPublicKey eddsa_pub;
};
/**
+ * @brief Private key used by the donau to
+ * sign messages.
+ */
+struct TALER_DONAU_PrivateKeyP
+{
+ /**
+ * Donau uses EdDSA for non-blind signing.
+ */
+ struct GNUNET_CRYPTO_EddsaPrivateKey eddsa_priv;
+};
+
+
+/**
* Signing key for whole batches of BUDI-key-pairs. Used by a Charity.
*/
struct DONAU_CharityPublicKeyP
@@ -136,11 +149,11 @@ struct TALER_DONAU_BearerToken
};
-/* ********************* charity signing ************************** */
+/* ********************* charity eddsa signing ************************** */
/**
- * Create charity signature approving to issue a donation part.
+ * Create charity eddsa signature approving to issue a donation part.
*
* @param num_bkp number of bkps
* @param bkp to be signed
@@ -148,7 +161,7 @@ struct TALER_DONAU_BearerToken
* @param[out] charity_sig where to write the signature
*/
void
-TALER_charity_budi_key_pair_sign (
+DONAU_charity_budi_key_pair_sign (
const unsigned int num_bkp,
const struct TALER_BlindedUniqueDonationIdentifierKeyPair *bkp[static num_bkp],
const struct TALER_DONAU_CharityPrivateKeyP *charity_priv,
@@ -156,7 +169,7 @@ TALER_charity_budi_key_pair_sign (
/**
- * Verify charity signature approving to issue a donation part.
+ * Verify charity eddsa signature approving to issue a donation part.
*
* @param num_bkp number of bkps
* @param bkp array to verify
@@ -165,11 +178,52 @@ TALER_charity_budi_key_pair_sign (
* @return #GNUNET_OK if the signature is valid
*/
enum GNUNET_GenericReturnValue
-TALER_charity_budi_key_pair_verify (
+DONAU_charity_budi_key_pair_verify (
const unsigned int num_bkp,
const struct TALER_BlindedUniqueDonationIdentifierKeyPair *bkp[static num_bkp],
const struct TALER_DONAU_CharityPublicKeyP *charity_pub,
const struct TALER_CharitySignatureP *charity_sig);
+/* ********************* donau eddsa signing ************************** */
+
+
+/**
+ * Create donau eddsa signature. Another name for this
+ * is the donation statement.
+ *
+ * @param amount_tot total donated amount of @a year
+ * @param year
+ * @param i hash value, the identifier of the donor
+ * @param donau_priv private key of the donau
+ * @param[out] statement_sig where to write the signature
+ */
+void
+DONAU_donation_statement_sign (
+ const struct TALER_Amount *amount_tot,
+ const unsigned int year,
+ const struct TALER_DONAU_HashDonorTaxId *i,
+ const struct TALER_DONAU_PrivateKeyP *donau_priv,
+ struct TALER_DonauSignatureP *statement_sig);
+
+
+/**
+ * Verify donau eddsa signature/donation statement.
+ *
+ * @param amount_tot total donated amount of @a year
+ * @param year
+ * @param i hash value, the identifier of the donor
+ * @param donau_priv private key of the donau
+ * @param statement_sig signature to verify
+ * @return #GNUNET_OK if the signature is valid
+ */
+enum GNUNET_GenericReturnValue
+DONAU_donation_statement_verify (
+ const struct TALER_Amount *amount_tot,
+ const unsigned int year,
+ const struct TALER_DONAU_HashDonorTaxId *i,
+ const struct TALER_DONAU_PublicKeyP *donau_pub,
+ const TALER_DonauSignatureP *statement_sig);
+
+
#endif
diff --git a/src/util/charity_signatures.c b/src/util/charity_signatures.c
@@ -19,39 +19,26 @@
* @author Christian Grothoff
* @author Lukas Matyja
*/
+#include "taler/platform.h"
+#include "taler/taler_util.h"
#include "donau_util.h"
+#include <gnunet/gnunet_common.h>
#include <taler/taler_signatures.h>
-void
-TALER_charity_budi_key_pair_sign (
- const unsigned int num_bkp,
- const struct TALER_BlindedUniqueDonationIdentifierKeyPair *bkp[num_bkp],
- const struct TALER_DONAU_CharityPrivateKeyP *charity_priv,
- struct TALER_CharitySignatureP *charity_sig)
-{
- struct TALER_BudiKeyPairTrackPS tps = {
- .purpose.size = htonl (sizeof (bkp[0])* num_bkp),
- .purpose.purpose = htonl (TALER_SIGNATURE_MERCHANT_TRACK_TRANSACTION),
- .num_bkp = num_bkp,
- .bkp = *bkp
- };
-
- GNUNET_CRYPTO_eddsa_sign (&charity_priv->eddsa_priv,
- &tps,
- &charity_sig->eddsa_sig);
-}
-
+GNUNET_NETWORK_STRUCT_BEGIN
/**
- * @brief Format used to generate the signature on a request to obtain
- * the wire transfer identifier associated with a donation.
+ * @brief Format used to generate the charity signature on all blinded
+ * identifiers and key pairs as a agreement of the charity with the
+ * donation request from the donor.
*/
struct TALER_BudiKeyPairTrackPS
{
/**
- * Purpose must be #TALER_SIGNATURE_MERCHANT_TRACK_TRANSACTION.
+ * Purpose must be #TALER_SIGNATURE_DONAU_CHARITY_DONATION_CONFIRMATION. Signed
+ * by a `struct TALER_CharityPublicKeyP` using EdDSA.
*/
struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
@@ -67,25 +54,45 @@ struct TALER_BudiKeyPairTrackPS
struct TALER_BlindedUniqueDonationIdentifierKeyPair bkp;
};
+GNUNET_NETWORK_STRUCT_END
+
+void
+DONAU_charity_budi_key_pair_sign (
+ const unsigned int num_bkp,
+ const struct TALER_BlindedUniqueDonationIdentifierKeyPair *bkp[num_bkp],
+ const struct TALER_DONAU_CharityPrivateKeyP *charity_priv,
+ struct TALER_CharitySignatureP *charity_sig)
+{
+ struct TALER_BudiKeyPairTrackPS tps = {
+ .purpose.size = htonl (sizeof (bkp[0])* num_bkp),
+ .purpose.purpose = htonl (DONAU_SIGNATURE_CHARITY_DONATION_CONFIRMATION),
+ .num_bkp = num_bkp,
+ .bkp = *bkp
+ };
+
+ GNUNET_CRYPTO_eddsa_sign (&charity_priv->eddsa_priv,
+ &tps,
+ &charity_sig->eddsa_sig);
+}
enum GNUNET_GenericReturnValue
-TALER_charity_budi_key_pair_verify (
+DONAU_charity_budi_key_pair_verify (
const unsigned int num_bkp,
- const struct TALER_BlindedUniqueDonationIdentifierKeyPair *bkp[static num_bkp],
+ const struct DONAU_BlindedUniqueDonationIdentifierKeyPair *bkp[static num_bkp],
const struct TALER_DONAU_CharityPublicKeyP *charity_pub,
const struct TALER_CharitySignatureP *charity_sig)
{
struct TALER_BudiKeyPairTrackPS tps = {
.purpose.size = htonl (sizeof (bkp[0])* num_bkp),
- .purpose.purpose = htonl (TALER_SIGNATURE_MERCHANT_TRACK_TRANSACTION),
+ .purpose.purpose = htonl (DONAU_SIGNATURE_CHARITY_DONATION_CONFIRMATION),
.num_bkp = num_bkp,
.bkp = *bkp
};
return
- GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MERCHANT_TRACK_TRANSACTION,
+ GNUNET_CRYPTO_eddsa_verify (DONAU_SIGNATURE_CHARITY_DONATION_CONFIRMATION,
&tps,
&charity_sig->eddsa_sig,
&charity_pub->eddsa_pub);
diff --git a/src/util/donau_signatures.c b/src/util/donau_signatures.c
@@ -15,8 +15,9 @@
*/
/**
* @file donau_signatures.c
- * @brief Utility functions for Taler security module signatures
+ * @brief Utility functions for Taler donau security module signatures
* @author Christian Grothoff
+ * @author Lukas Matyja
*/
#include "taler/platform.h"
#include "taler/taler_util.h"
@@ -26,348 +27,31 @@
GNUNET_NETWORK_STRUCT_BEGIN
/**
- * @brief Format used to generate the signature on a confirmation
- * from the donau that a deposit request succeeded.
+ * @brief Format used to generate the signature/donation statement
+ * over the total amount and a donor identifier of a year.
*/
-struct TALER_DepositConfirmationPS
+struct TALER_DonationStatementConfirmationPS
{
/**
- * Purpose must be #TALER_SIGNATURE_DONAU_CONFIRM_DEPOSIT. Signed
- * by a `struct TALER_DonauPublicKeyP` using EdDSA.
+ * Purpose must be #DONAU_SIGNATURE_DONAU_DONATION_STATEMENT. Signed
+ * by a `struct TALER_DONAU_EddsaPublicKeyP` using EdDSA.
*/
struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
/**
- * Hash over the contract for which this deposit is made.
+ * Total amount donated of a specific @a year.
*/
- struct TALER_PrivateContractHashP h_contract_terms GNUNET_PACKED;
+ struct TALER_AmountNBO amount_tot;
/**
- * Hash over the wiring information of the charity.
+ * The corresponding year.
*/
- // struct TALER_CharityWireHashP h_wire GNUNET_PACKED;
+ unsigned int year;
/**
- * Hash over the optional policy extension of the deposit, 0 if there
- * was no policy.
+ * The hash of the identifier of the donor.
*/
- struct TALER_ExtensionPolicyHashP h_policy GNUNET_PACKED;
-
- /**
- * Time when this confirmation was generated / when the donau received
- * the deposit request.
- */
- struct GNUNET_TIME_TimestampNBO donau_timestamp;
-
- /**
- * By when does the donau expect to pay the charity
- * (as per the charity's request).
- */
- struct GNUNET_TIME_TimestampNBO wire_deadline;
-
- /**
- * How much time does the @e charity have to issue a refund
- * request? Zero if refunds are not allowed. After this time, the
- * coin cannot be refunded. Note that the wire transfer will not be
- * performed by the donau until the refund deadline. This value
- * is taken from the original deposit request.
- */
- struct GNUNET_TIME_TimestampNBO refund_deadline;
-
- /**
- * Amount to be deposited, excluding fee. Calculated from the
- * amount with fee and the fee from the deposit request.
- */
- struct TALER_AmountNBO amount_without_fee;
-
- /**
- * The public key of the coin that was deposited.
- */
- struct TALER_CoinSpendPublicKeyP coin_pub;
-
- /**
- * The Charity's public key. Allows the charity to later refund
- * the transaction or to inquire about the wire transfer identifier.
- */
- struct DONAU_CharityPublicKeyP charity_pub;
-
-};
-
-GNUNET_NETWORK_STRUCT_END
-
-
-enum TALER_ErrorCode
-TALER_donau_online_deposit_confirmation_sign (
- TALER_DonauSignCallback scb,
- const struct TALER_PrivateContractHashP *h_contract_terms,
- const struct TALER_CharityWireHashP *h_wire,
- const struct TALER_ExtensionPolicyHashP *h_policy,
- struct GNUNET_TIME_Timestamp donau_timestamp,
- struct GNUNET_TIME_Timestamp wire_deadline,
- struct GNUNET_TIME_Timestamp refund_deadline,
- const struct TALER_Amount *amount_without_fee,
- const struct TALER_CoinSpendPublicKeyP *coin_pub,
- const struct TALER_CharityPublicKeyP *charity_pub,
- struct TALER_DonauPublicKeyP *pub,
- struct TALER_DonauSignatureP *sig)
-{
- struct TALER_DepositConfirmationPS dcs = {
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_CONFIRM_DEPOSIT),
- .purpose.size = htonl (sizeof (struct TALER_DepositConfirmationPS)),
- .h_contract_terms = *h_contract_terms,
- .h_wire = *h_wire,
- .donau_timestamp = GNUNET_TIME_timestamp_hton (donau_timestamp),
- .wire_deadline = GNUNET_TIME_timestamp_hton (wire_deadline),
- .refund_deadline = GNUNET_TIME_timestamp_hton (refund_deadline),
- .coin_pub = *coin_pub,
- .charity_pub = *charity_pub
- };
-
- if (NULL != h_policy)
- dcs.h_policy = *h_policy;
- TALER_amount_hton (&dcs.amount_without_fee,
- amount_without_fee);
- return scb (&dcs.purpose,
- pub,
- sig);
-}
-
-
-enum GNUNET_GenericReturnValue
-TALER_donau_online_deposit_confirmation_verify (
- const struct TALER_PrivateContractHashP *h_contract_terms,
- const struct TALER_CharityWireHashP *h_wire,
- const struct TALER_ExtensionPolicyHashP *h_policy,
- struct GNUNET_TIME_Timestamp donau_timestamp,
- struct GNUNET_TIME_Timestamp wire_deadline,
- struct GNUNET_TIME_Timestamp refund_deadline,
- const struct TALER_Amount *amount_without_fee,
- const struct TALER_CoinSpendPublicKeyP *coin_pub,
- const struct TALER_CharityPublicKeyP *charity_pub,
- const struct TALER_DonauPublicKeyP *donau_pub,
- const struct TALER_DonauSignatureP *donau_sig)
-{
- struct TALER_DepositConfirmationPS dcs = {
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_CONFIRM_DEPOSIT),
- .purpose.size = htonl (sizeof (struct TALER_DepositConfirmationPS)),
- .h_contract_terms = *h_contract_terms,
- .h_wire = *h_wire,
- .donau_timestamp = GNUNET_TIME_timestamp_hton (donau_timestamp),
- .wire_deadline = GNUNET_TIME_timestamp_hton (wire_deadline),
- .refund_deadline = GNUNET_TIME_timestamp_hton (refund_deadline),
- .coin_pub = *coin_pub,
- .charity_pub = *charity_pub
- };
-
- if (NULL != h_policy)
- dcs.h_policy = *h_policy;
- TALER_amount_hton (&dcs.amount_without_fee,
- amount_without_fee);
- if (GNUNET_OK !=
- GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_DONAU_CONFIRM_DEPOSIT,
- &dcs,
- &donau_sig->eddsa_signature,
- &donau_pub->eddsa_pub))
- {
- GNUNET_break_op (0);
- return GNUNET_SYSERR;
- }
- return GNUNET_OK;
-}
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * @brief Signature made by the donau over the full set of keys, used
- * to detect cheating donaus that give out different sets to
- * different users.
- */
-struct TALER_DonauKeySetPS
-{
-
- /**
- * Purpose is #TALER_SIGNATURE_DONAU_KEY_SET. Signed
- * by a `struct TALER_DonauPublicKeyP` using EdDSA.
- */
- struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
-
- /**
- * Time of the key set issue.
- */
- struct GNUNET_TIME_TimestampNBO list_issue_date;
-
- /**
- * Hash over the various denomination signing keys returned.
- */
- struct GNUNET_HashCode hc GNUNET_PACKED;
-};
-
-GNUNET_NETWORK_STRUCT_END
-
-enum TALER_ErrorCode
-TALER_donau_online_key_set_sign (
- TALER_DonauSignCallback2 scb,
- void *cls,
- struct GNUNET_TIME_Timestamp timestamp,
- const struct GNUNET_HashCode *hc,
- struct TALER_DonauPublicKeyP *pub,
- struct TALER_DonauSignatureP *sig)
-{
- struct TALER_DonauKeySetPS ks = {
- .purpose.size = htonl (sizeof (ks)),
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_KEY_SET),
- .list_issue_date = GNUNET_TIME_timestamp_hton (timestamp),
- .hc = *hc
- };
-
- return scb (cls,
- &ks.purpose,
- pub,
- sig);
-}
-
-
-enum GNUNET_GenericReturnValue
-TALER_donau_online_key_set_verify (
- struct GNUNET_TIME_Timestamp timestamp,
- const struct GNUNET_HashCode *hc,
- const struct TALER_DonauPublicKeyP *pub,
- const struct TALER_DonauSignatureP *sig)
-{
- struct TALER_DonauKeySetPS ks = {
- .purpose.size = htonl (sizeof (ks)),
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_KEY_SET),
- .list_issue_date = GNUNET_TIME_timestamp_hton (timestamp),
- .hc = *hc
- };
-
- return
- GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_DONAU_KEY_SET,
- &ks,
- &sig->eddsa_signature,
- &pub->eddsa_pub);
-}
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * @brief Signature by which an donau affirms that an account
- * successfully passed the KYC checks.
- */
-struct TALER_DonauAccountSetupSuccessPS
-{
- /**
- * Purpose is #TALER_SIGNATURE_DONAU_ACCOUNT_SETUP_SUCCESS. Signed by a
- * `struct TALER_DonauPublicKeyP` using EdDSA.
- */
- struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
-
- /**
- * Hash over the payto for which the signature was made.
- */
- struct TALER_PaytoHashP h_payto;
-
- /**
- * Hash over details on *which* KYC obligations were discharged!
- */
- struct GNUNET_HashCode h_kyc;
-
- /**
- * When was the signature made.
- */
- struct GNUNET_TIME_TimestampNBO timestamp;
-
-};
-
-GNUNET_NETWORK_STRUCT_END
-
-
-enum TALER_ErrorCode
-TALER_donau_online_account_setup_success_sign (
- TALER_DonauSignCallback scb,
- const struct TALER_PaytoHashP *h_payto,
- const json_t *kyc,
- struct GNUNET_TIME_Timestamp timestamp,
- struct TALER_DonauPublicKeyP *pub,
- struct TALER_DonauSignatureP *sig)
-{
- struct TALER_DonauAccountSetupSuccessPS kyc_purpose = {
- .purpose.size = htonl (sizeof (kyc_purpose)),
- .purpose.purpose = htonl (
- TALER_SIGNATURE_DONAU_ACCOUNT_SETUP_SUCCESS),
- .h_payto = *h_payto,
- .timestamp = GNUNET_TIME_timestamp_hton (timestamp)
- };
-
- TALER_json_hash (kyc,
- &kyc_purpose.h_kyc);
- return scb (&kyc_purpose.purpose,
- pub,
- sig);
-}
-
-
-enum GNUNET_GenericReturnValue
-TALER_donau_online_account_setup_success_verify (
- const struct TALER_PaytoHashP *h_payto,
- const json_t *kyc,
- struct GNUNET_TIME_Timestamp timestamp,
- const struct TALER_DonauPublicKeyP *pub,
- const struct TALER_DonauSignatureP *sig)
-{
- struct TALER_DonauAccountSetupSuccessPS kyc_purpose = {
- .purpose.size = htonl (sizeof (kyc_purpose)),
- .purpose.purpose = htonl (
- TALER_SIGNATURE_DONAU_ACCOUNT_SETUP_SUCCESS),
- .h_payto = *h_payto,
- .timestamp = GNUNET_TIME_timestamp_hton (timestamp)
- };
-
- TALER_json_hash (kyc,
- &kyc_purpose.h_kyc);
- return
- GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_DONAU_ACCOUNT_SETUP_SUCCESS,
- &kyc_purpose,
- &sig->eddsa_signature,
- &pub->eddsa_pub);
-}
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * @brief Format internally used for packing the detailed information
- * to generate the signature for /track/transfer signatures.
- */
-struct TALER_WireDepositDetailP
-{
-
- /**
- * Hash of the contract
- */
- struct TALER_PrivateContractHashP h_contract_terms;
-
- /**
- * Time when the wire transfer was performed by the donau.
- */
- struct GNUNET_TIME_TimestampNBO execution_time;
-
- /**
- * Coin's public key.
- */
- struct TALER_CoinSpendPublicKeyP coin_pub;
-
- /**
- * Total value of the coin.
- */
- struct TALER_AmountNBO deposit_value;
-
- /**
- * Fees charged by the donau for the deposit.
- */
- struct TALER_AmountNBO deposit_fee;
+ struct TALER_DONAU_HashDonorTaxId i;
};
@@ -375,956 +59,48 @@ GNUNET_NETWORK_STRUCT_END
void
-TALER_donau_online_wire_deposit_append (
- struct GNUNET_HashContext *hash_context,
- const struct TALER_PrivateContractHashP *h_contract_terms,
- struct GNUNET_TIME_Timestamp execution_time,
- const struct TALER_CoinSpendPublicKeyP *coin_pub,
- const struct TALER_Amount *deposit_value,
- const struct TALER_Amount *deposit_fee)
-{
- struct TALER_WireDepositDetailP dd = {
- .h_contract_terms = *h_contract_terms,
- .execution_time = GNUNET_TIME_timestamp_hton (execution_time),
- .coin_pub = *coin_pub
- };
- TALER_amount_hton (&dd.deposit_value,
- deposit_value);
- TALER_amount_hton (&dd.deposit_fee,
- deposit_fee);
- GNUNET_CRYPTO_hash_context_read (hash_context,
- &dd,
- sizeof (dd));
-}
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * @brief Format used to generate the signature for /wire/deposit
- * replies.
- */
-struct TALER_WireDepositDataPS
-{
- /**
- * Purpose header for the signature over the contract with
- * purpose #TALER_SIGNATURE_DONAU_CONFIRM_WIRE_DEPOSIT.
- */
- struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
-
- /**
- * Total amount that was transferred.
- */
- struct TALER_AmountNBO total;
-
- /**
- * Wire fee that was charged.
- */
- struct TALER_AmountNBO wire_fee;
-
- /**
- * Public key of the charity (for all aggregated transactions).
- */
- struct TALER_CharityPublicKeyP charity_pub;
-
- /**
- * Hash of bank account of the charity.
- */
- struct TALER_PaytoHashP h_payto;
-
- /**
- * Hash of the individual deposits that were aggregated,
- * each in the format of a `struct TALER_WireDepositDetailP`.
- */
- struct GNUNET_HashCode h_details;
-
-};
-
-GNUNET_NETWORK_STRUCT_END
-
-
-enum TALER_ErrorCode
-TALER_donau_online_wire_deposit_sign (
- TALER_DonauSignCallback scb,
- const struct TALER_Amount *total,
- const struct TALER_Amount *wire_fee,
- const struct TALER_CharityPublicKeyP *charity_pub,
- const char *payto,
- const struct GNUNET_HashCode *h_details,
- struct TALER_DonauPublicKeyP *pub,
- struct TALER_DonauSignatureP *sig)
-{
- struct TALER_WireDepositDataPS wdp = {
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_CONFIRM_WIRE_DEPOSIT),
- .purpose.size = htonl (sizeof (wdp)),
- .charity_pub = *charity_pub,
- .h_details = *h_details
- };
-
- TALER_amount_hton (&wdp.total,
- total);
- TALER_amount_hton (&wdp.wire_fee,
- wire_fee);
- TALER_payto_hash (payto,
- &wdp.h_payto);
- return scb (&wdp.purpose,
- pub,
- sig);
-}
-
-
-enum GNUNET_GenericReturnValue
-TALER_donau_online_wire_deposit_verify (
- const struct TALER_Amount *total,
- const struct TALER_Amount *wire_fee,
- const struct TALER_CharityPublicKeyP *charity_pub,
- const struct TALER_PaytoHashP *h_payto,
- const struct GNUNET_HashCode *h_details,
- const struct TALER_DonauPublicKeyP *pub,
- const struct TALER_DonauSignatureP *sig)
-{
- struct TALER_WireDepositDataPS wdp = {
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_CONFIRM_WIRE_DEPOSIT),
- .purpose.size = htonl (sizeof (wdp)),
- .charity_pub = *charity_pub,
- .h_details = *h_details,
- .h_payto = *h_payto
- };
-
- TALER_amount_hton (&wdp.total,
- total);
- TALER_amount_hton (&wdp.wire_fee,
- wire_fee);
- return
- GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_DONAU_CONFIRM_WIRE_DEPOSIT,
- &wdp,
- &sig->eddsa_signature,
- &pub->eddsa_pub);
-}
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * Details affirmed by the donau about a wire transfer the donau
- * claims to have done with respect to a deposit operation.
- */
-struct TALER_ConfirmWirePS
-{
- /**
- * Purpose header for the signature over the contract with
- * purpose #TALER_SIGNATURE_DONAU_CONFIRM_WIRE.
- */
- struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
-
- /**
- * Hash over the wiring information of the charity.
- */
- struct TALER_CharityWireHashP h_wire GNUNET_PACKED;
-
- /**
- * Hash over the contract for which this deposit is made.
- */
- struct TALER_PrivateContractHashP h_contract_terms GNUNET_PACKED;
-
- /**
- * Raw value (binary encoding) of the wire transfer subject.
- */
- struct TALER_WireTransferIdentifierRawP wtid;
-
- /**
- * The coin's public key. This is the value that must have been
- * signed (blindly) by the Donau.
- */
- struct TALER_CoinSpendPublicKeyP coin_pub;
-
- /**
- * When did the donau execute this transfer? Note that the
- * timestamp may not be exactly the same on the wire, i.e.
- * because the wire has a different timezone or resolution.
- */
- struct GNUNET_TIME_TimestampNBO execution_time;
-
- /**
- * The contribution of @e coin_pub to the total transfer volume.
- * This is the value of the deposit minus the fee.
- */
- struct TALER_AmountNBO coin_contribution;
-
-};
-
-GNUNET_NETWORK_STRUCT_END
-
-
-enum TALER_ErrorCode
-TALER_donau_online_confirm_wire_sign (
- TALER_DonauSignCallback scb,
- const struct TALER_CharityWireHashP *h_wire,
- const struct TALER_PrivateContractHashP *h_contract_terms,
- const struct TALER_WireTransferIdentifierRawP *wtid,
- const struct TALER_CoinSpendPublicKeyP *coin_pub,
- struct GNUNET_TIME_Timestamp execution_time,
- const struct TALER_Amount *coin_contribution,
- struct TALER_DonauPublicKeyP *pub,
- struct TALER_DonauSignatureP *sig)
-
-{
- struct TALER_ConfirmWirePS cw = {
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_CONFIRM_WIRE),
- .purpose.size = htonl (sizeof (cw)),
- .h_wire = *h_wire,
- .h_contract_terms = *h_contract_terms,
- .wtid = *wtid,
- .coin_pub = *coin_pub,
- .execution_time = GNUNET_TIME_timestamp_hton (execution_time)
- };
-
- TALER_amount_hton (&cw.coin_contribution,
- coin_contribution);
- return scb (&cw.purpose,
- pub,
- sig);
-}
-
-
-enum GNUNET_GenericReturnValue
-TALER_donau_online_confirm_wire_verify (
- const struct TALER_CharityWireHashP *h_wire,
- const struct TALER_PrivateContractHashP *h_contract_terms,
- const struct TALER_WireTransferIdentifierRawP *wtid,
- const struct TALER_CoinSpendPublicKeyP *coin_pub,
- struct GNUNET_TIME_Timestamp execution_time,
- const struct TALER_Amount *coin_contribution,
- const struct TALER_DonauPublicKeyP *pub,
- const struct TALER_DonauSignatureP *sig)
-{
- struct TALER_ConfirmWirePS cw = {
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_CONFIRM_WIRE),
- .purpose.size = htonl (sizeof (cw)),
- .h_wire = *h_wire,
- .h_contract_terms = *h_contract_terms,
- .wtid = *wtid,
- .coin_pub = *coin_pub,
- .execution_time = GNUNET_TIME_timestamp_hton (execution_time)
- };
-
- TALER_amount_hton (&cw.coin_contribution,
- coin_contribution);
- return
- GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_DONAU_CONFIRM_WIRE,
- &cw,
- &sig->eddsa_signature,
- &pub->eddsa_pub);
-}
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * Response by which the donau affirms that it does not
- * currently know a denomination by the given hash.
- */
-struct TALER_DenominationUnknownAffirmationPS
-{
-
- /**
- * Purpose is #TALER_SIGNATURE_DONAU_AFFIRM_DENOM_UNKNOWN
- */
- struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
-
- /**
- * When did the donau sign this message.
- */
- struct GNUNET_TIME_TimestampNBO timestamp;
-
- /**
- * Hash of the public denomination key we do not know.
- */
- struct TALER_DenominationHashP h_denom_pub;
-};
-
-GNUNET_NETWORK_STRUCT_END
-
-
-enum TALER_ErrorCode
-TALER_donau_online_denomination_unknown_sign (
- TALER_DonauSignCallback scb,
- struct GNUNET_TIME_Timestamp timestamp,
- const struct TALER_DenominationHashP *h_denom_pub,
- struct TALER_DonauPublicKeyP *pub,
- struct TALER_DonauSignatureP *sig)
-{
- struct TALER_DenominationUnknownAffirmationPS dua = {
- .purpose.size = htonl (sizeof (dua)),
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_AFFIRM_DENOM_UNKNOWN),
- .timestamp = GNUNET_TIME_timestamp_hton (timestamp),
- .h_denom_pub = *h_denom_pub,
- };
-
- return scb (&dua.purpose,
- pub,
- sig);
-}
-
-
-enum GNUNET_GenericReturnValue
-TALER_donau_online_denomination_unknown_verify (
- struct GNUNET_TIME_Timestamp timestamp,
- const struct TALER_DenominationHashP *h_denom_pub,
- const struct TALER_DonauPublicKeyP *pub,
- const struct TALER_DonauSignatureP *sig)
-{
- struct TALER_DenominationUnknownAffirmationPS dua = {
- .purpose.size = htonl (sizeof (dua)),
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_AFFIRM_DENOM_UNKNOWN),
- .timestamp = GNUNET_TIME_timestamp_hton (timestamp),
- .h_denom_pub = *h_denom_pub,
- };
-
- return
- GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_DONAU_AFFIRM_DENOM_UNKNOWN,
- &dua,
- &sig->eddsa_signature,
- &pub->eddsa_pub);
-}
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * Response by which the donau affirms that it does not
- * currently consider the given denomination to be valid
- * for the requested operation.
- */
-struct TALER_DenominationExpiredAffirmationPS
-{
-
- /**
- * Purpose is #TALER_SIGNATURE_DONAU_AFFIRM_DENOM_EXPIRED
- */
- struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
-
- /**
- * When did the donau sign this message.
- */
- struct GNUNET_TIME_TimestampNBO timestamp;
-
- /**
- * Name of the operation that is not allowed at this time. Might NOT be 0-terminated, but is padded with 0s.
- */
- char operation[8];
-
- /**
- * Hash of the public denomination key we do not know.
- */
- struct TALER_DenominationHashP h_denom_pub;
-
-};
-
-GNUNET_NETWORK_STRUCT_END
-
-
-enum TALER_ErrorCode
-TALER_donau_online_denomination_expired_sign (
- TALER_DonauSignCallback scb,
- struct GNUNET_TIME_Timestamp timestamp,
- const struct TALER_DenominationHashP *h_denom_pub,
- const char *op,
- struct TALER_DonauPublicKeyP *pub,
- struct TALER_DonauSignatureP *sig)
-{
- struct TALER_DenominationExpiredAffirmationPS dua = {
- .purpose.size = htonl (sizeof (dua)),
- .purpose.purpose = htonl (
- TALER_SIGNATURE_DONAU_AFFIRM_DENOM_EXPIRED),
- .timestamp = GNUNET_TIME_timestamp_hton (timestamp),
- .h_denom_pub = *h_denom_pub,
- };
-
- /* strncpy would create a compiler warning */
- GNUNET_memcpy (dua.operation,
- op,
- GNUNET_MIN (sizeof (dua.operation),
- strlen (op)));
- return scb (&dua.purpose,
- pub,
- sig);
-}
-
-
-enum GNUNET_GenericReturnValue
-TALER_donau_online_denomination_expired_verify (
- struct GNUNET_TIME_Timestamp timestamp,
- const struct TALER_DenominationHashP *h_denom_pub,
- const char *op,
- const struct TALER_DonauPublicKeyP *pub,
- const struct TALER_DonauSignatureP *sig)
-{
- struct TALER_DenominationExpiredAffirmationPS dua = {
- .purpose.size = htonl (sizeof (dua)),
- .purpose.purpose = htonl (
- TALER_SIGNATURE_DONAU_AFFIRM_DENOM_EXPIRED),
- .timestamp = GNUNET_TIME_timestamp_hton (timestamp),
- .h_denom_pub = *h_denom_pub,
- };
-
- /* strncpy would create a compiler warning */
- GNUNET_memcpy (dua.operation,
- op,
- GNUNET_MIN (sizeof (dua.operation),
- strlen (op)));
- return
- GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_DONAU_AFFIRM_DENOM_EXPIRED,
- &dua,
- &sig->eddsa_signature,
- &pub->eddsa_pub);
-}
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * Response by which the donau affirms that it has
- * closed a reserve and send back the funds.
- */
-struct TALER_ReserveCloseConfirmationPS
-{
-
- /**
- * Purpose is #TALER_SIGNATURE_DONAU_RESERVE_CLOSED
- */
- struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
-
- /**
- * When did the donau initiate the wire transfer.
- */
- struct GNUNET_TIME_TimestampNBO timestamp;
-
- /**
- * How much did the donau send?
- */
- struct TALER_AmountNBO closing_amount;
-
- /**
- * How much did the donau charge for closing the reserve?
- */
- struct TALER_AmountNBO closing_fee;
-
- /**
- * Public key of the reserve that was closed.
- */
- struct TALER_ReservePublicKeyP reserve_pub;
-
- /**
- * Hash of the receiver's bank account.
- */
- struct TALER_PaytoHashP h_payto;
-
- /**
- * Wire transfer subject.
- */
- struct TALER_WireTransferIdentifierRawP wtid;
-};
-
-GNUNET_NETWORK_STRUCT_END
-
-
-enum TALER_ErrorCode
-TALER_donau_online_reserve_closed_sign (
- TALER_DonauSignCallback scb,
- struct GNUNET_TIME_Timestamp timestamp,
- const struct TALER_Amount *closing_amount,
- const struct TALER_Amount *closing_fee,
- const char *payto,
- const struct TALER_WireTransferIdentifierRawP *wtid,
- const struct TALER_ReservePublicKeyP *reserve_pub,
- struct TALER_DonauPublicKeyP *pub,
- struct TALER_DonauSignatureP *sig)
-{
- struct TALER_ReserveCloseConfirmationPS rcc = {
- .purpose.size = htonl (sizeof (rcc)),
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_RESERVE_CLOSED),
- .wtid = *wtid,
- .reserve_pub = *reserve_pub,
- .timestamp = GNUNET_TIME_timestamp_hton (timestamp)
- };
-
- TALER_amount_hton (&rcc.closing_amount,
- closing_amount);
- TALER_amount_hton (&rcc.closing_fee,
- closing_fee);
- TALER_payto_hash (payto,
- &rcc.h_payto);
- return scb (&rcc.purpose,
- pub,
- sig);
-}
-
-
-enum GNUNET_GenericReturnValue
-TALER_donau_online_reserve_closed_verify (
- struct GNUNET_TIME_Timestamp timestamp,
- const struct TALER_Amount *closing_amount,
- const struct TALER_Amount *closing_fee,
- const char *payto,
- const struct TALER_WireTransferIdentifierRawP *wtid,
- const struct TALER_ReservePublicKeyP *reserve_pub,
- const struct TALER_DonauPublicKeyP *pub,
- const struct TALER_DonauSignatureP *sig)
-{
- struct TALER_ReserveCloseConfirmationPS rcc = {
- .purpose.size = htonl (sizeof (rcc)),
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_RESERVE_CLOSED),
- .wtid = *wtid,
- .reserve_pub = *reserve_pub,
- .timestamp = GNUNET_TIME_timestamp_hton (timestamp)
- };
-
- TALER_amount_hton (&rcc.closing_amount,
- closing_amount);
- TALER_amount_hton (&rcc.closing_fee,
- closing_fee);
- TALER_payto_hash (payto,
- &rcc.h_payto);
- return
- GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_DONAU_RESERVE_CLOSED,
- &rcc,
- &sig->eddsa_signature,
- &pub->eddsa_pub);
-}
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * Response by which the donau affirms that it has
- * received funds deposited into a purse.
- */
-struct TALER_PurseCreateDepositConfirmationPS
-{
-
- /**
- * Purpose is #TALER_SIGNATURE_DONAU_CONFIRM_PURSE_CREATION
- */
- struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
-
- /**
- * When did the donau receive the deposits.
- */
- struct GNUNET_TIME_TimestampNBO donau_time;
-
- /**
- * When will the purse expire?
- */
- struct GNUNET_TIME_TimestampNBO purse_expiration;
-
- /**
- * How much should the purse ultimately contain.
- */
- struct TALER_AmountNBO amount_without_fee;
-
- /**
- * How much was deposited so far.
- */
- struct TALER_AmountNBO total_deposited;
-
- /**
- * Public key of the purse.
- */
- struct TALER_PurseContractPublicKeyP purse_pub;
-
- /**
- * Hash of the contract of the purse.
- */
- struct TALER_PrivateContractHashP h_contract_terms;
-
-};
-
-GNUNET_NETWORK_STRUCT_END
-
-
-enum TALER_ErrorCode
-TALER_donau_online_purse_created_sign (
- TALER_DonauSignCallback scb,
- struct GNUNET_TIME_Timestamp donau_time,
- struct GNUNET_TIME_Timestamp purse_expiration,
- const struct TALER_Amount *amount_without_fee,
- const struct TALER_Amount *total_deposited,
- const struct TALER_PurseContractPublicKeyP *purse_pub,
- const struct TALER_PrivateContractHashP *h_contract_terms,
- struct TALER_DonauPublicKeyP *pub,
- struct TALER_DonauSignatureP *sig)
+DONAU_donation_statement_sign (
+ const struct TALER_Amount *amount_tot,
+ const unsigned int year,
+ const struct TALER_DONAU_HashDonorTaxId *i,
+ const struct TALER_DONAU_PrivateKeyP *donau_priv,
+ struct TALER_DonauSignatureP *statement_sig)
{
- struct TALER_PurseCreateDepositConfirmationPS dc = {
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_CONFIRM_PURSE_CREATION),
- .purpose.size = htonl (sizeof (dc)),
- .h_contract_terms = *h_contract_terms,
- .purse_pub = *purse_pub,
- .purse_expiration = GNUNET_TIME_timestamp_hton (purse_expiration),
- .donau_time = GNUNET_TIME_timestamp_hton (donau_time)
+ struct TALER_DonationStatementConfirmationPS tps = {
+ .purpose.size = htonl (sizeof (struct TALER_DonationStatementConfirmationPS)),
+ .purpose.purpose = htonl (DONAU_SIGNATURE_DONAU_DONATION_STATEMENT),
+ .amount_tot = *amount_tot,
+ .year = year,
+ .i = *i
};
- TALER_amount_hton (&dc.amount_without_fee,
- amount_without_fee);
- TALER_amount_hton (&dc.total_deposited,
- total_deposited);
- return scb (&dc.purpose,
- pub,
- sig);
+ GNUNET_CRYPTO_eddsa_sign (&donau_priv->eddsa_priv,
+ &tps,
+ &statement_sig->eddsa_sig);
}
enum GNUNET_GenericReturnValue
-TALER_donau_online_purse_created_verify (
- struct GNUNET_TIME_Timestamp donau_time,
- struct GNUNET_TIME_Timestamp purse_expiration,
- const struct TALER_Amount *amount_without_fee,
- const struct TALER_Amount *total_deposited,
- const struct TALER_PurseContractPublicKeyP *purse_pub,
- const struct TALER_PrivateContractHashP *h_contract_terms,
- const struct TALER_DonauPublicKeyP *pub,
- const struct TALER_DonauSignatureP *sig)
+DONAU_donation_statement_verify (
+ const struct TALER_Amount *amount_tot,
+ const unsigned int year,
+ const struct TALER_DONAU_HashDonorTaxId *i,
+ const struct TALER_DONAU_PublicKeyP *donau_pub,
+ const TALER_DonauSignatureP *statement_sig)
{
- struct TALER_PurseCreateDepositConfirmationPS dc = {
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_CONFIRM_PURSE_CREATION),
- .purpose.size = htonl (sizeof (dc)),
- .h_contract_terms = *h_contract_terms,
- .purse_pub = *purse_pub,
- .purse_expiration = GNUNET_TIME_timestamp_hton (purse_expiration),
- .donau_time = GNUNET_TIME_timestamp_hton (donau_time)
+ struct TALER_DonationStatementConfirmationPS tps = {
+ .purpose.size = htonl (sizeof (struct TALER_DonationStatementConfirmationPS)),
+ .purpose.purpose = htonl (DONAU_SIGNATURE_DONAU_DONATION_STATEMENT),
+ .amount_tot = *amount_tot,
+ .year = year,
+ .i = *i
};
- TALER_amount_hton (&dc.amount_without_fee,
- amount_without_fee);
- TALER_amount_hton (&dc.total_deposited,
- total_deposited);
return
- GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_DONAU_CONFIRM_PURSE_CREATION,
- &dc,
- &sig->eddsa_signature,
- &pub->eddsa_pub);
+ GNUNET_CRYPTO_eddsa_verify (DONAU_SIGNATURE_DONAU_DONATION_STATEMENT,
+ &tps,
+ &statement_sig->eddsa_sig,
+ &donau_pub->eddsa_pub);
}
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-
-
-GNUNET_NETWORK_STRUCT_END
-
-
-
-
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * Response by which the donau affirms that it has
- * merged a purse into a reserve.
- */
-struct TALER_PurseMergedConfirmationPS
-{
-
- /**
- * Purpose is #TALER_SIGNATURE_DONAU_CONFIRM_PURSE_MERGED
- */
- struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
-
- /**
- * When did the donau receive the deposits.
- */
- struct GNUNET_TIME_TimestampNBO donau_time;
-
- /**
- * When will the purse expire?
- */
- struct GNUNET_TIME_TimestampNBO purse_expiration;
-
- /**
- * How much should the purse ultimately contain.
- */
- struct TALER_AmountNBO amount_without_fee;
-
- /**
- * Public key of the purse.
- */
- struct TALER_PurseContractPublicKeyP purse_pub;
-
- /**
- * Public key of the reserve.
- */
- struct TALER_ReservePublicKeyP reserve_pub;
-
- /**
- * Hash of the contract of the purse.
- */
- struct TALER_PrivateContractHashP h_contract_terms;
-
- /**
- * Hash of the provider URL hosting the reserve.
- */
- struct GNUNET_HashCode h_provider_url;
-
-};
-
-GNUNET_NETWORK_STRUCT_END
-
-
-enum TALER_ErrorCode
-TALER_donau_online_purse_merged_sign (
- TALER_DonauSignCallback scb,
- struct GNUNET_TIME_Timestamp donau_time,
- struct GNUNET_TIME_Timestamp purse_expiration,
- const struct TALER_Amount *amount_without_fee,
- const struct TALER_PurseContractPublicKeyP *purse_pub,
- const struct TALER_PrivateContractHashP *h_contract_terms,
- const struct TALER_ReservePublicKeyP *reserve_pub,
- const char *donau_url,
- struct TALER_DonauPublicKeyP *pub,
- struct TALER_DonauSignatureP *sig)
-{
- struct TALER_PurseMergedConfirmationPS dc = {
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_CONFIRM_PURSE_MERGED),
- .purpose.size = htonl (sizeof (dc)),
- .h_contract_terms = *h_contract_terms,
- .purse_pub = *purse_pub,
- .reserve_pub = *reserve_pub,
- .purse_expiration = GNUNET_TIME_timestamp_hton (purse_expiration),
- .donau_time = GNUNET_TIME_timestamp_hton (donau_time)
- };
-
- TALER_amount_hton (&dc.amount_without_fee,
- amount_without_fee);
- GNUNET_CRYPTO_hash (donau_url,
- strlen (donau_url) + 1,
- &dc.h_provider_url);
- return scb (&dc.purpose,
- pub,
- sig);
-}
-
-
-enum GNUNET_GenericReturnValue
-TALER_donau_online_purse_merged_verify (
- struct GNUNET_TIME_Timestamp donau_time,
- struct GNUNET_TIME_Timestamp purse_expiration,
- const struct TALER_Amount *amount_without_fee,
- const struct TALER_PurseContractPublicKeyP *purse_pub,
- const struct TALER_PrivateContractHashP *h_contract_terms,
- const struct TALER_ReservePublicKeyP *reserve_pub,
- const char *donau_url,
- const struct TALER_DonauPublicKeyP *pub,
- const struct TALER_DonauSignatureP *sig)
-{
- struct TALER_PurseMergedConfirmationPS dc = {
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_CONFIRM_PURSE_MERGED),
- .purpose.size = htonl (sizeof (dc)),
- .h_contract_terms = *h_contract_terms,
- .purse_pub = *purse_pub,
- .reserve_pub = *reserve_pub,
- .purse_expiration = GNUNET_TIME_timestamp_hton (purse_expiration),
- .donau_time = GNUNET_TIME_timestamp_hton (donau_time)
- };
-
- TALER_amount_hton (&dc.amount_without_fee,
- amount_without_fee);
- GNUNET_CRYPTO_hash (donau_url,
- strlen (donau_url) + 1,
- &dc.h_provider_url);
- return
- GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_DONAU_CONFIRM_PURSE_MERGED,
- &dc,
- &sig->eddsa_signature,
- &pub->eddsa_pub);
-}
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * @brief Format used to generate the signature on a purse status
- * from the donau.
- */
-struct TALER_PurseStatusPS
-{
- /**
- * Purpose must be #TALER_SIGNATURE_DONAU_PURSE_STATUS. Signed
- * by a `struct TALER_DonauPublicKeyP` using EdDSA.
- */
- struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
-
- /**
- * Time when the purse was merged, possibly 'never'.
- */
- struct GNUNET_TIME_TimestampNBO merge_timestamp;
-
- /**
- * Time when the purse was deposited last, possibly 'never'.
- */
- struct GNUNET_TIME_TimestampNBO deposit_timestamp;
-
- /**
- * Amount deposited in total in the purse without fees.
- * May be possibly less than the target amount.
- */
- struct TALER_AmountNBO balance;
-
-};
-
-GNUNET_NETWORK_STRUCT_END
-
-
-enum TALER_ErrorCode
-TALER_donau_online_purse_status_sign (
- TALER_DonauSignCallback scb,
- struct GNUNET_TIME_Timestamp merge_timestamp,
- struct GNUNET_TIME_Timestamp deposit_timestamp,
- const struct TALER_Amount *balance,
- struct TALER_DonauPublicKeyP *pub,
- struct TALER_DonauSignatureP *sig)
-{
- struct TALER_PurseStatusPS dcs = {
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_PURSE_STATUS),
- .purpose.size = htonl (sizeof (dcs)),
- .merge_timestamp = GNUNET_TIME_timestamp_hton (merge_timestamp),
- .deposit_timestamp = GNUNET_TIME_timestamp_hton (deposit_timestamp)
- };
-
- TALER_amount_hton (&dcs.balance,
- balance);
- return scb (&dcs.purpose,
- pub,
- sig);
-}
-
-
-enum GNUNET_GenericReturnValue
-TALER_donau_online_purse_status_verify (
- struct GNUNET_TIME_Timestamp merge_timestamp,
- struct GNUNET_TIME_Timestamp deposit_timestamp,
- const struct TALER_Amount *balance,
- const struct TALER_DonauPublicKeyP *donau_pub,
- const struct TALER_DonauSignatureP *donau_sig)
-{
- struct TALER_PurseStatusPS dcs = {
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_PURSE_STATUS),
- .purpose.size = htonl (sizeof (dcs)),
- .merge_timestamp = GNUNET_TIME_timestamp_hton (merge_timestamp),
- .deposit_timestamp = GNUNET_TIME_timestamp_hton (deposit_timestamp)
- };
-
- TALER_amount_hton (&dcs.balance,
- balance);
- if (GNUNET_OK !=
- GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_DONAU_PURSE_STATUS,
- &dcs,
- &donau_sig->eddsa_signature,
- &donau_pub->eddsa_pub))
- {
- GNUNET_break_op (0);
- return GNUNET_SYSERR;
- }
- return GNUNET_OK;
-}
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * Message signed by the donau to affirm that the
- * owner of a reserve has certain attributes.
- */
-struct TALER_DonauAttestPS
-{
-
- /**
- * Purpose is #TALER_SIGNATURE_DONAU_RESERVE_ATTEST_DETAILS
- */
- struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
-
- /**
- * Time when the attestation was made.
- */
- struct GNUNET_TIME_TimestampNBO attest_timestamp;
-
- /**
- * Time when the attestation expires.
- */
- struct GNUNET_TIME_TimestampNBO expiration_time;
-
- /**
- * Public key of the reserve for which the attributes
- * are attested.
- */
- struct TALER_ReservePublicKeyP reserve_pub;
-
- /**
- * Hash over the attributes.
- */
- struct GNUNET_HashCode h_attributes;
-
-};
-
-GNUNET_NETWORK_STRUCT_END
-
-
-enum TALER_ErrorCode
-TALER_donau_online_reserve_attest_details_sign (
- TALER_DonauSignCallback scb,
- struct GNUNET_TIME_Timestamp attest_timestamp,
- struct GNUNET_TIME_Timestamp expiration_time,
- const struct TALER_ReservePublicKeyP *reserve_pub,
- const json_t *attributes,
- struct TALER_DonauPublicKeyP *pub,
- struct TALER_DonauSignatureP *sig)
-{
- struct TALER_DonauAttestPS rap = {
- .purpose.size = htonl (sizeof (rap)),
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_RESERVE_ATTEST_DETAILS),
- .attest_timestamp = GNUNET_TIME_timestamp_hton (attest_timestamp),
- .expiration_time = GNUNET_TIME_timestamp_hton (expiration_time),
- .reserve_pub = *reserve_pub
- };
-
- TALER_json_hash (attributes,
- &rap.h_attributes);
- return scb (&rap.purpose,
- pub,
- sig);
-}
-
-
-enum GNUNET_GenericReturnValue
-TALER_donau_online_reserve_attest_details_verify (
- struct GNUNET_TIME_Timestamp attest_timestamp,
- struct GNUNET_TIME_Timestamp expiration_time,
- const struct TALER_ReservePublicKeyP *reserve_pub,
- const json_t *attributes,
- struct TALER_DonauPublicKeyP *pub,
- struct TALER_DonauSignatureP *sig)
-{
- struct TALER_DonauAttestPS rap = {
- .purpose.size = htonl (sizeof (rap)),
- .purpose.purpose = htonl (TALER_SIGNATURE_DONAU_RESERVE_ATTEST_DETAILS),
- .attest_timestamp = GNUNET_TIME_timestamp_hton (attest_timestamp),
- .expiration_time = GNUNET_TIME_timestamp_hton (expiration_time),
- .reserve_pub = *reserve_pub
- };
-
- TALER_json_hash (attributes,
- &rap.h_attributes);
- if (GNUNET_OK !=
- GNUNET_CRYPTO_eddsa_verify (
- TALER_SIGNATURE_DONAU_RESERVE_ATTEST_DETAILS,
- &rap,
- &sig->eddsa_signature,
- &pub->eddsa_pub))
- {
- GNUNET_break_op (0);
- return GNUNET_SYSERR;
- }
- return GNUNET_OK;
-}
-
-
/* end of donau_signatures.c */
