diff options
| -rw-r--r-- | src/include/taler_exchange_service.h | 102 |
1 files changed, 52 insertions, 50 deletions
diff --git a/src/include/taler_exchange_service.h b/src/include/taler_exchange_service.h index 92ff3bf14..6e8c1531c 100644 --- a/src/include/taler_exchange_service.h +++ b/src/include/taler_exchange_service.h @@ -1384,6 +1384,11 @@ struct TALER_EXCHANGE_WithdrawResponse struct { /** + * Private key of the coin. + */ + struct TALER_CoinSpendPrivateKeyP coin_priv; + + /** * Signature over the coin. */ struct TALER_DenominationSignature sig; @@ -1541,50 +1546,45 @@ TALER_EXCHANGE_withdraw2_cancel (struct TALER_EXCHANGE_Withdraw2Handle *wh); /** - * Melt (partially spent) coins to obtain fresh coins that are - * unlinkable to the original coin(s). Note that melting more - * than one coin in a single request will make those coins linkable, - * so the safest operation only melts one coin at a time. - * - * This API is typically used by a wallet. Note that to ensure that - * no money is lost in case of hardware failures, is operation does - * not actually initiate the request. Instead, it generates a buffer - * which the caller must store before proceeding with the actual call - * to #TALER_EXCHANGE_melt() that will generate the request. - * - * This function does verify that the given request data is internally - * consistent. However, the @a melts_sigs are NOT verified. - * - * Aside from some non-trivial cryptographic operations that might - * take a bit of CPU time to complete, this function returns - * its result immediately and does not start any asynchronous - * processing. This function is also thread-safe. - * - * @param melt_priv private keys of the coin to melt - * @param melt_amount amount specifying how much - * the coin will contribute to the melt (including fee) - * @param melt_sig signatures affirming the - * validity of the public keys corresponding to the - * @a melt_priv private key - * @param melt_pk denomination key information - * record corresponding to the @a melt_sig - * validity of the keys - * @param fresh_pks_len length of the @a pks array - * @param fresh_pks array of @a pks_len denominations of fresh coins to create - * @return NULL - * if the inputs are invalid (i.e. denomination key not with this exchange). - * Otherwise, JSON data structure to store persistently - * before proceeding to #TALER_EXCHANGE_melt(). - * Non-null results should be freed using GNUNET_free(). + * Information needed to melt (partially spent) coins to obtain fresh coins + * that are unlinkable to the original coin(s). Note that melting more than + * one coin in a single request will make those coins linkable, so we only melt one coin at a time. */ -json_t * -TALER_EXCHANGE_refresh_prepare ( - const struct TALER_CoinSpendPrivateKeyP *melt_priv, - const struct TALER_Amount *melt_amount, - const struct TALER_DenominationSignature *melt_sig, - const struct TALER_EXCHANGE_DenomPublicKey *melt_pk, - unsigned int fresh_pks_len, - const struct TALER_EXCHANGE_DenomPublicKey *fresh_pks); +struct TALER_EXCHANGE_RefreshData +{ + /** + * private key of the coin to melt + */ + struct TALER_CoinSpendPrivateKeyP melt_priv; + + /** + * amount specifying how much the coin will contribute to the melt + * (including fee) + */ + struct TALER_Amount melt_amount; + + /** + * signatures affirming the validity of the public keys corresponding to the + * @e melt_priv private key + */ + struct TALER_DenominationSignature melt_sig; + + /** + * denomination key information record corresponding to the @e melt_sig + * validity of the keys + */ + struct TALER_EXCHANGE_DenomPublicKey melt_pk; + + /** + * array of @e pks_len denominations of fresh coins to create + */ + const struct TALER_EXCHANGE_DenomPublicKey *fresh_pks; + + /** + * length of the @e pks array + */ + unsigned int fresh_pks_len; +}; /* ********************* /coins/$COIN_PUB/melt ***************************** */ @@ -1626,8 +1626,8 @@ typedef void * prior to calling this function. * * @param exchange the exchange handle; the exchange must be ready to operate - * @param refresh_data the refresh data as returned from - #TALER_EXCHANGE_refresh_prepare()) + * @param ps the fresh secret that defines the refresh operation + * @param rd the refresh data specifying the characteristics of the operation * @param melt_cb the callback to call with the result * @param melt_cb_cls closure for @a melt_cb * @return a handle for this request; NULL if the argument was invalid. @@ -1635,7 +1635,8 @@ typedef void */ struct TALER_EXCHANGE_MeltHandle * TALER_EXCHANGE_melt (struct TALER_EXCHANGE_Handle *exchange, - const json_t *refresh_data, + const struct TALER_PlanchetSecretsP *ps, + const struct TALER_EXCHANGE_RefreshData *rd, TALER_EXCHANGE_MeltCallback melt_cb, void *melt_cb_cls); @@ -1672,7 +1673,7 @@ typedef void void *cls, const struct TALER_EXCHANGE_HttpResponse *hr, unsigned int num_coins, - const struct TALER_PlanchetSecretsP *coin_privs, + const struct TALER_CoinSpendPrivateKeyP *coin_privs, const struct TALER_DenominationSignature *sigs); @@ -1692,8 +1693,8 @@ struct TALER_EXCHANGE_RefreshesRevealHandle; * prior to calling this function. * * @param exchange the exchange handle; the exchange must be ready to operate - * @param refresh_data the refresh data as returned from - #TALER_EXCHANGE_refresh_prepare()) + * @param ps the fresh secret that defines the refresh operation + * @param rd the refresh data that characterizes the refresh operation * @param noreveal_index response from the exchange to the * #TALER_EXCHANGE_melt() invocation * @param reveal_cb the callback to call with the final result of the @@ -1705,7 +1706,8 @@ struct TALER_EXCHANGE_RefreshesRevealHandle; struct TALER_EXCHANGE_RefreshesRevealHandle * TALER_EXCHANGE_refreshes_reveal ( struct TALER_EXCHANGE_Handle *exchange, - const json_t *refresh_data, + const struct TALER_PlanchetSecretsP *ps, + const struct TALER_EXCHANGE_RefreshData *rd, uint32_t noreveal_index, TALER_EXCHANGE_RefreshesRevealCallback reveal_cb, void *reveal_cb_cls); |