diff options
Diffstat (limited to 'src/include/taler_crypto_lib.h')
| -rw-r--r-- | src/include/taler_crypto_lib.h | 175 |
1 files changed, 107 insertions, 68 deletions
diff --git a/src/include/taler_crypto_lib.h b/src/include/taler_crypto_lib.h index 9bbf29de4..2843d8209 100644 --- a/src/include/taler_crypto_lib.h +++ b/src/include/taler_crypto_lib.h @@ -564,22 +564,6 @@ struct TALER_BlindedCoinHash /** - * Hash used to uniquely represent a withdraw process so as to perform - * idempotency checks (and prevent clients from harmfully replaying withdraw - * operations with problematic variations on the inputs). In the CS case, - * this is a hash over the DK and nonce, while in the RSA case, it is simply a - * hash over the DK and the blinded coin. - */ -struct TALER_WithdrawIdentificationHash -{ - /** - * Actual hash value. - */ - struct GNUNET_HashCode hash; -}; - - -/** * Hash used to represent the hash of the public * key of a coin (without blinding). */ @@ -629,10 +613,100 @@ struct TALER_ExtensionConfigHash }; +/** + * Set of the fees applying to a denomination. + */ +struct TALER_DenomFeeSetNBOP +{ + + /** + * The fee the exchange charges when a coin of this type is withdrawn. + * (can be zero). + */ + struct TALER_AmountNBO withdraw; + + /** + * The fee the exchange charges when a coin of this type is deposited. + * (can be zero). + */ + struct TALER_AmountNBO deposit; + + /** + * The fee the exchange charges when a coin of this type is refreshed. + * (can be zero). + */ + struct TALER_AmountNBO refresh; + + /** + * The fee the exchange charges when a coin of this type is refunded. + * (can be zero). Note that refund fees are charged to the customer; + * if a refund is given, the deposit fee is also refunded. + */ + struct TALER_AmountNBO refund; + +}; + + GNUNET_NETWORK_STRUCT_END /** + * Set of the fees applying to a denomination. + */ +struct TALER_DenomFeeSet +{ + + /** + * The fee the exchange charges when a coin of this type is withdrawn. + * (can be zero). + */ + struct TALER_Amount withdraw; + + /** + * The fee the exchange charges when a coin of this type is deposited. + * (can be zero). + */ + struct TALER_Amount deposit; + + /** + * The fee the exchange charges when a coin of this type is refreshed. + * (can be zero). + */ + struct TALER_Amount refresh; + + /** + * The fee the exchange charges when a coin of this type is refunded. + * (can be zero). Note that refund fees are charged to the customer; + * if a refund is given, the deposit fee is also refunded. + */ + struct TALER_Amount refund; + +}; + + +/** + * Convert fee set from host to network byte order. + * + * @param[out] nbo where to write the result + * @param fees fee set to convert + */ +void +TALER_denom_fee_set_hton (struct TALER_DenomFeeSetNBOP *nbo, + const struct TALER_DenomFeeSet *fees); + + +/** + * Convert fee set from network to host network byte order. + * + * @param[out] fees where to write the result + * @param nbo fee set to convert + */ +void +TALER_denom_fee_set_ntoh (struct TALER_DenomFeeSet *fees, + const struct TALER_DenomFeeSetNBOP *nbo); + + +/** * Hash @a rsa. * * @param rsa key to hash @@ -1358,22 +1432,6 @@ TALER_coin_ev_hash (const struct TALER_BlindedPlanchet *blinded_planchet, /** - * Compute the hash to uniquely identify a withdraw - * request. - * - * @param blinded_planchet blinded planchet - * @param denom_hash hash of the denomination publick key - * @param[out] wih where to write the hash - * @return #GNUNET_OK when successful, #GNUNET_SYSERR if an internal error occured - */ -enum GNUNET_GenericReturnValue -TALER_withdraw_request_hash ( - const struct TALER_BlindedPlanchet *blinded_planchet, - const struct TALER_DenominationHash *denom_hash, - struct TALER_WithdrawIdentificationHash *wih); - - -/** * Compute the hash of a coin. * * @param coin_pub public key of the coin @@ -1548,16 +1606,19 @@ TALER_transfer_secret_to_planchet_secret ( /** * Derive the @a coin_num transfer private key @a tpriv from a refresh from - * the @a rms seed of the refresh operation. The transfer private key - * derivation is based on the @a ps with a KDF salted by the @a coin_num. + * the @a rms seed and the @a old_coin_pub of the refresh operation. The + * transfer private key derivation is based on the @a ps with a KDF salted by + * the @a coin_num. * * @param rms seed to use for KDF to derive transfer keys + * @param old_coin_priv private key of the old coin * @param cnc_num cut and choose number to include in KDF * @param[out] tpriv value to initialize */ void TALER_planchet_secret_to_transfer_priv ( const struct TALER_RefreshMasterSecretP *rms, + const struct TALER_CoinSpendPrivateKeyP *old_coin_priv, uint32_t cnc_num, struct TALER_TransferPrivateKeyP *tpriv); @@ -1675,8 +1736,8 @@ TALER_planchet_to_coin ( * @param[in,out] hash_context hash context to use */ void -TALER_blinded_planchet_hash (const struct TALER_BlindedPlanchet *bp, - struct GNUNET_HashContext *hash_context); +TALER_blinded_planchet_hash_ (const struct TALER_BlindedPlanchet *bp, + struct GNUNET_HashContext *hash_context); /** @@ -1769,6 +1830,7 @@ struct TALER_RefreshCommitmentEntry * * @param[out] rc set to the value the wallet must commit to * @param kappa number of transfer public keys involved (must be #TALER_CNC_KAPPA) + * @param rms refresh master secret to include, can be NULL! * @param num_new_coins number of new coins to be created * @param rcs array of @a kappa commitments * @param coin_pub public key of the coin to be melted @@ -1777,6 +1839,7 @@ struct TALER_RefreshCommitmentEntry void TALER_refresh_get_commitment (struct TALER_RefreshCommitmentP *rc, uint32_t kappa, + const struct TALER_RefreshMasterSecretP *rms, uint32_t num_new_coins, const struct TALER_RefreshCommitmentEntry *rcs, const struct TALER_CoinSpendPublicKeyP *coin_pub, @@ -2724,10 +2787,7 @@ TALER_exchange_offline_signkey_validity_verify ( * @param stamp_expire_deposit how long does the exchange accept the deposit of coins with this key * @param stamp_expire_legal how long does the exchange preserve information for legal disputes with this key * @param coin_value what is the value of coins signed with this key - * @param fee_withdraw what withdraw fee does the exchange charge for this denomination - * @param fee_deposit what deposit fee does the exchange charge for this denomination - * @param fee_refresh what refresh fee does the exchange charge for this denomination - * @param fee_refund what refund fee does the exchange charge for this denomination + * @param fees fees for this denomination * @param master_priv private key to sign with * @param[out] master_sig where to write the signature */ @@ -2739,10 +2799,7 @@ TALER_exchange_offline_denom_validity_sign ( struct GNUNET_TIME_Timestamp stamp_expire_deposit, struct GNUNET_TIME_Timestamp stamp_expire_legal, const struct TALER_Amount *coin_value, - const struct TALER_Amount *fee_withdraw, - const struct TALER_Amount *fee_deposit, - const struct TALER_Amount *fee_refresh, - const struct TALER_Amount *fee_refund, + const struct TALER_DenomFeeSet *fees, const struct TALER_MasterPrivateKeyP *master_priv, struct TALER_MasterSignatureP *master_sig); @@ -2756,10 +2813,7 @@ TALER_exchange_offline_denom_validity_sign ( * @param stamp_expire_deposit how long does the exchange accept the deposit of coins with this key * @param stamp_expire_legal how long does the exchange preserve information for legal disputes with this key * @param coin_value what is the value of coins signed with this key - * @param fee_withdraw what withdraw fee does the exchange charge for this denomination - * @param fee_deposit what deposit fee does the exchange charge for this denomination - * @param fee_refresh what refresh fee does the exchange charge for this denomination - * @param fee_refund what refund fee does the exchange charge for this denomination + * @param fees fees for this denomination * @param master_pub public key to verify against * @param master_sig the signature the signature * @return #GNUNET_OK if the signature is valid @@ -2772,10 +2826,7 @@ TALER_exchange_offline_denom_validity_verify ( struct GNUNET_TIME_Timestamp stamp_expire_deposit, struct GNUNET_TIME_Timestamp stamp_expire_legal, const struct TALER_Amount *coin_value, - const struct TALER_Amount *fee_withdraw, - const struct TALER_Amount *fee_deposit, - const struct TALER_Amount *fee_refresh, - const struct TALER_Amount *fee_refund, + const struct TALER_DenomFeeSet *fees, const struct TALER_MasterPublicKeyP *master_pub, const struct TALER_MasterSignatureP *master_sig); @@ -2910,10 +2961,7 @@ TALER_exchange_secmod_cs_verify ( * @param stamp_expire_deposit how long does the exchange accept the deposit of coins with this key * @param stamp_expire_legal how long does the exchange preserve information for legal disputes with this key * @param coin_value what is the value of coins signed with this key - * @param fee_withdraw what withdraw fee does the exchange charge for this denomination - * @param fee_deposit what deposit fee does the exchange charge for this denomination - * @param fee_refresh what refresh fee does the exchange charge for this denomination - * @param fee_refund what refund fee does the exchange charge for this denomination + * @param fees fees the exchange charges for this denomination * @param auditor_priv private key to sign with * @param[out] auditor_sig where to write the signature */ @@ -2927,10 +2975,7 @@ TALER_auditor_denom_validity_sign ( struct GNUNET_TIME_Timestamp stamp_expire_deposit, struct GNUNET_TIME_Timestamp stamp_expire_legal, const struct TALER_Amount *coin_value, - const struct TALER_Amount *fee_withdraw, - const struct TALER_Amount *fee_deposit, - const struct TALER_Amount *fee_refresh, - const struct TALER_Amount *fee_refund, + const struct TALER_DenomFeeSet *fees, const struct TALER_AuditorPrivateKeyP *auditor_priv, struct TALER_AuditorSignatureP *auditor_sig); @@ -2946,10 +2991,7 @@ TALER_auditor_denom_validity_sign ( * @param stamp_expire_deposit how long does the exchange accept the deposit of coins with this key * @param stamp_expire_legal how long does the exchange preserve information for legal disputes with this key * @param coin_value what is the value of coins signed with this key - * @param fee_withdraw what withdraw fee does the exchange charge for this denomination - * @param fee_deposit what deposit fee does the exchange charge for this denomination - * @param fee_refresh what refresh fee does the exchange charge for this denomination - * @param fee_refund what refund fee does the exchange charge for this denomination + * @param fees fees the exchange charges for this denomination * @param auditor_pub public key to verify against * @param auditor_sig the signature the signature * @return #GNUNET_OK if the signature is valid @@ -2964,10 +3006,7 @@ TALER_auditor_denom_validity_verify ( struct GNUNET_TIME_Timestamp stamp_expire_deposit, struct GNUNET_TIME_Timestamp stamp_expire_legal, const struct TALER_Amount *coin_value, - const struct TALER_Amount *fee_withdraw, - const struct TALER_Amount *fee_deposit, - const struct TALER_Amount *fee_refresh, - const struct TALER_Amount *fee_refund, + const struct TALER_DenomFeeSet *fees, const struct TALER_AuditorPublicKeyP *auditor_pub, const struct TALER_AuditorSignatureP *auditor_sig); 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