From 8bdf6ab19df70c16d335ecf82f2c3b2117eeb70e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=96zg=C3=BCr=20Kesim?= Date: Wed, 16 Feb 2022 22:01:05 +0100 Subject: [age restriction] progress 14/n - withdraw and deposit Age restriction support for - withdraw is done and tested - deposit is done and tested TODOs: - melt/refresh/reveal - link ------ Added functions - TALER_age_restriction_commit - TALER_age_commitment_derive - TALER_age_commitment_hash - TALER_age_restriction_commitment_free_inside - Hash of age commitment passed around API boundaries Exchangedb adjustments for denominations - all prepared statements re: denominations now handle age_mask - signature parameters adjusted Hash and signature verification of /keys adjusted - Hashes of (normal) denominations and age-restricted denominations are calculated seperately - The hash of the age-restricted ones will then be added to the other hash - The total hash is signed/verified Tests for withdraw with age restriction added - TALER_EXCHANGE_DenomPublickey now carries age_mask - TALER_TESTING_cmd_withdraw_amount* takes age parameter - TALER_TESTING_find_pk takes boolean age_restricted - WithdrawState carries age_commitment and its hash - withdraw_run derives new age commitment, if applicable - Added age parameter to testing (13 as example) Various Fixes and changes - Fixes of post handler for /management/extensions - Fixes for offline tool extensions signing - Slight refactoring of extensions - Age restriction extension simplified - config is now global to extension - added global TEH_age_restriction_enabled and TEH_age_mask in taler-exchange-httpd - helper functions and macros introduced --- src/lib/exchange_api_refresh_common.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'src/lib/exchange_api_refresh_common.h') diff --git a/src/lib/exchange_api_refresh_common.h b/src/lib/exchange_api_refresh_common.h index ab19ad7d1..b6926b51f 100644 --- a/src/lib/exchange_api_refresh_common.h +++ b/src/lib/exchange_api_refresh_common.h @@ -52,6 +52,12 @@ struct MeltedCoin */ struct TALER_Amount original_value; + /** + * The original age commitment hash. MUST be all zeroes, if no age + * commitment was set. + */ + struct TALER_AgeCommitmentHash h_age_commitment; + /** * Timestamp indicating when coins of this denomination become invalid. */ @@ -92,6 +98,13 @@ struct FreshCoinData */ struct TALER_CoinSpendPrivateKeyP coin_priv; + /** + * Arrays age commitments to be created, one for each cut-and-choose + * dimension. The entries in each list might be NULL and indicate no age + * commitment/restriction on the particular coin. + */ + struct TALER_AgeCommitment *age_commitment[TALER_CNC_KAPPA]; + /** * Blinding key secrets for the coins, depending on the * cut-and-choose. -- cgit v1.2.3