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out the issue
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signature verification)
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JSON hashing
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taler-exchange-offline still unfinished)
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- refactoring of extension-plugin-mechanism
- refactoring of age restriction extension
- added policy extensions plugin plumbing
- added DB schema and api
- policy_details
- policy_fulfillments
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- Running XOR of all SHA-512 hashes of each denomination's public key is
compared against the "hash" value in the JSON blob.
- Fixed a bug during creation of the running XOR.
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- /keys response now contains signed denomintations
- hashes of denominations now XOR'ed per group into a single hash-code
- final hash-code is now XOR of all group hash codes
- final hash-code is signed
- lib/exchange_api_handle support for new "denominations" implemented
- parses array of denomation groups
- creates running xor of hashes
- verifies signature at the end
- previous diff/merge logic for keys remains intact.
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also: fix off-by-one in TALER_age_restriction_commit
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Age restriction support for
- withdraw is done and tested
- deposit is done and tested
TODOs:
- melt/refresh/reveal
- link
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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
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- major refactoring of extensions
- extensions live now in a separate library, libtalerextensions
- refactored all components using age_restriction accordingly
- plumbing for plugin support for extensions roughly layed down
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More work towards support for extensions:
- Prepared statements and DB-plugin-functions for setting and retrieving
configurations from the database added.
- primitive "registry" of extensions for age restrictions and peer2peer
(stub)
- TALER_Extensions now with FP for parsing, setting and converting a
configuration.
- /management/extensions handler now verifies signature of the (opaque)
json object for all extensions.
- /management/extensions handler calls the FP in the corrensponding
TALER_Extension for parsing and setting the configuration of a
particular extension
More work towards age restriction:
- TALER_Extensions interfaces for config-parser, -setter and converter
implemented for age restriction
- DB event handler now retrieves config from database, parses it and
sets it (the age mask) in the global extension.
- load_age_mask now loads age mask from the global extension (and not
from the config file)
- add age_restricted_denoms to /keys response
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More worke towards support for extensions and age restriction:
- taler-exchange-httpd_management_extensions.c almost completed
- handling of request implemented
- stub "set_extensions" for database transaction added
- utility functions added
- TALER_exchange_offline_extension_agemask_{sign,verify}
- TALER_agemask_parse_json
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