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pyUmbral
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Author SHA1 Message Date
David Núñez ea442fe702 Janitorial stuff 2018-10-06 21:31:39 +02:00
David Núñez 236ff239fe Use constant_sorrow to handle signing mode constants in KFrag 2018-10-06 19:00:34 +02:00
David Núñez 0eb7e22dc4 New signing mode in KFrag for stating what correctness keys are signed 2018-10-06 19:00:34 +02:00
David Núñez 4e331f3010 Rename pre.split_rekey to pre.generate_kfrags. Introduce changes in args 2018-10-06 19:00:34 +02:00
David Núñez d6ee0cc4e5 Capsule._reconstruct_shamirs is absorbed into pre._decapsulate_reencrypted 2018-10-06 19:00:34 +02:00
David Núñez ecc166f23c Activated capsules don't exist anymore as objects of the Capsule class 2018-10-06 19:00:34 +02:00
David Núñez 7f50bf48b8 More type checking on re-encrypt and decrypt APIs 2018-10-06 19:00:34 +02:00
David Núñez 054777eb53 KFrags now has 2 signatures (Bob and proxy) and a new point 
* point_precursor removes need for point_xcoord and point_noninteractive
* Fixes access to protected attributes in some places
 2018-10-06 19:00:34 +02:00
David Núñez f535f926b9 New test for kfrags signed without correctness keys. Test fails 2018-10-06 19:00:26 +02:00
David Núñez 21c50eb575 Allows to set a single correctness key. Tests for correctness keys. 2018-09-21 12:51:57 +02:00
David Núñez 795325b5ad Rename variables shadowing `id` function 2018-09-19 13:06:06 +02:00
David Núñez 5fc94b4070 Delegating and receiving pubkeys are now optional for kfrag validation 2018-09-19 13:06:06 +02:00
David Núñez ea6f60da91 Add method UmbralPublicKey.expected_bytes_length, based on Point 2018-09-19 13:06:06 +02:00
David Núñez 9f358ccff9 Check ciphertext min length in pre.decrypt. Some reflow too 2018-08-31 17:12:32 +02:00
David Núñez 51357f24ce Adds __repr__ to Capsule, KFrag and CFrag, and changes it in UmbralPublicKey 2018-08-31 17:12:32 +02:00
Kieran Prasch 76599ace57 Bump version: 0.1.0-alpha.3 → 0.1.0-alpha.4 2018-08-21 14:33:15 -07:00
Kieran Prasch 09e3c46b35 Bump version: 0.1.0-alpha.2 → 0.1.0-alpha.3 2018-08-21 14:21:20 -07:00
Kieran Prasch 1920266b4d Bump version: 0.1.0-alpha.1 → 0.1.0-alpha.2 2018-08-21 13:21:08 -07:00
Kieran Prasch a4f3a47732 Bump version: 0.1.0-alpha.0 → 0.1.0-alpha.1 2018-08-21 13:03:56 -07:00
Kieran Prasch 07cf81bac6 Add required packaging metadata: pass setup.py check 2018-08-20 15:25:24 -07:00
Kieran Prasch c65cf525de Update project metadata and copyright 2018-08-18 17:51:44 -07:00
Kieran Prasch a8f7d9adb4 Add global metadata to umbral __init__ 2018-08-18 17:25:58 -07:00
Kieran Prasch 2dcc2220b3 Update setup.py; Classifiers, Requirements and Extras 2018-08-18 17:25:58 -07:00
Kieran Prasch 357d5d488c Single-source versioning with __about__; Nest __about__ in umbral; Update bumpversion file config 2018-08-18 17:25:58 -07:00
David Núñez 204f295bfb Expected length of signature depends on its group order, not field order 2018-08-15 22:34:21 -05:00
David Núñez 08d6b9d44f Fix incorrect type annotations in pre.Capsule and Curve 2018-08-15 22:33:54 -05:00
David Núñez bbd3d8ec86 Remove unused call to get_affine_coords in Point.to_bytes 2018-08-06 20:29:04 -05:00
David Núñez ff49551360 Change Point.from_bytes to rely directly in OpenSSL EC_POINT_oct2point 2018-08-06 20:29:04 -05:00
David Núñez c394e72e7c Change CurveBN.expected_bytes_length to use the curve group order size 2018-08-06 20:29:04 -05:00
David Núñez b84c83ed44 Introduce curve.group_order_size_in_bytes (different from field order) 2018-08-06 20:29:04 -05:00
David Núñez 1a47ce8493 Use number of bytes returned by BN_bn2bin as ffi.buffer size 
The problem is that ffi.buffer fills memory "justified to the left", so e.g., if the BN is 1, the buffer is 010000....00, and we want 00...000001
 2018-08-06 20:29:04 -05:00
David Núñez d0b9dc7c8d Use OpenSSL point conversion form constants 2018-08-06 20:29:04 -05:00
David Núñez 3b145892c9 Use OpenSSL primitives in Point.to_bytes 2018-08-06 20:29:04 -05:00
David Núñez 841719c28e Added openssl._bn_to_bytes, to transform BIGNUMs to bytes 2018-08-06 20:29:04 -05:00
David Núñez 4f63089226 Deserialize BIGNUMs with new method, instead of int.from_bytes 2018-08-06 20:29:04 -05:00
David Núñez 92034134ca Make openssl._bytes_to_bn curve-agnostic 2018-08-06 20:29:04 -05:00
David Núñez e1728149f7 Additional size checks in the input of openssl._bytes_to_bn 2018-08-06 20:29:04 -05:00
David Núñez 7e1565ee54 Introduce openssl._bytes_to_bn method 2018-08-06 20:29:04 -05:00
David Nuñez 9d87da3c30 Remove UmbralPublicKey.get_pubkey method 2018-08-04 11:25:58 -05:00
David Núñez cd18086b1b pre.reencrypt raises KFrag.NotValid when necessary 2018-08-03 22:24:21 -05:00
David Núñez 26821a9cb2 New method KFrag.verify_for_capsule. Takes correctness keys from capsule 2018-08-03 22:24:21 -05:00
David Núñez 41197fa423 Introduce KFrag.NotValid exception for invalid KFrags 2018-08-03 22:24:21 -05:00
tuxxy d9caff48f8 Add license headers 2018-07-25 11:55:12 -06:00
David Núñez 58960c553b
Merge pull request #200 from KPrasch/master 
Reflow curve interface
 2018-07-23 11:16:54 +02:00
Kieran Prasch 3da35827ba Increases test accuracy/coverage supported curves; Includes RFC responses. 2018-07-21 14:47:25 -07:00
Kieran Prasch d0ba7b5567 add init-time property cache for curve field order size (in bytes); Rename method respectively. 2018-07-21 14:16:15 -07:00
Kieran Prasch 4c0fee3973 Treat field order size as cached attribute 2018-07-20 12:56:52 -07:00
Kieran Prasch 32b419af11 Revise alternate curve constructor; Immutably cache curve metadata 2018-07-20 12:56:09 -07:00
Kieran Prasch 1872647a15 Reverse supported curve whitelist k/v 2018-07-20 12:54:09 -07:00
David Núñez 6846f3bafc Use params.curve.__eq__ method in params.__eq__ 2018-07-20 09:57:09 +02:00
David Núñez 646dfb3b26 Fix potential attacks when label or data are empty byte strings 2018-07-20 09:57:09 +02:00
David Núñez 083a4fb685 unsafe_hash_to_point now can output negative points 2018-07-20 09:57:09 +02:00
David Núñez c41eaf0549 Fix bug in unsafe_hash_to_points when label is None, by using defaults 2018-07-20 09:57:09 +02:00
Kieran Prasch 12fc13c9a3 Reflow curve interface 2018-07-19 15:41:25 -07:00
Tux ef2ff044d8
Merge pull request #192 from cygnusv/curvebn-ops 
Minor improvements to CurveBN
 2018-07-17 11:02:25 -06:00
David Núñez 014c46cad8 Rename Point.__inverse__ as __neg__ according to the additive notation 2018-07-16 16:18:16 +02:00
David Núñez d645d75b2b Fix previous bug in Point.from_affine and Point.from_bytes 2018-07-16 16:13:35 +02:00
David Núñez f018079251 Some refinement in lambda_coeff and poly_eval, from umbral.utils 2018-07-13 02:26:04 +02:00
David Núñez f17b2419c4 Some type annotations for CurveBN 2018-07-13 02:26:04 +02:00
David Núñez b5b3513707 Support for int arguments in CurveBN.__add__ and __sub__ 2018-07-13 02:26:04 +02:00
David Núñez 3eb66de507 Fix memleak in CurveBN.truediv 2018-07-13 02:26:04 +02:00
David Núñez d5bc44d01a Modular opposite for CurveBN 
"I'm the opposite of every guy you've ever met"
 2018-07-13 02:26:04 +02:00
David Núñez 2075082ef6 Update 'NuCypherKMS' to 'NuCypher' 2018-07-13 02:26:04 +02:00
David Núñez d7c31475b8 Remove forward references to 'CurveBN' 2018-07-13 02:26:04 +02:00
David Núñez 66c5078ed0 Refactor get_field_order_size_in_bytes as a Curve method 2018-07-13 02:26:04 +02:00
jMyles c46785ca17 Constant time comparison for KFrag. 2018-07-12 02:35:16 -07:00
jMyles 1aaaf7866c Using _id for KFrag __hash__ instead of full bytes. Also test for the same. Also lots of cleanup. 2018-07-12 02:34:01 -07:00
jMyles aeab6e93af expected_bytes_length can now take is_compressed. test for casting UmbralPublicKey.to_bytes() with is_compressed. 2018-07-12 02:27:05 -07:00
jMyles 9f7a0e10f8 Adds is_compressed to UmbralPublicKey.to_bytes() 2018-07-12 02:22:31 -07:00
Kieran Prasch 19b1991de6 Hand-picked type data to follow-up monkeytype 2018-07-09 12:26:32 -06:00
Kieran Prasch befb0c30d7 skip openssl type checks; update mypy ini config. 2018-07-09 12:13:40 -06:00
Kieran Prasch 2fe18c7144 Initial bulk application of type hints to pyUmbral 2018-07-09 12:11:43 -06:00
tuxxy 4a20ef0692 Add __repr__ for Curve object 2018-07-07 13:56:07 -06:00
tuxxy a717a87384 Use singleton model for curves; allow users to import instances 2018-07-07 13:56:07 -06:00
tuxxy e2d1352abf Refactor openssl, point, etc to use a single curve object -- fixes memory leak 2018-07-07 13:56:07 -06:00
tuxxy 4d1ae51478 Make simple_api tests pass 2018-07-07 13:56:07 -06:00
tuxxy ac0e65b5e3 Make test_capsule_correctness work 2018-07-07 13:56:07 -06:00
tuxxy 5a4984fd4e Fix test_config 2018-07-07 13:56:07 -06:00
tuxxy 41cb180fe1 Make the tests run in a failing state, but runnable 2018-07-07 13:56:06 -06:00
tuxxy e65669e6c1 Add generator to Curve 2018-07-07 13:56:06 -06:00
tuxxy e5924f79be Add simple __eq__ method for comparing two Curve objects 2018-07-07 13:56:06 -06:00
tuxxy f80f128927 Create supported_curves property and check values in test 2018-07-07 13:56:06 -06:00
tuxxy e8c5c1b449 Raise ValueError if Curve is instantiated with unsupported nid 2018-07-07 13:56:06 -06:00
tuxxy 10bd7a9614 Add whitelist Curve objects 2018-07-07 13:56:06 -06:00
tuxxy 2a73f7804f Add basic Curve object structure and CURVE_WHITELIST dict 2018-07-07 13:56:06 -06:00
David Núñez 0d206cb279 Add check for 0<M<=N in pre.split_rekey. Tests for that. 2018-06-25 13:55:55 -07:00
David Núñez 38eff317c4 Fixes deserialization problems for non-default curves 
* Passes the curve to BystringSplitter
 2018-06-06 11:31:33 +02:00
David Núñez 41a3c9bdcf Fix Signature to account for the order of the curve 
* Uses CurveBNs instead of ints
* Signature.from_bytes takes an additional argument 'curve'
 2018-06-06 11:31:28 +02:00
David Núñez fa4375d9dc Adapt verify_kfrag to simplified API (I missed this in the main commit) 2018-06-05 03:51:30 +02:00
David Núñez d34fd6e3e7 Fix __bytes__ definition in CorrectnessProof 2018-06-05 03:49:53 +02:00
David Núñez d70d21dfe0 Fix some functions definition according to PEP8 2018-06-05 03:49:22 +02:00
David Núñez 9e126bde29 Fixes bug in Capsule.attach_cfrag that allowed to attach incorrect CFrag 2018-06-05 02:52:23 +02:00
David Núñez 5618b25292 Simplified public API for umbral.pre 
* Functions in `pre` now only take Umbral keys as arguments, rather than primitive types (Point, CurveBN)
* Remove unnecessary arguments from public facing and internal methods when they can be extracted from a Capsule, UmbralPublicKey or UmbralPrivateKey
* Adds a getter in Capsule for correctness keys
* Adapts the test suite to new simplified API
 2018-06-05 02:52:16 +02:00
David Núñez c736370bcc Remove params as an argument when possible 
* Instead, takes params from Capsules or UmbralPublicKeys
* Makes params required in some places (Capsule.init, Capsule.from_bytes, etc)
* Removes pre.CHACHA20_KEY_SIZE constant and use dem.DEM_KEYSIZE instead
 2018-06-05 02:11:32 +02:00
David Núñez c98f723eec Check that params match when setting correctness keys 2018-06-05 02:11:32 +02:00
David Núñez 03b4138229 Add params when deserializing Capsule 2018-06-05 02:11:32 +02:00
David Núñez 9170b70135 Add __eq__ method to UmbralParameters 2018-06-05 02:11:32 +02:00
jMyles e04a44c239 Capsule length now reflects number of attached CFrags. 2018-06-01 23:50:20 -07:00
David Núñez bea29a3550 Fix missing params in public key generation in UmbralPrivateKey 2018-05-31 14:26:50 +02:00
David Núñez e14636a2a9 Checks that _set_cfrag_correctness_key is only used in allowed keypairs 2018-05-31 12:47:48 +02:00