vexahub/opaque-vx
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c97ddaf5d2dc2a55f6013b0eec20de16e1e7ee6b
Commit Graph
48 Commits
Author SHA1 Message Date
François Garillot c97ddaf5d2 Make KeyExchange generic in KeyFormat 2020-09-21 14:46:04 -04:00
François Garillot 56d38dba2c Reverse use of Tryinto<[u8; 64]> since it's not yet on stable 2020-09-20 10:13:43 -04:00
François Garillot 786bc51fdd Normalize generic parameters for LoginSecondMessage 
(aka use the CipherSuite just like the others)

Repair the generics in KE trait: it makes sense that generate_ke[1-3] should operate on the same key representation.
 2020-09-19 19:16:36 -04:00
François Garillot 887b4577fa fix misuse of constants in KE2Message 2020-09-19 19:16:34 -04:00
François Garillot 3c2a208606 surface the potential breakages out of copy_from_slice 2020-09-19 19:16:31 -04:00
François Garillot 3c555e82ae Make tripleDH manipulate GenericArray<u8, N> over Vec<u8> 
upgrade some of the structure contents of the KE types
 2020-09-19 19:16:28 -04:00
François Garillot 81353cb844 fix benchmarks 2020-09-03 15:54:46 -04:00
François Garillot 48412c8ee4 Merge pull request #46 from huitseeker/elligator2 
Implement and use Elligator2 for the Curve25519 larger subgroup instance
 2020-09-03 15:21:01 -04:00
François Garillot ab8db3bf03 Propagate usage of Elligator2 map 
Fixes #30, #37
 2020-09-03 14:17:45 -04:00
François Garillot dede91a5b7 Add additional test vectors from Signal 2020-09-03 14:17:44 -04:00
François Garillot f1bdfcd3a0 Add elligator mapping for hash-to-curve 2020-09-03 14:17:43 -04:00
François Garillot 2c9e47d14d Proptests exercising try_from for most structures based on random data 
This also fixes crashes in:
- RegisterFirstMessage,
- LoginFirstMessage,
- ClientRegistration,
- ClientLogin
 2020-09-02 10:29:22 -04:00
Kevin Lewi 195a698ad8 Fix omission of nonce in hmac computation for envelope (#44) 2020-09-01 11:23:00 -07:00
François Garillot 694c51c982 remove unneeded Repr = Key 2020-08-24 15:16:51 -04:00
François Garillot 07a702c1be make clippy happier 2020-08-24 15:13:20 -04:00
François Garillot 29ba1b93b5 Check for small subgroup components when using the EdwardsPoint group for the OPRF 
A malicious attacker sending a small point could lead the server / user to leak private information.

The check avoiding mixed order points (rather than just small) is prohibitively expensive, and I don't know how an attacker would extract any data from that => we focus on a small order check.

Fixes #34.
 2020-08-24 14:50:29 -04:00
Kevin Lewi c2edb2d95e Adding a hash type to CipherSuite (#24) 2020-07-27 15:25:04 -07:00
François Garillot 7b11da3bd6 Remove 2x superfluous to_vec 2020-07-23 13:45:46 -04:00
François Garillot 4fda240a7d Pass the {curve, x}25519-dalek features through the build 2020-07-22 14:59:06 -04:00
François Garillot 91137903c6 Add benchmarks for OPRF functions (under a bench feature) 2020-07-22 14:32:58 -04:00
François Garillot e93e8fd5a8 Make the group mod public 2020-07-22 11:58:00 -04:00
Kevin Lewi f8285c60ba Introducing a trait for key exchange (#20) 2020-07-13 15:23:29 -07:00
François Garillot 69449cca3e Activate #![deny(missing_docs)], #![deny(unsafe_code)] 2020-07-06 15:40:35 -04:00
François GarillotandKevinLewi 9d40aa7659 As a way to roll back the genericity, implement an extension trait of group for password-to-curve hashing, 
This supersedes #18.

Co-authored-by: KevinLewi <[email protected]>
 2020-07-03 21:05:18 -04:00
François Garillot 41cd80ccb5 Make oprf::generate_oprf1 generic in the Digest, as long as it matches the hash-to-curve intake of the group 
We used to have three problems:
- overuse of the <Sha256 as Digest>::OutputSize, which is just, well, U32. Sometimes used as a parameter (as in generate_oprf1), sometimes as a constant (as in generate_oprf3).
- the `hash_to_curve` operation for `RistrettoPoint` which requires 64 bits of input entropy, is fed 64 bits of which the last 32 are zero,
- the `hash_to_curve` operation for `Curve25519Point` which requires 32 bits of input entropy, is fed 64 bits of which the last 32 are discarded,

This corrects all three and uses U32 where the size of the digest is not meant to be a constraint.

Addresses #15 partially.
 2020-07-03 18:28:34 -04:00
François Garillot 52429dd2fa fix a clone-on-copy-type 2020-07-03 17:30:33 -04:00
François Garillot bb9c365998 Rename Group::to_bytes() into Group::to_arr(), 
This brings the `Group` and `SizedBytes` traits into some sort of name
coherence (they both return a GenericArray). This also uses
`&my_generic_array[..]` (i.e. the `Deref` impl) over
`my_generic_array.as_slice()`.
 2020-07-03 17:30:32 -04:00
François Garillot 3e41f2441d mention issue for direct call into uniform_bytes in RistrattoPoint 2020-07-03 16:12:14 -04:00
François Garillot 59d997900e Simplify "<CS as CipherSuite>" where possible 2020-07-03 15:58:42 -04:00
Kevin Lewi 6d02c72aae Updating to draft-krawczyk-cfrg-opaque-06, reworking envelope construction and removing AEAD (#14) 
Updating to draft-krawczyk-cfrg-opaque-06, reworking envelope construction and removing AEAD
 2020-07-02 12:24:53 -07:00
François Garillot c9d467e368 Add (normal) macros showing how to generate SizedBytes to/from TryFrom + to_bytes 
This is useful for getting serialization of the KEXState, KEXMessage formats without too much boilerplate

Add client_login, login_first_message roundtrip serialization tests
 2020-06-19 15:23:21 -04:00
François Garillot 7a2d309263 Moves the keypair generation to an extension trait 
This technical change lets us avoid polluting the code with derives of Debug.
 2020-06-19 15:23:03 -04:00
François Garillot 4f9b7fe86f Update digest & hashes libraries to their latest versions 2020-06-16 06:24:14 -07:00
Kevin Lewi 2cf6808665 Adding documentation to each component of CipherSuite 2020-06-15 16:40:46 -07:00
Kevin Lewi ab1b1d6209 Adding CipherSuite trait to handle bundling of underlying crypto primitives 2020-06-14 23:29:25 -07:00
Kevin Lewi 0cf13c2266 Adding CipherSuite trait to handle bundling of underlying crypto primitives 2020-06-14 23:25:31 -07:00
Kevin Lewi f030fca1cb index on bundle_api: 57e152b Adding password hashing functionality 2020-06-14 06:10:26 -07:00
François Garillot 3ae1c58d46 test DH as well 2020-06-13 09:07:57 -04:00
François Garillot e9fa474c58 Remove SignalKeyPair, rename all instances of SignalKeyPair to X25519KeyPair, pass all tests. 2020-06-13 09:07:55 -04:00
François Garillot e9add9fd7a add tests showing X25519KeyPair == SignalKeyPair 2020-06-13 09:07:53 -04:00
François Garillot b401cfc89c Added proptest strategy to generate a random keypair 2020-06-13 09:07:51 -04:00
François Garillot 3a1aaab6cf Merge pull request #7 from huitseeker/Cleanup_CI 
Make CI run on PRs as well
 2020-06-13 08:49:53 -04:00
François Garillot ce1d97002c cleaner to_bytes() for a few structures 2020-06-12 18:38:14 -04:00
Kevin Lewi 80fc493a60 Adding slow-hash feature 2020-06-11 14:56:37 -07:00
Kevin Lewi 8362804946 Merge branch 'master' into add_pw_hash 2020-06-10 14:54:27 -07:00
Kevin Lewi af22bfa54f Adding note on draft status in doc comments 2020-06-09 15:13:42 -07:00
Kevin Lewi 57e152b028 Adding password hashing functionality 2020-06-08 21:02:01 -07:00
Kevin Lewi 88696763cc Initial commit
Rust CI / test + Clippy + rustfmt (push) Has been cancelled
Details
2020-06-05 09:35:14 -07:00