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zcash_note_encryption
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45 Commits

Author SHA1 Message Date
str4d 6770db186b Merge pull request #425 from str4d/batch-note-decryption 
Batch note decryption

Extracted from: 13b023387b
 2021-08-11 00:47:27 +01:00
Jack Grigg 7f3ca6d79d zcash_note_encryption: Add support for batch-parsing `ephemeral_key` 
This is useful when the underlying curve requires an inversion to parse
an encoded point (such as for Jubjub).


Extracted from: 4b4dd2ea55
 2021-08-10 02:57:11 +01:00
Jack Grigg 2b4a88be36 zcash_note_encryption: Add batched trial decryption APIs 
Extracted from: 8a615c4393
 2021-08-10 02:17:10 +01:00
str4d 2040c32078 Merge pull request #423 from str4d/trial-decryption-optimisation 
Store OutputDescription `ephemeral_key` as bytes

Extracted from: 51aa991ce0
 2021-08-10 02:16:17 +01:00
Jack Grigg 53e008b278 Use `EphemeralKeyBytes` type in place of `[u8; 32]` 
Extracted from: 279a8b6bb6
 2021-08-09 21:28:42 +01:00
str4d 0e533078f4 Merge pull request #421 from str4d/bench-compact-decryption 
zcash_primitives: Benchmark trial decryption of compact outputs

Extracted from: 99d877e22d
 2021-08-05 23:29:16 +01:00
Jack Grigg e7f43cbe25 Disable default benchmark harness for all workspace crates 
This is necessary in order to provide criterion-specific arguments to
`cargo bench`, such as `--profile-time`.


Extracted from: 0f15743200
 2021-08-05 22:39:36 +01:00
str4d 158edbcb20 Merge pull request #400 from str4d/rework-shieldedoutput-api 
zcash_note_encryption: Add `ShieldedOutput::ephemeral_key() -> EphemeralKeyBytes`

Extracted from: cc533a9da4
 2021-06-10 19:22:03 +01:00
Jack Grigg 3999630051 zcash_note_encryption: Add `ShieldedOutput::ephemeral_key() -> EphemeralKeyBytes` 
This replaces the `ShieldedOutput::epk() -> &Domain::EphemeralPublicKey`
which could not be satisfied by output types that did not parse epk.


Extracted from: c7c79d266e
 2021-06-10 18:35:19 +01:00
str4d 3a105f6c07 Merge pull request #395 from str4d/bump-deps 
Migrate to bitvec 0.22, ff 0.10, etc.

Extracted from: 2ba8073971
 2021-06-04 22:36:29 +01:00
Jack Grigg 53115e4b43 Migrate to bitvec 0.22, ff 0.10, etc. 
Requires patching three dependencies:

- bellman is pending a new release.
- nom is part of the funty breakage; we are blocking on a new release.
- orchard is in development.


Extracted from: 1222391dd7
 2021-06-04 22:02:48 +01:00
str4d 5204d69665 Merge pull request #390 from str4d/note-decryption-fixes 
zcash_note_encryption: Note decryption fixes

Extracted from: c13a5d3f3d
 2021-06-02 22:22:35 +01:00
str4d 8aab0aea5a Merge branch 'master' into note-decryption-fixes 
Extracted from: f7f5cd472b
 2021-06-02 18:45:01 +01:00
Kris Nuttycombe 4fab40c3c6 Merge pull request #385 from nuttycom/feature/zip-225-prep 
ZIP-225/244 #1: Minor refactoring and preparatory updates.

Extracted from: 010a5377a9
 2021-06-02 09:39:02 -06:00
Kris Nuttycombe 70dbd54382 Add Nu5 NetworkUpgrade variant. 
Extracted from: 3dc05a69eb
 2021-06-01 07:03:31 -06:00
Jack Grigg a06b406eb4 zcash_note_encryption: Doc fixes 
Extracted from: eba6f417fe
 2021-05-29 00:15:25 +01:00
Jack Grigg 1385c8cc41 zcash_note_encryption: Fix array size in Domain::extract_{esk, pk_d} 
Decrypted output size is `OUT_PLAINTEXT_BYTES`, which the decryptor
can always provide (either by decrypting into the correct size array
as now, or truncating the buffer before passing it to the domain).


Extracted from: 362838c3fa
 2021-05-28 23:48:03 +01:00
Jack Grigg 18e290dbc0 zcash_note_encryption: Add ovk recovery API 
Extracted from: f6705f23c3
 2021-05-28 23:45:23 +01:00
Jack Grigg befb178c61 zcash_note_encryption: Pass cmstar_bytes to Domain::derive_ock 
PRF^ock in the spec takes cm* as a byte array.


Extracted from: ae43e6c074
 2021-05-28 23:41:13 +01:00
Jack Grigg d94482d5ac zcash_note_encryption: s/TryFrom/From on ExtractedCommitmentBytes bound 
This was left over from an earlier refactor where we could call a domain
API to extract cmstar from a note commitment (which could fail for
Orchard). This part of extraction was subsequently refactored into the
domain logic (and is rejected earlier for Orchard). The resulting bound
is wrong because it's always possible to serialize a scalar.


Extracted from: ee2b96c82d
 2021-05-28 22:57:48 +01:00
Jack Grigg 22d0991a46 zcash_note_encryption: Enforce ZIP 212 check on esk from outPlaintext 
It needs to equal the esk derived from the note (for v2 note plaintexts).


Extracted from: 16627b4569
 2021-05-28 22:33:00 +01:00
Jack Grigg c78a79c998 Migrate to ff 0.9 et al. 
Extracted from: 5623e02a7c
 2021-05-19 18:29:37 +01:00
str4d a014a10384 Merge pull request #358 from nuttycom/refactor/component_modules_2 
Generalize Sapling note encryption to allow reuse with Orchard notes.

Extracted from: 3b02c8b26e
 2021-04-16 04:17:57 +01:00
Jack Grigg dc22102d41 cargo fmt 
Extracted from: 28a45028ab
 2021-04-16 14:03:55 +12:00
Daira Hopwood 0a4fb8ff34 Update comment about which case is covered by example code 
Extracted from: dc0f6e7115
 2021-04-16 00:10:05 +01:00
Kris Nuttycombe 9e499c08ca Fix naming cmstar -> cmstar_bytes and cm -> cmstar 
Extracted from: b2b3efd4c2
 2021-04-15 15:24:45 -06:00
Kris Nuttycombe 5358e678b2 Make cmstar check follow the spec more closely. 
Extracted from: 00d04de547
 2021-04-14 15:38:58 -06:00
Kris Nuttycombe a14db84fea Minor comment on epk canonicity. 
Extracted from: 389e6ca6a3
 2021-04-12 18:43:21 -06:00
Kris Nuttycombe c3d0a64fac Update documentation for note encryption traits. 
Extracted from: f34e87884a
 2021-04-12 17:41:06 -06:00
Kris Nuttycombe 2884d70e29 Use ephemeral_key bytes instead of the epk abstract point where specified. 
Extracted from: 6fc1d1d1c0
 2021-04-12 16:19:50 -06:00
Kris Nuttycombe 3843f4ba2b Use ShieldedOutput trait for note encryption/decryption. 
This change modifies note encryption and decryption functions
to treat a shielded output as a single value instead of handling
the parts of an output as independent arguments.


Extracted from: 324fc36521
 2021-04-12 12:59:06 -06:00
Kris Nuttycombe 4903214bfe Apply suggestions from code review 
Co-authored-by: Daira Hopwood <daira@jacaranda.org>

Extracted from: 4f22f1d578
 2021-04-12 09:18:51 -06:00
Kris Nuttycombe e06b628f19 Use constant-time equality for EphemeralKeyBytes. 
Fixes #370


Extracted from: e654cc4ce6
 2021-04-12 09:13:04 -06:00
Kris Nuttycombe a8fd731e26 Add myself to crate contributors. 
Extracted from: cfdbafe2e3
 2021-04-08 10:13:04 -06:00
Kris Nuttycombe c6f3730279 Update comments describing COMPACT_NOTE_SIZE components. 
Co-authored-by: ebfull <ewillbefull@gmail.com>

Extracted from: 24e62d3a7b
 2021-04-08 10:08:58 -06:00
Kris Nuttycombe 78bb0fd6bd Remove spurious mut references. 
Extracted from: a560101bb2
 2021-04-08 10:08:00 -06:00
Kris Nuttycombe 5e355ffc24 Apply suggestions from code review 
Co-authored-by: str4d <jack@electriccoin.co>

Extracted from: 879eea863a
 2021-04-08 08:20:23 -06:00
Kris Nuttycombe cb60fd2092 Fix zcash_note_encryption doctests. 
Extracted from: dad8663c55
 2021-04-08 08:20:23 -06:00
Kris Nuttycombe 8838bf5ef5 Fix Clippy complaints. 
Extracted from: 213cd6cce9
 2021-04-08 08:20:23 -06:00
Kris Nuttycombe 41c71910b1 Update zcash_primitives dev dependency for zcash_note_encryption 
Extracted from: be225daabf
 2021-04-08 08:20:23 -06:00
Kris Nuttycombe fd018d64f9 Add try_output_recovery_with_ovk to shared note encryption code. 
Extracted from: 5b13bb3a1e
 2021-04-08 08:20:23 -06:00
Kris Nuttycombe 44bb542f8d Move generalized note encryption functionality to zcash_note_encryption crate. 
Extracted from: 266285b536
 2021-04-08 08:20:21 -06:00
str4d 7ad6ed1f9f Merge pull request #366 from str4d/lint-fixes 
Lint fixes

Extracted from: 1b4aab0b76
 2021-04-02 11:04:53 +13:00
Jack Grigg 8912285eba clippy: Fix small lints 
Extracted from: 56b577b31e
 2021-03-27 19:01:03 +13:00
Jack Grigg 9f60f56c2a Empty zcash_note_encryption crate 
Extracted from: b7c31e3f54
 2021-03-20 09:56:20 +13:00