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261 Commits

Author SHA1 Message Date
therealyingtong f44fce557e Set cm_star = cm.extract() instead of the point cm 
Co-authored-by: Daira Hopwood <daira@jacaranda.org>
 2021-05-27 13:02:29 +08:00
therealyingtong 8410648f87 Check esk using np.rseed in decrypt_using_ovk() 
Co-authored-by: Daira Hopwood <daira@jacaranda.org>
 2021-05-27 13:02:16 +08:00
ying tong 83074b2628
Document decoding of ephemeral_key from epk 
Co-authored-by: Daira Hopwood <daira@jacaranda.org>
 2021-05-27 12:53:27 +08:00
ying tong 2120658d5d Check 'is None' instead of boolean false 
Co-authored-by: Daira Hopwood <daira@jacaranda.org>
 2021-05-27 12:51:54 +08:00
ying tong dbf772b00d Call rcm() and psi() using self.rho() 
Co-authored-by: Daira Hopwood <daira@jacaranda.org>
 2021-05-27 12:51:50 +08:00
Jack Grigg 445c2602f4 Rename header() to version_bytes() 
Now that the v5 transaction format has an actual header region, this
old naming makes less sense.
 2021-05-26 18:12:16 +01:00
Jack Grigg bc75d044a1 Use specific tx formats compatible with sighash algorithms 
ZIP 244 is only defined for v5 transactions, so use the TransactionV5
type directly; likewise use LegacyTransaction with the ZIP 143 and
ZIP 243 APIs.
 2021-05-26 18:01:00 +01:00
str4d a5a7340290
Remove unnecessary txin parameters 
These were leftover from an earlier version of the PR.

Co-authored-by: ying tong <yingtong@z.cash>
 2021-05-26 17:50:50 +01:00
Jack Grigg da4e9b22dc Test vectors for ZIP 244 2021-05-26 17:46:54 +01:00
Jack Grigg b9ce8224b6 Implement structural generator for v5 transaction format (ZIP 225) 2021-05-26 17:46:53 +01:00
Daira Hopwood c056ec5dc0
Merge pull request #29 from zcash-hackworks/orchard-key-components 
Orchard key components
 2021-05-26 11:05:19 +01:00
therealyingtong cbf2e840b9 Remove bytes() coercion for OrchardNotePlaintext.rseed 
Co-authored-by: Jack Grigg <jack@electriccoin.co>
 2021-05-26 14:32:28 +08:00
therealyingtong c182edabd4 Address review comments. 
Co-authored-by: Jack Grigg <jack@electriccoin.co>
 2021-05-26 14:26:08 +08:00
therealyingtong 406747099a Test decryption using ivk and fvk 2021-05-26 14:10:36 +08:00
therealyingtong 11ad2d4f95 Add orchard_note_encryption.py 2021-05-26 14:10:36 +08:00
therealyingtong 6f395a5750 Add orchard_note.py 2021-05-26 14:10:36 +08:00
therealyingtong 63a1e76fb9 Add orchard_utils.py 2021-05-26 14:10:36 +08:00
therealyingtong e50da335f5 Use randomness in test and address review comments 2021-05-26 13:30:52 +08:00
therealyingtong 646ff15777 Use ff1 for default diversifier 2021-05-26 13:29:59 +08:00
ying tong 12a07b4f61
Merge pull request #28 from zcash-hackworks/orchard-commitments 
Add Orchard commitments
 2021-05-26 11:38:36 +08:00
Kris Nuttycombe 5e1e5498f7
Merge pull request #31 from zcash-hackworks/f4jumble 
Test vector generator for F4Jumble
 2021-05-19 09:02:44 -06:00
therealyingtong f1342994dd Case ivk as Scalar in default_pkd() 2021-05-14 11:16:34 +08:00
therealyingtong 04587ac9ba Fix Scalar typecasting 
Co-authored-by: Daira Hopwood <daira@jacaranda.org>
 2021-05-14 11:16:34 +08:00
therealyingtong d5a8927316 Remove unnecessary to_base() 
Co-authored-by: Daira Hopwood <daira@jacaranda.org>
 2021-05-14 11:16:34 +08:00
therealyingtong 77f1299d9b Add derive_nullifier() method 2021-05-14 11:16:34 +08:00
Daira Hopwood 8ce3cfb8d9 Add orchard_key_components.py. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2021-05-14 11:16:34 +08:00
ying tong 99e7184038
Remove whitespace in note_commit and commit_ivk personalisations 
Co-authored-by: str4d <jack@z.cash>
 2021-05-13 12:57:07 +08:00
str4d 232aaa3474
Update f4jumble.py 
Co-authored-by: Daira Hopwood <daira@jacaranda.org>
 2021-05-12 13:06:52 +01:00
Jack Grigg bd1eef9c16 Test vector generator for F4Jumble 2021-05-12 08:16:06 +08:00
therealyingtong e0b8fd639a Return base field element from commit_ivk() 
Co-authored-by: Jack Grigg <jack@electriccoin.co>
 2021-05-11 20:06:32 +08:00
ying tong fb08eeeb39 Pass rand instead of randbytes 
Co-authored-by: str4d <jack@z.cash>
 2021-05-09 12:46:09 +08:00
Daira Hopwood af04017407 orchard_pallas.py: add constants for Scalar. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2021-05-09 12:44:40 +08:00
Daira Hopwood 29c40dc885 orchard_commitments.py and orchard_group_hash.py: type fixes. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2021-05-09 12:44:40 +08:00
Daira Hopwood 929692ecdc Rename sapling_utils.py to utils.py. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2021-05-09 12:44:39 +08:00
Daira Hopwood a7a1e5b217 Use rejection sampling to implement `random` for `Fp` and `Scalar`. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2021-05-09 12:41:18 +08:00
therealyingtong 72cae20b61 Add Orchard commitments 
HomomorphicPedersenCommit -> ValueCommit
SinsemillaCommit -> NoteCommit
SinsemillaShortCommit -> CommitIvk
 2021-05-09 12:41:18 +08:00
ying tong bd7c367590 Apply suggestions from code review 
Co-authored-by: str4d <jack@z.cash>
 2021-05-09 12:41:18 +08:00
therealyingtong 43de24d88c Add Orchard generators 2021-05-09 12:41:18 +08:00
str4d 03157edaf2
Merge pull request #27 from zcash-hackworks/poseidon 
Poseidon implementation
 2021-05-08 19:54:01 +01:00
str4d deee246420
Add numpy dependency to README 2021-05-09 06:53:31 +12:00
str4d cb9348e7a9
Apply suggestions from code review 2021-05-08 19:51:33 +01:00
ying tong bb16eca2c0 Only return first state element from Poseidon hash 
Co-authored-by: str4d <jack@z.cash>
 2021-05-07 12:59:38 +08:00
therealyingtong 25f5ccd445 Generate Poseidon hash test vectors 2021-05-07 12:58:33 +08:00
therealyingtong 6184981ccd Generate Poseidon perm test vectors 2021-05-07 12:58:33 +08:00
therealyingtong 99feaed0f4 Render array of bytearrays in tv_output 2021-05-07 12:58:33 +08:00
therealyingtong 48fca9ad62 Add Poseidon implementation 2021-05-07 12:58:33 +08:00
ying tong b2c074a8d1
Merge pull request #21 from zcash-hackworks/orchard-merkle-crh 
Add Orchard MerkleCRH
 2021-05-07 01:38:32 +08:00
Daira Hopwood 5a820ad113 Fix length of layer prefix in orchard_merkle_tree.py. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2021-05-06 16:14:28 +01:00
therealyingtong c73aabd641 Add Orchard MerkleCRH 2021-04-30 12:20:37 +08:00
str4d 0cc31479cf
Merge pull request #17 from zcash-hackworks/sinsemilla-test-vectors 
Add iso-Pallas, SWU hash-to-curve, and Sinsemilla
 2021-04-29 02:20:39 +01:00