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2019 Commits

Author SHA1 Message Date
Daira Hopwood 4036a5d6e4 Make t 8 bits. 
(This is not a protocol change, it's just simpler because it avoids endianness issues.)

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-29 01:18:53 +01:00
Daira Hopwood fedfc3c315 Fix an endianness bug. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-29 01:17:36 +01:00
Daira Hopwood 6f049a2c8d Add restriction that either vpubOld or vpubNew is zero. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-29 01:16:06 +01:00
Daira Hopwood c338fd141b Pour descriptions go in transactions, and only indirectly in blocks. fixes #20 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-29 00:40:09 +01:00
Daira Hopwood 5bf271d993 ephemeralKey is a change from Zerocash. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-29 00:31:11 +01:00
Daira Hopwood 31ce718464 Fix endianness bug in an example. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-23 13:28:17 +00:00
Daira Hopwood 8b5c20cd38 Change i to be the first argument to KDF for consistency with other functions. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-22 20:40:52 +00:00
Daira Hopwood d4e95b73f6 Change KDF to SHA-512 and add hSig input. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-22 17:41:57 +00:00
Daira Hopwood 8b9851a431 Remove a_pk from note plaintexts. This also fixes a bug where the recipient 
would incorrectly use the decrypted a_pk to check the coin commitment, rather
than its own a_pk.

(The length of encCiphertexts was already computed assuming this change.)

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-20 23:36:54 +00:00
Daira Hopwood 5bbbb0bde6 Use standard AEAD_CHACHA20_POLY1305. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-20 23:32:01 +00:00
Daira Hopwood d98c941429 Switch to little-endian encoding, consistent with Bitcoin serialization. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-20 23:19:38 +00:00
Daira Hopwood 350c5ae598 DecryptCoin -> DecryptNote. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-20 20:37:43 +00:00
Daira Hopwood c55489fa2d Fix some macro uses, and rename rn to nf. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-20 20:29:42 +00:00
Daira Hopwood 5e408580c1 Remove "map" terminology; the spent nullifiers are a set at this level of abstraction. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-20 20:26:37 +00:00
Daira Hopwood d60fda0e3d Rename remnant (serial number) -> nullifier. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-20 19:48:19 +00:00
Daira Hopwood 0b0295e29e Fix some cases where macros were not used consistently. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-20 19:46:19 +00:00
Daira Hopwood 08e25a8b21 WIP - new terminology. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-18 21:09:24 +00:00
Daira Hopwood 0e6953a6eb WIP: Define types for serialized fields. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-18 01:20:44 +00:00
Daira Hopwood 5ebe7b31e0 Specify precisely the data to be signed. This includes a design change 
to use a single signature covering all of the transaction except
pourPubKey and pubSig.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-16 01:36:37 +00:00
Daira Hopwood a5096c755a Bibliography: cosmetics. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-16 01:34:45 +00:00
Daira Hopwood 57d94a0bf9 Specify precise encoding of ECDSA public key. Also improve description 
of how the public key is bound to the Pour statement.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-16 00:06:01 +00:00
Daira Hopwood 5d3b31b15f Cosmetics, re-render PDF. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-15 23:23:38 +00:00
Daira Hopwood 1bd4e4cfdb Make some subparagraphs into subsections. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-15 23:23:05 +00:00
Daira Hopwood 5a78817989 Reference libsnark for encoding of proofs. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-15 23:22:22 +00:00
Daira Hopwood 245c52036c randomSeed must be chosen independently at random for each Pour description. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-15 23:21:41 +00:00
Daira Hopwood 223f7d2e1e Be more precise about Pour transfers. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-15 23:20:46 +00:00
Daira Hopwood 87c502ffd3 Enforce canonical ECDSA signatures, and specify encodings (WIP). 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-15 23:20:17 +00:00
Daira Hopwood 23e66ae090 Change 'script*' variables to 'pour*', and add references. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-15 23:17:14 +00:00
Daira Hopwood 28b38b5eb9 Fix 'make clean'. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-15 23:13:51 +00:00
Daira Hopwood 10ac791004 Remove viewing keys (except for sk_enc) for now. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-13 02:16:30 +00:00
Daira Hopwood 42954ecdac Fill in more sections of "Differences from Zerocash". 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-13 01:23:04 +00:00
Daira Hopwood 3d04c384f1 Add Nathan Wilcox to authors. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-09 00:40:08 +00:00
Daira Hopwood 1b1e1f8456 Add lead byte to KDF input. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-07 21:08:14 +00:00
Daira Hopwood 95e6fc42cd Seriously, LaTeX, this paragraph is just fine. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-07 21:06:23 +00:00
Daira Hopwood a8ff6110e6 Adjust list spacing. (I'm picky about things like that.) 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-07 21:05:45 +00:00
Daira Hopwood e15a4fc0a4 Clarify that the nonce to AEAD_CHACHA20_POLY1305 is 96 bits, and the key 256 bits. 
fixes zips/#19

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-07 17:00:31 +00:00
Daira Hopwood c57d295a38 Fix definitions of a_vk and a_pk in Pour statement. fixes zips#18 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-07 16:52:15 +00:00
Daira Hopwood 64c91164ab Descriptions of scriptSig and scriptPubKey were the wrong way round. fixes zips#17 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-07 04:53:02 +00:00
Daira Hopwood 2fac159404 Fix index error in computation of hSig. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-07 04:38:51 +00:00
Daira Hopwood 26df1df754 Define some convenience macros to shorten 1..N^{old,new}. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-07 04:36:29 +00:00
Daira Hopwood 9bbae8ce2a Makefile: avoid error if protocol.aux doesn't exist. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-07 04:15:27 +00:00
Daira Hopwood a1b1cd62c3 Notation. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-07 03:38:00 +00:00
Daira Hopwood 6d25c4beb2 Be more precise about the specification of Curve25519 functions. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-06 23:26:40 +00:00
Daira Hopwood a9da411767 Rearrange domain separation to make room for greater pour arities, and 
state explicitly the domain separation convention for uses of the full hash.
Also bump the draft number.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-06 22:21:48 +00:00
Daira Hopwood 39e5992e60 Clarify endianness. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-06 22:19:12 +00:00
Daira Hopwood 608c0dbcb0 Fix potential attacks due to unclamped esk provided to a viewing key holder. 
(The other change from epk to epk* in the KDF input is just for clarity,
since we check that epk* = epk.)

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-06 10:34:34 +00:00
Daira Hopwood acf7cabe39 More PDF niceties. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-05 21:45:11 +00:00
Daira Hopwood 5e14841dce Make hyperref links go to the top of the page to avoid having to scroll up. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-05 21:28:15 +00:00
Daira Hopwood 9069509095 Generate PDF index. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-05 21:12:38 +00:00
Daira Hopwood c8e8846a53 More cosmetics. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-05 21:05:06 +00:00