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206 Commits

Author SHA1 Message Date
Daira Hopwood b2ef4732af Don't mention s in Coins section; it's confusing given that COMM^s no longer exists. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-03 15:24:45 +00:00
Daira Hopwood d3b2bfe5fb Improve presentation of decryption by viewing key holder; define \bot. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-03 14:01:39 +00:00
Daira Hopwood 9ad8d7ee50 Improve presentation of P^disclose, fix a use-before-definition, 
and correct an N^new -> N^old.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-03 14:00:52 +00:00
Daira Hopwood e634b9ceb1 Viewing key optimizations. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-02 16:09:52 +00:00
Daira Hopwood d3b0cfd649 Correct confusion between N^new and N^old in decryption by a viewing key holder, 
and add a clarification about a viewing key holder acting as a recipient.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-02 15:29:37 +00:00
Daira Hopwood 9ba83513bb Fix length of r. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-03-02 00:15:43 +00:00
Daira Hopwood f5ab4ef51d Ensure that a viewing key holder can decrypt the value of the old coin. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-29 14:19:35 +00:00
Daira Hopwood 80dcdeef4f "additional data" -> "associated data". 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-28 11:25:41 +00:00
Daira Hopwood d7dd20d281 Wording improvement. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-27 23:40:01 +00:00
Daira Hopwood 65ebefd7e8 Merge "Raw Encoding" subsubsections into their parent, and correct a section title. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-27 23:39:12 +00:00
Daira Hopwood f3041d4e07 The viewing key holder should check epk. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-27 21:14:39 +00:00
Daira Hopwood 9611e0b35b The arguments to Curve25519 multiplication were consistently the wrong way round. 
Also, add the base point argument to the computation of pk_enc from sk_enc.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-27 21:12:50 +00:00
Daira Hopwood c6ec1e0e07 Note about some fields not being constrained in the circuit. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-27 20:58:39 +00:00
Daira Hopwood a816d1fd18 Correct an obsolete paragraph relating a_sk and a_pk. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-27 20:38:58 +00:00
Daira Hopwood 0770ff87dc Acknowledgements. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-27 00:54:33 +00:00
Daira Hopwood 0545c5b9ca Work in progress on "Differences from Zerocash" section. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-27 00:54:06 +00:00
Daira Hopwood 98398f0385 Update Pour statement for viewing keys. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-27 00:52:14 +00:00
Daira Hopwood a2d625f1b2 Merge branch '738.fix-internalh-collision.0' into 406.viewing-keys.1 
Includes other fixes.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-26 17:22:59 +00:00
Daira Hopwood ce18d51650 Proposed fix for domain separation and truncation. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-26 16:36:59 +00:00
Daira Hopwood e7ad03ac52 The nonce input to the AEAD isn't long enough, so derive K^disclose_i using a PRF instead. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-26 01:56:04 +00:00
Daira Hopwood abb9da9937 Fix a long line. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-26 00:21:25 +00:00
Daira Hopwood f0c24c113e Merge branch '738.fix-internalh-collision.0' into 406.viewing-keys.1 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-26 00:17:19 +00:00
Daira Hopwood e20d0dd437 Fix for InternalH collision attack. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-26 00:02:11 +00:00
Daira Hopwood 1d03b32575 Fix order of arguments to nonce in Pour statement. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-25 23:44:44 +00:00
Daira Hopwood 14e2428c66 Include security@z.cash address. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-25 23:41:47 +00:00
Daira Hopwood e2d08d1073 Fix the definition of P^shared. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-25 23:39:20 +00:00
Daira Hopwood 91ecf4ff93 Fix keystream reuse bug found by Taylor. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-25 23:38:31 +00:00
Daira Hopwood 7719e708c7 Fixes to Pour statement. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-25 21:42:28 +00:00
Daira Hopwood 19eb032dac Fixes to encryption section. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-25 21:42:00 +00:00
Daira Hopwood dc4e99389e Add back some information that was lost in a previous refactoring. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-25 19:43:03 +00:00
Daira Hopwood 0e3aee41ac Fix encodings to take into account viewing keys. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-25 19:41:06 +00:00
Daira Hopwood 36340df6c2 Rearrange sections; macro cleanups. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-25 18:32:18 +00:00
Daira Hopwood 3576398cfb WIP: encryption and key derivation changes for viewing keys. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-25 17:13:31 +00:00
Daira Hopwood d33c441c91 Makefile: protocol.pdf depends on key_components.pdf. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-25 17:12:56 +00:00
Daira Hopwood 50dcb686f0 Define 1..N notation. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-25 17:12:28 +00:00
Daira Hopwood 0db3ecc2ad Add comments about changes in coin validity due to blockchain evolution. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-25 17:10:26 +00:00
Daira Hopwood a8468efb58 More WIP. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-17 02:03:50 +00:00
Daira Hopwood 6a2713ec02 WIP toward changing the disclosure ciphertext to symmetric encryption. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-17 01:57:21 +00:00
Daira Hopwood 0e43170229 New key_components diagram. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-17 00:58:02 +00:00
Daira Hopwood 2d924b2fbc Add key_components diagram. 2016-02-16 20:08:52 +00:00
Daira Hopwood a7e10012f7 Work in progress for viewing key support. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-16 20:07:31 +00:00
Daira Hopwood 9ed6ece058 Add conformance definitions and Caution section. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-16 19:49:37 +00:00
Daira Hopwood e58b268d5d Correct i to i-1 in the PRF inputs. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-16 19:47:27 +00:00
Daira Hopwood 270959b5cd Add make target that makes the PDF unconditionally. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-16 19:45:29 +00:00
Daira Hopwood b3b34c21f0 Add table of contents and version. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-11 18:54:23 +00:00
Daira Hopwood 7f00921967 Change coin commitments in Merkle tree diagram back to cm. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-11 18:37:28 +00:00
Daira Hopwood 63a13665b7 Highlight changes for Faerie Gold fix. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-11 18:21:39 +00:00
Daira Hopwood 8b3f18bbe3 Correct an error in the definition of PRF^rho. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-11 16:29:42 +00:00
Daira Hopwood dd3464441a Proposed fix for Faerie Gold attack -- WIP. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-11 16:28:59 +00:00
Daira Hopwood 0d8ca188fe Formatting cosmetics. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-11 16:27:55 +00:00
Daira Hopwood f169514c65 Highlight changes from original Zerocash. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-11 15:04:56 +00:00
Daira Hopwood 55c631d37f Correct the length of pk_enc in a raw-encoded address. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-09 00:51:25 +00:00
Daira Hopwood e30bd3e555 Clarification of another difference from crypto_box_seal. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-07 21:55:20 +00:00
Daira Hopwood 0329a2e768 Cosmetics. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-07 21:54:57 +00:00
Daira Hopwood eafecf2ad9 Proposed fix to issue raised by Matthew Green about defence in depth. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-07 11:38:10 +00:00
Daira Hopwood c822d433d0 Reorder definitions to avoid a forward reference. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-07 11:26:30 +00:00
Daira Hopwood c3646a4cd4 Fix formatting and warnings. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-07 11:26:13 +00:00
Daira Hopwood d8cf2eae83 Switch from blake2b to SHA-256 for nonce computations. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-07 11:25:51 +00:00
Daira Hopwood 3d56cf291a Memo field fixes. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-07 11:25:51 +00:00
Daira Hopwood 906975de12 More references. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-07 11:25:30 +00:00
Daira Hopwood 93d4303968 Proposed crypto_box encryption. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-07 11:25:30 +00:00
Daira Hopwood d4b5d5eed9 Fix truncation in PRF^sn and PRF^pk. closes #686 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-02 23:40:44 +00:00
Daira Hopwood ce5cff9eeb Add "Differences from the Zerocash paper" section. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-02-01 22:08:13 +00:00
Daira Hopwood 131642e53b Adjust formatting of raw encoding layouts. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-29 00:42:16 +00:00
Daira Hopwood 5456ddf2a6 Fix size of r. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-29 00:41:41 +00:00
Daira Hopwood c080e5eda2 Merge branch 'nathan-wip' of github.com:Electric-Coin-Company/zips into daira-wip 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-29 00:17:04 +00:00
Nathan Wilcox 38290a7a86 Several comments and a few rewrites while pairing with Daira. 2016-01-28 16:10:30 -08:00
Daira Hopwood 9cddba31fc Improve paragraph spacing and remove paragraph indent. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-29 00:00:21 +00:00
Daira Hopwood a7d75007fa Clarify what "collision-resistant across all x" means. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-28 23:55:17 +00:00
Nathan Wilcox b3da327877 Add a README with some barebones build dependency instructions. 2016-01-28 15:16:08 -08:00
Nathan Wilcox cc97884b1b Add a README with some barebones build dependency instructions. 2016-01-28 15:15:43 -08:00
Daira Hopwood 304dd6be27 Make the order of fields in a coin tuple consistent. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-28 22:41:29 +00:00
Daira Hopwood 19fb4e39ef Use Leading and Trailing functions; fix alignment of bit diagrams. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-28 22:33:43 +00:00
Daira Hopwood ce6109f730 Define Leading and Trailing functions. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-28 22:33:13 +00:00
Daira Hopwood 592c06c263 Fix PRFpk notation, clarify truncation, and answer a question about PRFsn. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-27 13:21:11 +00:00
Daira Hopwood aa0087f501 Terminology tweak. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-27 00:49:13 +00:00
Daira Hopwood a9ef6f47ab We only use unsigned integers, and there should be no unspecified formats 
(except Pour proofs, currently).

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-27 00:48:52 +00:00
Daira Hopwood d9fea514aa Formatting stuff. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-27 00:34:42 +00:00
Daira Hopwood 74e6963e96 Add question about collision-resistance of PRF^sn. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-27 00:33:48 +00:00
Daira Hopwood fe003d4954 Fix references. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-27 00:32:57 +00:00
Daira Hopwood 862b201906 preceding -> immediately preceding. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-26 23:40:53 +00:00
Daira Hopwood cf46f231e6 Simplify description of anchor constraints. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-26 23:36:53 +00:00
Daira Hopwood d2df941912 Add Base58Check reference. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-26 23:36:29 +00:00
Daira Hopwood 75eb8a4099 WIP 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2016-01-26 23:15:17 +00:00
Sean Bowe 620c06436c Remove outdated notes. 2016-01-20 13:38:22 -07:00
Daira Hopwood 48ca93a1d5 Be pedantic about what an ECIES public key is, and fix some font issues. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2015-12-23 02:14:05 +00:00
Daira Hopwood ca1c8fe504 Add 'make clean' target. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2015-12-23 02:13:11 +00:00
Daira Hopwood 2791823a6a Re-render the PDF. (make lied to me about it being up-to-date.) 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2015-12-23 00:04:13 +00:00
Daira Hopwood ef9ca8c023 Choose lead bytes. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2015-12-22 23:58:55 +00:00
Taylor Hornby 84d2cf08bc Render the PDF. 2015-12-22 16:31:11 -07:00
Daira Hopwood 22a38ec7ea Changes to reflect that not all fields in a bucket are encrypted. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2015-12-22 23:24:24 +00:00
Daira Hopwood edfaaf65cb Fix rho to be upright, not italic. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2015-12-21 18:46:33 +00:00
Daira Hopwood c94ba4914a Fix spelling of "two's complement". 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2015-12-21 18:11:49 +00:00
Sean Bowe 0279e3bcd6 Fix typo 2015-12-17 15:26:37 -07:00
Sean Bowe fe402e1267 Added Taylor to authors, added colors for more review notes. 2015-12-17 09:51:30 -07:00
Sean Bowe 1b1492ec40 Improvements to low-hanging fruit phrasing issues. 2015-12-17 09:34:46 -07:00
eli.ben.sasson 9fc091760e merge 2015-12-17 00:20:09 +02:00
eli.ben.sasson 4f8a2a8790 intial comments in tex 2015-12-17 00:18:22 +02:00
eli.ben.sasson 08b2b455d7 initial comments in tex file 2015-12-17 00:17:28 +02:00
Taylor Hornby 8cc631a782 Fix some terminology and improve some things. 2015-12-16 14:38:52 -07:00
Taylor Hornby c8665edd14 Add Makefile 2015-12-16 14:02:37 -07:00
Taylor Hornby 116a526835 Remove question and add sections for the cleartext addrs 2015-12-16 14:02:22 -07:00
Taylor Hornby a6f9c10223 Render the PDF 2015-12-16 13:55:23 -07:00
Taylor Hornby ec2a832ca1 Add encoding of public address, private key, buckets 2015-12-16 13:55:16 -07:00
Sean Bowe 506de22ce5 These bits are placed in the middle as per the zerocash paper. 2015-12-14 16:30:40 -07:00
Sean Bowe 8a35b0a57a Initial commit 2015-12-14 10:03:59 -07:00