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859 Commits

Author SHA1 Message Date
Daira Hopwood 34cf757891 Add the hashes of parameter files for Sapling. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-08-05 10:06:52 +01:00
Daira Hopwood af90f0c4af Add cross references for RedDSA batch verification appendix. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-08-05 10:06:26 +01:00
Daira Hopwood 7450495335 Cosmetics: fix a warning about Unicode in headings. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-08-05 10:03:46 +01:00
Daira Hopwood 996045013e Makefile: name the Sprout version as sprout.pdf and link protocol.pdf to the Sapling verison. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-08-05 10:02:24 +01:00
Daira Hopwood d5c79e2592 Put the change history back in the correct order (beta-23 and -24 were reversed). 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-08-05 08:54:03 +01:00
Daira Hopwood ff397a6aff Add a missing consensus rule for v4 transactions: if there are no Sapling spends or outputs, valueBalance MUST be 0. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-31 03:47:26 +01:00
Daira Hopwood 854f6eddcc Regenerate PDFs. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-27 22:05:29 +01:00
Daira Hopwood 2f0c68b616 Add an appendix on RedDSA batch verification. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-27 22:05:29 +01:00
Daira Hopwood 90692541aa Update RedDSA verification to use cofactor multiplication. 
This is necessary in order for the output of batch verification to match unbatched verification in all cases.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-27 22:05:29 +01:00
Daira Hopwood ea61325c25 Regenerate PDFs. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-18 11:20:32 +01:00
Daira Hopwood 4d8031f659 Make the Sprout version of the spec say [Sprout] in the version. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-18 11:20:32 +01:00
Daira Hopwood e1ee4e615e Updates to take account that Overwinter has activated. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-18 11:20:32 +01:00
Daira Hopwood 89c05c0303 The recommendation for transactions without JoinSplit descriptions to be v1 
applies only before Overwinter, not before Sapling.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-18 11:20:32 +01:00
Daira Hopwood 71617341c9 Wording improvements for the effect of upgrades on sighash. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-18 11:20:32 +01:00
Daira Hopwood c2b8ba2052 Rename nuzero macro names to overwinter. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-18 11:20:32 +01:00
Daira Hopwood 45f9005714 Add TODO to check whether the circuit sometimes omits curve checks. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-18 11:20:32 +01:00
Daira Hopwood f11a24afc3 Delete or clarify unused optimizations in Appendix A. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-18 11:20:32 +01:00
Daira Hopwood 6e4a9455df Cosmetics. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-18 11:20:32 +01:00
Daira Hopwood 128a4fc862 Cross-reference PRF^ock for Sapling encryption. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-18 11:20:32 +01:00
Daira Hopwood 53e6f29d18 Clarify the selection of ovk in sending Sapling notes. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-18 11:20:32 +01:00
Daira Hopwood 699a78e749 Clarify the use of cv^new and cm^new in sending Sapling notes. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-18 11:20:32 +01:00
Daira Hopwood b0b1f60cc2 Reword the conclusion from theorem A.3.4 for precision. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-18 11:20:32 +01:00
Daira Hopwood 0200f63ace Complete the proof of theorem A.3.4. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-18 11:20:32 +01:00
Daira Hopwood dcd929291a Add note about the nonsmall-order check on rk. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-18 11:20:32 +01:00
Daira Hopwood db3ea270c5 The \difference macro was not used consistently; use \setminus instead. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-07-18 11:20:32 +01:00
Daira Hopwood a633149c5d
Merge pull request #160 from str4d/140-zip-0143-examples 
Add examples from ZIP 143 test vectors
 2018-07-06 02:18:53 +01:00
Daira Hopwood 268f9c8cba Minor fixes to ZIPs 143, 201, 203 and 243. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:58:28 +01:00
Daira Hopwood 45b7cc8047 Regenerate PDFs. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:57:30 +01:00
Daira Hopwood 92eb6c5751 Correct the conformance requirement for fOverwintered. 
This addresses a Least Authority issue.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:49:49 +01:00
Daira Hopwood f3ba658772 Note which conformance requirements of BIP 173 (Bech32) apply. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:49:49 +01:00
Daira Hopwood da5909bff5 Improve acknowledgements section. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:49:49 +01:00
Daira Hopwood 911bc3a9ed Cosmetics. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:49:49 +01:00
Daira Hopwood 52428befa7 Correct an error in RedDSA.Verify: vk is given, not computed from sk. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:49:49 +01:00
Daira Hopwood 432e39ee4c Correct the argument that the sum of value commitments is in range. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:49:49 +01:00
Daira Hopwood 001474760a Corrections related to outgoing viewing keys and ciphertexts. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:49:49 +01:00
Daira Hopwood 398cc64619 Add section on signature hashing, and a note on malleability of proofs. 
Also describe the changes in sighash computation relative to Bitcoin.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:49:49 +01:00
Daira Hopwood be632b4a21 P2PKH addresses use a hash of a compressed, not an uncompressed ECDSA key representation. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:49:49 +01:00
Daira Hopwood d1a6e2809d Say that Sprout interstitial treestates form a tree. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:49:49 +01:00
Daira Hopwood e083d27e82 Add a consensus rule that valueBalance is in the range {-MAX_MONEY..MAX_MONEY}. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:49:48 +01:00
Daira Hopwood 4525a1fffd Refine the caveat about the claimed security of shielded transactions. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:49:48 +01:00
Daira Hopwood 7aa8765dc0 Enforce stronger constraints on the types of pk_d, ak, nk, cv, epk, and rk, and ensure esk is not zero when encrypting. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:49:43 +01:00
Daira Hopwood 0617ca2aae Instantiate PRF^ock, and correct some types. Also enforce that esk is canonical. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:48:25 +01:00
Daira Hopwood eb6a8c7d62 Type changes for cmu in an Output description. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:14:27 +01:00
Daira Hopwood 57f16ea6da Refactoring/type changes for commitment randomness and outputs. 
This also affects the type of Sapling note plaintexts.
Includes potential consensus changes (which *should* match the implementation)!

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:14:16 +01:00
Daira Hopwood cb730f241e Wording, cross-referencing, and minor type improvements. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:11:46 +01:00
Daira Hopwood 8dd6074164 More cosmetics. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:11:46 +01:00
Daira Hopwood 1f02902d6e Clarify that the square root notation refers to the positive square root. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:11:46 +01:00
Daira Hopwood 8c80decd3b Group Hash and DiversifyHash refactoring. Also fix an error in the definition of set difference. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:11:30 +01:00
Daira Hopwood f480f351b7 Generalize PRF^expand to accept an arbitrary-length input. 
Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:08:45 +01:00
Daira Hopwood 0334dde7a2 Resolve a potential ambiguity in use of the ?: notation by adding parentheses. 
This addresses a Least Authority comment.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
 2018-06-22 22:08:45 +01:00