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2016-08-28ringct: remove unused codemoneromooo-monero1-245/+0
2016-08-28ringct: pass structure by const ref, not valuemoneromooo-monero2-2/+2
2016-08-28ringct: use memcpy/memset instead of handwritten loop where appropriatemoneromooo-monero1-29/+11
2016-08-28ringct: remove spurious copiesmoneromooo-monero1-24/+4
2016-08-28rct: faster Cryptonote/rct conversionsmoneromooo-monero1-8/+8
2016-08-28rct: early out on failure on verRangemoneromooo-monero1-3/+5
2016-08-28ringct: use Cryptonote serialization to hash non prunable datamoneromooo-monero1-21/+9
2016-08-28New "Halfway RingCT" outputs for coinbase transactionsmoneromooo-monero1-2/+7
When RingCT is enabled, outputs from coinbase transactions are created as a single output, and stored as RingCT output, with a fake mask. Their amount is not hidden on the blockchain itself, but they are then able to be used as fake inputs in a RingCT ring. Since the output amounts are hidden, their "dustiness" is not an obstacle anymore to mixing, and this makes the coinbase transactions a lot smaller, as well as helping the TXO set to grow more slowly. Also add a new "Null" type of rct signature, which decreases the size required when no signatures are to be stored, as in a coinbase tx.
2016-08-28rct: log why verification failsmoneromooo-monero1-9/+13
and remove some unnecessary variables in the checking code
2016-08-28rct: serialize txnFee as varintmoneromooo-monero1-1/+1
2016-08-28rct amount key modified as per luigi1111's recommendationsmoneromooo-monero4-42/+12
This allows the key to be not the same for two outputs sent to the same address (eg, if you pay yourself, and also get change back). Also remove the key amounts lists and return parameters since we don't actually generate random ones, so we don't need to save them as we can recalculate them when needed if we have the correct keys.
2016-08-28rct: rework v2 txes into prunable and non prunable datamoneromooo-monero2-31/+43
Nothing is pruned, but this allows easier changes later.
2016-08-28rct: rework the verification preparation processmoneromooo-monero2-63/+77
The whole rct data apart from the MLSAGs is now included in the signed message, to avoid malleability issues. Instead of passing the data that's not serialized as extra parameters to the verification API, the transaction is modified to fill all that information. This means the transaction can not be const anymore, but it cleaner in other ways.
2016-08-28rct: change the simple flag to a typemoneromooo-monero2-10/+14
for future expansion
2016-08-28rct: avoid the need for the last II elementShen Noether3-33/+44
This element is used in the generation of the MLSAG, but isn't needed in verification. Also misc changes in the cryptonote code to match, by mooo.
2016-08-28rct: do not serialize senderPk - it is not used anymoremoneromooo-monero1-1/+1
2016-08-28rct: make the amount key derivable by a third party with the tx keymoneromooo-monero5-24/+52
Scheme design from luigi1114.
2016-08-28rct: do not serialize public keys in outPkmoneromooo-monero3-17/+29
They can be reconstructed from vout
2016-08-28rct: use the already defined H where possiblemoneromooo-monero1-2/+1
Found by luigi1111w
2016-08-28port get_tx_key/check_tx_key to rctmoneromooo-monero2-8/+10
2016-08-28integrate simple rct apimoneromooo-monero3-67/+76
2016-08-28ringct: optimization/cleanup of hash functionsShen Noether3-22/+45
2016-08-28ringct: "simple" ringct variantShen Noether5-3/+249
Allows the fake outs to be in different positions for each ring. For rct inputs only.
2016-08-28ringct: fix size unit mismatch calling keccakmoneromooo-monero1-1/+1
2016-08-28ringct: do not serialize what can be reconstructedmoneromooo-monero3-21/+43
The mixRing (output keys and commitments) and II fields (key images) can be reconstructed from vin data. This saves some modest amount of space in the tx.
2016-08-28ringct: catch errors from ge_frombytes_vartimemoneromooo-monero1-11/+12
2016-08-28ringct: add missing size check for ecdhInfomoneromooo-monero1-0/+1
2016-08-28ringct: change asserts to return false for boolean functionsmoneromooo-monero1-10/+10
2016-08-28add rct to the protocolmoneromooo-monero1-15/+23
It is not yet constrained to a fork, so don't use on the real network or you'll be orphaned or rejected.
2016-08-28ringct: add functions to commit to an amountmoneromooo-monero2-0/+21
One to commit to an amount with zero key (for use with fake commitments for pre-rct outputs), and one with an arbitrary key (for rct outputs).
2016-08-28make rct tx serialization workmoneromooo-monero1-0/+48
It may be suboptimal, but it's a pain to have to rebuild everything when some of this changes. Also, no clue why there seems to be two different code paths for serializing a tx...
2016-08-28ringct: allow no outputs, and add tests for this and feesmoneromooo-monero1-2/+0
2016-08-28ringct: make fee optionalmoneromooo-monero1-2/+9
2016-08-28ringct: txn fee stuffShen Noether3-13/+24
2016-08-28ringct: new {gen,decode}Rct APIs for conveniencemoneromooo-monero2-11/+27
A new version of genRct takes the mixRing as parameter, instead of the inPk. inPk are part of the mixRing, and it is cleaner to pass the mixRing data than to fetch it from the RingCT code. A new version of decodeRct also returns the mask. Also, failure to decode throws, so errors are properly detected.
2016-08-28ringct: add more convenience functionsmoneromooo-monero1-4/+14
2016-08-28ringct: add convenience functions to bridge ringct and cryptonotemoneromooo-monero1-0/+5
2016-08-28ringct: restore verRange check in debug modemoneromooo-monero1-1/+1
2016-08-28ringct: add check for destinations/amount size being equalmoneromooo-monero1-0/+1
2016-08-28ringct: fix off by 1 in mixin usagemoneromooo-monero1-3/+3
2016-08-28ringct: simplify random key generationmoneromooo-monero1-7/+2
2016-08-28ringct: cosmetic fixesShen Noether4-46/+9
Ported from Shen's RingCT repo
2016-08-28ringct: changes to hashToPointSimple to calcualte H2 valuesShen Noether1-0/+5
Ported from Shen's RingCT repo
2016-08-28ringct: compare keys with bitwise equality, not crypto opsShen Noether1-7/+6
Ported from Shen's RingCT repo
2016-08-28ringct: fix size argument to cn_fast_hashShen Noether1-1/+1
Ported from Shen's RingCT repo
2016-08-28Fix sc_0 to skGen in ProveRangeShen Noether1-1/+1
2016-08-28ringct: add a few consts where appropriatemoneromooo-monero2-6/+6
2016-08-28tests: more ringct range proof testsmoneromooo-monero1-1/+1
2016-08-28rct: add serialization machinery to rct typesmoneromooo-monero1-10/+32
2016-08-28serialization: declare do_serialize specializations before usemoneromooo-monero1-1/+1
This lets my gcc picks those instead of the generic template where appropriate (and then fail since std::vector<something> does not have a serialize method.
2016-08-28Added note on generating H2Shen Noether1-1/+2
2016-08-28Fixed missing last index H2Shen Noether1-1/+2
2016-08-28ringct: lock access to the PRNGmoneromooo-monero1-2/+2
2016-08-28ringct: add simple input validationmoneromooo-monero2-32/+74
Throw when inputs aren't the expected size.
2016-08-28ringct: add convenience operators to keymoneromooo-monero1-0/+4
2016-08-28ringct: import of Shen Noether's ring confidential transactionsmoneromooo-monero9-0/+2374
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