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Author Topic: [XMR] Monero - A secure, private, untraceable cryptocurrency - 0.8.8.6  (Read 11424 times)

Monero

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We are moving away from Bitcointalk. For latest information, check out News, announcements and editorials on the official forum


Website: getmonero.org
Official Forum: forum.getmonero.org

Monero Economy  •  Monero Support* •  Monero Mining  •  Monero Speculation*  •  Monero Dev*  •  Monero large OTC
* self-moderated

#monero  •  #monero-dev  •  #monero-otc  •  #monero-markets  •  #monero-pools  •  QQ Group: 272729907
(Freenode)



Monero (XMR) is a new privacy-centric coin using the CryptoNote protocol (see below for more information). The open source reference implementation of CryptoNote was coded from scratch based on the CryptoNote reference implementation, and is not a fork of Bitcoin.

Monero aims to be a fungible and untraceable digital medium of exchange. It intrinsically has a higher degree of privacy than Bitcoin or any of its various forks. It was launched on April 18, 2014 (preannounced and no premine/IPO/etc.).

The official core team members are (in no particular order) - tacotime, eizh, smooth, fluffypony, othe, davidlatapie, NoodleDoodle

Announcements
Starting from March 16 2015, this list won't be updated anymore, please visit News, announcements and editorials

Monero Missives Archives: #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14 #15 #16 #17 #18 #19 #20 #21 #22 #23 #24 #25

Longer summary of each missive by Globb0 (outdated)
Other Archives: Blockchain Spam Attack post-mortem (part I and part II) - Block 202612 attack (update 1, technical update, patch) - Partial funding of Privacy Solutions for the C++ version of the I2P router (IP obfuscation)

Features

  • Untraceable payments
  • Unlinkable transactions
  • Blockchain analysis resistance
  • Adaptive parameters

Details in the CryptoNote white paper (Review of the CryptoNote white paper)


Specifications

  • PoW algorithm: CryptoNight [1]
  • Max supply: ~18.4 million [2]
  • Block reward: Smoothly varying [3]
  • Block time: 60 seconds
  • Difficulty: Retargets at every block

[1] CPU + GPU mining (about 1:1 performance for now). Memory-bound by design using AES encryption and several SHA-3 candidates.
[2] Actual number of atomic units is M = 264 - 1. A minimum subsidy may be implemented in the future with <1% annual inflation to preserve mining incentives.
[3] Uses a recurrence relation. Block reward = (M - A) * 2-20 * 10-12, where A = current circulation. Roughly 86% mined in 4 years (see graph).


Official downloads and links

Getting Started - Follow the guide to set up the software and start mining.

Official forum

Source and binaries
Also see below for optional GUI.

Latest release: 0.8.8.6


Blockchain (faster sync)
All updated live and always current.


Giveaways
Petitioning Cryptsy, Btc-e and others for Monero(XMR)

Donations for general development

XMR:
Code: [Select]
address (OpenAlias) donate.getmonero.org
address (full) 46BeWrHpwXmHDpDEUmZBWZfoQpdc6HaERCNmx1pEYL2rAcuwufPN9rXHHtyUA4QVy66qeFQkn6sfK8aHYjA3jk3o1Bv16em
viewkey: e422831985c9205238ef84daf6805526c14d96fd7b059fe68c7ab98e495e5703

BTC:
Code: [Select]
1FhnVJi2V1k4MqXm2nHoEbY5LV7FPai7bb
Monero Community Hall of Fame


External Projects


Alternative Clients
Please visit: How to choose a Monero client

Miners

Blockchain explorer


Others


Exchanges
Please visit Merchants and services directory

Pools
Spread around the hashrate! Join the smaller pools to improve network health.
Only open-source pools are mentioned, sorted by donation then fees. Fees include the donation, so miners won't pay more than the fees listed on the "fees" column. Misleading advertisement = undetermined ban ("undetermined" doesn't mean "forever", just "as long "as we deem it necessary"). Manager's note is a list with 100 character max, no exclamation points and no links. For updates, please contact Quanttek (same on IRC)
Beware: we are doing our best to stay current regarding fees, but always double-check on the pool itself.
We recommend to use only the bolded pools, which are up-to-date on important updates and security fixes. (When none are bolded, all are up-to-date)

URLMixinCountryManager (IRC)Donations (% of fees)Total FeesManager's note
backup-pool.com3CanadatriplefTotal: 73%Fees: 1.1% #backuppool IRC-channel, Charts ,10 minutes payout , instant support french/english
monerohash.com3USosenseiTotal: 37.5%Fees: 1.6%20Gbps DDOS protected, reliable, secure (https), up-to-date pool - USA - NY
xmr.prohash.net3NetherlandstrampkTotal: 0%Fees: 1.5%
pool.cryptoescrow.euLithuaniamind-lessTotal: 20%Fees: 1%Fast & helpful support, DDOS protected, Well maintained server.
xmr.hashinvest.net0Francesammy007Total: 10%Fees: 2%Transparent and stable pool with regular payouts. Desktop notifications, instant online support.
mro.poolto.be0BelgiumPCFilTotal: 8%Fees: 1.3%Stable dedicated server, hosted in datacenter, fast link, fast support
crypto-pool.fr0Franceonishin, superresistantTotal: 5%Fees: 2%
minexmr.com1FrancexnbyaTotal: 5%Fees: 2%
coolmining.clubHungaryhegemoOnTotal: 3%Fees: 1.5%#cmc-pool on freenode
monero.xminingpool.com0GermanyxminingTotal: 0%Fees: 0%First cryptonote-universal-pool implementation. FCN/MCN support.
cryptonotepool.org.ukUKCryptonotepoolUKTotal: 0%Fees: 1%Long running pool with reputation for reliability and support, all fees donated to xmr dev fund
moneropool.com4Luxembourgwallet42Total: 10%Fees: 1.9%First Monero pool, finding blocks reliable since May 2014, auto payments every 2 hours

last updated: 2015-05-10



FAQ
For a longer FAQ, check Community FAQ

What is CryptoNote?
CryptoNote is the technology that allows creation of privacy-centric cryptocurrencies. You can visit their website here. The level of anonymity provided by CryptoNote isn't possible with Bitcoin code base by design. Bytecoin (BCN) was the CryptoNote reference implementation, and XMR is based on BCN's code.

Two of the main features of CryptoNote are ring signatures that mask sender identities by mixing and one-time keys that make transactions unlinkable. Their combined effect gives a high degree of anonymity without any extra effort on the part of the user.

Unlike Bitcoin, your funds are not held in the address you give out to others. Instead, every time you receive a payment it goes to an unlinkable address generated with random numbers. When you decide to spend the funds in that one-time address, the amount will be broken down and the components will be indistinguishable from identical outputs in the blockchain.

For example if 556.44 XMR are sent, the protocol will break it down into 500 + 50 + 6 + 0.4 + 0.04 and a ring signature will be performed with other 500's, 50's, 6's, 0.4's, and 0.04's in the blockchain. Unlike the "CoinJoin" mixing method, CryptoNote mixes outputs not transactions. This means no other senders need to be participating with you at the same time or with the same amounts. Any arbitrary amount sent at any time can always be rendered fundamentally indistinguishable (a mathematical proof is given in the white paper).

The degree of anonymity is also a choice rather than decided by the protocol: do you want to be hidden as one among five or one among fifty? The size of the signature grows linearly as O(n+1) with the ambiguity so greater anonymity is paid for with higher fees to miners.

Ring signatures are explained below. Reproduced from CryptoNote:

A normal signature looks like this. There's only one participant, which allows one-to-one mapping.



A ring signature obscures identities because it only proves that a signer belongs to a group.



This allows a high level of anonymity in cryptocurrency transactions. You can think of it as decentralized and trustless mixing.



How does this compare to other anonymous solutions?
Ring signatures originate from the work of Rivest et al. in 2001 and the implementation in CryptoNote relies in particular on Fujisaki and Suzuki's work on traceable ring signatures. There are two other anonymity implementations currently available or in development. One is ZeroCoin/ZeroCash's use of zero-knowledge proofs. The others are based on gmaxwell's CoinJoin idea (such as mixing services for Bitcoin or the altcoin Darkcoin).

1. Comparison with ZeroCoin and ZKP-based approaches:
You can read about ZeroCoin and zero-knowledge proofs (ZKP) here. The ZK environment allows an anonymity set that includes everyone in the network because the validity of an output can be proven without knowing the corresponding public key until it is spent. The largest risk is that this is recent research-level cryptography that hasn't been subjected to years of cryptanalysis, so exploits may emerge down the road. Ring signatures are much simpler and more mature, with many peer-reviewed papers published over more than a decade.

Other issues with ZKP include the RSA private key used to initiate the accumulator, which must be trusted to be destroyed by the generating party. It also obscures the entire economy, not just sender/receiver identities. If the ZK system is compromised, then an attacker can continuously spend coins that don't exist using false proofs. This damage is hidden from everybody due to total blinding and consequently at any given time it's not possible to know if the network has already been compromised. There is a tradeoff between these inherent risks and the maximal anonymity set provided by ZKP. CryptoNote aims for a different balance through the dual layers of privacy provided by one-time keys and ring signatures.

2. Comparison with CoinJoin-based approaches:
XMR is more qualitatively similar to mixing implementations like CoinJoin. The differences arise in the departure from the Bitcoin protocol, which allows XMR to use new cryptography to provide decentralized and trustless mixing of superior quality. The critical problem with mixing services is the need to trust the operators. As an example, blockchain.info's mixer gives the following disclaimer: "However if the server was compromised or under subpoena it could be force to keep logs. If this were to happen although you haven't gained any privacy you haven't lost any either."

The CoinJoin-inspired Darkcoin performs mixing with selected "masternodes" since it still uses ordinary signatures that can be mapped one-to-one. The motivation is that a randomly selected node is less likely than a single service to exhibit bad faith (such as keeping logs) . In practice, a few VPS companies host the vast majority of nodes and this approach relies on the integrity and good behavior of these nodes. XMR's more fundamental cryptographic approach doesn't have these vulnerabilities and the quality of anonymity is much higher.

XMR's ring signatures are also far more secure and convenient than CoinJoin because they mix outputs not transactions. This means a transaction doesn't involve waiting around for other senders to mix with. Nor is a user restricted to mixing only if others are sending the same amount. Arbitrary amounts can be sent at any time without anyone else's participation. This feature makes a timing analysis of the blockchain useless.

Overview of a transaction
Bob decides to spend an output, which was sent to the one-time public key. He needs Extra (1), TxOutNumber (2), and his Account private key (3) to recover his one-time private key (4).

When sending a transaction to Carol, Bob generates its Extra value by random (5). He uses Extra (6), TxOutNumber (7) and Carol's Account public key (8) to get her Output public key (9).

In the input Bob hides the link to his output among the foreign keys (10). To prevent double-spending he also packs the Key image, derived from his One-time private key (11).

Finally, Bob signs the transaction, using his One-time private key (12), all the public keys (13) and Key Image (14). He appends the resulting Ring Signature to the end of the transaction (15).



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« Last Edit: July 29, 2015, 02:37:59 PM by Monero »

Monero

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We are new to Bitcoingarden but will monitor this thread and add new content as needed. Feel free to ask any question. Monero has many exciting projects in development.

Follow us on social media and visit getmonero.org to learn more


Principe

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A set of 6 monero avatars has been added to the altcoin avatar gallery. Enjoy!
★ GMC: GMe3xphPgHMVpKXtgUS1PDceQ9oZMePJr7      ★ ORB: oX9m3i3HUDr5hfyvWBJoyf8CMqajqMsivf    
★ WMC: wRarR72pv48RmqBwo6yNPwtdEpfRb7CXFL     ★ FUJI: FYLPULhtEogiXtW4xHUcShuxXf4oz2uPvk
★ OK: PPeXXxAzGHwLFr66MoqrqJjZZoHaXKVXNW         ★ XMG: 97fNfgmgSEQ4Gzq5e7pDuVR646Qinhh4on

secco

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  • Will Monero Market Capitalization be over $8M at the end of 1st half 2016? Yes or no? Dare to bet in Bitcoin?
    https://www.betmoose.com/bet/monero-over-8m-market-cap-end-of-1st-half-2016-1520?ref=scacco
    Hacker, Pirate, Milf Hunter, Owner of Bitcoin Garden

    Batono

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    Nice crypto.
     :)
    Add minergate.com pool.
    Good working.
    « Last Edit: May 08, 2016, 01:22:57 PM by Batono »

    LiveBitcoinNews·

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    TheMerkle·

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    Monero Surpasses US$2 Value Amidst DAO and Ethereum Discussions:
    http://themerkle.com/monero-surpasses-us2-value-amidst-dao-and-ethereum-discussions/

    Amazon

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    Monero (XMR) is a new privacy-centric coin using the CryptoNote protocol (see below for more information). The open source reference implementation of CryptoNote was coded from scratch based on the CryptoNote reference implementation, and is not a fork of Bitcoin.

    CryptoCoinsNews·

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    Re: [XMR] Monero - A secure, private, untraceable cryptocurrency - 0.8.8.6
    « Reply #8 on: August 30, 2016, 12:25:13 AM »

    hieu123

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    Re: [XMR] Monero - A secure, private, untraceable cryptocurrency - 0.8.8.6
    « Reply #9 on: August 30, 2016, 11:11:42 AM »
    I know XMR coin very early, but I have sold out since the price is too cheap! sad

    NewsBTC·

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    CoinTelegraph·

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  • KCN.Channel

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    Re: [XMR] Monero - A secure, private, untraceable cryptocurrency - 0.8.8.6
    « Reply #12 on: September 04, 2016, 07:29:57 PM »
    Livecoin to add Monero XMR/BTC and XMR/USD:


    CoinTelegraph·

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  • Re: [XMR] Monero - A secure, private, untraceable cryptocurrency - 0.8.8.6
    « Reply #13 on: September 05, 2016, 02:41:11 PM »

    trumpinsane

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    Re: [XMR] Monero - A secure, private, untraceable cryptocurrency - 0.8.8.6
    « Reply #14 on: September 05, 2016, 09:38:50 PM »
    Monero's 200% Gain On Darknet Marketplace Adoption:
    https://www.cryptocoinsnews.com/moneros-200-gain-darknet-marketplace-adoption/

    Yes, I was surprised to see AlphaBay now gives the "vendors" the option to accept Monero as well as Bitcoin.

     

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