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Decentralised Information Black Market
This project forked from darkwallet/darkleaks
Decentralised Information Black Market
Decentralised Information Black Market ================================================================== "Darkleaks: Decentralised Cryptographic Information Black Market" Scheme by Peter Todd Code by Amir Taaki *Trustless provably fair information marketplace ############################### # WORK IN PROGRESS # ############################### * Distribute an encrypted file to the world. * Reveal some random section of the contents to prove the legitimacy of its contents using an algorithm for provably fair random selection to all parties. * People bid on the remaining parts. * Leaker redeeming funds automatically releases the decryption key allowing people to unlock the remaining parts of the file. * NO CENTRAL OPERATOR. * NO IDENTITY NEEDED. * NO INTERACTION WITH LEAKER REQUIRED. NOTE: Python bindings available! See python/example.py for more info. See EXPLANATION. Imagine once this is a simple piece of software for anyone to use (leaker: import file, add info, prove possession, bidder: verify, bid on chunk, unlock) of course running all over Tor with a nice use interface. Decentralised way to leak and get paid for any FILE or information: proprietary software, opensource software, corporate documents, firmware drivers, movies .etc I want to put out information and get $$$ $ dl_start TESTFILE 100 58 chunks created. Choose a future block height and a number of chunks to release. Announce them to the world. Announce the HEIGHT to the world. Make the _public_chunks/ directory publically available for download. "At block HEIGHT 341000 (Expected Nov 11 2014), I will prove possession of the files encrypted at this location: <torrent:...> by releasing 18 of the 58 chunks." -Leaker Once block hash becomes known: $ dl_prove TESTFILE 100 0000000000000000251ed5ba6bc475c13e15550475e4049e153a06b78b5a8a50 10 > proof_file $ cat proof_file 20 03e9fc6592798125ede112430e0b8beb30dacd9787f061883bf0bfa43e2ca8d378 34 036675c1d13a0112f28956e61475551c4bc53b8b5f6a8c0799fd9bb9f968cfc8ce 26 02267eeac444549d63836ff1d098de2b045d0f897849c50120645d6982463d0aa4 26 02267eeac444549d63836ff1d098de2b045d0f897849c50120645d6982463d0aa4 4 02096ec2b83982ddef77ce2e1628e90ff51ac04eaa9870326a38b3f15112577843 26 02267eeac444549d63836ff1d098de2b045d0f897849c50120645d6982463d0aa4 5 034633adfee376bed397acaa576196fff39fa8257080be0914e22cb92c2c90fe26 19 030c6624306007688c3f27e86b6add811c4a83f1bde2e728e62458c631f76359e5 21 028e3f035d4ec79e6afa3a8a90a95dda4f2ced04d1e5bb77321254bea3e5545ec5 33 03dd42d8d4134491aee30de991350547e87f100ac9d4e0a1ac6b94150cd2e2d2b8 39 023a9a24584ddd2788136128d2c9d84bf4fae9d8063fb691b16eaf62d55193d6b7 14 02c920dbd95487749ea8cd602ffe00c6f54f396e4e2a3c2cb0ee8507a761f7505f 5 034633adfee376bed397acaa576196fff39fa8257080be0914e22cb92c2c90fe26 Reveal these to your audience by distributing proof_file. They can use this file to unlock chunks and verify their authenticity. $ dl_unlock_all proof_file TESTFILE_public_chunks/ 0000000000000000251ed5ba6bc475c13e15550475e4049e153a06b78b5a8a50 Which is just a bash script that repeatedly calls for each line in the proof_file: $ dl_unlock TESTFILE_public_chunks/CHUNK.20 0000000000000000251ed5ba6bc475c13e15550475e4049e153a06b78b5a8a50 03e9fc6592798125ede112430e0b8beb30dacd9787f061883bf0bfa43e2ca8d378 // Creates CHUNK.20.decrypted The leaker can choose to reveal subsequent blocks by spending money send to the addresses in _public_chunks/ADDRS file. Spending money from those addresses, reveals the public key which is used to decrypt other chunks. To do that, the leaker simply needs to import these keys into his wallet and spend any funds at those addresses: $ dl_secrets TESTFILE 100 L265LXaXqh5TX97voQjz4Wo7Qpyoj8aCxotZYoYsG1vA72oiRTRN L4qJhBVQhHVWQDznzaUoiBkBBpZubJAoLuwhNGW1AdgUoLmXpZSC L37xPybVaSmBKdL6s3SgKUzsmAuBDRsws6oUjXKzz8TgNiypcsvi L2ob4c74UB6rbH7YPA1s6ATDLgrDHNtRB8rUhjL2xzqrXNztQzH6 KywiFkzENUKvuMrFGnbSN3PemGHM555QtXhRXAk3D8b1VJwRrc4X ... To find the pubkeys for an ADDRESS, use the tool dl_check_addr: $ ./dl_check_addr 1Ksv3HoCAn75uMfXtyWLgauUQv3gEa389A Fetching transaction... 02e1746dc1da27a5d4be9be4855016fc6fdd6f29b5a198239978dafdf7dd647656 Merge the decrypted files back together again using: $ ./dl_merge TESTFILE_public_chunks/ 58 (where 58 is the number of chunks... it's a simple bash script.) =============== note: there is now a UI located in app/ run this using `python2 app/main.py` this requires PyQt4 and Qt4 libs installed.
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