Blockchain Privacy – Part 3: Ring Signature Mixes

Now we’ve covered why privacy is essential for widespread cryptocurrency adoption, and how stealth addresses can help assist the pseudonymity (stealth addresses defined and explained in Part 2, pseudonymity discussed in Part 1), it’s time to explain how to combine cryptography and Ethereum’s smart contract functionality to add another layer of obfuscation to public blockchains! …

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Blockchain Privacy – Part 2: Stealth Addresses

Privacy In Part 1 we covered why privacy is essential for widespread cryptocurrency adoption, and concluded that neither Bitcoin nor Ethereum, or even ZCash is suitable for the task we’re wanting to solve: anonymity with efficiency. (Also the bonus property of needing no trusted setup)! COOL THING 1: STEALTH ADDRESSES The benefits of using stealth …

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D-Day For Z.Cash

Today the first ever truly anonymous crypto currency ZEC went live. The full P2P client can be downloaded from here [Linux only for now]. The total number of ZEC coins will be only 21 million, like in bitcoin. Zerocash also reproduces few other unreasonable properties known from bitcoin: bizarre monetary policy with inelastic monetary supply and block halving every …

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Controversy Around Profitability of AltCoin Investment

There is a considerable controversy around whether investing in a balanced basket of cryptocoins is a good idea. Two serious sources show that this sort of investment enjoys steady growth without a lot of downturns, cf. DLT10 Index and a recent detailed study which concentrates on a shorter period with excellent returns since Jan 2016 (cf. also …

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Extended Deadline – Blockchain Research Competition – Blockchain Student Paper Competition – Cash Prizes, Job Openings

We encourage students and young researchers to submit their paper or their thesis work to our research competition.   Submissions are extended until 31 October. Cash prizes will be awarded and winners will be invited to present their work at an international blockchain conference. More details here and here and here and here is the submission link (some older and recent …

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How Many 1024-bit Primes Have Backdoors?

So how did the NSA backdoored the Internet or did they??? New ground-breaking paper shows that DSA and DH mod P keys with 1024 bits are vulnerable to practical backdoors which can be exploited to break our secure communications. Few highlights: For such trapdoored primes the DL problem can be solved in 2 months by an academic cluster. The …

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