Understanding Bitcoin is a one-way hash function should make sense because a hash function cannot be reversed. Once you understand that, it is hard to go back to thinking otherwise. The secure hash ...

What was blockchain technology originally intended for? It’s generally presumed that it was created in 2008 by Satoshi Nakamoto as part of his white paper, creating Bitcoin (BTC). Since Bitcoin would ...

Alt-coin/ A cryptocurrency that works similarly to Bitcoin but with modifications such as being able to process transactions faster. Blockchain/ A structure for storing data in which groups of valid ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Three years ago, Ars declared the SHA1 cryptographic hash algorithm officially dead after researchers performed the world’s first known instance of a fatal exploit known as a “collision” on it. On ...

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Security researchers have achieved the first real-world collision attack against the SHA-1 hash function, producing two different PDF files with the same SHA-1 signature. This shows that the algorithm ...