Published On: Fri, Jul 8th, 2016

Google Experimenting with Crypto for the ‘Post-Quantum Era’

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What happens to cryptography once quantum computers are everywhere? Will it still be possible to keep encrypted systems — like the Bitcoin network — secure?
Also read: The Halving Month Is Here; What Will Happen to the Bitcoin Price?
This week, Google addressed the question with a blog post titled, “Experimenting with Post-Quantum Cryptography,” which looks at how possible computing speeds in the future could compromise encryption, even today.
Quantum computing, long a computer science holy grail, promises to increase processing speeds on data operations exponentially. Rather than coding data into binary bits that must be either “1” or “0,” a quantum computer would theoretically use quantum bits (“qubits”) capable of existing in multiple states at the same time.
While this would have obvious benefits for almost every computer application in existence today — and even future applications — it presents a threat to any program that relies on cryptographic algorithms for protection, such as encrypted messages and bitcoin wallets.
Remember how it used to be OK to have a 5-letter password? Now, it’s advisable to have 20 or more characters, varying between numbers, symbols, and both upper and lowercase letters. …

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