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Post-Quantum Cryptography: The First Steps

This article was prepared in cooperation with Microsec Ltd. Check out their blog for more interesting readings!

In a previous post, we discussed how the possibility of quantum attacks will affect the security of currently used cryptographic methods. As we saw, the post quantum security level of symmetric key methods including block ciphers and hash functions can reach the classical security level after doubling the key length. At the same time, we need alternative solutions instead of the ubiquitously used public key cryptosystems that are known to be breakable with scalable quantum computers. In this post, we comment on the crypto aspect of a recent breakthrough in quantum computing and briefly introduce the most important standardization effort of the post-quantum transition.

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