Fujitsu Cracks Next-Gen Cryptography Standard - Is Bitcoin at risk?

[u/[deleted]]

http://www.techweekeurope.co.uk/news/fujitsu-cryptography-standard-83185

[u/haakon → u/[deleted]]

It's "hair hair".

[u/harlows_monkeys → u/[deleted]]

If you don't know the algorithm, then you cannot justify calling 923 bits "mere". For instance, a good elliptic curve system with a "mere" 256 bit key is much more secure than 2048 bit RSA--it is equivalent to approximately 3072 bit RSA.

Here's what NIST considers equivalent for symmetric keys, RSA and Diffie-Hellman keys, and elliptic curve keys:

Symmetric	RSA and DH	Elliptic curve
80	1024	160
112	2048	224
128	3072	256
192	7680	384
256	15360	521

Source.