Crack SHA-1 can be much cheaper than expected with GPUs




A team of cryptologists, including Dutchman Marc Stevens of CWI, has shown that the SHA-1 standard can be effectively broken with GPUs. For a successful collision attack would suffice a relatively low amount of 100,000 euros, they estimate.

This is much lower than a few years ago it was predicted and the crypto analysts also insist on the standard to accelerate the phasing out. “We have the inner layer of SHA-1, the compression function, broken with GPUs,” Stevens says of the Cryptography Group Centre for Mathematics and Computer Science at Tweakers.


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