So the SHA-1 collision guys say
"As a side result, this shows that it now costs less than 100k USD to break cryptography with a security level of 64 bits (i.e. to compute 2^64 operations of symmetric cryptography)."
But @tmbinc already cracked 56 bits for $1k 9 years ago.
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So $10K fixed and some amount of electricity.
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Definitely a lot less than $10k in electricity at household rates.
End of conversation
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