How Secure Is This? - maxtaco/oneshallpass GitHub Wiki

  • Expected 2^(1+58+7-1) = 2^65 calls to SHA-512 to crack.
  • SHA-512 is more expensive than SHA-1 to compute
  • At current difficulty, 2^31*1866391.3 hashes on average to get 50 Bitcoins
  • 1 Bitcon ~ $8.52 dollars
  • SHA1 costs about 508.52/(2^311866391.3) dollars, or roughly 2^(-43) dollars
  • Password will require 2^(65-43) = 2^22 or roughly $4 million to crack.
  • Upgrade to a 5-word passphrase, for $100 billion to crack.