30 lines
688 B
Plaintext
30 lines
688 B
Plaintext
func invert_sha256(hash) {
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var letters = @('a'..'z')
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var job = func (prefix, hash) {
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variations_with_repetition(letters, 4, {|*a|
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var s = join('', prefix, a...)
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return s if (s.sha256 == hash)
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})
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return nil
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}
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letters.map {|prefix|
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job.ffork(prefix, hash)
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}.each {|f|
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with (f.wait) { return _ }
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}
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}
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var tests = %w(
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1115dd800feaacefdf481f1f9070374a2a81e27880f187396db67958b207cbad
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3a7bd3e2360a3d29eea436fcfb7e44c735d117c42d1c1835420b6b9942dd4f1b
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74e1bb62f8dabb8125a58852b63bdf6eaef667cb56ac7f7cdba6d7305c50a22f
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)
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tests.each {|t|
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var phrase = invert_sha256(t)
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say "#{t} : #{phrase}"
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}
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