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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Bitcoin-address-validation/Mathematica/bitcoin-address-validation.math Normal file
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@ -0,0 +1,10 @@
chars = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"; data =
IntegerDigits[
FromDigits[
StringPosition[chars, #][[1]] - 1 & /@ Characters[InputString[]],
58], 256, 25];
data[[-4 ;;]] ==
IntegerDigits[
Hash[FromCharacterCode[
IntegerDigits[Hash[FromCharacterCode[data[[;; -5]]], "SHA256"],
256, 32]], "SHA256"], 256, 32][[;; 4]]