aparler/RosettaCodeData
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Family Day update

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Ingy döt Net 2020-02-17 23:21:07 -08:00
parent aac6731f2c
commit 9ad63ea473
2442 changed files with 39761 additions and 8255 deletions
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13
Task/RSA-code/PowerShell/rsa-code.psh Normal file
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$n = [BigInt]::Parse("9516311845790656153499716760847001433441357")
$e = [BigInt]::new(65537)
$d = [BigInt]::Parse("5617843187844953170308463622230283376298685")
$plaintextstring = "Hello, Rosetta!"
$plaintext = [Text.ASCIIEncoding]::ASCII.GetBytes($plaintextstring)
[BigInt]$pt = [BigInt]::new($plaintext)
if ($n -lt $pt) {throw "`$n = $n < $pt = `$pt"}
$ct = [BigInt]::ModPow($pt, $e, $n)
"Encoded: $ct"
$dc = [BigInt]::ModPow($ct, $d, $n)
"Decoded: $dc"
$decoded = [Text.ASCIIEncoding]::ASCII.GetString($dc.ToByteArray())
"As ASCII: $decoded"