Vigenère cipher: Difference between revisions
Added 11l
(Updated to work with Nim 1.4: added missing parameter types; replaced "toUpper" with "toUpperAscii". Also, some other modifications.) |
Alextretyak (talk | contribs) (Added 11l) |
||
Line 18:
* [[Substitution Cipher]]
<br><br>
=={{header|11l}}==
{{trans|C++}}
<lang 11l>F encrypt(key, text)
V out = ‘’
V j = 0
L(c) text
I !c.is_alpha()
L.continue
out ‘’= Char(code' (c.uppercase().code + key[j].code - 2 * ‘A’.code) % 26 + ‘A’.code)
j = (j + 1) % key.len
R out
F decrypt(key, text)
V out = ‘’
V j = 0
L(c) text
I !c.is_alpha()
L.continue
out ‘’= Char(code' (c.code - key[j].code + 26) % 26 + ‘A’.code)
j = (j + 1) % key.len
R out
V key = ‘VIGENERECIPHER’
V original = ‘Beware the Jabberwock, my son! The jaws that bite, the claws that catch!’
V encrypted = encrypt(key, original)
V decrypted = decrypt(key, encrypted)
print(original)
print(‘Encrypted: ’encrypted)
print(‘Decrypted: ’decrypted)</lang>
{{out}}
<pre>
Beware the Jabberwock, my son! The jaws that bite, the claws that catch!
Encrypted: WMCEEIKLGRPIFVMEUGXQPWQVIOIAVEYXUEKFKBTALVXTGAFXYEVKPAGY
Decrypted: BEWARETHEJABBERWOCKMYSONTHEJAWSTHATBITETHECLAWSTHATCATCH
</pre>
=={{header|Ada}}==
| |||