Welcome to the Transposition Cipher Machine!
Please choose:
1) encrypt text
2) decrypt text
3) brute force decrypt without the key
Please type your choice, 0 to end: 1
Please enter the text to encrypt: The quick brown fox jumps over the lazy dog.
Please type in a key: x.123.cat
Encrypted text:

"hb ezunphoerjry ou  qwmtdcf  .i segkool~T xva"

Welcome to the Transposition Cipher Machine!
Please choose:
1) encrypt text
2) decrypt text
3) brute force decrypt without the key
Please type your choice, 0 to end: 3
Please enter the text to attempt to decrypt: hb ezunphoerjry ou  qwmtdcf  .i segkool~T xva
Testing keys of length 1
Testing keys of length 3
Testing keys of length 5
Testing keys of length 9

My best guess for the top 5 decryption possibilities: 

The quick brown fox jumps over the lazy dog. (100%)

ceiq Thkufr wo bon jsmux op ret velh.ygd az~o (55.5556%)

cikThe quf o brown sox jump elver th.g~azy do (55.5556%)

kiThe quco  brownfosx jump lever th ~gazy do. (55.5556%)

kThe quico brown fox jumps lver the ~azy dog. (55.5556%)


Welcome to the Transposition Cipher Machine!
Please choose:
1) encrypt text
2) decrypt text
3) brute force decrypt without the key
Please type your choice, 0 to end: 0
Goodbye!