Unless there's a well known and obvious (but not documented here) restriction on the number of characters the machine will take, I think I've found a bug.

Upon giving this the following input:

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
[download]

(350 characters) I got the following output:

DITIPICFWBFFFMGUGUOKOUGWOFYKMCWCHQYMTCPDRWZGICMSVIJVNRBNGUCXORIBSLJCFK
CIZBHQYZGKJGDSZJYURTOPQOMHQSEZVTUPNOXJXHQELBLWUHKDNECWGYXBMFXFLGEWLSUC
MOVDXZMYFCLHQJFURTOPGZDHQIKWDJFVXVLNGNLCKZBBDBTYPJGCSSXSOEURTOPVEXZNIX
ELXZJLVELUNJDVHQMNWCFBCMFHQWZXGSMGDLJWYLBYWJFVBMWNSCCMHQSKDXKZGGRFKHLN
QIUDHLGBTJQOOVORHTVGMXBYDECXKTRODEAZEBJCWCRWNBDXYEPPRITTGTYHZCFBAHGCHN
[download]

So far so good...., however, attempting to decrypt that gives:

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAT
XOMPVBUNDGZYVJRYMYPHXDNTQWMYGQLVZZAEXSHOGNNGHDWOVHICLHIVKUIRRODSASILOO
[download]

Hmm.

After several other tests it appears that the machine can only return 279 clean alphabetical characters. Obviously since spaces and non-alphabetcial characters are ignored these can make it appear as if more clean characters are coming out, but that's not the case.

What's happening here?

jarich