5 ms·
I would say probably not, since there were only 4 variations of a simple substitution cypher, e.g. you could encrypt some text with option 1-4, and to decrypt y
by ConcernedCoder 8y ago
I would say probably not, since there were only 4 variations of a simple substitution cypher, e.g. you could encrypt some text with option 1-4, and to decrypt you picked option 1-4... i.e. anyone could decrypt using the barbie typewriter and a maximum of 4 attempts... not really secure at all.
- boomboomsubban 8y ago>simple substitution cypher And for those that are unaware, substitution ciphers have been unsecure for over a millennium now. So relying on nobody guessing you used a Barbie typewriter isn't an option either.
- lucb1e 8y agoIt's much worse than that. Simple substitution ciphers are as secure as writing in a custom font: you only have to figure out which letter is represented by each symbol. This is usually not difficult when using frequency analysis or, heck, even brute force with some dictionary lookups to see which attempt contained the most existing words.