Do you, or anyone, happen to know of a cypher-text analysis tool that will allow for example to quickly workout distributions of substrings, perform simply replacements and the like?
I guess I could code such a thing but my coding is pretty rusty.
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Edit: I found these but question is still open if someone has a good tool to suggest.
Left hand side:
Right hand side: There are lots of interesting features in this.I should add, cryptically, that there's more to the challenge, I believe, than simply meets the eye.