This is my first cipher puzzle. Here is the ciphertext:
That's 171 characters, but this cipher can be applied to a plaintext of any length. I've replaced spaces with underscores to make it a little easier to work with.
As the title, says the cipher is a transposition cipher, meaning that the plaintext is an anagram of the ciphertext. The cipher logic has a geometric basis. You could write a computer program to decipher it, but it's simple enough to solve using pen and paper. That's all I'll give away for now.
I think this is a pretty hard one. Not NSA hard, but hard, so I anticipate adding hints over the coming days.
The geometric shape this puzzle is based on is a square. Remember that any text may be encoded with this scheme, not just messages with a square number of characters, so there will be gaps.
Hint 2, an example of a plaintext and resulting ciphertext:
IF YOU PLEASE GOOD SIR I THINK THAT A HINT IS IN ORDER IOLEOI_FI_TH_ITUI__EO_ESTRI_O_IDSADRNRPKSNAHNTYH__GA__
Hint 4, a shorter, more telling plain/cipher text:
HELP I NEED A HINT