SHARE

TWEET

# Untitled

a guest
Jul 28th, 2016
184
Never

**Not a member of Pastebin yet?**

**, it unlocks many cool features!**

__Sign Up__- ‘Recursive’ Algorithms that naturally give low frequencies of repeats
- By repeats we mean the low numbers of a rune followed by the same rune, http://imgur.com/eAVCeeC
- 1. Example Plain-Text (PT):
- FOR ALL THAT LIUES IS HOLY. AN INSTRUCTION COMMAND YOUR OWN SELF.
- 2. Choose a shift that maps a low frequency rune to 0, for example IO = 0 (remember to preserve the order from the Gematria Primus):
- F->27, U->26, TH->25, O->24, R->23, C->22, G->21, W->20, H->19, N->18, I->17, J->16, EO->15, P->14, X->13, S->12,
- T->11, B->10, E->9, M->8, L->7, (I)NG->6, OE->5, D->4, A->3, AE->2, Y->1, IO->0, EA->28
- PT = {27,24,23},{3,7,7},{25,3,11},{7,17,26,9,12},{17,12},{19,24,7,1},{3,18},{17,18,12,11,23,26,22,11,0,18},{22,24,8,8,3,18,4},{1,24,26,23},{24,20,18},{12,9,7,27}
- 3. Choose a key the length of the message ,e.g. the primes:
- Key = 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229
- 4. Encryption Algorithm: calculate cipher text (CT) from PT and key, n is the index we iterate over (n=0 to length of PT)
- if n = 0
- CT[n] = ( PT[n] * key[n] ) % 29
- else
- CT[n] = ( PT[n] * key[n] + CT[n-1] ) % 29
- giving:
- CT = 25, 10, 9, 1, 20, 24, 14, 13, 5, 5, 10, 15, 7, 1, 17, 15, 5, 19, 24, 8, 24, 25, 15, 22, 26, 6, 26, 24, 15, 11, 11, 20, 18, 19, 22, 12, 19, 24, 25, 24, 28, 7, 21, 13, 9, 24, 4, 10, 4, 10
- Notice the CT has repeats (same number twice in a row) ONLY where the low frequency rune, IO, is, OR when key[n] = 0. Some runes are very infrequent in runeglish and so you can naturally get a low number of repeats in the CT with a method such as this. (This is the most simple algorithm I can think of that demonstrates this property, there are others)
- 5. Decrypting: To reverse the algorithm you need to work backwards, –n is the last part of the CT, and solve:
- (CT[-n]-CT[-n-1] + L * 29 ) / key[-n] = PT[n]
- Where PT[n] and L must be integers

RAW Paste Data

We use cookies for various purposes including analytics. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy.