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How to encrypt using Greek Letter-to-Number cipher?

The encryption phase consists of replacing each character of the Greek alphabet by its rank/position in the alphabet (the alphabet has 24 greek letters, each having a lowercase form and a capital form) that is:

1

α

2

β

3

γ

4

δ

5

ε

6

ζ

7

η

8

θ

9

ι

10

κ

11

λ

12

μ

13

ν

14

ξ

15

ο

16

π

17

ρ

18

σ

19

τ

20

υ

21

φ

22

χ

23

ψ

24

ω

Example:π becomes 16

How to decrypt Greek Number-to-Letter cipher?

The decryption phase consists of replacing each number N by the letter located at rank N in the Greek alphabet, thus 1 = α, 2 = β, ... 24 = ω.

Example:21 becomes φ

How to recognize greek alphabetic rank ciphertext?

The encoded message with greek alphabetic position is theoretically composed of numbers between 1 and 24 (as there are only 24 letters).

What are the variants of the Greek Letter-to-Number cipher?

As for A1Z26 with the Latin alphabet, several variants are conceivable as starting with 'α = 0' (instead of 1), using a deranged alphabet, etc.

Source code

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