The atbash cipher is a very simple substitution cipher for the Hebrew and Latin alphabets. In this cipher, the first letter is replaced by the last letter, the second letter replaced by the second-to-last letter, and so on (e.g., A = Z, B = Y, etc.).
mligsgsrigbgdluligblmvavilulfigsivv
dvhglmvlmvulfigsrigblmvgsivvavilgdl