Your phrase en-/decoded:
- ROT13 ("rotate by 13 places"):
- A simple letter substitution cipher that replaces a letter with the 13th letter after it, in the alphabet. For example, HELLO becomes URYYB (or, conversely, URYYB becomes HELLO again).
- A ↔ N
- B ↔ O
- C ↔ P
- D ↔ Q
- E ↔ R
- F ↔ S
- G ↔ T
- H ↔ U
- I ↔ V
- J ↔ W
- K ↔ X
- L ↔ Y
- M ↔ Z
- It is a special case of the Caesar cipher which was developed in ancient Rome.
- —ROT13 on Wikipedia