The Discordians promulgated a code that might be a bit more mathematically resistant. It involves this series of steps:
CONVERSION:
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
STEP 1. Write out the message (HAIL ERIS) and put all the vowels at the end (HLRSAIEI)
STEP 2. Reverse order (IEIASRLH)
STEP 3. Convert to numbers (9-5-9-1-19-18-12-8)
STEP 4. Put into numerical order (1-5-8-9-9-12-18-19)
STEP 5. Convert back to letters (AEHIILRS)
They assert 100% unbreakability, which isn't true, but on a sufficiently long message one's anagram checker might give out, and then there is the task of ordering the words so generated...
Mind you, decryption by the intended recipient is equally complex.
Mind you, decryption by the intended recipient is equally complex.