# I think I'll stay here

I'm an emperor's son, but with none of his glory.

I have hardcore brothers who are still strong today.

When you hear my full name, you might think I'm unlucky

Or that I am going to fall into decay.

If I do my thing twice, there's not even a story...

I think I'll stay here, where I'm doing okay.

Who am I ?

Hint : added two new lines.

This riddle overviews the

rot13 - rotating the alphabet by 13 places - cipher.

I'm an emperor's son, but with none of his glory.

You are a special case of the (Julius) Caesar cipher, which shifts by 1 to 25.

I have hardcore brothers who are still strong today.

There are strong encryption ciphers which are difficult to break even with computing power.

When you hear my full name, you might think I'm unlucky, Or that I am going to fall into decay.

Rot for decay and 13 for unlucky.

If I do my thing twice, there's not even a story...

This sentence is encoded by two applications of rot13.

I think I'll stay here, where I'm doing okay.

rot13 is popular on PSE to hide spoilers.

• pbatenghyngvbaf Mar 10, 2019 at 22:44

Are you

A biscuit

I'm an emperor's son, but with none of his glory.

Emperor penguin without the emperor is just a penguin

I have hardcore brothers who are still strong today.

? Crunchy centers or maybe Boasters biscuits (still strong)

If I do my thing twice, there's not even a story...

Hobnobs - dip them twice in your tea and they don't break

I think I'll stay here, where I'm doing okay.

?

• Funny answer, but not at all what I was thinking about :) Mar 9, 2019 at 1:37