From Wired:

Tupac and Biggie, move over. A new hip-hop feud is brewing that glamorizes not guns and 'hos but Java and secure encryption algorithms.

It's a good article, but only the lyrics can express the true genius of MC Plus+

DES is wrong if you listen to NIS
Double DES ain't no better man, that got Dis'ed
Twofish for AES, that was Schneier's wish
Like a shot from the key
Rijndael made the swish
But Blowfish is still the fastest in the land
And Bruce used the same to ECB and I'll crack your ciper text
Try CFB mode to keep everyone perplexed

From Alice and Bob

UPDATE: The CS Gangsta rap feud is in full swing:

Yo, MC Plus Plus, my rhymes are so phat,
I'm PSPACE-complete but I'll reduce you to 3-SAT.
My crew is so hard that we roll in NP,
And bitches dereference my pointer for free.
..
..

My flow is so intense that I will overflow your buffer,
Corrupt your stack pointer makin' all your data suffer.
I've got saturated edges but your flow is sparser,
Real gangstas sip on Yacc; instead you generate a parser.
While you're busy poppin' stacks I'll pop a cap in your skull,
While you smoke your crack pipe I'm gonna pipe you to /dev/null.
I may not have a label but I rap like a star;
I'm an unsigned long int and you're an 8-bit char.

Monzy's So Much Drama in the PhD