Yes, they helped improve DES http://arstechnica.com/security/2013/09/the-nsas-work-to-make-crypto-worse-and-better/ http://arstechnica.com/security/2013/09/the

Yes, they helped improve DES http://arstechnica.com/security/2013/09/the-nsas-work-to-make-crypto-worse-and-better/ http://arstechnica.com/security/2013/09/the-nsas-work-to-mak...