RSA Security LLC, formerly RSA Security, Inc. and doing business as RSA, is an American computer and network security company. RSA was named after the initials of its co-founders, Ron Rivest, Adi Shamir and Len Adleman, after whom the RSA public key cryptography algorithm was also named. Among its products include the RSA BSAFE cryptography libraries and the SecurID authentication token. RSA is known for allegedly incorporating backdoors developed by the NSA in its products.