Frequently in wireless communications the cryptographic algorithm is considered as 'the security arrangement' all things considered it is just the core. The methods for utilizing the cryptographic algorithm is the "key" utilized by the calculation. In this manner administration of keys and security there-of is an imperative issue. The security of the key administration arrangement ought not hinder versatility of gadgets by including undue postponements. Subsequently, secure and quick key administration amid portability is a vital issue for the third generation partnership project (3GPP) activity on system architecture evolution / long-term evolution (SAE/LTE). In this paper we audit portability and security issues with the concentration of key administration in SAE/LTE and show conceivable existing arrangements together with their investigation