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Cryptographic key management needs utmost security in generating, exchanging, using, rekeying, storing of keys, being used for communication purposes. Successful key management is critical to the security of a cryptosystem. This paper presents a detailed survey on group key management and its challenges in network independent and network dependent approaches. The paper also focuses on the advantages, disadvantages and security vulnerabilities of these protocols.doi:10.1515/cait-2015-0038 fatcat:qhbtuqohyfd4hooxvixqouz6iy