Evaluation of DES, TDES, AES, Blowfish and Twofish Encryption Algorithm: Based on Space Complexity

-Due to fast growing of telecommunication technology and limitation for information transmission there is a need to use an efficient cryptography algorithm which takes less space after encryption for the ciphertext. Some performance matrics (such as time, speed and throughput) make the algorithm better. In this paper, we analyze and find an efficient encryption algorithm which takes less space among these encryption algorithms such as DES, TDES, AES, Blowfish and Twofish. Keywords— Space complexity, Encryption, Decryption, Symmetric Key, Private Key, DES, TDES, AES, Blwofish, Twofish.