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Applying & Evaluation Cryptography Files Using Symmetric Cryptography Algorithms of Block Cipher Type | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 22, Issue 5, 2011, Pages 386-399 | ||
| Author | ||
| Haifaa Abd Al-Zahra Atee | ||
| Abstract | ||
| The process of transfer and exchange of important data files from one place to another or over the Internet requires high protection and confidentiality to keep it away from theft and tampering. Therefore, there are many algorithms that are designed to encrypt files and provide a safe environment for better transfer of data from one place to another or over the network. In this research, implementation and evaluation of a symmetric cryptography algorithms of block cipher type is used to encrypt and decrypt files with different sizes, four algorithms of symmetric encryption block cipher type are used, It was found that there are differences in the time takes to encrypt and decrypt same files which using different encryption algorithms .So found that the AES algorithm is the fastest in the encryption and decryption, either 3-DES algorithm was the slowest. Also found that the time takes to encrypt the files was less than the time it takes to decode the files in all algorithms used in this research. Four algorithms are used to encryption and decryption files ,these are: AES (Rijndeal) , Triple DES , Towfish ,and Blowfish. | ||
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