Vigenère Cipher Algorithm Optimization for Digital Image Security using SHA512
One of the popular cryptographic algorithms is the Vigenère Cipher. This algorithm is included in classical cryptographic algorithms, so its capabilities are limited to text-type data. Through this research, this research try to modify the Vigenère Cipher so that it can be used on digital image medi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Udayana University, Institute for Research and Community Services
2022-08-01
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| Series: | Lontar Komputer |
| Online Access: | https://ojs.unud.ac.id/index.php/lontar/article/view/87617 |
| _version_ | 1811334155628183552 |
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| author | Imam Riadi Abdul Fadlil Fahmi Auliya Tsani |
| author_facet | Imam Riadi Abdul Fadlil Fahmi Auliya Tsani |
| author_sort | Imam Riadi |
| collection | DOAJ |
| description | One of the popular cryptographic algorithms is the Vigenère Cipher. This algorithm is included in classical cryptographic algorithms, so its capabilities are limited to text-type data. Through this research, this research try to modify the Vigenère Cipher so that it can be used on digital image media. The improvement is performed using ASCII code as a Vigenère table and the key generated by the SHA512 hash technique with salt. The encryption and decryption process was carried out on ten jpg and ten png files and showed a 100% success rate. Speed and memory consumption tests on the encryption process by comparing it with the AES algorithm show that AES excels in speed with 409,467 Mb/s while Vigenère wins in memory consumption by utilizing only 5,0007 Kb for every Kilobytes of the processed digital image file. |
| first_indexed | 2024-04-13T17:03:38Z |
| format | Article |
| id | doaj.art-c8b7509beffd4bf78918147efba167d4 |
| institution | Directory Open Access Journal |
| issn | 2088-1541 2541-5832 |
| language | English |
| last_indexed | 2024-04-13T17:03:38Z |
| publishDate | 2022-08-01 |
| publisher | Udayana University, Institute for Research and Community Services |
| record_format | Article |
| series | Lontar Komputer |
| spelling | doaj.art-c8b7509beffd4bf78918147efba167d42022-12-22T02:38:33ZengUdayana University, Institute for Research and Community ServicesLontar Komputer2088-15412541-58322022-08-01132849510.24843/LKJITI.2022.v13.i02.p0287617Vigenère Cipher Algorithm Optimization for Digital Image Security using SHA512Imam RiadiAbdul FadlilFahmi Auliya TsaniOne of the popular cryptographic algorithms is the Vigenère Cipher. This algorithm is included in classical cryptographic algorithms, so its capabilities are limited to text-type data. Through this research, this research try to modify the Vigenère Cipher so that it can be used on digital image media. The improvement is performed using ASCII code as a Vigenère table and the key generated by the SHA512 hash technique with salt. The encryption and decryption process was carried out on ten jpg and ten png files and showed a 100% success rate. Speed and memory consumption tests on the encryption process by comparing it with the AES algorithm show that AES excels in speed with 409,467 Mb/s while Vigenère wins in memory consumption by utilizing only 5,0007 Kb for every Kilobytes of the processed digital image file.https://ojs.unud.ac.id/index.php/lontar/article/view/87617 |
| spellingShingle | Imam Riadi Abdul Fadlil Fahmi Auliya Tsani Vigenère Cipher Algorithm Optimization for Digital Image Security using SHA512 Lontar Komputer |
| title | Vigenère Cipher Algorithm Optimization for Digital Image Security using SHA512 |
| title_full | Vigenère Cipher Algorithm Optimization for Digital Image Security using SHA512 |
| title_fullStr | Vigenère Cipher Algorithm Optimization for Digital Image Security using SHA512 |
| title_full_unstemmed | Vigenère Cipher Algorithm Optimization for Digital Image Security using SHA512 |
| title_short | Vigenère Cipher Algorithm Optimization for Digital Image Security using SHA512 |
| title_sort | vigenere cipher algorithm optimization for digital image security using sha512 |
| url | https://ojs.unud.ac.id/index.php/lontar/article/view/87617 |
| work_keys_str_mv | AT imamriadi vigenerecipheralgorithmoptimizationfordigitalimagesecurityusingsha512 AT abdulfadlil vigenerecipheralgorithmoptimizationfordigitalimagesecurityusingsha512 AT fahmiauliyatsani vigenerecipheralgorithmoptimizationfordigitalimagesecurityusingsha512 |