New extension of data encryption standard over 128-bit key for digital images

Digital images that are personal and confidential are very vulnerable to wiretapping by irresponsible parties. Especially if distributed via the internet network such as on Facebook, WhatsApp and e-mail chat based applications. Images that are sent sometimes are often confidential images and must be maintained. In order to maintain the security of digital images can be done by utilizing cryptographic techniques. Cryptographic techniques can secure digital images by changing pixel values from digital images so as to produce different pixel values from the original image to be secured. This research will use AES 128 bit and Triple DES methods for encryption and decryption of digital images on client-server based applications. The results of the encryption AES algorithm will be re-encrypted with the Triple DES Algorithm so as to produce pixel values that are far different from the original pixel values. Keywords: cryptography, image, AES, Triple DES

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Sistem Keamanan Data Text Dengan Data Encryption Standard (DES) Dan Metode Least Significant Bit (LSB)

Jurnal Sistem Informasi dan Komputer Terapan Indonesia (JSIKTI) ◽

10.33173/jsikti.16 ◽

2018 ◽

Vol 1 (2) ◽

pp. 11-20

Author(s):

Indra Pratistha ◽

Paholo Iman Prakoso

Keyword(s):

Data Security ◽

Digital Images ◽

Computer Systems ◽

Data Encryption ◽

The Internet ◽

Least Significant Bit ◽

Data Encryption Standard ◽

The Road ◽

Current Information ◽

Require Data

Current information can be delivered quickly without knowing the geographical boundaries using the internet. However, the information transmitted can be intercepted by the middle of the road which is not desired, then the security of the data actually becomes a very important issue. The development of computer systems and networks and the interconnection through the Internet has increased, of course, require data security and reliable message in order to avoid the attack. To secure internet data or message network necessary cryptographic encryption methods, one method of data encryption that there is a method of data encryption standard (DES) and subsequently inserted into the Lakeside digital images (steganography) using the method of least significant bit (LSB).

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