In encryption process, encryption algorithm is applied to the original text, which transforms the original text into the encrypted or cipher text. During decryption process, decryption...

Learn about Data Encryption Standard (DES) Algorithm with its program implementation in C. Data Encryption Standard is a symmetric-key algorithm for the encrypting the data. It comes under block cipher algorithm which follows Feistel structure. Here is the block diagram of Data Encryption Standard.

Dec 28, 2024 · Encryption is the process of converting a normal message (plain text) into a meaningless message (ciphertext). Decryption is the process of converting a meaningless message (ciphertext) into its original form (plaintext).

Cryptography (encryption/decryption) is one of the prevailing mechanisms for protection of information (data or image) in the growing era of computerized exchange. It is the art of securing...

The methods used are: digital image processing methods, digital image compression methods, image encryption and scrambling methods, structural-combinatorial coding methods, statistical...

Draw a block diagram showing plain text, cipher text, encryption, and decryption. Plain Text: Original message or data. Encryption: Process that secures plain text with a key. Cipher Text: …

algorithm. In this paper we proposed an image encryption and decryption algorithm using AES in which encryption contains a random image and decryption contains original image. The algorithm is implemented in java. The efficiency of AES is compared u ing image and text and it is analyzed. The result thus shows t

Image encryption is a procedure which converts plain image to an encrypted image by employing a secret key. The decryption process decrypts the cipher image into the original image by employing the secret key [3, 4].

In this paper, an image encryption method based on block permutation and XOR operation is implemented and the results were analyzed. The basic idea involves providing one of the easiest methods for encryption process.

Since images have bigger size than text, a faster encryption algorithm is needed to provide higher security in digital images. The paper presents a modified AES algorithm that address the ...