Symmetric-key block cipher for image and text cryptography

Amador, José J.; Green, Robert W.

doi:10.1002/ima.20050

Cited by 34 publications

(11 citation statements)

References 33 publications

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“…Each round of master key is using key encryption expansion algorithm or decoding, which needs 128-byte Round Key, Figure 6 [12,20]. The development of decoding operations that are in a reverse order, compared with arranged decoding mode and therefore at the beginning of the preliminary round, followed by nine occurrences of the regular round reverse, but ends with the addition of key stage consists regular tours inverse [3,11]. 2.5 Inv.…”

Section: Shift Rows Transformationmentioning

confidence: 99%

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Digital Image Encryption Implementations Based on AES Algorithm

AlRababah

2017

VAWKUM trans. comput. sci.

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Objectives: To increase needed for exchanging digital photos electronically, due to alarming demand for multimedia applications, and because of the increasing use of images in electronic processes. Hence, the need for protection by unauthorized user is necessary. Method: This paper primarily is focusing on the necessary protection of these images using a specific analyzes algorithm: Advanced Encryption Standard (AES) with a full its description, which is known as an algorithm (Rijndael). Findings: It will be determined the address decryption, which is made up of different styles in all encryption and decryption steps in order to protect the valuable information. This algorithm will be implemented on MATLAB software programming. Application: The above results and analysis for this crypto system based on AES algorithm give a high performance. So we have reason to believe that use this method to encrypt the image will have a very good prospect in the future.

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Section: Shift Rows Transformationmentioning

confidence: 99%

“…Through the digital image processing to get the AES encryption standard data, encrypt the date in packet. Eventually put all the data together, reduction of encrypted image, achieve the desired encryption effect [3,9,17].…”

mentioning

confidence: 99%

Digital Image Encryption Implementations Based on AES Algorithm

AlRababah

2017

VAWKUM trans. comput. sci.

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“…In contrast, asymmetric key encryption algorithm [10] employed two keys: public and private key. Recent studies mentioned that asymmetric key encryption is slower than symmetric key encryption algorithms [11]. Furthermore, asymmetric encryption algorithm has higher computational complexity which, are most of the time prohibitive for images and mathematical correlation between public and private keys may help attackers to hack the image [12].…”

Section: Introductionmentioning

confidence: 99%

Image Encryption Technique based on the Entropy Value of a Random Block

Al-Husainy¹,

Uliyan²

2017

ijacsa

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Abstract-The use of digital images in most fields of information technology systems makes these images usually contain confidential information. When these images transmitted via the Internet especially in the Cloud, it becomes necessary to protect these images in a way that ensure putting the confidential information that are contained far away from the attackers. A proposed image encryption technique has been presented in this work. This technique used a secret key that is extracted from the image content itself. Therefore, there is no need to find a secret channel to exchange any key where, sender and receiver authenticate each other with regards to a shared secret key extracted from the image. The technique constructs its secret key that is used to encrypt the image, based on the entropy values of a set of randomly selected blocks from the image itself. Vairous experiments have been conducted to evaluate the strength and performance of the technique. The experimental results shows that the proposed technique can be used effectively in the field of image security to protect and authenticate images.

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“…There are two classes of cryptographic procedures in use, referred to as i) Symmetric-key cryptography (SKC) and ii) Public key cryptography (PKC). Public-key algorithms are slow, whereas Symmetric-key algorithms generally run much faster [3]. Symmetric-key cryptography has been (and still is) extensively used to solve the traditional problem of communication over insecure channels [4].…”

Section: Introductionmentioning

confidence: 99%