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New Comparative Study Between DES, 3DES and AES within Nine Factors
Hamdan. O. Alanazi, B. B. Zaidan, A. A. Zaidan, Hamid A. Jalab, M. Shabbir, Y. Al-Nabhani
TL;DR
The paper addresses the need to protect sensitive multimedia and digital information from unauthorized access, copying, distribution, and undetectable modification. It compares DES, 3DES, and AES across nine factors and concludes that AES is better in efficiency, flexibility, and security. The paper also frames encryption security in relation to attacker time and cost.
Problem
Sensitive multimedia and digital documents face unauthorized access, copying, distribution, and undetectable modification, creating security and privacy concerns.
Method
The paper compares DES, 3DES, and AES across nine factors including key length, cipher type, block size, cryptanalysis resistance, security, and performance-related measures.
Results
The authors conclude that AES is better than DES and 3DES in efficiency, flexibility, and security.
Takeaways & Limitations
AES provides larger block and key-size options and is designed to operate efficiently in software, hardware, and small devices.
Takeaways & Limitations
The security discussion assumes that technological progress could eventually place 128-bit keys within range of a military budget in 30–40 years.
Abstract
from arXiv · showhide
With the rapid development of various multimedia technologies, more and more multimedia data are generated and transmitted in the medical, also the internet allows for wide distribution of digital media data. It becomes much easier to edit, modify and duplicate digital information. Besides that, digital documents are also easy to copy and distribute, therefore it will be faced by many threats. It is a big security and privacy issue, it become necessary to find appropriate protection because of the significance, accuracy and sensitivity of the information, which may include some sensitive information which should not be accessed by or can only be partially exposed to the general users. Therefore, security and privacy has become an important. Another problem with digital document and video is that undetectable modifications can be made with very simple and widely available equipment, which put the digital material for evidential purposes under question. Cryptography considers one of the techniques which used to protect the important information. In this paper a three algorithm of multimedia encryption schemes have been proposed in the literature and description. The New Comparative Study between DES, 3DES and AES within Nine Factors achieving an efficiency, flexibility and security, which is a challenge of researchers.
1. INTRODUCTION
The introduction presents cryptography as protection for information during storage and transmission, emphasizing secure handling of sensitive digital data. It also explains that security depends on key secrecy and key-space size.
- Cryptography converts information into an unintelligible form to protect it from unauthorized attackers during storage or transmission.
- Modern cryptography supports organizational security policies, access control, trust, and electronic financial transactions.
- A cryptosystem should rely on keeping the encryption and decryption key secret rather than keeping the algorithm secret.
- Larger key spaces increase the number of possible keys and require attackers to spend more time on exhaustive search.
2. CRYPTOGRAPHY WITH BLOCK CIPHER
The paper reviews block-cipher operation and the DES, 3DES, and AES algorithms, then compares them across security, performance, and implementation-related factors. DES is obsolete because of its short effective key, 3DES improves key length but incurs substantial computational cost, and AES is presented as faster and more secure.
- Block ciphers: Block ciphers transform fixed-length plaintext blocks into ciphertext blocks under control of a secret key, with decryption reversing the transformation.
- DES: DES uses a 64-bit block and an effective 56-bit key, making it vulnerable to brute-force attacks and unsuitable for current security needs.
- 3DES: 3DES applies DES three times; three distinct keys provide an effective 168-bit key, while two-key 3DES provides 112 bits and is less secure.
- 3DES: 3DES requires three times the CPU power of DES, creating a significant performance penalty.
- AES: AES uses a fixed 128-bit block size with 128-, 192-, or 256-bit keys and is designed for efficient software and hardware operation.
4. CONCLUSION
The paper concludes that its nine-factor comparison supports AES as superior to DES and 3DES in efficiency, flexibility, and security.
- The nine-factor comparison identifies AES as better than DES and 3DES for efficiency, flexibility, and security.