Abstract
Due to their complexity, computation time and power requirement, the secure and widely used cryptographic systems such as 3DES and AES may not be considered suitable for applications like mobile and remote sensing of sensitive data. Therefore, secure but less complicated algorithms for data encryption are still sought. This paper suggests a new Segmented Block Cipher Algorithm (SBCA) is a symmetric algorithm that relies on simple mathematical operations and permutation processes on segmented message blocks. The ASCII code representations of the message characters and the key contents are dealt with throughout the encryption and decryption phases. Obtained results manifested a reasonable computation time while the checked security strength looks.
Highlights
Data security has been the concern of people and authorities since the old Roman and Chinese empires
The same key is used for encryption and decryption processes, it is termed symmetric cryptography (Stallings, 2011)
This paper suggests a new block cipher algorithms that relies on ASCII code maneuver of segmented messages for the encryption/decryption processes and incorporating multi-section secret key
Summary
Data security has been the concern of people and authorities since the old Roman and Chinese empires. With more advances in computation capabilities, other more powerful system were developed, such as triple DES (3DES), Advanced Encryption Standard (AES) (Yan, 2009, Verma et al, 2013), AES-GCM (Wilkinson, 2017), FAROQ (Dawood et al, 2017), etc. All these system are symmetric systems, as they use the same key for both encryption and decryption, which raised the problem of key distribution
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