Mohona Ghosh

Improved Meet-in-the-Middle Attacks on 7 and 8-Round ARIA-192 and ARIA-256

The ARIA block cipher has been established as a Korean encryption standard by Korean government since 2004. In this work, we re-evaluate the security bound of reduced round ARIA-192 and ARIA-256 against meet-in-the-middle MITM key recovery attacks in the single key model. We present a new 4-round distinguisher to demonstrate the best 7 & 8 round MITM attacks on ARIA-192/256. Our 7-round attack on ARIA-192 has data, time and memory complexity of

The paper slip should be there!: perceptions of transaction receipts in branchless banking

2^{113}

SPF: A New Family of Efficient Format-Preserving Encryption Algorithms

,

Single Key Recovery Attacks on 9-Round Kalyna-128/256 and Kalyna-256/512

2^{135.1}

Biclique cryptanalysis of full round AES with reduced data complexity

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