Research Article
Improved Conditional Differential Analysis on NLFSR-Based Block Cipher KATAN32 with MILP
Table 2
The notations used throughout the paper.
| Symbol | Definition |
| | The finite field of two elements | | The -dimensional vector space over | | The state of the 13-bit NLFSR at round | | The state of the 19-bit NLFSR at round | | The -th bit of the 13-bit NLFSR at round | | The -th bit of the 19-bit NLFSR at round | | The difference in | | The difference in | | A 32-bit plaintext block | | The -th bit of the plaintext | | An 80-bit key | | The -th bit of the key |
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