How to calculate size of a codebook lookup table to break block cipher? [migrated]
I was reading a book called Serious Cryptography. There is a page saying that block size must be large enough to prevent codebook attacks:
When 16-bit blocks are used, the lookup table needs only 2^16 × 16 = 2^20 bits
of memory, or 128 ki… Continue reading How to calculate size of a codebook lookup table to break block cipher? [migrated]