The block size is 128 bits, with key sizes of 128, 192, or 256 bits.

The cipher operates on 64-bit blocks and has a key size of 128 bits.

Implementations can implement a smaller virtual address space with a minimum size of 43 bits.

MMB has a key size and block size of 128 bits.

Treyfer has a rather small key size and block size of 64 bits each.

The algorithm uses a key size of 128, 192, or 256 bits.

The "K-64" denotes a key size of 64 bits.

Then there's a flat white pebble the size of two bits together, a cantra-piece - obverse: the linked stars.

This implies a minimum size of 8 bits.

For key sizes of 128 and 192 bits, the cipher uses 6 rounds, increasing to 8 for the 256-bits size.