SAFER+ Characteristics (continued)

• Fast-diffusing linear transformation

via the PHT and the Armenian shuffle

• Scalability

Bytes can be made to 2 or 4 (or even 16) bit characters for study.

• Biases in key schedules

eliminates “weak keys”

• Parity word and selections in key schedules

diversity in round subkeys

• Number of rounds

chosen for security with a margin of safety

Previous slide

Next slide

Back to first slide

View graphic version