Hawkynt

PRIDE

Block cipher optimized for 8-bit microcontrollers with focus on efficient linear layer. 64-bit block size with 128-bit keys using FX construction with 20 rounds. Designed for resource-constrained IoT devices with emphasis on low latency.

Properties

Property Value
Category Block Ciphers
Sub-category Lightweight Block Cipher
Security status πŸ§ͺ Experimental
Complexity Intermediate
Inventor Martin R. Albrecht, Benedikt Driessen, Elif Bilge Kavun, Gregor Leander, Christof Paar, Tolga Yalçın
Year 2014
Origin πŸ‡©πŸ‡ͺ Germany
Source algorithms/block/pride.js

Parameters

Parameter Supported values
Key sizes 16 bytes (128 bits)
Block sizes 8 bytes (64 bits)

Security

Status: πŸ§ͺ Experimental

Known vulnerabilities

Issue Description Mitigation
Related-key differential attack Full 20-round PRIDE is breakable under the related-key model using related-key differential characteristics derived from its key schedule Do not reuse related keys; treat as broken under the related-key model and educational-only

Documentation

References

Test vectors

5 vectors ship with this algorithm and run in the test suite. Byte values are hexadecimal.

Vector 1 β€” PRIDE Test Vector #1 - specification Appendix J

Field Value
key 00000000000000000000000000000000
input 0000000000000000
expected 82b4109fcc70bd1f

Vector 2 β€” PRIDE Test Vector #2 - specification Appendix J

Field Value
key 00000000000000000000000000000000
input ffffffffffffffff
expected d70e60680a17b956

Vector 3 β€” PRIDE Test Vector #3 - specification Appendix J

Field Value
key ffffffffffffffff0000000000000000
input 0000000000000000
expected 28f19f97f5e846a9

Vector 4 β€” PRIDE Test Vector #4 - specification Appendix J

Field Value
key 0000000000000000ffffffffffffffff
input 0000000000000000
expected d123ebaf368fce62

Vector 5 β€” PRIDE Test Vector #5 - specification Appendix J

Field Value
key 0000000000000000fedcba9876543210
input 0123456789abcdef
expected d1372929712d336e

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