Hawkynt

ParallelHash128

ParallelHash128 is a parallel hash function from NIST SP 800-185 that supports efficient hashing of very long strings using parallelism. Based on cSHAKE128.

Properties

Property Value
Category Hash Functions
Sub-category Parallel Hash Function
Security status 🛡️ Secure
Complexity Advanced
Inventor NIST
Year 2016
Origin 🇺🇸 United States
Source algorithms/hash/parallelhash.js

Parameters

Parameter Supported values
Output sizes 1 byte (8 bits) to 1024 bytes (8192 bits)

Security

Status: 🛡️ Secure

No vulnerabilities are recorded for this implementation.

Documentation

References

Test vectors

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

Vector 1 — ParallelHash128: Sample #1 (B=8, S=’’, 32 bytes) - NIST

Field Value
blockSize 8
customization (empty)
outputSize 32
input 000102030405060710111213141516172021222324252627
expected ba8dc1d1d979331d3f813603c67f72609ab5e44b94a0b8f9af46514454a2b4f5

Vector 2 — ParallelHash128: Sample #2 (B=8, S=’Parallel Data’, 32 bytes) - NIST

Field Value
blockSize 8
customization 506172616c6c656c2044617461
outputSize 32
input 000102030405060710111213141516172021222324252627
expected fc484dcb3f84dceedc353438151bee58157d6efed0445a81f165e495795b7206

Vector 3 — ParallelHash128: Sample #3 (B=12, S=’Parallel Data’, 32 bytes) - NIST

Field Value
blockSize 12
customization 506172616c6c656c2044617461
outputSize 32
input 000102030405060708090a0b10111213 1415161718191a1b2021222324252627 28292a2b303132333435363738393a3b 404142434445464748494a4b50515253 5455565758595a5b
expected f7fd5312896c6685c828af7e2adb97e393e7f8d54e3c2ea4b95e5aca3796e8fc

Vector 4 — ParallelHash128: XOF mode (B=12, S=’Parallel Data’, 32 bytes)

Field Value
blockSize 12
customization 506172616c6c656c2044617461
outputSize 32
xofMode Yes
input 000102030405060708090a0b10111213 1415161718191a1b2021222324252627 28292a2b303132333435363738393a3b 404142434445464748494a4b50515253 5455565758595a5b
expected 0127ad9772ab904691987fcc4a24888f341fa0db2145e872d4efd255376602f0

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