Performance measurements › arm_1 › hash-34 · system: x86_1 · arm_1

hash-34 WChain Hash Function — performance on AArch64 (system arm_1)

Independent measurement following the structure of the NICCS ARM self-assessment guide, §3.5 (1)–(7). Not a submitter self-assessment.

1. Basic information

Category: cryptographic hash algorithm; function: hash
Algorithm: WChain Hash Function
Implementation versions measured: reference
Parameter sets: WChain-V1-512, WChain-V2-1024
Security evaluation: hash-34 report
Measurement method: arm_1 method
Submission: NICCS page

2. Assessment environment

item	value
processor	Qualcomm Oryon (CPU 2, one core)
machine	ASUS Vivobook S 15
clock	fixed 2.71 GHz (governor performance, minimum = maximum), boost off, SMT none
memory	30562 MiB
OS / kernel	Ubuntu 26.04.1 LTS / 7.0.0-34-generic
compiler / build tool	gcc (Ubuntu 15.2.0-16ubuntu1) 15.2.0 / cmake version 4.2.3
campaign start / end (UTC)	2026-09-28T15:05:46 / 2026-09-29T08:43:52

3. Functional testing (KAT)

Each library was checked against the submitted KAT vectors (SHA-256 manifest hash-34/kat.sha256 in the harness) before timing.

instance	build flags	KAT
`WChain-V1-512`	guide	PASS
`WChain-V2-1024`	guide	PASS

4. Performance

instance	message	mean cycles	cycles/byte	mean time	MB/s	n
`WChain-V1-512`	32 B	1379	43.1	513 ns	62.3	100000 (5 × 20000)
`WChain-V1-512`	128 B	1367	10.7	509 ns	251.6	100000 (5 × 20000)
`WChain-V1-512`	512 B	3324	6.5	1.24 µs	414.4	100000 (5 × 20000)
`WChain-V1-512`	1024 B	5967	5.8	2.22 µs	462.1	100000 (5 × 20000)
`WChain-V1-512`	4096 B	19.8 k	4.8	7.34 µs	558.2	100000 (5 × 20000)
`WChain-V1-512`	8192 B	38.2 k	4.7	14.2 µs	577.9	100000 (5 × 20000)
`WChain-V1-512`	16384 B	75.6 k	4.6	28.1 µs	583.7	100000 (5 × 20000)
`WChain-V1-512`	65536 B	300.5 k	4.6	112 µs	587.6	28025 (5 × 5605)
`WChain-V2-1024`	32 B	5991	187.2	2.23 µs	14.4	100000 (5 × 20000)
`WChain-V2-1024`	128 B	6062	47.4	2.25 µs	56.9	100000 (5 × 20000)
`WChain-V2-1024`	512 B	9011	17.6	3.35 µs	153.0	100000 (5 × 20000)
`WChain-V2-1024`	1024 B	14.9 k	14.6	5.53 µs	185.1	100000 (5 × 20000)
`WChain-V2-1024`	4096 B	47.3 k	11.5	17.5 µs	233.5	100000 (5 × 20000)
`WChain-V2-1024`	8192 B	88.5 k	10.8	32.8 µs	249.6	91955 (5 × 18391)
`WChain-V2-1024`	16384 B	181.0 k	11.0	67.2 µs	243.9	48100 (5 × 9620)
`WChain-V2-1024`	65536 B	677.0 k	10.3	251 µs	260.9	12550 (5 × 2510)

5. Resource consumption

Static memory is approximated by the library's loadable ELF segments; peak memory is the process high-water mark (VmHWM) including the benchmark driver and libc, so both are upper-bound proxies rather than isolated algorithm memory.

instance	operation	static: ELF image (bytes)	baseline RSS	peak RSS
`WChain-V1-512`	hash_32	22368	1412 KiB	1476 KiB
`WChain-V1-512`	hash_128	22368	1412 KiB	1476 KiB
`WChain-V1-512`	hash_512	22368	1412 KiB	1476 KiB
`WChain-V1-512`	hash_1024	22368	1416 KiB	1480 KiB
`WChain-V1-512`	hash_4096	22368	1416 KiB	1480 KiB
`WChain-V1-512`	hash_8192	22368	1420 KiB	1484 KiB
`WChain-V1-512`	hash_16384	22368	1428 KiB	1492 KiB
`WChain-V1-512`	hash_65536	22368	1476 KiB	1540 KiB
`WChain-V2-1024`	hash_32	22368	1412 KiB	1476 KiB
`WChain-V2-1024`	hash_128	22368	1412 KiB	1476 KiB
`WChain-V2-1024`	hash_512	22368	1408 KiB	1472 KiB
`WChain-V2-1024`	hash_1024	22368	1416 KiB	1480 KiB
`WChain-V2-1024`	hash_4096	22368	1416 KiB	1480 KiB
`WChain-V2-1024`	hash_8192	22368	1420 KiB	1484 KiB
`WChain-V2-1024`	hash_16384	22368	1428 KiB	1492 KiB
`WChain-V2-1024`	hash_65536	22368	1476 KiB	1540 KiB

7. Raw evidence index

Paths are relative to performance/data/arm_1/ in the harness; each JSON file records its commands, environment and trials.

instance	item	file
`WChain-V1-512`	KAT log (sha256 `829596117a41745c…`)	`kat/hash-34/WChain-V1-512.log`
`WChain-V1-512`	timing hash_1024	`records/hash-34/WChain-V1-512__hash_1024.json`
`WChain-V1-512`	timing hash_128	`records/hash-34/WChain-V1-512__hash_128.json`
`WChain-V1-512`	timing hash_16384	`records/hash-34/WChain-V1-512__hash_16384.json`
`WChain-V1-512`	timing hash_32	`records/hash-34/WChain-V1-512__hash_32.json`
`WChain-V1-512`	timing hash_4096	`records/hash-34/WChain-V1-512__hash_4096.json`
`WChain-V1-512`	timing hash_512	`records/hash-34/WChain-V1-512__hash_512.json`
`WChain-V1-512`	timing hash_65536	`records/hash-34/WChain-V1-512__hash_65536.json`
`WChain-V1-512`	timing hash_8192	`records/hash-34/WChain-V1-512__hash_8192.json`
`WChain-V2-1024`	KAT log (sha256 `9f8ac22a5d0ed869…`)	`kat/hash-34/WChain-V2-1024.log`
`WChain-V2-1024`	timing hash_1024	`records/hash-34/WChain-V2-1024__hash_1024.json`
`WChain-V2-1024`	timing hash_128	`records/hash-34/WChain-V2-1024__hash_128.json`
`WChain-V2-1024`	timing hash_16384	`records/hash-34/WChain-V2-1024__hash_16384.json`
`WChain-V2-1024`	timing hash_32	`records/hash-34/WChain-V2-1024__hash_32.json`
`WChain-V2-1024`	timing hash_4096	`records/hash-34/WChain-V2-1024__hash_4096.json`
`WChain-V2-1024`	timing hash_512	`records/hash-34/WChain-V2-1024__hash_512.json`
`WChain-V2-1024`	timing hash_65536	`records/hash-34/WChain-V2-1024__hash_65536.json`
`WChain-V2-1024`	timing hash_8192	`records/hash-34/WChain-V2-1024__hash_8192.json`

Scripts: performance/campaign.py, performance/ngcc_perf.c, performance/hashprof/ in the harness.