Hawkynt

Mersenne Twister 64-bit (MT19937-64)

MT19937-64 is the 64-bit version of the widely-used Mersenne Twister PRNG with a period of 2^19937-1. It generates high-quality 64-bit pseudo-random numbers suitable for simulation and statistical applications, though it is not cryptographically secure.

Properties

Property	Value
Category	Random Number Generators
Sub-category	Pseudo-Random Number Generator
Security status	🎓 Educational Only
Complexity	Advanced
Inventor	Makoto Matsumoto and Takuji Nishimura
Year	2004
Origin	🇯🇵 Japan
Source	algorithms/random/mersenne-twister-64.js

Parameters

Parameter	Supported values
Seed sizes	8 bytes (64 bits)

Capabilities

Flag	Value
IsDeterministic	Yes
IsCryptographicallySecure	No

Security

Status: 🎓 Educational Only

No vulnerabilities are recorded for this implementation.

Documentation

• Official MT19937-64 Page
• Reference Implementation (C code)
• Original Paper: Mersenne Twister (ACM TOMACS 1998)
• Wikipedia: Mersenne Twister

References

• C++11 std::mt19937_64 Documentation
• Crypto++ Implementation

Test vectors

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

Vector 1 — MT19937-64 with seed 5489 (default seed, first 10 outputs)

Field	Value
seed	7115000000000000
outputSize	80
input	null
expected	a6aef6f61c196dc91c0fc88bc77a1f40 f857e4abb68ceeb59213b94d2dd258f2 cc60d8b5b4f2ee04d672d110beaaa767 21402be7505d564086e38d1e7d7bd005 cc1a8230a1de48853a0a2e832c503c58

Vector 2 — MT19937-64 with seed 1 (common test seed, first 5 outputs)

Field	Value
seed	0100000000000000
outputSize	40
input	null
expected	686f68bb5fbd45224efa18235092eb22 9a45e67ae7d182738ec0357905d86105 3867fcec7275d459

Vector 3 — MT19937-64 with seed 123456789 (validation test)

Field	Value
seed	15cd5b0700000000
outputSize	40
input	null
expected	0ec89191f1a74f59755ad328339f5244 9fd9b6f16540fb22c0b3134cbb804f07 ad0ce47a256972de

---

← All algorithms

This site is open source. Improve this page.