https://github.com/aviate-labs/rand.mo

Pseudo Random Number Generators in Motoko
https://github.com/aviate-labs/rand.mo

Last synced: about 2 months ago
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Pseudo Random Number Generators in Motoko

• Host: GitHub
• URL: https://github.com/aviate-labs/rand.mo
• Owner: aviate-labs
• License: apache-2.0
• Created: 2021-09-01T12:38:16.000Z (almost 3 years ago)
• Default Branch: main
• Last Pushed: 2022-12-16T17:39:07.000Z (over 1 year ago)
• Last Synced: 2024-01-26T10:35:07.864Z (5 months ago)
• Language: Motoko
• Homepage:
• Size: 13.7 KB
• Stars: 5
• Watchers: 2
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Lists

• awesome-motoko - rand - Pseudo Random Number Generators. (Libraries / Cryptography)

README

        
# Pseudo Random Number Generators

## LFSR (linear feedback shift register)

### Types of LFSR

#### 8-bit

```text

X^8 + X^6 + X^5 + X^4 + 1

-> 2^8 -1 = 255

```

#### 16-bit

```text

X^16 + X^14 + X^13 + X^11 + 1

-> 2^16 - 1 = 65_535

```

#### 32-bit

```text

X^32+ X^22 + X^2 + X^1 + 1

-> 2^32 - 1

```

### Usage

```motoko

let feed = LFSR.LFSR8(0);

let (v, _) = feed.next();

// Iter

let iter = LFSR.toIter(feed);

```

## XorShift

Reference: [prng](https://vigna.di.unimi.it/ftp/papers/xorshift.pdf).