# rand_core

- **Canonical URI:** https://www.vioscale.ai/software/rand-core
- **Category:** Utilities
- **Vendor:** Github
- **Homepage:** https://rust-random.github.io/book
- **Also known as:** rand-core, rand_core
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-05T12:47:18.511Z

## Vioscale score

**29.8 / 100**, confidence 12% (low).

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| capabilities | 0 | 0.123 | 0 | - |
| github_stars | 21 | 0.038 | 0.8 | ✓ |
| integrations | 0 | 0.062 | 0 | - |
| github_activity | 15 | 0.138 | 2.1 | ✓ |
| release_cadence | 60.6 | 0.077 | 4.7 | ✓ |
| security_posture | 0 | 0.1 | 0 | - |
| package_downloads | 0 | 0.2 | 0 | - |
| stackoverflow_activity | 0 | 0.092 | 0 | - |

## Pricing

_As of 2026-08-05, [verify at source](https://rust-random.github.io/book). Independently observed._

Open source · Free tier

## About

The Rust Rand Book is the official documentation for Rust's random number library, providing quick start guides, feature overviews, user guides, and contributor documentation.

_Independently observed._

## FAQ

### What is rand_core?

rand_core is a Rust library that provides core traits and tools for implementing random number generation functionality. It serves as a foundation for developers who are building their own randomness solutions and libraries within the Rust ecosystem.

_Source: [https://rust-random.github.io/book](https://rust-random.github.io/book)._

### What is the cost and licensing model?

rand_core is open-source software available at no cost. There are no subscription fees, licensing charges, or usage restrictions for using the library.

_Source: [https://rust-random.github.io/book](https://rust-random.github.io/book)._

### Who should use rand_core?

rand_core is designed for Rust developers who need to implement random number generation capabilities in their projects or libraries. It provides the essential traits and foundational tools required to build such implementations.

_Source: [https://rust-random.github.io/book](https://rust-random.github.io/book)._

### What documentation is provided?

The project includes a quick start guide, an overview of available features, and contributor documentation. These resources support both users getting started with the library and developers interested in contributing.

_Source: [https://rust-random.github.io/book](https://rust-random.github.io/book)._

### Can developers contribute to the project?

Yes, rand_core welcomes community contributions. The project provides dedicated contributor documentation to guide developers interested in participating in its development.

_Source: [https://rust-random.github.io/book](https://rust-random.github.io/book)._

### What programming language does rand_core target?

rand_core is built specifically for the Rust programming language. It integrates with Rust's type system and ecosystem to provide traits and tools for random number generation implementations.

_Source: [https://rust-random.github.io/book](https://rust-random.github.io/book)._


## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### activity

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| activity.commits_last_30d | 2 | [link](https://github.com/rust-random/rand_core/pulse) | 2026-07-30 | 65% (medium) |

### adoption

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| adoption.github_stars | 12 | [link](https://github.com/rust-random/rand_core) | 2026-07-30 | 90% (high) |

### language

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| language.primary | Rust | [link](https://github.com/rust-random/rand_core) | 2026-07-30 | 90% (high) |

### license

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| license.spdx | Apache-2.0 | [link](https://github.com/rust-random/rand_core) | 2026-07-30 | 95% (high) |

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.free_tier | yes | [link](https://rust-random.github.io/book) | 2026-08-05 | 60% (medium) |
| pricing.model | open_source | [link](https://rust-random.github.io/book) | 2026-08-05 | 60% (medium) |
| pricing.price_level | free | [link](https://rust-random.github.io/book) | 2026-08-05 | 60% (medium) |

### release

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| release.cadence_days | 71 | [link](https://github.com/rust-random/rand_core/releases) | 2026-07-30 | 70% (medium) |

### content

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| content.faq | `[{"answer":"rand_core is a Rust library that provides core traits and tools for implementing random number generation functionality. It serves as a foundation for developers who are building their own randomness solutions and libraries within the Rust ecosystem.","source":"https://rust-random.github.io/book","question":"What is rand_core?","confidence":0.95},{"answer":"rand_core is open-source software available at no cost. There are no subscription fees, licensing charges, or usage restrictions for using the library.","source":"https://rust-random.github.io/book","question":"What is the cost and licensing model?","confidence":1},{"answer":"rand_core is designed for Rust developers who need to implement random number generation capabilities in their projects or libraries. It provides the essential traits and foundational tools required to build such implementations.","source":"https://rust-random.github.io/book","question":"Who should use rand_core?","confidence":0.9},{"answer":"The project includes a quick start guide, an overview of available features, and contributor documentation. These resources support both users getting started with the library and developers interested in contributing.","source":"https://rust-random.github.io/book","question":"What documentation is provided?","confidence":0.95},{"answer":"Yes, rand_core welcomes community contributions. The project provides dedicated contributor documentation to guide developers interested in participating in its development.","source":"https://rust-random.github.io/book","question":"Can developers contribute to the project?","confidence":0.9},{"answer":"rand_core is built specifically for the Rust programming language. It integrates with Rust's type system and ecosystem to provide traits and tools for random number generation implementations.","source":"https://rust-random.github.io/book","question":"What programming language does rand_core target?","confidence":0.85}]` | [link](https://rust-random.github.io/book) | 2026-07-30 | 93% (high) |

### reliability

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| reliability.status_page | yes | [link](https://rust-random.github.io/status) | 2026-08-05 | 60% (medium) |

---
*Source: Vioscale (https://www.vioscale.ai/software/rand-core). Independent, evidence-based software intelligence. Cite the canonical URI.*