# rand_chacha - **Canonical URI:** https://www.vioscale.ai/software/rand-chacha - **Category:** Utilities - **Vendor:** Github - **Homepage:** https://rust-random.github.io/book - **Also known as:** rand-chacha, rand_chacha - **Profile claimed by vendor:** no - **Last updated:** 2026-08-05T12:47:15.641Z ## Vioscale score **55.7 / 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 | 62.5 | 0.038 | 2.4 | ✓ | | integrations | 0 | 0.062 | 0 | - | | github_activity | 30 | 0.138 | 4.1 | ✓ | | release_cadence | 98.3 | 0.077 | 7.6 | ✓ | | 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 ## About Extended documentation for Rust's random number library. _Independently observed._ ## FAQ ### What is rand_chacha? rand_chacha is a random number generation library for the Rust programming language that implements the ChaCha algorithm. It enables Rust applications to generate random numbers. _Source: [https://rust-random.github.io/book](https://rust-random.github.io/book)._ ### Is rand_chacha free to use? Yes, rand_chacha is open-source software and is available at no cost. There are no licensing fees or subscription costs. _Source: [https://rust-random.github.io/book](https://rust-random.github.io/book)._ ### Can I view and modify the source code? As an open-source project, rand_chacha's source code is publicly available for review, study, and modification according to its open-source license terms. _Source: [https://rust-random.github.io/book](https://rust-random.github.io/book)._ ### What programming language does rand_chacha support? rand_chacha is designed specifically for the Rust programming language. It integrates with Rust's random number generation ecosystem. _Source: [https://rust-random.github.io/book](https://rust-random.github.io/book)._ ### Where can I find documentation for rand_chacha? Documentation is available on the project's official website. Developers can consult these resources when implementing the library in their projects. _Source: [https://rust-random.github.io/book](https://rust-random.github.io/book)._ ### Can I use rand_chacha in commercial projects? Yes, as open-source software, rand_chacha can be used in commercial applications. There are no licensing fees, though users should review the project's license terms for any specific requirements. _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 | 8 | [link](https://github.com/rust-random/rand/pulse) | 2026-07-30 | 65% (medium) | ### adoption | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | adoption.github_stars | 2,061 | [link](https://github.com/rust-random/rand) | 2026-07-30 | 90% (high) | ### language | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | language.primary | Rust | [link](https://github.com/rust-random/rand) | 2026-07-30 | 90% (high) | ### pricing | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | pricing.free_tier | yes | [link](https://rust-random.github.io/book) | 2026-07-30 | 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 | 3 | [link](https://github.com/rust-random/rand/releases) | 2026-07-30 | 70% (medium) | ### content | Attribute | Value | Source | Retrieved | Confidence | |---|---|---|---|---| | content.faq | `[{"answer":"rand_chacha is a random number generation library for the Rust programming language that implements the ChaCha algorithm. It enables Rust applications to generate random numbers.","source":"https://rust-random.github.io/book","question":"What is rand_chacha?","confidence":0.95},{"answer":"Yes, rand_chacha is open-source software and is available at no cost. There are no licensing fees or subscription costs.","source":"https://rust-random.github.io/book","question":"Is rand_chacha free to use?","confidence":0.98},{"answer":"As an open-source project, rand_chacha's source code is publicly available for review, study, and modification according to its open-source license terms.","source":"https://rust-random.github.io/book","question":"Can I view and modify the source code?","confidence":0.95},{"answer":"rand_chacha is designed specifically for the Rust programming language. It integrates with Rust's random number generation ecosystem.","source":"https://rust-random.github.io/book","question":"What programming language does rand_chacha support?","confidence":0.98},{"answer":"Documentation is available on the project's official website. Developers can consult these resources when implementing the library in their projects.","source":"https://rust-random.github.io/book","question":"Where can I find documentation for rand_chacha?","confidence":0.92},{"answer":"Yes, as open-source software, rand_chacha can be used in commercial applications. There are no licensing fees, though users should review the project's license terms for any specific requirements.","source":"https://rust-random.github.io/book","question":"Can I use rand_chacha in commercial projects?","confidence":0.95}]` | [link](https://rust-random.github.io/book) | 2026-07-30 | 96% (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-chacha). Independent, evidence-based software intelligence. Cite the canonical URI.*