Package · crates.io

chacha20

crates.io · v0.10.2 · MIT OR Apache-2.0

The ChaCha20 stream cipher (RFC 8439) implemented in pure Rust using traits from the RustCrypto `cipher` crate, with optional architecture-specific hardware acceleration (AVX2, SSE2). Additionally provides the ChaCha8, ChaCha12, XChaCha20, XChaCha12 and XChaCha8 stream ciphers, and also optional rand_core-compatible RNGs based on those ciphers.

Tentative categories were assigned with moderate confidence (0.5 to 0.75): they are shown, but they do not count toward a category’s momentum. How categories work

Install

cargo add chacha20

Adoption

Downloads (90 days)
164.1M
Observeddownloads / 90 days
Popularity
Top 10% on crates.io
Derived98th percentile within crates.io
Dependents
259
Observedpackages that depend on it
All-time downloads
304.9M
Observedsince first publish
Maintenance
0.71
DerivedRelease cadence and recency, 0 to 1
Releases per year
4.5
45 versions over its life

Growth by period

Derived by Crest of Tech from two observations of crates.io’s own figure, a period apart. Nothing is stored or estimated: without an observation near the period’s start, the period is still collecting.

7 days
Collectinghistory
Collecting
30 days
Collectinghistory
Collecting
90 days
Collectinghistory
Collecting
1 year
Collectinghistory
Collecting

Adoption history

Adoption historydownloads / 90 days

Observations in this range began OCT 5, 2026. The chart appears after 7 observations; 2 so far. Collecting history.

Table of observations (13)
Daydownloads / 90 daysDependents
OCT 24, 2026164,090,676259
OCT 5, 2026134,903,368Not observed
OCT 4, 2026Not observedNot observed
OCT 3, 2026Not observedNot observed
OCT 2, 2026Not observedNot observed
OCT 1, 2026Not observedNot observed
SEP 30, 2026Not observedNot observed
SEP 29, 2026Not observedNot observed
SEP 28, 2026Not observedNot observed
SEP 27, 2026Not observedNot observed
SEP 26, 2026Not observedNot observed
SEP 25, 2026Not observedNot observed
SEP 24, 2026Not observedNot observed

Facts from the registry

Latest version
v0.10.2
45 versions
First published
OCT 6, 2016
Last release
AUG 27, 2026
58d ago
Licence
MIT OR Apache-2.0

Repository

Not in the Crest catalog

rustcrypto/stream-ciphers (GitHub, opens in a new tab)

The catalog tracks GitHub repositories with more than 500 stars; this one has no Crest page, so its figures are not shown here.

Dependencies latest version · v0.10.2

Runtime 2

  • cfg-if^1
  • cpufeatures^0.3

Optional 3

  • cipher^0.5
  • rand_core^0.10
  • zeroize^1.8.1

Related news

No published news event mentions this package or its repository yet.