[package]
name = "chacha20"
version = "0.10.1"
authors = ["RustCrypto Developers"]
edition = "2024"
rust-version = "1.85"
documentation = "https://docs.rs/chacha20"
readme = "README.md"
repository = "https://github.com/RustCrypto/stream-ciphers"
license = "MIT OR Apache-2.0"
keywords = ["crypto", "stream-cipher", "chacha8", "chacha12", "xchacha20"]
categories = ["cryptography", "no-std"]
description = """
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.
"""

[dependencies]
cfg-if = "1"
cipher = { version = "0.5", optional = true, features = ["stream-wrapper"] }
rand_core = { version = "0.10", optional = true, default-features = false }

# `zeroize` is an explicit dependency because this crate may be used without the `cipher` crate
zeroize = { version = "1.8.1", optional = true, default-features = false }

[target.'cfg(any(target_arch = "x86_64", target_arch = "x86"))'.dependencies]
cpufeatures = "0.3"

[dev-dependencies]
cipher = { version = "0.5", features = ["dev"] }
hex-literal = "1"

[features]
default = ["cipher"]
legacy = ["cipher"]
rng = ["dep:rand_core"]
xchacha = ["cipher"]

[lints.rust]
missing_copy_implementations = "warn"
missing_debug_implementations = "warn"
missing_docs = "warn"
trivial_casts = "warn"
trivial_numeric_casts = "warn"
unreachable_pub = "warn"
unused_lifetimes = "warn"
unused_qualifications = "warn"

[lints.rust.unexpected_cfgs]
level = "warn"
check-cfg = [
    'cfg(chacha20_avx512)',
    'cfg(chacha20_backend, values("avx2", "avx512", "soft", "sse2"))'
]

[lints.clippy]
borrow_as_ptr = "warn"
cast_lossless = "warn"
cast_possible_truncation = "warn"
cast_possible_wrap = "warn"
cast_precision_loss = "warn"
cast_sign_loss = "warn"
checked_conversions = "warn"
from_iter_instead_of_collect = "warn"
implicit_saturating_sub = "warn"
manual_assert = "warn"
map_unwrap_or = "warn"
missing_errors_doc = "warn"
missing_panics_doc = "warn"
mod_module_files = "warn"
must_use_candidate = "warn"
needless_range_loop = "allow"
ptr_as_ptr = "warn"
redundant_closure_for_method_calls = "warn"
ref_as_ptr = "warn"
return_self_not_must_use = "warn"
semicolon_if_nothing_returned = "warn"
trivially_copy_pass_by_ref = "warn"
std_instead_of_alloc = "warn"
std_instead_of_core = "warn"
undocumented_unsafe_blocks = "warn"
unnecessary_safety_comment = "warn"
unwrap_in_result = "warn"
unwrap_used = "warn"

[package.metadata.docs.rs]
all-features = true