Crate cryptography 

Classical and modern block ciphers, stream ciphers, and DRBGs implemented in pure, safe, portable Rust directly from their published specifications.

Public-key primitives are variable-time by policy (X25519 / X448 are the constant-time exceptions; everything else uses generic BigUint arithmetic that is not constant-time). Two equivalent paths reach the same types: crate::vt (flat re-export, kept as a hint that the surface is variable-time) and crate::public_key (the natural module tree). Both are supported public APIs.

Entropy warning:

• This crate does not provide an operating-system entropy source.
• CtrDrbgAes256 is a deterministic DRBG, not a seed generator.
• Callers must provide high-entropy external seed material for all randomness-dependent operations.

Re-exports

pub use ciphers::aes;

pub use ciphers::camellia;

pub use ciphers::cast128;

pub use ciphers::chacha20;

pub use ciphers::des;

pub use ciphers::grasshopper;

pub use ciphers::magma;

pub use ciphers::present;

pub use ciphers::rabbit;

pub use ciphers::salsa20;

pub use ciphers::seed;

pub use ciphers::serpent;

pub use ciphers::simon;

pub use ciphers::sm4;

pub use ciphers::snow3g;

pub use ciphers::speck;

pub use ciphers::twofish;

pub use ciphers::zuc;

pub use ciphers::aes::Aes128;

pub use ciphers::aes::Aes128Ct;

pub use ciphers::aes::Aes192;

pub use ciphers::aes::Aes192Ct;

pub use ciphers::aes::Aes256;

pub use ciphers::aes::Aes256Ct;

pub use ciphers::camellia::Camellia;

pub use ciphers::camellia::Camellia128;

pub use ciphers::camellia::Camellia128Ct;

pub use ciphers::camellia::Camellia192;

pub use ciphers::camellia::Camellia192Ct;

pub use ciphers::camellia::Camellia256;

pub use ciphers::camellia::Camellia256Ct;

pub use ciphers::camellia::CamelliaCt;

pub use ciphers::cast128::Cast128;

pub use ciphers::cast128::Cast128Ct;

pub use ciphers::cast128::Cast5;

pub use ciphers::cast128::Cast5Ct;

pub use ciphers::chacha20::ChaCha20;

pub use ciphers::chacha20::XChaCha20;

pub use ciphers::des::key_schedule;

pub use ciphers::des::Des;

pub use ciphers::des::DesCt;

pub use ciphers::des::KeySchedule;

pub use ciphers::des::TDesMode;

pub use ciphers::des::TripleDes;

pub use ciphers::grasshopper::Grasshopper;

pub use ciphers::grasshopper::GrasshopperCt;

pub use ciphers::magma::Magma;

pub use ciphers::magma::MagmaCt;

pub use ciphers::present::Present;

pub use ciphers::present::Present128;

pub use ciphers::present::Present128Ct;

pub use ciphers::present::Present80;

pub use ciphers::present::Present80Ct;

pub use ciphers::present::PresentCt;

pub use ciphers::rabbit::Rabbit;

pub use ciphers::salsa20::Salsa20;

pub use ciphers::seed::Seed;

pub use ciphers::seed::SeedCt;

pub use ciphers::serpent::Serpent;

pub use ciphers::serpent::Serpent128;

pub use ciphers::serpent::Serpent128Ct;

pub use ciphers::serpent::Serpent192;

pub use ciphers::serpent::Serpent192Ct;

pub use ciphers::serpent::Serpent256;

pub use ciphers::serpent::Serpent256Ct;

pub use ciphers::serpent::SerpentCt;

pub use ciphers::simon::Simon128_128;

pub use ciphers::simon::Simon128_192;

pub use ciphers::simon::Simon128_256;

pub use ciphers::simon::Simon32_64;

pub use ciphers::simon::Simon48_72;

pub use ciphers::simon::Simon48_96;

pub use ciphers::simon::Simon64_128;

pub use ciphers::simon::Simon64_96;

pub use ciphers::simon::Simon96_144;

pub use ciphers::simon::Simon96_96;

pub use ciphers::sm4::Sm4;

pub use ciphers::sm4::Sm4Ct;

pub use ciphers::sm4::Sms4;

pub use ciphers::sm4::Sms4Ct;

pub use ciphers::snow3g::Snow3g;

pub use ciphers::snow3g::Snow3gCt;

pub use ciphers::speck::Speck128_128;

pub use ciphers::speck::Speck128_192;

pub use ciphers::speck::Speck128_256;

pub use ciphers::speck::Speck32_64;

pub use ciphers::speck::Speck48_72;

pub use ciphers::speck::Speck48_96;

pub use ciphers::speck::Speck64_128;

pub use ciphers::speck::Speck64_96;

pub use ciphers::speck::Speck96_144;

pub use ciphers::speck::Speck96_96;

pub use ciphers::twofish::Twofish;

pub use ciphers::twofish::Twofish128;

pub use ciphers::twofish::Twofish128Ct;

pub use ciphers::twofish::Twofish192;

pub use ciphers::twofish::Twofish192Ct;

pub use ciphers::twofish::Twofish256;

pub use ciphers::twofish::Twofish256Ct;

pub use ciphers::twofish::TwofishCt;

pub use ciphers::zuc::Zuc128;

pub use ciphers::zuc::Zuc128Ct;

pub use cprng::ctr_drbg::CtrDrbgAes256;

pub use hash::hkdf::Hkdf;

pub use hash::hmac::Hmac;

pub use hash::md5::Md5;

pub use hash::ripemd160::Ripemd160;

pub use hash::sha1::Sha1;

pub use hash::sha2::Sha224;

pub use hash::sha2::Sha256;

pub use hash::sha2::Sha384;

pub use hash::sha2::Sha512;

pub use hash::sha2::Sha512_224;

pub use hash::sha2::Sha512_256;

pub use hash::sha3::Sha3_224;

pub use hash::sha3::Sha3_256;

pub use hash::sha3::Sha3_384;

pub use hash::sha3::Sha3_512;

pub use hash::sha3::Shake128;

pub use hash::sha3::Shake256;

pub use hash::Digest;

pub use hash::Xof;

pub use modes::Aes128GcmSiv;

pub use modes::Aes256GcmSiv;

pub use modes::AesKeyWrap;

pub use modes::Cbc;

pub use modes::Ccm;

pub use modes::Cfb;

pub use modes::Cfb8;

pub use modes::ChaCha20Poly1305;

pub use modes::Cmac;

pub use modes::Ctr;

pub use modes::Eax;

pub use modes::Ecb;

pub use modes::Gcm;

pub use modes::GcmVt;

pub use modes::Gmac;

pub use modes::GmacVt;

pub use modes::Ocb;

pub use modes::Ofb;

pub use modes::Poly1305;

pub use modes::Siv;

pub use modes::Xts;

Modules

ciphers

Block and stream ciphers.

cprng

Cryptographically motivated pseudorandom generators and DRBGs.

hash

Hash functions, XOFs, and message-authentication helpers.

modes

Generic block-cipher modes of operation.

public_key

Public-key building blocks.

vt

Explicit variable-time public-key surface.

Traits

Aead

Common interface for AEAD constructions with detached tags.

BlockCipher

Common interface for block ciphers.

Csprng

Common interface for byte-oriented CSPRNG/DRBG outputs.

StreamCipher

Common interface for stream ciphers.

Functions

zeroize_slice

Overwrites every element of slice with its Default value.