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Crypto / Cipher

Apache-2.0Release 1L3

Low-level block / stream primitives (one block / one keystream at a time). For full-buffer encryption, use an operating mode from crypto/mode/.

Module Returns Deps Description
aes {name, fn, bitsliced} none AES-128/192/256 (FIPS 197) single block + opt-in constant-time bitsliced variant
chacha20 {name, xor, xchacha20, _internal} none ChaCha20 IETF (RFC 8439) — keystream stream-cipher

Common pattern

const aes = fw.runtime.resolve('aes');
const cipher = aes.fn(keyAs32BitWords);          // schedule
const ct = cipher.encrypt(ptBlock4Words);        // one 16-byte block
const pt = cipher.decrypt(ctBlock4Words);

For streaming / multi-block, pass cipher to mode/{cbc,ctr,gcm,kw,cmac}.js.

See also