21 lines
1.0 KiB
TypeScript
21 lines
1.0 KiB
TypeScript
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import { type XorStream } from './utils.js';
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export declare function rotl(a: number, b: number): number;
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/** Ciphers must use u32 for efficiency. */
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export type CipherCoreFn = (sigma: Uint32Array, key: Uint32Array, nonce: Uint32Array, output: Uint32Array, counter: number, rounds?: number) => void;
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/** Method which extends key + short nonce into larger nonce / diff key. */
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export type ExtendNonceFn = (sigma: Uint32Array, key: Uint32Array, input: Uint32Array, output: Uint32Array) => void;
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/** ARX cipher options.
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* * `allowShortKeys` for 16-byte keys
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* * `counterLength` in bytes
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* * `counterRight`: right: `nonce|counter`; left: `counter|nonce`
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* */
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export type CipherOpts = {
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allowShortKeys?: boolean;
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extendNonceFn?: ExtendNonceFn;
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counterLength?: number;
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counterRight?: boolean;
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rounds?: number;
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};
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/** Creates ARX-like (ChaCha, Salsa) cipher stream from core function. */
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export declare function createCipher(core: CipherCoreFn, opts: CipherOpts): XorStream;
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//# sourceMappingURL=_arx.d.ts.map
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