import { Hash } from './hash';
/**
 * Returns the input message unchanged. This can be used if the signing implementation requires the full message bytes,
 * not just a pre-generated digest, such as Ed25519.
 */
export declare const none: Hash;
/**
 * SHA256 hash the supplied message bytes to create a digest for signing.
 */
export declare const sha256: Hash;
/**
 * SHA384 hash the supplied message bytes to create a digest for signing.
 */
export declare const sha384: Hash;
/**
 * SHA3-256 hash the supplied message bytes to create a digest for signing.
 */
export declare const sha3_256: Hash;
/**
 * SHA3-384 hash the supplied message bytes to create a digest for signing.
 */
export declare const sha3_384: Hash;
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