multiformats/dist/src/hashes/identity.js

Interface for multihash, multicodec, multibase and CID

import { coerce } from "../bytes.js";
import * as Digest from "./digest.js";
const code = 0x0;
const name = 'identity';
const encode = coerce;
function digest(input, options) {
    if (options?.truncate != null && options.truncate !== input.byteLength) {
        if (options.truncate < 0 || options.truncate > input.byteLength) {
            throw new Error(`Invalid truncate option, must be less than or equal to ${input.byteLength}`);
        }
        input = input.subarray(0, options.truncate);
    }
    return Digest.create(code, encode(input));
}
export const identity = { code, name, encode, digest };
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