35 lines
1.0 KiB
TypeScript
35 lines
1.0 KiB
TypeScript
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"use strict";
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import * as hash from "hash.js";
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import { arrayify, BytesLike } from "@ethersproject/bytes";
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import * as errors from "@ethersproject/errors";
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export enum SupportedAlgorithms { sha256 = "sha256", sha512 = "sha512" };
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export function ripemd160(data: BytesLike): string {
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return "0x" + (hash.ripemd160().update(arrayify(data)).digest("hex"));
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}
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export function sha256(data: BytesLike): string {
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return "0x" + (hash.sha256().update(arrayify(data)).digest("hex"));
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}
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export function sha512(data: BytesLike): string {
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return "0x" + (hash.sha512().update(arrayify(data)).digest("hex"));
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}
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export function computeHmac(algorithm: SupportedAlgorithms, key: BytesLike, data: BytesLike): string {
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if (!SupportedAlgorithms[algorithm]) {
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errors.throwError("unsupported algorithm " + algorithm, errors.UNSUPPORTED_OPERATION, {
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operation: "hmac",
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algorithm: algorithm
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});
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}
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return "0x" + hash.hmac((<any>hash)[algorithm], arrayify(key)).update(arrayify(data)).digest();
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}
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