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metamask-extension/shared/modules/hash.utils.ts

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/* eslint-disable no-undef */
export async function sha256(str: string): Promise<string> {
const buf = await crypto.subtle.digest(
'SHA-256',
new TextEncoder().encode(str),
);
return Array.prototype.map
.call(new Uint8Array(buf), (x: number) => `00${x.toString(16)}`.slice(-2))
.join('');
}