@swtc/keypairs/esm/sha512.js

swtc keypairs

import hashjs from "hash.js";
import BigNum from "bn.js";
export default class Sha512 {
    constructor() {
        this.hash = hashjs.sha512();
    }
    add(bytes) {
        this.hash.update(bytes);
        return this;
    }
    addU32(i) {
        return this.add([
            (i >>> 24) & 0xff,
            (i >>> 16) & 0xff,
            (i >>> 8) & 0xff,
            i & 0xff
        ]);
    }
    finish() {
        return this.hash.digest();
    }
    first256() {
        return this.finish().slice(0, 32);
    }
    first256BN() {
        return new BigNum(this.first256());
    }
}
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