@li0ard/tsemrtd/dist/dg14.js

simple library for eMRTD. supports browsers, node, bun and more!

import { TLV } from "@li0ard/tinytlv";
import { Enums, Oids } from "./index";
import { AsnConvert } from "@peculiar/asn1-schema";
import { ChipAuthenticationDomainParameterInfo, ChipAuthenticationInfo, ChipAuthenticationPublicKeyInfo, SecurityInfos, TerminalAuthenticationInfo } from "./asn1/eac";
/**
 * Class for working with DG14 (EAC/PACE authentication info)
*/
export class DG14 {
    /**
     * Get EAC/PACE security informations
     * @param data Data of EF.DG14 file
     */
    static load(data) {
        let tlv = TLV.parse(data);
        if (parseInt(tlv.tag, 16) != Enums.TAGS.DG14)
            throw new Error(`Invalid DG14 tag "0x${tlv.tag}", expected 0x${Enums.TAGS.DG14.toString(16)}`);
        let infos = AsnConvert.parse(tlv.byteValue, SecurityInfos);
        let set = new SecurityInfos();
        for (let i of infos) {
            if (i.protocol == Oids.TerminalAuthentication) {
                set.push(AsnConvert.parse(AsnConvert.serialize(i), TerminalAuthenticationInfo));
            }
            else if (Object.values(Oids.ChipAuthInfo).includes(i.protocol)) {
                set.push(AsnConvert.parse(AsnConvert.serialize(i), ChipAuthenticationInfo));
            }
            else if (Object.values(Oids.ChipAuthPublicKey).includes(i.protocol)) {
                set.push(AsnConvert.parse(AsnConvert.serialize(i), ChipAuthenticationPublicKeyInfo));
            }
            else if (Object.values(Oids.ChipAuthDomainParameters).includes(i.protocol)) {
                set.push(AsnConvert.parse(AsnConvert.serialize(i), ChipAuthenticationDomainParameterInfo));
            }
            else {
                set.push(i);
            }
        }
        return set;
    }
}