/var/www/greso.tech/server/nsm/node_modules/jose/dist/node/esm/runtime
Edit: /var/www/greso.tech/server/nsm/node_modules/jose/dist/node/esm/runtime/asn1_sequence_encoder.js (3344B)
import { Buffer } from 'buffer';
import { JOSENotSupported } from '../util/errors.js';
const tagInteger = 0x02;
const tagBitStr = 0x03;
const tagOctStr = 0x04;
const tagSequence = 0x30;
const bZero = Buffer.from([0x00]);
const bTagInteger = Buffer.from([tagInteger]);
const bTagBitStr = Buffer.from([tagBitStr]);
const bTagSequence = Buffer.from([tagSequence]);
const bTagOctStr = Buffer.from([tagOctStr]);
const encodeLength = (len) => {
if (len < 128)
return Buffer.from([len]);
const buffer = Buffer.alloc(5);
buffer.writeUInt32BE(len, 1);
let offset = 1;
while (buffer[offset] === 0)
offset++;
buffer[offset - 1] = 0x80 | (5 - offset);
return buffer.slice(offset - 1);
};
const oids = new Map([
['P-256', Buffer.from('06 08 2A 86 48 CE 3D 03 01 07'.replace(/ /g, ''), 'hex')],
['secp256k1', Buffer.from('06 05 2B 81 04 00 0A'.replace(/ /g, ''), 'hex')],
['P-384', Buffer.from('06 05 2B 81 04 00 22'.replace(/ /g, ''), 'hex')],
['P-521', Buffer.from('06 05 2B 81 04 00 23'.replace(/ /g, ''), 'hex')],
['ecPublicKey', Buffer.from('06 07 2A 86 48 CE 3D 02 01'.replace(/ /g, ''), 'hex')],
['X25519', Buffer.from('06 03 2B 65 6E'.replace(/ /g, ''), 'hex')],
['X448', Buffer.from('06 03 2B 65 6F'.replace(/ /g, ''), 'hex')],
['Ed25519', Buffer.from('06 03 2B 65 70'.replace(/ /g, ''), 'hex')],
['Ed448', Buffer.from('06 03 2B 65 71'.replace(/ /g, ''), 'hex')],
]);
export default class DumbAsn1Encoder {
constructor() {
this.length = 0;
this.elements = [];
}
oidFor(oid) {
const bOid = oids.get(oid);
if (!bOid) {
throw new JOSENotSupported('Invalid or unsupported OID');
}
this.elements.push(bOid);
this.length += bOid.length;
}
zero() {
this.elements.push(bTagInteger, Buffer.from([0x01]), bZero);
this.length += 3;
}
one() {
this.elements.push(bTagInteger, Buffer.from([0x01]), Buffer.from([0x01]));
this.length += 3;
}
unsignedInteger(integer) {
if (integer[0] & 0x80) {
const len = encodeLength(integer.length + 1);
this.elements.push(bTagInteger, len, bZero, integer);
this.length += 2 + len.length + integer.length;
}
else {
let i = 0;
while (integer[i] === 0 && (integer[i + 1] & 0x80) === 0)
i++;
const len = encodeLength(integer.length - i);
this.elements.push(bTagInteger, encodeLength(integer.length - i), integer.slice(i));
this.length += 1 + len.length + integer.length - i;
}
}
octStr(octStr) {
const len = encodeLength(octStr.length);
this.elements.push(bTagOctStr, encodeLength(octStr.length), octStr);
this.length += 1 + len.length + octStr.length;
}
bitStr(bitS) {
const len = encodeLength(bitS.length + 1);
this.elements.push(bTagBitStr, encodeLength(bitS.length + 1), bZero, bitS);
this.length += 1 + len.length + bitS.length + 1;
}
add(seq) {
this.elements.push(seq);
this.length += seq.length;
}
end(tag = bTagSequence) {
const len = encodeLength(this.length);
return Buffer.concat([tag, len, ...this.elements], 1 + len.length + this.length);
}
}