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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.// Copyright 2017 crypto-browserify. All rights reserved. MIT license.// from https://github.com/crypto-browserify/parse-asn1/blob/fbd70dca8670d17955893e083ca69118908570be/fixProc.js
import evp from "../evp_bytes_to_key.ts";import * as ciphers from "../browserify_aes/mod.js";import { Buffer } from "../../../buffer.ts";
const findProc =  /Proc-Type: 4,ENCRYPTED[\n\r]+DEK-Info: AES-((?:128)|(?:192)|(?:256))-CBC,([0-9A-H]+)[\n\r]+([0-9A-z\n\r+/=]+)[\n\r]+/m;const startRegex = /^-----BEGIN ((?:.*? KEY)|CERTIFICATE)-----/m;const fullRegex =  /^-----BEGIN ((?:.*? KEY)|CERTIFICATE)-----([0-9A-z\n\r+/=]+)-----END \1-----$/m;export default function (okey, password) {  const key = okey.toString();  const match = key.match(findProc);  let decrypted;  if (!match) {    const match2 = key.match(fullRegex);    decrypted = Buffer.from(match2[2].replace(/[\r\n]/g, ""), "base64");  } else {    const suite = "aes" + match[1];    const iv = Buffer.from(match[2], "hex");    const cipherText = Buffer.from(match[3].replace(/[\r\n]/g, ""), "base64");    const cipherKey = evp(password, iv.slice(0, 8), parseInt(match[1], 10)).key;    const out = [];    const cipher = ciphers.createDecipheriv(suite, cipherKey, iv);    out.push(cipher.update(cipherText));    out.push(cipher.final());    decrypted = Buffer.concat(out);  }  const tag = key.match(startRegex)[1];  return {    tag: tag,    data: decrypted,  };}