/usr/lib/nodejs/parse-asn1/fixProc.js is in node-parse-asn1 5.1.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | // adapted from https://github.com/apatil/pemstrip
var findProc = /Proc-Type: 4,ENCRYPTED\n\r?DEK-Info: AES-((?:128)|(?:192)|(?:256))-CBC,([0-9A-H]+)\n\r?\n\r?([0-9A-z\n\r\+\/\=]+)\n\r?/m
var startRegex = /^-----BEGIN ((?:.* KEY)|CERTIFICATE)-----\n/m
var fullRegex = /^-----BEGIN ((?:.* KEY)|CERTIFICATE)-----\n\r?([0-9A-z\n\r\+\/\=]+)\n\r?-----END \1-----$/m
var evp = require('evp_bytestokey')
var ciphers = require('browserify-aes')
module.exports = function (okey, password) {
var key = okey.toString()
var match = key.match(findProc)
var decrypted
if (!match) {
var match2 = key.match(fullRegex)
decrypted = new Buffer(match2[2].replace(/\r?\n/g, ''), 'base64')
} else {
var suite = 'aes' + match[1]
var iv = new Buffer(match[2], 'hex')
var cipherText = new Buffer(match[3].replace(/\r?\n/g, ''), 'base64')
var cipherKey = evp(password, iv.slice(0, 8), parseInt(match[1], 10)).key
var out = []
var cipher = ciphers.createDecipheriv(suite, cipherKey, iv)
out.push(cipher.update(cipherText))
out.push(cipher.final())
decrypted = Buffer.concat(out)
}
var tag = key.match(startRegex)[1]
return {
tag: tag,
data: decrypted
}
}
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