From e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d Mon Sep 17 00:00:00 2001
From: Piotr Russ <mail@pruss.it>
Date: Mon, 16 Nov 2020 00:10:28 +0100
Subject: api, login, auth

---
 node_modules/parse-asn1/fixProc.js | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 node_modules/parse-asn1/fixProc.js

(limited to 'node_modules/parse-asn1/fixProc.js')

diff --git a/node_modules/parse-asn1/fixProc.js b/node_modules/parse-asn1/fixProc.js
new file mode 100644
index 0000000..4684971
--- /dev/null
+++ b/node_modules/parse-asn1/fixProc.js
@@ -0,0 +1,31 @@
+// 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]+([0-9A-z\n\r+/=]+)[\n\r]+/m
+var startRegex = /^-----BEGIN ((?:.*? KEY)|CERTIFICATE)-----/m
+var fullRegex = /^-----BEGIN ((?:.*? KEY)|CERTIFICATE)-----([0-9A-z\n\r+/=]+)-----END \1-----$/m
+var evp = require('evp_bytestokey')
+var ciphers = require('browserify-aes')
+var Buffer = require('safe-buffer').Buffer
+module.exports = function (okey, password) {
+  var key = okey.toString()
+  var match = key.match(findProc)
+  var decrypted
+  if (!match) {
+    var match2 = key.match(fullRegex)
+    decrypted = Buffer.from(match2[2].replace(/[\r\n]/g, ''), 'base64')
+  } else {
+    var suite = 'aes' + match[1]
+    var iv = Buffer.from(match[2], 'hex')
+    var cipherText = Buffer.from(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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