Skip to main content

Solved mission critical problem using reverse engineering

Here I'm sharing an incident that happened in 2017, when I had managed to solve a mission critical problem using reverse engineering and what I have learnt from it.

The incident was when I have been allocated a migration task. My whole project was migrated to webpack from system.js due to which integration build generator broke. So I got this task to migrate that integration build generator too and make it compatible to webpack within a week. I knew that I got this after another colleague failed to complete it in previous sprint. So there was a higher chance of missing the deadline because half of the time was already got consumed by previous colleague. I got this issue when it was about to be escalated in case I fail.

I thought if I'll go by the same path as my colleague then I may get the same result that he got. So I changed my strategy and look into the problem by reverse engineering it. Well, doing that gave me enough hints to solve the problem and fix the generator by having minimal impact. So after doing further analysis, I'd managed to fix the issue in 40% less time than was initially expected.

From this incident I learnt that sometimes it's good to see the problem from reverse angle instead of just front view.

Comments

Post a Comment

Popular posts from this blog

Unlock protected blocks in Siemens SIMATIC Step 7

Recently I'd been called by Hindalco's Fabrication Plant division to unlock the protected blocks in Siemens SIMATIC Step 7. They were in need to unlock those blocks since an year because of 1 million Rupees of loss per month. They want to re-program those blocks but it was locked by the man who'd done the setup. From the people working in that department, I came to know that they were trying to call that man (someone from Italy) right here but he's not coming. Actually, what he'd done was that he'd locked some of the blocks and deleted the source file. And Siemens didn't provide any feature to unlock. Department people also told me that even the people working in Siemens don't know how to do it. Being a software engineer I know that any thing can be reverse engineered. So I took up the challenge. How did I unlocked the blocks? The first thing I'd done was searched about this software at Google and read about what is this software all about. Aft...
50 comments
Read more

JS: The complete code example of Crypto.js (DES)

For one of the project I was trying to use crypto.js but I found that the Quick-start Guide have some deficiency in terms of library usage. So I am writing it here as a useful note for memory recap. <script src="http://crypto-js.googlecode.com/svn/tags/3.1.2/build/rollups/tripledes.js"></script> <script> var encrypted = CryptoJS.DES.encrypt("The secret message", "secret_key"); var e_msg = encrypted.toString(); console.log(e_msg); var decrypted = CryptoJS.DES.decrypt(e_msg, "secret_key"); var d_msg = decrypted.toString(CryptoJS.enc.Utf8); console.log(d_msg); </script>
4 comments
Read more

Encode or decode date in 3 characters

I have developed a new way to encode/decode dates within 3 characters by using base-36 format. What is a base 36 format? Base 36 or hexatridecimal is a positional numeral system using 36 as the radix. The choice of 36 is convenient in that the digits can be represented using the Arabic numerals 0-9 and the Latin letters A-Z. In simple language, base-36 format refers to series of 0-9 followed by A-Z characters, i.e., 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ; where each character refers to the position index in series. The concept can also be represents as shown in the below table Series Character Series Character Series Character Series Character 0 0 10 A 20 K 30 U 1 1 11 B 21 L 31 V 2 2 12 C 22 M 32 W 3 3 13 D 23 N 33 X 4 4 14 E 24 O 34 Y 5 5 15 F 25 P ...
Post a Comment
Read more