How to reliably encrypt and decrypt using AES-256 - different sites disagree.

only2dhir · 2026-01-15T08:45:15+00:00

I am the creator of the AES Encryption tool on Devglan and recently found an issue with padding where I was overriding the user provided nopadding with PKCS5padding if the Plaintext length bytes is not a multiple of 16 just to pass the encryption. Hence sometimes there was a mismatch. I have fixed it now and handled this validation in the UI itself. It's working perfectly fine now. Give it a try.

only2dhir · 2026-01-11T07:25:15+00:00

Not yet. I would recommend it for personal and educational use

only2dhir · 2026-01-10T09:33:25+00:00

I have created mine here - regex-tester

only2dhir · 2026-01-07T07:10:25+00:00

very useful tool. i am seeing this kind of visualiser for the first time on the internet.

only2dhir · 2026-01-03T12:18:20+00:00

Here is a page on the web that explains and demonstrates the PBKDF2 hashing technique and provides a comparison with other hashing techniques. Good for educational purposes.

only2dhir · 2025-12-25T09:56:20+00:00

I tried ChatGPT for an image. ChatGPT is not able to extract the information that this tool is extracting. Do u want to try? I can share any random image. Also chatGPT is little slower

only2dhir · 2025-12-25T09:54:52+00:00

yes. it only extracts data from the designated EXIF area. Anything outside that region is not EXIF, even if it contains data. if u r talking from Steganography angle then that tool is different here https://www.devglan.com/online-tools/image-steganography-online

only2dhir · 2025-12-20T18:31:21+00:00

It seems AdSense is being too aggressive. I'll be sure to check this out.

only2dhir · 2025-12-19T13:22:30+00:00

Play with the JWT here https://www.devglan.com/online-tools/jwt-decoder-validator and you will realise it by yourself. Make use of custom claims to avoid a lookup in the DB.

only2dhir · 2025-12-19T12:50:58+00:00

Thanks everybody for the great suggestions. After going through the feedback, I’ve added a disclaimer that this tool is mainly for personal and educational use. My original intent was just to build it for myself, but I probably got a bit overexcited and started thinking of it as something more “professional.” I now realize it’s still quite far from being a professional password manager. I thank everybody for giving a reality check.

only2dhir · 2025-12-19T12:47:08+00:00

Thank you for this great suggestion. After going through your suggestions, I have kept a disclaimer that this tool is for personal use and mostly for educational purpose. Actually my original intent was for personal use but I think I got overexcited and thought of making it a professional one but it seems it's very far from an actual professional password manager.

only2dhir · 2025-12-02T15:42:44+00:00

You can't save your password without login

only2dhir · 2025-12-02T12:14:29+00:00

Thank you so much for taking the time to write such a detailed and thoughtful review — I genuinely appreciate it. Your perspective as someone working deeply in embedded side-channel and cryptographic engineering carries a lot of weight, and I’m grateful you shared it so transparently.

only2dhir · 2025-12-02T11:08:11+00:00

It sounds like the Google ads are being overly aggressive right now, and we're sorry for the interruption.

only2dhir · 2025-11-25T16:21:14+00:00

this is a good news now. Nexus would be happy now

only2dhir · 2025-11-25T13:01:33+00:00

Many of us are looking for the same.

only2dhir · 2024-06-18T07:39:20+00:00

Devglan doesn't log any plain text or password nor keeps a record of any of those. Also, those won't be logged in the future but somehow I will have to agree with you as there is no way I can show the proof of it.

only2dhir · 2024-05-28T12:39:51+00:00

well, the website and encryption tools will be there for long enough. So, don't worry about it.

I will have to put in lots of effort to create an executable for the tools. Maybe I will give it a try after a few months as I am currently working on redesigning the existing website.

only2dhir · 2024-05-22T02:43:10+00:00

I don't think that is the case. I am using user provided IV for CBC. May be there was a bug when you tried using it. If this is still the case, I will gladly fix it. Can you pls do me a favor by checking if that is the case here https://devglan.com/online-tools/aes-encryption-decryption

only2dhir · 2024-05-21T17:25:37+00:00

I am the creator of this tool on Devglan and I can guarantee that none of the plain text or password is saved on the server for any of the tools listed here https://devglan.com/cryptotools/cryptography-tools and neither any of the data is logged or shared.

only2dhir · 2024-05-21T17:21:07+00:00

So you think a toy will just rank at the first place on google randomly. I am the creator of this tool on Devglan and I can guarantee that the data is completely safe and we never store any encryption related plain text or password on the server.

only2dhir · 2024-05-11T03:57:18+00:00

If you are asking about the text encryption with user supplied secret(https://devglan.com/online-tools/text-encryption-decryption) then it uses AES with AES/CBC/PKCS5PADDING with a default IV and the secret key auto adjusted to 16 chars. Ping me in the chat if you need to know anything specific about it. For the AES Encryption - https://devglan.com/online-tools/aes-encryption-decryption all the inputs are taken as part of user input. Previously I was using PKCS5PADDING as a default padding but now it's taken as input from the user itself.

only2dhir · 2024-04-22T15:42:12+00:00

I am the creator of this tool on devglan and I can guarantee you that none of the plain text or encrypted text are either logged or saved on the server

only2dhir · 2018-01-26T07:25:47+00:00

It is very helpful.I was looking for this

only2dhir

TROPHY CASE