Cryptography I created a graphical representation of a linear cryptanalysis of the AES S-box versus a random S-box |
- I created a graphical representation of a linear cryptanalysis of the AES S-box versus a random S-box
- My Cryptography Desktop App
- Is LMDPL method against DPA attacks (LUT-Masked Dual-rail with Precharge Logic) patented?
- First official Debian Ubuntu Release of GoldBug Crypto Chat 3.6
- Trying to recall something Dan Boneh Mentioned in a lecture about latest crypto research...
| Posted: 02 Jan 2018 06:30 PM PST I know very little about cryptography, but I wrote a program for a computer security project that creates a graphical representation a linear cryptanalysis of the AES S-box, and I thought that you guys might be interested in the result. I wrote three programs. The first one derives the AES S-box. The AES S-box is derived using the irreducible polynomial x8 + x4 + x3 + x + 1 (0x11b) followed by an affine transformation. The program is also able to generate other S-boxes that have equivalent resistance to the AES S-box by using other degree 8 irreducible polynomials. The second program simply generates a random S-box that is the same size as the AES S-box. The third program performs the linear cryptanalysis and writes the results to a file in a portable greymap (.pgm) format. Here is a picture that shows a side-by-side comparison of the results, and I'll explain the image below: Picture The AES S-box is on the left. The random S-box is on the right. Each pixel represents an equation that is potentially descriptive of the subkey that was used. The optimal outcome is having these equations be as close to 50:50 as possible. Black pixels represent equations that have no deviation from 50% probability (strongest resistance). Lighter shades means larger deviation from 50% probability (weaker resistance). The mathematical structure of the AES S-box is clear from this image in comparison to the random S-box. [link] [comments]  |
| Posted: 02 Jan 2018 09:13 AM PST |
| Is LMDPL method against DPA attacks (LUT-Masked Dual-rail with Precharge Logic) patented? Posted: 02 Jan 2018 10:11 PM PST There are mainly two methods against DPA attacks. First one is algorithmic masking that includes changes in crypto algorithms. For example new S-Box design in AES. The other one is gate level masking. Are these methods have licensed or patented? Is there any other company than Rambus that designs DPA resistant AES IP Cores? [link] [comments]  |
| First official Debian Ubuntu Release of GoldBug Crypto Chat 3.6 Posted: 02 Jan 2018 11:19 AM PST |
| Trying to recall something Dan Boneh Mentioned in a lecture about latest crypto research... Posted: 02 Jan 2018 06:45 AM PST I was watching a Dan Boneh video and he mentioned a theoretical crypto scheme involving being able to send google an encrypted question and google returns the correct answer without ever knowing the question...does anyone know what area of research he may have been talking about? [link] [comments]  |
| You are subscribed to email updates from Cryptography news and discussions. To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google, 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States | |
No comments:
Post a Comment