Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [ecc]

Error Correcting Code; used to correct some small error in data by storing it redundantly (or, Elliptic Curve Cryptography).

In an electrical enginnering context, ECC means Error Correcting Code; this technique is use to correct some small error in data (transmitted, or stored in memory) by storing it redundantly.

ECC can also mean Elliptic Curve Cryptography, a family of asymmetric cryptographic techniques for signature, key exchange, and encryption, characterized by small keys and cryptograms, and fast execution of the private key operation.

Note: by now (March 2016), uses of this tag are split 1/1 between the two different meanings.

7 questions
7
votes
2 answers

Why have apparent memory bitflips in non-ECC memory not increased?

Back in the early 2000s I remember asking about why it was so important that servers use ECC memory. The prevailing wisdom at the time was that systems with lots of RAM would be, statistically, more likely to suffer bitflips. This makes sense - if…
Polynomial
  • 10,562
  • 5
  • 47
  • 88
5
votes
3 answers

Is ECC feature in DDR realized with using Hamming code technique?

The fundamental formula for a Hamming coding is as below: 2^k≥n+k+1 Where k = # of parity bits and n = data bits In a DDR system with ECC feature, every data byte will generate an additional ECC bit which makes a byte data 9 bits long. However, if…
Learner
  • 175
  • 11
3
votes
2 answers

Encrypting/Decrypting messages with Elliptic Curves in Arduino

Is there any possibility to encrypt/decrypt messages using only Elliptic Curves Algorithms? I found this library ECC Arduino library but it only generates numbers, there is no function for encrypting/decrypting. I am thinking, maybe it is not…
just_learning
  • 163
  • 8
0
votes
0 answers

Why does sionna use the code rate to convert from noise on a bit to noise on a symbol?

TL;DR: Why does sionna.utils.ebnodb2no take the code rate as input? Long version: sionna is a library for simulating communication channels, including noise simulation and error correction. I want to fully understand all steps in sionna >…
Daniel S.
  • 101
  • 2
0
votes
3 answers

How to calculate Bit Error Rate of an electronic equipment with several parts?

I am currently studying integrity of data into electronic systems facing Single Event Effects. I am focusing on data integrity inside an electronic equipment. I've been through a lot of papers providing methods on how to evaluate Bit Error Rate /…
lordlothard
  • 13
  • 5
0
votes
1 answer

DDR3 ECC 16gb 2rx4 PC3-14900r - Identification of the damaged chip by memory address

I got 4 16GB 2Rx4 PC3-14900R memory chips; Samsung M393B2G70DB0-CMA Out of 4 memory sticks, 1 OK, 2 report ECC errors (correctable - 1bit), 1 dead. I would like to replace the damaged chips. There are 36 of memory chips on a memory stick and I…
Andrzej Porębski
  • 1
  • 1
0
votes
1 answer

crypto benchmarks STM32L4

Can someone give me an indication on the performance (time) of ECDH executed on the STM32F4 board. The STM32F4 has hardware acceleration for ECC (http://www.st.com/st-web-ui/static/active/cn/resource/technical/document/user_manual/CD00208802.pdf)…
Timothy
  • 3
  • 2