I tried to find out how to calculate the error detection capabilities of arbitrary CRC polynomials. I know that there are various error detection capabilities that may (or may not) apply to an arb...

I'm researching the possibility of automated on-page error detection via Javascript. I have found several questions where the answer allows you to catch Javascript compilation and runtime errors gl...

Non-cryptographic hashes such as MurmurHash3 and xxHash are almost exclusively designed for hash tables, but they appear to function comparably (and even favorably) to CRC-32, Adler-32 and Fletcher...

From the 4B/5B encoding scheme dataward 0000 in encoded to 11110 codeword similarly 0001 is encoded to 01001 etc. Here the result of XOR operation between two codewords will be another valid c...

Once again I was in a design review, and encountered the claim that the probability of a particular scenario was "less than the risk of cosmic rays" affecting the program, and it occurred to me tha...

I have an old, no longer manufactured electronic device with a serial port. I am trying to reverse engineer the data packet CRC/checksum/hash used in this device. Anyone with keen eyes, sharp math...

Most available desktop (cheap) x86 platforms now still nave no ECC memory support (Error Checking & Correction). But the rate of memory bit-flip errors is still growing (not the best SO thread,...

A question asks: find the hamming distance of the following code: 11111 10101 01010 11100 00011 11001 The answer is 2. How does this work? I thought hamming distance is only between two st...

Performance and security considerations aside, and assuming a hash function with a perfect avalanche effect, which should I use for checksumming blocks of data: CRC32 or hash truncated to N bytes? ...

The the other day I ran into the question GZipStream doesn't detect corrupt data (even CRC32 passes)? (Of which this might very well be a "duplicate", I have mixed feelings on the subject. I wa...

I have a hypothetical situation of sending data units, each of a thousand bytes. Failure rate is rare but when a error does occur it is less likely to be a single bit error and more likely to be an...

I have a PHP script that sends critical e-mails. I know how to check whether the e-mail was sent successfully. However, is there a way to verify whether the e-mail reached its destination?

I'm wondering what good ways there would be make assertions about synchronization or something so that I could detect synchronization violations (while testing). That would be used for example for...