Odd parity
Odd parity
Odd parity definition
Odd parity refers to an error detection method where an extra bit, or a parity bit, is added to each data unit. In an odd parity, the total value of the 1s in a data unit is always an odd number.
Benefits of odd parity checking
- Simplicity. Odd parity checks are simple and don’t use much computation.
- Low costs. Odd parity checks are inexpensive because they only need a small bit added to each data unit.
- Accuracy. Odd parity checks verify transmission accuracy.
- Improved security. Odd parity checks provide an additional security layer and help prevent cyberattacks.
- Enhancements. Advanced error detection methods like a cyclic redundancy check and forward error correction can improve parity checks.
Drawbacks of an odd parity check
- Limited error detection. Odd parity checks are limited in detecting only the code errors that affect the parity number.
- Limited detection. Odd parity checks can determine inconsistencies but cannot show where they are.
- False errors. Odd parity checks can sometimes end up showing a false result.
- Security can be bypassed. Odd parity checks are not hard to bypass.