MD5
Noun
Meaning
MD5 (plural MD5s)
(cryptography) Initialism of Message Digest 5, a cryptographic hash function.
Examples
A few days later, Vlastimil Klima described an improved algorithm, able to construct MD5 collisions in a few hours on a single notebook computer.
Blocksize is 64 (bytes) when using one of the following hash functions: SHA-1, MD5, RIPEMD-128/160.
For example, MD5 and SHA-1 operate on 512-bit blocks.
Algorithm Figure 1. One MD5 operation.
As of 2015, MD5 was demonstrated to be still quite widely used, most notably by security research and antivirus companies. citation Overview of security issues In 1996 a flaw was found in the design of MD5.
For example, file servers often provide a pre-computed MD5 (known as md5sum ) checksum for the files, so that a user can compare the checksum of the downloaded file to it.