| Subject | English | Thesaurus |
| IT | message digest algorithm | Message digest algorithms are SHA1, MD2, MD4 and MD5. These algorithms are one-way functions unlike private and public key encryption algorithms. (All digest algorithms take a message of arbitrary length and produce a 128-bit message digest) |
| abbr., cryptogr. | Message Digest Algorithm | MD4 (see also SHA Vosoni) |
| sec.sys., abbr. | Message Digest Cipher | MDC |
| comp., abbr. | Message Digest Code | MDC |