The glossary below contains many of the terms you will find in common use throughout the Symantec Security Response website. Please refer to this list to find definitions of terms and answers to other Internet security-related questions.

MD5 hash

RSA Data Security, Inc. MD5 Message-Digest Algorithm: A one-way function that produces a unique 128-bit value. MD5 hashing transforms information and produces a value that it cannot be changed back into its original form. This method is used for encrypted authentication (for example, verifying passwords or authenticating applications).