MD5 hash value

A number known as a message digest generated from a hash function. Also . See hash function. Producing hash values for accessing data or for security. A hash value (or simply hash), also called a message digest, is a number generated from a string of text. The hash is substantially smaller than the text itself, and is generated by a formula in such a way that it is extremely unlikely that some other text will produce the same hash value. Hashing is also a common method of accessing data records. To create an index, called a hash table, for these records, you would apply a formula to each name to produce a unique numeric value.
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A string of characters entered by a subject as an authentication factor. A word or string of characters that authenticates a user, a specific resource, or an access type. Protected/private string of letters, numbers, and special characters used to authenticate an identity or to authorize access to data.
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A number that is generated from a string of text and that is substantially smaller than the text itself. A formula creates a hash value in such a way that it is extremely unlikely any other text will produce the same hash value.
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A government standard hash function developed by the National Institute of Standards and Technology (NIST) and specified in an official government publication. SHA-1 creates a 160-bit hash value output. Members of the SHA-2 family create a range of hash value outputs: 224, 256, 384 or 512. SHA-3 was still in development at the time of this writing, but the Keccak algorithm has been selected for that emerging standard.
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The version of the MD algorithm released in 1991. MD5 processes 512-bit blocks of the message, using four distinct rounds of computation to produce a digest of the same length as the MD2 and MD4 algorithms (128 bits). Generally has been replaced by SHA-1 or other, more modern hashing algorithms.
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