System.Configuration.Assemblies.AssemblyHashAlgorithm Enumeration

Summary

Specifies all the hash algorithms used for hashing files and for generating the strong name.

C# Syntax:

[Serializable] public enum AssemblyHashAlgorithm

A hash functionH is a transformation that takes an input m and returns a fixed-size string, which is called the hash value h (that is, h = H (m)). Hash functions with just this property have a variety of general computational uses, but when employed in cryptography, the hash functions are usually chosen to have some additional properties.

The basic requirements for a cryptographic hash function are:

• The input can be of any length.
• The output has a fixed length.
• H (x) is relatively easy to compute for any given x.
• H (x) is one-way.
• H (x) is collision-free.

The hash value represents concisely the longer message or document from which it was computed; this value is called the message digest. You can think of a message digest as a digital fingerprint of the larger document. Examples of well-known hash functions are MD2 and and SHA.

System.Configuration.Assemblies Namespace

System.Configuration.Assemblies.AssemblyHashAlgorithm Member List:

Public Fields

MD5	Retrieves the MD5 message-digest algorithm. MD5 was developed by Rivest in 1991. It is basically MD4 with safety-belts and while it is slightly slower than MD4, it is more secure. The algorithm consists of four distinct rounds, which has a slightly different design from that of MD4. Message-digest size, as well as padding requirements, remain the same.
None	A mask indicating that there is no hash algorithm. If you specify None for a multi-module assembly, the common language runtime defaults to the SHA1 algorithm, since multi-module assemblies need to generate a hash.
SHA1	A mask used to retrieve a revision of the Secure Hash Algorithm that corrects an unpublished flaw in SHA.

Hierarchy:

• System.Object
• System.ValueType
• System.Enum
• System.Configuration.Assemblies.AssemblyHashAlgorithm

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