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<Type Name="DSASignatureFormatter" FullName="System.Security.Cryptography.DSASignatureFormatter">
<TypeSignature Maintainer="auto" Language="C#" Value="public class DSASignatureFormatter : System.Security.Cryptography.AsymmetricSignatureFormatter" />
<AssemblyInfo>
<AssemblyName>mscorlib</AssemblyName>
<AssemblyPublicKey>[00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00]</AssemblyPublicKey>
<AssemblyVersion>1.0.5000.0</AssemblyVersion>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ThreadSafetyStatement>Gtk# is thread aware, but not thread safe; See the <link location="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details.</ThreadSafetyStatement>
<Base>
<BaseTypeName>System.Security.Cryptography.AsymmetricSignatureFormatter</BaseTypeName>
</Base>
<Interfaces />
<Docs>
<summary>Signature generation using the DSA algorithm.</summary>
<remarks>You are encouraged to use this class for generating all DSA signatures to ensure code portability with all DSA implementation. Some DSA implementations, like <see cref="T:System.Security.Cryptography.DSACryptoServiceProvider" />, provides some helper methods but these methods will limit your code to use this specific class.</remarks>
</Docs>
<Members>
<Member MemberName=".ctor">
<MemberSignature Language="C#" Value="public DSASignatureFormatter ();" />
<MemberType>Constructor</MemberType>
<ReturnValue />
<Parameters />
<Docs>
<summary>Create a new instance of the class.</summary>
<remarks>To be added</remarks>
</Docs>
<AssemblyInfo>
<AssemblyVersion>1.0.5000.0</AssemblyVersion>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
</AssemblyInfo>
</Member>
<Member MemberName=".ctor">
<MemberSignature Language="C#" Value="public DSASignatureFormatter (System.Security.Cryptography.AsymmetricAlgorithm key);" />
<MemberType>Constructor</MemberType>
<ReturnValue />
<Parameters>
<Parameter Name="key" Type="System.Security.Cryptography.AsymmetricAlgorithm" />
</Parameters>
<Docs>
<param name="key">An instance of a <see cref="T:System.Security.Cryptography.DSA" /> object. Instance derived from other <see cref="T:System.Security.Cryptography.AsymmetricAlgorithm" /> classes are ignored.</param>
<summary>Create a new instance of the class with the specified asymmetric key.</summary>
<remarks>Using this constructor is equivalent to the following code:
<example><code lang="C#">
DSASignatureFormatter f = new DSASignatureFormatter ();
f.SetKey (dsa);
</code></example></remarks>
</Docs>
<AssemblyInfo>
<AssemblyVersion>1.0.5000.0</AssemblyVersion>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
</AssemblyInfo>
</Member>
<Member MemberName="CreateSignature">
<MemberSignature Language="C#" Value="public override byte[] CreateSignature (byte[] rgbHash);" />
<MemberType>Method</MemberType>
<ReturnValue>
<ReturnType>System.Byte[]</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="rgbHash" Type="System.Byte[]" />
</Parameters>
<Docs>
<param name="rgbHash">The hash to be signed. </param>
<summary>Compute the signature for the specified hash value using the DSA private key.</summary>
<returns>The signature is returned in a 40 bytes array.</returns>
<remarks>
<para>
A <see cref="T:System.Security.Cryptography.CryptographicUnexpectedOperationException" /> will be thrown if a <see cref="T:System.Security.Cryptography.DSA" /> object instance hasn't been set in the constructor or by <see cref="M:System.Security.Cryptography.DSASignatureFormatter.SetKey" />.
</para>
<para>
The hash byte array should always have 20 bytes as only the SHA-1 algorithm is supported.
</para>
<para>
The size of the signature, 40 bytes, isn't affected by the length of the public key (512 - 1024 bits).
</para>
</remarks>
</Docs>
<AssemblyInfo>
<AssemblyVersion>1.0.5000.0</AssemblyVersion>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
</AssemblyInfo>
</Member>
<Member MemberName="SetHashAlgorithm">
<MemberSignature Language="C#" Value="public override void SetHashAlgorithm (string strName);" />
<MemberType>Method</MemberType>
<ReturnValue>
<ReturnType>System.Void</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="strName" Type="System.String" />
</Parameters>
<Docs>
<param name="strName">Name of the hash algorithm. This name will be resolved by <see cref="T:System.Security.Cryptography.CryptoConfig" /> to create an instance of the class.</param>
<summary>Set the hash algorithm to be used to compute the digital signature. For DSA the default (and only acceptable) hash algorithm is SHA-1.</summary>
<remarks>
<para>
This class only support the <see cref="T:System.Security.Cryptography.SHA1" /> hash algorithm. Any name that resolves in another hash algorithm (or anything else) will throw a <see cref="T:System.Security.Cryptography.CryptographicUnexpectedOperationException" />. This is a restriction of the DSA algorithm (FIPS 186) not of the class library.
</para>
</remarks>
</Docs>
<AssemblyInfo>
<AssemblyVersion>1.0.5000.0</AssemblyVersion>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
</AssemblyInfo>
</Member>
<Member MemberName="SetKey">
<MemberSignature Language="C#" Value="public override void SetKey (System.Security.Cryptography.AsymmetricAlgorithm key);" />
<MemberType>Method</MemberType>
<ReturnValue>
<ReturnType>System.Void</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="key" Type="System.Security.Cryptography.AsymmetricAlgorithm" />
</Parameters>
<Docs>
<param name="key">An instance of a <see cref="T:System.Security.Cryptography.DSA" /> object. Instance derived from other <see cref="T:System.Security.Cryptography.AsymmetricAlgorithm" /> classes are ignored.</param>
<summary>Set the key pair to be used to compute signatures.</summary>
<remarks>
<see cref="M:System.Security.Cryptography.DSASignatureFormatter.CreateSignature" /> will only be successful if the key object has it's private key available. </remarks>
</Docs>
<AssemblyInfo>
<AssemblyVersion>1.0.5000.0</AssemblyVersion>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
</AssemblyInfo>
</Member>
</Members>
<Attributes>
<Attribute>
<AttributeName>System.Runtime.InteropServices.ComVisible(true)</AttributeName>
</Attribute>
</Attributes>
</Type>
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