mcs/class/corlib/System.Security.Cryptography/AsymmetricSignatureDeformatter.cs

   1 //
   2 // System.Security.Cryptography AsymmetricSignatureDeformatter Class implementation
   3 //
   4 // Authors:
   5 //   Thomas Neidhart (tome@sbox.tugraz.at)
   6 //
   7
   8 using System;
   9 using System.Security;
  10
  11 namespace System.Security.Cryptography {
  12
  13         /// <summary>
  14         /// Abstract base class for all asymmetric signature deformatter.
  15         /// Available derived classes:
  16         /// DSASignatureDeformatter, RSAPKCS1SignatureDeformatter
  17         /// </summary>
  18         public abstract class AsymmetricSignatureDeformatter {
  19
  20                 /// <summary>
  21                 /// constructor, no idea why it is here (abstract class)  :-)
  22                 /// just for compatibility with MS
  23                 /// </summary>
  24                 public AsymmetricSignatureDeformatter () {}
  25
  26                 /// <summary>
  27                 /// Sets the hash algorithm used for verifying a signature
  28                 /// </summary>
  29                 public abstract void SetHashAlgorithm (string strName);
  30
  31                 /// <summary>
  32                 /// set the keypair
  33                 /// </summary>
  34                 public abstract void SetKey (AsymmetricAlgorithm key);
  35
  36                 /// <summary>
  37                 /// Verifies the given Signature
  38                 /// </summary>
  39                 public abstract bool VerifySignature (byte[] rgbHash, byte[] rgbSignature);
  40
  41                 /// <summary>
  42                 /// Verifies the given Signature with the given hash algorithm
  43                 /// </summary>
  44                 public virtual bool VerifySignature (HashAlgorithm hash, byte[] rgbSignature)
  45                 {
  46                         if (hash == null)
  47                                 throw new ArgumentNullException ("hash");
  48                         return VerifySignature (hash.Hash, rgbSignature);
  49                 }
  50
  51         } // AsymmetricSignatureDeformatter
  52
  53 } // System.Security.Cryptography
  54