mcs/class/Mono.Security/Mono.Math.Prime/ConfidenceFactor.cs

   1 //
   2 // Mono.Math.Prime.ConfidenceFactor.cs - Confidence factor for prime generation
   3 //
   4 // Authors:
   5 //      Ben Maurer
   6 //
   7 // Copyright (c) 2003 Ben Maurer. All rights reserved
   8 //
   9
  10 using System;
  11
  12 namespace Mono.Math.Prime {
  13         /// <summary>
  14         /// A factor of confidence.
  15         /// </summary>
  16 #if INSIDE_CORLIB
  17         internal
  18 #else
  19         public
  20 #endif
  21         enum ConfidenceFactor {
  22                 /// <summary>
  23                 /// Only suitable for development use, probability of failure may be greater than 1/2^20.
  24                 /// </summary>
  25                 ExtraLow,
  26                 /// <summary>
  27                 /// Suitable only for transactions which do not require forward secrecy.  Probability of failure about 1/2^40
  28                 /// </summary>
  29                 Low,
  30                 /// <summary>
  31                 /// Designed for production use. Probability of failure about 1/2^80.
  32                 /// </summary>
  33                 Medium,
  34                 /// <summary>
  35                 /// Suitable for sensitive data. Probability of failure about 1/2^160.
  36                 /// </summary>
  37                 High,
  38                 /// <summary>
  39                 /// Use only if you have lots of time! Probability of failure about 1/2^320.
  40                 /// </summary>
  41                 ExtraHigh,
  42                 /// <summary>
  43                 /// Only use methods which generate provable primes. Not yet implemented.
  44                 /// </summary>
  45                 Provable
  46         }
  47 }