blob: 2d0dfdbe5e1167f8d7a7ff4e908f8821e30cab06 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
//
// Mono.Math.Prime.Generator.PrimeGeneratorBase.cs - Abstract Prime Generator
//
// Authors:
// Ben Maurer
//
// Copyright (c) 2003 Ben Maurer. All rights reserved
//
using System;
namespace Mono.Math.Prime.Generator {
[CLSCompliant(false)]
internal abstract class PrimeGeneratorBase {
public virtual ConfidenceFactor Confidence {
get {
return ConfidenceFactor.Medium;
}
}
public virtual Prime.PrimalityTest PrimalityTest {
get {
return new Prime.PrimalityTest (PrimalityTests.SmallPrimeSppTest);
}
}
public virtual int TrialDivisionBounds {
get { return 4000; }
}
/// <summary>
/// Performs primality tests on bi, assumes trial division has been done.
/// </summary>
/// <param name="bi">A BigInteger that has been subjected to and passed trial division</param>
/// <returns>False if bi is composite, true if it may be prime.</returns>
/// <remarks>The speed of this method is dependent on Confidence</remarks>
protected bool PostTrialDivisionTests (BigInteger bi)
{
return PrimalityTest (bi, this.Confidence);
}
public abstract BigInteger GenerateNewPrime (int bits);
}
}
|
