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using System;
using System.Collections.Generic;
using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.Nist;
using Org.BouncyCastle.Utilities.Collections;
namespace Org.BouncyCastle.Pqc.Crypto.Lms
{
public sealed class LMOtsParameters
{
// TODO add all parameter sets
//public static int reserved = 0;
public static LMOtsParameters sha256_n32_w1 = new LMOtsParameters(1, 32, 1, 265, 7, 8516, NistObjectIdentifiers.IdSha256);
public static LMOtsParameters sha256_n32_w2 = new LMOtsParameters(2, 32, 2, 133, 6, 4292, NistObjectIdentifiers.IdSha256);
public static LMOtsParameters sha256_n32_w4 = new LMOtsParameters(3, 32, 4, 67, 4, 2180, NistObjectIdentifiers.IdSha256);
public static LMOtsParameters sha256_n32_w8 = new LMOtsParameters(4, 32, 8, 34, 0, 1124, NistObjectIdentifiers.IdSha256);
private static Dictionary<object, LMOtsParameters> Suppliers = new Dictionary<object, LMOtsParameters>
{
{ sha256_n32_w1.ID, sha256_n32_w1 },
{ sha256_n32_w2.ID, sha256_n32_w2 },
{ sha256_n32_w4.ID, sha256_n32_w4 },
{ sha256_n32_w8.ID, sha256_n32_w8 }
};
private readonly int m_id;
private readonly int m_n;
private readonly int m_w;
private readonly int m_p;
private readonly int m_ls;
private readonly uint m_sigLen;
private readonly DerObjectIdentifier m_digestOid;
internal LMOtsParameters(int id, int n, int w, int p, int ls, uint sigLen, DerObjectIdentifier digestOid)
{
m_id = id;
m_n = n;
m_w = w;
m_p = p;
m_ls = ls;
m_sigLen = sigLen;
m_digestOid = digestOid;
}
public int ID => m_id;
public int N => m_n;
public int W => m_w;
public int P => m_p;
public int Ls => m_ls;
public int SigLen => Convert.ToInt32(m_sigLen);
public DerObjectIdentifier DigestOid => m_digestOid;
public static LMOtsParameters GetParametersByID(int id)
{
return CollectionUtilities.GetValueOrNull(Suppliers, id);
}
}
}
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