public AgreementKdfBuilder WithPrf(FipsPrfAlgorithm prf)
{
return(new AgreementKdfBuilder(algorithm, prf, iv));
}
/// <summary>
/// Construct a KDF using the given PRF to process the agreed value with. The outputSize parameter determines how many bytes
/// will be generated.
/// </summary>
/// <param name="kdfBuilder">KDF algorithm builder to use for parameter creation.</param>
/// <param name="prf">The PRF to use in the KDF.</param>
/// <param name="iv">The iv parameter for KDF initialization.</param>
/// <param name="outputSize">The size of the output to be generated from the KDF.</param>
public FipsKdfKmg(FipsKdf.AgreementKdfBuilderService kdfBuilder, FipsPrfAlgorithm prf, byte[] iv, int outputSize)
{
this.kdfBuilder = CryptoServicesRegistrar.CreateService(kdfBuilder).WithPrf(prf);
this.iv = Arrays.Clone(iv);
this.outputSize = outputSize;
}
internal AgreementKdfBuilder(FipsAlgorithm algorithm, FipsPrfAlgorithm prf, byte[] iv)
{
this.algorithm = algorithm;
this.prf = prf;
this.iv = iv;
}
internal FipsKdfAlgorithm(FipsKdfAlgorithm kdfAlg, FipsPrfAlgorithm prfAlgorithm) : base((FipsAlgorithm)kdfAlg.Kdf, prfAlgorithm)
{
}
internal FipsKdfAlgorithm(FipsAlgorithm kdfAlgorithm, FipsPrfAlgorithm prfAlgorithm) : base(kdfAlgorithm, prfAlgorithm)
{
}
/// <summary>
/// Contruct a PRF algorithm and salt to process the Z value with (as in SP 800-56C)
/// </summary>
/// <param name="prfAlgorithm">PRF represent the HMAC algorithm to use.</param>
/// <param name="salt">The salt to use to initialise the PRF</param>
public FipsPrfKmg(FipsPrfAlgorithm prfAlgorithm, byte[] salt)
{
this.prfAlgorithm = prfAlgorithm;
this.salt = Arrays.Clone(salt);
}
public FipsPrfKmg(FipsPrfAlgorithm prfAlgorithm) : this(prfAlgorithm, null)
{
}
