void ComputeIccContext()
{
var issuerModulusLength = new BigInteger(issuerPrivateKey.Modulus, 16).BitLength / 8;
var iccPublicKey = certificateData.IccPrivateKey.GetPublicKey();
var iccModulusLength = new BigInteger(iccPublicKey.Modulus, 16).BitLength / 8;
var iccPublicKeyCertificate = new IccPublicKeyCertificate
{
HashAlgorithmIndicator = certificateData.HashAlgorithmIndicator.FromHexa().First(),
ApplicationPan = certificateData.ApplicationPan.FromHexa(),
CertificateExpirationDate = certificateData.ExpirationDate.FromHexa(),
CertificateSerialNumber = certificateData.SerialNumber.FromHexa(),
PublicKeyAlgorithmIndicator = certificateData.PublicKeyAlgorithmIndicator.FromHexa().First(),
IccPublicKey = iccPublicKey
};
IccContext = new EmvIccContext()
{
ApplicationPan = certificateData.ApplicationPan,
IccPrivateKey = certificateData.IccPrivateKey
};
// 9F46 ICC Public Key Certificate (Nca)
IccContext.IccPublicKeyCertificate = iccPublicKeyCertificate.GenerateCertificate(issuerPrivateKey.GetPrivateKey()).ToHexa();
// 9F48 ICC Public Key Remainder (Ni-Nca+42)
if (iccModulusLength > issuerModulusLength - 42)
{
IccContext.IccPublicKeyRemainder = iccPublicKey.Modulus.FromHexa().Skip(issuerModulusLength - 42).ToArray().ToHexa();
}
// 9F47 ICC Public Key Exponent (1 or 3)
IccContext.IccPrivateKey.PublicExponent = iccPublicKey.Exponent.FromHexa().ToHexa();
}
/// <summary>
/// Initializes a new instance.
/// </summary>
/// <param name="model">Card DGI model.</param>
/// <param name="data">Card data.</param>
/// <param name="issuerContext"></param>
/// <param name="iccContext"></param>
public DgiBuilder(EmvPersonalizationModel model, EmvPersonalizationData data, EmvIssuerContext issuerContext, EmvIccContext iccContext)
{
this.data = data;
this.model = model;
this.issuerContext = issuerContext;
this.iccContext = iccContext;
}