/// <summary>
/// Зашифровать идентификатор OID параметров шифрования.
/// </summary>
public static byte[] EncodeEncryptionParamSet(string encryptionParamSet)
{
if (encryptionParamSet == null)
{
throw ExceptionUtility.ArgumentNull(nameof(encryptionParamSet));
}
byte[] data;
try
{
var parameters = new Gost_28147_89_BlobParams {
EncryptionParamSet = Gost_28147_89_ParamSet.FromString(encryptionParamSet)
};
var asnEncoder = new Asn1BerEncodeBuffer();
parameters.Encode(asnEncoder);
data = asnEncoder.MsgCopy;
}
catch (Exception exception)
{
throw ExceptionUtility.CryptographicException(exception, Resources.Asn1EncodeError, nameof(Gost_28147_89_BlobParams));
}
return(data);
}
/// <summary>
/// Расшифровать идентификатор OID параметров шифрования.
/// </summary>
public static string DecodeEncryptionParamSet(byte[] data)
{
if (data == null)
{
throw ExceptionUtility.ArgumentNull(nameof(data));
}
string encryptionParamSet;
try
{
var asnDecoder = new Asn1BerDecodeBuffer(data);
var parameters = new Gost_28147_89_BlobParams();
parameters.Decode(asnDecoder);
encryptionParamSet = parameters.EncryptionParamSet.Oid.Value;
}
catch (Exception exception)
{
throw ExceptionUtility.CryptographicException(exception, Resources.Asn1DecodeError, typeof(Gost_28147_89_BlobParams).FullName);
}
return(encryptionParamSet);
}