public byte[] ComputeHash(byte[] data)
{
using (var facade = new GostCryptFacade(ProviderParams))
{
facade.AcquireContext(null, Constants.CryptVerifycontext);
using (HashContext hashContext = facade.CreateHash(null, 0))
{
hashContext.AddData(data, 0);
return(hashContext.GetValue());
}
}
}
/// <summary>
/// Подсчет хэша.
/// </summary>
/// <param name="data">Данные.</param>
/// <returns>Хэш.</returns>
public static byte[] ComputeHash(byte[] data)
{
using (var container = new KeyContainer())
{
container.AcquireContext(null, ProviderName, ProviderType, Constants.CryptVerifycontext);
using (HashContext hashContext = container.CreateHash(null, Constants.CpcspHashId, 0))
{
hashContext.AddData(data, 0);
return(hashContext.GetValue());
}
}
}
/// <summary>
/// Проверка подписи.
/// </summary>
/// <param name="signature">Подпись.</param>
/// <param name="data">Данные.</param>
/// <param name="certificateData">Сертификат.</param>
/// <returns>True - провека прошла успешно, иначе False.</returns>
public static bool VerifyCertificate(byte[] signature, byte[] data, byte[] certificateData)
{
using (var container = new KeyContainer())
{
container.AcquireContext(null, ProviderName, ProviderType, Constants.CryptVerifycontext);
using (KeyContext keyContext = container.ImportSertificate(certificateData))
{
using (HashContext hashContext =
container.CreateHash(null, Constants.CpcspHashId, 0))
{
hashContext.AddData(data, 0);
return(keyContext.VerifySignature(signature, hashContext, 0));
}
}
}
}
public bool VerifyCertificate(
byte[] signature,
byte[] data,
byte[] certificateData)
{
using (var facade = new GostCryptFacade(ProviderParams))
{
facade.AcquireContext(null, Constants.CryptVerifycontext);
using (KeyContext keyContext = facade.ImportSertificate(certificateData))
{
using (HashContext hashContext = facade.CreateHash(null, 0))
{
hashContext.AddData(data, 0);
return(keyContext.VerifySignature(signature, hashContext, 0));
}
}
}
}
public bool VerifySignature(
byte[] signature,
byte[] data,
byte[] publicKey)
{
using (var facade = new InfotecsFacade(ProviderParams))
{
facade.AcquireContext(null, Constants.CryptVerifycontext);
using (KeyContext keyContext = facade.ImportKey(null, publicKey, 0))
{
using (HashContext hashContext = facade.CreateHash(null, 0))
{
hashContext.AddData(data, 0);
return(keyContext.VerifySignature(signature, hashContext, 0));
}
}
}
}