internal static IntPtr ImportRsaPublicKey(byte[] rawData)
{
CryptoProvider provider = new CryptoProvider();
IntPtr nativeStructure = IntPtr.Zero;
int nativeStructureSize = 0;
try {
if (!Advapi32.CryptDecodeObjectEx(CertificateEncodingType.X509Asn,
InteropHelpers.GetWellKnownOIDPointer(InteropHelpers.WellKnownOIDs.X509PublicKeyInfo),
rawData, rawData.Length, Advapi32.EncodingFlags.AllocateMemory, IntPtr.Zero,
ref nativeStructure, ref nativeStructureSize))
{
throw new CryptographyException((WinErrors)(uint)Marshal.GetLastWin32Error());
}
IntPtr result = IntPtr.Zero;
if (!Crypt32.CryptImportPublicKeyInfo(provider.Handle, CertificateEncodingType.X509Asn,
nativeStructure, out result))
{
throw new CryptographyException((WinErrors)(uint)Marshal.GetLastWin32Error());
}
return(result);
}
finally {
if (IntPtr.Zero != nativeStructure)
{
if (IntPtr.Zero != Kernel32.LocalFree(nativeStructure))
{
throw new InteropException(Marshal.GetLastWin32Error());
}
}
provider.Dispose();
}
}
internal RSA(CryptoProvider crypto_provider)
{
_provider = crypto_provider;
}
internal Randomizer(CryptoProvider provider)
{
_provider = provider;
}
internal AES(CryptoProvider crypto_provider)
{
this._provider = crypto_provider;
this._key = IntPtr.Zero;
}
internal SHA1(CryptoProvider crypto_provider)
{
_provider = crypto_provider;
init();
}
internal SHA1(CryptoProvider crypto_provider, SHA1 other)
{
_provider = crypto_provider;
duplicate_internal(other);
}