/// <inheritdoc/>
public ICryptographicKey ImportKeyPair(byte[] keyBlob, CryptographicPrivateKeyBlobType blobType = CryptographicPrivateKeyBlobType.Pkcs8RawPrivateKeyInfo)
{
Requires.NotNull(keyBlob, "keyBlob");
var parameters = KeyFormatter.GetFormatter(blobType)
.Read(keyBlob)
.ComputeFullPrivateKeyData();
if (!CapiKeyFormatter.IsCapiCompatible(parameters))
{
// Try to make it CAPI compatible since it's faster on desktop,
// and the only thing that could possibly work on wp8.
RSAParameters adjustedParameters = KeyFormatter.NegotiateSizes(parameters);
if (CapiKeyFormatter.IsCapiCompatible(adjustedParameters))
{
parameters = adjustedParameters;
}
}
Platform.RSA rsa;
if (CapiKeyFormatter.IsCapiCompatible(parameters))
{
rsa = new Platform.RSACryptoServiceProvider();
}
else
{
#if DESKTOP
rsa = new RSAManaged();
#else
// Throw the exception explaining the problem.
CapiKeyFormatter.VerifyCapiCompatibleParameters(parameters);
// Make it obvious to the compiler that the buck stops here.
// er... on the line above.
throw new NotSupportedException();
#endif
}
rsa.ImportParameters(KeyFormatter.ToPlatformParameters(parameters));
return(new RsaCryptographicKey(rsa, this.algorithm));
}