Import() [6/6]

static CngKey System.Security.Cryptography.CngKey.Import ( ReadOnlySpan< byte > keyBlob, string curveName, CngKeyBlobFormat format, CngProvider provider )

inlinestaticpackage

Definition at line 593 of file CngKey.cs.

    {
        if (format == null)
        {
            throw new ArgumentNullException("format");
        }
        if (provider == null)
        {
            throw new ArgumentNullException("provider");
        }
        SafeNCryptProviderHandle safeNCryptProviderHandle = provider.OpenStorageProvider();
        SafeNCryptKeyHandle phKey = null;
        if (curveName == null)
        {
            global::Interop.NCrypt.ErrorCode errorCode = global::Interop.NCrypt.NCryptImportKey(safeNCryptProviderHandle, IntPtr.Zero, format.Format, IntPtr.Zero, out phKey, ref MemoryMarshal.GetReference(keyBlob), keyBlob.Length, 0);
            if (errorCode != 0)
            {
                throw errorCode.ToCryptographicException();
            }
        }
        else
        {
            phKey = System.Security.Cryptography.ECCng.ImportKeyBlob(format.Format, keyBlob, curveName, safeNCryptProviderHandle);
        }
        CngKey cngKey = new CngKey(safeNCryptProviderHandle, phKey);
        cngKey.IsEphemeral = format != CngKeyBlobFormat.OpaqueTransportBlob;
        return cngKey;
    }

References System.Security.Cryptography.CngKey.CngKey(), System.format, System.Security.Cryptography.ECCng.ImportKeyBlob(), System.ReadOnlySpan< T >.Length, System.Security.Cryptography.CngKeyBlobFormat.OpaqueTransportBlob, and System.IntPtr.Zero.