private void ThrowIfDisposed()
{
SecKeyPair?current = _keys;
if (current != null && current.PublicKey == null)
{
throw new ObjectDisposedException(nameof(RSA));
}
}
private void SetKey(SecKeyPair keyPair)
{
ThrowIfDisposed();
SecKeyPair?current = _keys;
_keys = keyPair;
current?.Dispose();
}
internal SecKeyPair GetOrGenerateKeys(int keySizeInBits)
{
ThrowIfDisposed();
SecKeyPair?current = _keys;
if (current != null)
{
return(current);
}
return(GenerateKey(keySizeInBits));
}
private void SetKey(SecKeyPair newKeyPair)
{
ThrowIfDisposed();
SecKeyPair?current = _keys;
_keys = newKeyPair;
current?.Dispose();
if (newKeyPair != null)
{
KeySizeValue = Interop.AppleCrypto.GetSimpleKeySizeInBits(newKeyPair.PublicKey);
}
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
if (_keys != null)
{
_keys.Dispose();
_keys = null;
}
_disposed = true;
}
base.Dispose(disposing);
}
internal SecKeyPair GetKeys()
{
ThrowIfDisposed();
SecKeyPair?current = _keys;
if (current != null)
{
return(current);
}
// macOS 10.11 and macOS 10.12 declare DSA invalid for key generation.
// Rather than write code which might or might not work, returning
// (OSStatus)-4 (errSecUnimplemented), just make the exception occur here.
//
// When the native code can be verified, then it can be added.
throw new PlatformNotSupportedException(SR.Cryptography_DSA_KeyGenNotSupported);
}
internal SecKeyPair GetKeys()
{
ThrowIfDisposed();
SecKeyPair?current = _keys;
if (current != null)
{
return(current);
}
SafeSecKeyRefHandle publicKey;
SafeSecKeyRefHandle privateKey;
Interop.AppleCrypto.RsaGenerateKey(KeySizeValue, out publicKey, out privateKey);
current = SecKeyPair.PublicPrivatePair(publicKey, privateKey);
_keys = current;
return(current);
}
internal void DisposeKey()
{
_keys?.Dispose();
_keys = null;
}
