/// <summary>
/// Decrypts supplied buffer using xsalsa20_poly1305 algorithm, using supplied key and nonce to perform decryption.
/// </summary>
/// <param name="source">Buffer to decrypt from.</param>
/// <param name="target">Decrypted message buffer.</param>
/// <param name="key">Key to use for decryption.</param>
/// <param name="nonce">Nonce to use for decryption.</param>
/// <returns>Decryption status.</returns>
// Token: 0x0600014D RID: 333 RVA: 0x0000456C File Offset: 0x0000276C
public unsafe static int Decrypt(ReadOnlySpan <byte> source, Span <byte> target, ReadOnlySpan <byte> key, ReadOnlySpan <byte> nonce)
{
int result;
fixed(byte *pinnableReference = source.GetPinnableReference())
{
byte *encryptedMessage = pinnableReference;
fixed(byte *pinnableReference2 = target.GetPinnableReference())
{
byte *buffer = pinnableReference2;
fixed(byte *pinnableReference3 = key.GetPinnableReference())
{
byte *key2 = pinnableReference3;
fixed(byte *pinnableReference4 = nonce.GetPinnableReference())
{
byte *nonce2 = pinnableReference4;
result = Interop._SodiumSecretBoxOpen(buffer, encryptedMessage, (ulong)((long)source.Length), nonce2, key2);
}
}
}
}
return(result);
}
