How can I decrypt PGP_sym_decrypt (PostgreSql) text in C#?

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To decrypt PGPsymdecrypt encrypted text in C#, you can use the PgpCore library. Here's an example of how to do it:

1. Install the PgpCore library using NuGet package manager.

2. Import the following namespaces:

using System.IO;
using PgpCore;

1. Create an instance of the PgpCore library and load your private key:

PgpCore.DecryptionKeys decryptionKeys = new PgpCore.DecryptionKeys(File.OpenRead(@"path\to\private\key.asc"), "password");

1. Convert the encrypted text to bytes:

byte[] encryptedData = Convert.FromBase64String(encryptedText);

1. Decrypt the data:

using (MemoryStream decryptedStream = new MemoryStream())
{
    using (MemoryStream encryptedStream = new MemoryStream(encryptedData))
    {
        PgpCore.PGP pgp = new PgpCore.PGP();
        pgp.DecryptStream(encryptedStream, decryptedStream, decryptionKeys);
    }

    string decryptedText = Encoding.UTF8.GetString(decryptedStream.ToArray());
}

Note: The decryptedText variable will contain the decrypted text.

Also, make sure to replace path\to\private\key.asc and password with your actual private key path and password.