Missing Bytes After Encrypt and Decrypt Large files

[jhkuan1989]

Not too sure if anyone have experience this, I've tried to test if the PGP works on large files using the settings below.

        using (PGP pgp = new PGP()
        {
            CompressionAlgorithm = Org.BouncyCastle.Bcpg.CompressionAlgorithmTag.Uncompressed,
            SymmetricKeyAlgorithm = Org.BouncyCastle.Bcpg.SymmetricKeyAlgorithmTag.Aes256,
            PublicKeyAlgorithm = Org.BouncyCastle.Bcpg.PublicKeyAlgorithmTag.RsaSign,
            HashAlgorithmTag = Org.BouncyCastle.Bcpg.HashAlgorithmTag.Sha512,
            FileType = PGPFileType.Binary,
            PgpSignatureType = PgpSignature.BinaryDocument
        })

So far for smaller files (<1GB) I'm getting exactly same size after the encrypt and decrypt process. but for 1 of my sql server db backup that is sized at 6GB, there's a 53KB mismatched, and resulting in a corrupted file.

[mattosaurus]

Strange, I haven't experienced that before. I don't suppose you're able to open the file and see if there's anything obviously wrong with it (missing characters from the end maybe)?

I don't have any 6GB SQL backups available but I'll see if I can replicate this with a txt file.

[jhkuan1989]

yeap, did a quick check using large text file editor. Indeed it was truncated from the end.

left being the original, right being the decrypted

I've also tried simply zipping a random folder in my harddisk with size 5gb+, also having missing bytes.

[mattosaurus]

Ok, thanks for checking. It sounds like it's probably closing the stream before it's flushed so is leaving off the end so I'll have a look into that.

Can you confirm that the issue is with the latest v2.4.0 version of the library?

[mattosaurus]

This was an issue with the encryption method not writing all bytes for large files. I've fixed it now and have published v2.4.1.