Re: Adding & checking MDC using high-level org.bouncycastle.openpgp

Hi!

I use BcPGPDataEncryptorBuilder.setWithIntegrityPacket(true);
for that purpose :)

Am 25. August 2018 18:15:49 MESZ schrieb Mike Burke <[email protected]>:
>I'm doing symmetric AES256 PGP encryption using
>org.bouncycastle.openpgp.PGPEncryptedDataGenerator and friends.  I am
>using Bouncy Castle 1.60 for JDK 1.5-1.8.
>
>I want to include the modification detection code so that GPG accepts
>the encrypted file without warning, and so that I can also detect
>modifications when I later handle decryption via BouncyCastle.
>
>It looks like org.bouncycastle.bcpg.ModDetectionCodePacket will let me
>handle the packet, but my understanding is that I could only use it
>with the lower-level bcpg interface.  org.bouncycastle.openpgp classes
>don't expose the BCPGOutputStream, and anyway, they manage it directly
>for me so I probably shouldn't stick my hands in there.
>
>Searching for ModDetectionCodePacket didn't produce any obviously
>useful results or usage examples.
>
>Is it currently possible to use a MDC with the high-level
>org.bouncycastle.openpgp package?
>
>Thanks!
>Mike

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