Hi, I just found an issue today. There's 2 keys, TestUser1 and TestUser2. TestUser1 was without a passphrase. TestUser2 was passphrase-protected, and used Curve 448 for encryption. I encrypted the file with '--hidden-recipient'. After decryption failed, gpg-agent was killed.
Here's the output: --------------------------------------------------------------------------------- # gpg2 --version gpg (GnuPG) 2.3.1 libgcrypt 1.9.3 # gpg2 -k /root/.gnupg/pubring.kbx ------------------------ pub ed25519/0xFB3157F958F70A96 2021-04-25 [SC] 55532181F95968D1D72E1E20FB3157F958F70A96 uid [ultimate] TestUser1 sub cv25519/0x2EE9DBD136764E1E 2021-04-25 [E] pub ed25519/0x19EC312D820A2F6E 2021-04-25 [C] BF4E1C04CD57D9F11CFE5B0A19EC312D820A2F6E uid [ultimate] TestUser2 sub ed25519/0x92588FA653AED764 2021-04-25 [S] sub cv448/0xB36D6CA2989293FF 2021-04-25 [E] sub ed25519/0x6C12D278DF8E2792 2021-04-25 [A] # gpg2 -a -R 0xB36D6CA2989293FF! -e 1.txt # gpg2 -d 1.txt.asc gpg: encrypted with ECDH key, ID 0x0000000000000000 gpg: anonymous recipient; trying secret key 0x2EE9DBD136764E1E ... gpg: keydb_search failed: Broken pipe gpg: public key decryption failed: End of file gpg: decryption failed: End of file --------------------------------------------------------------------------------- - William
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