Hello list, How to decrypt large files, e.g. gpg-encrypted backups, without copying them to the machine with the GPG private key?
I tried to split off the first gpg package from the encrypted file and extract the session key from that, but that did not work: * Remote: dd if=test.gpg bs=16k count=1 | gpgsplit * Local GPG machine: gpg --homedir x --show-session-key < 000001-001.pk_enc The later command does not fail but it does not print out the session key either. * Local machine workaround: By appending an unrelated zero-data length encrypted "mdc" block, the session key extraction works, but that seems to be a dirty workaround: (cat 000001-001.pk_enc; echo "0gsBAAAAAAAAAAAAAA==" | base64 -d) > test.gpg gpg --homedir x --show-session-key < test.gpg What would be a clean way to do that? Best regards, Roman ROMAN FIEDLER Scientist Information Management Center for Digital Safety & Security AIT Austrian Institute of Technology GmbH Reininghausstraße 13/1 | 8020 Graz | Austria T +43 50550-2957 | M +43 664 8561599 | F +43 50550-2950 roman.fied...@ait.ac.at | https://www.ait.ac.at View my researcher profile: https://www.ait.ac.at/profile/detail/Fiedler-Roman/ FN: 115980 i HG Wien | UID: ATU14703506 www.ait.ac.at/Email-Disclaimer
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