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gpg - Is the MDC check redundant if the file is signed?
Fresh6 days ago
Mar 15, 20261599 viewsConfidence Score0%
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Problem
I understand that gpg 1.4.9 computes a MDC code by default. According to my research this corresponds to to Sym. Encrypted and Integrity Protected Data Packet (tag 18) in the PGP spec. If the file is signed doesn't this also provide modification protection (in addition to providing proof of sender'…
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Fix for: gpg - Is the MDC check redundant if the file is signed?
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Yes, all versions of GPG signatures provide modification protection. When you sign a document, it creates a hash of the document (which algorithm it uses depends on the preferences you have set). The hash is then encoded using your private key. Anyb…
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