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SEC PUB
Not possible

Convert SEC to PUB

Can you convert SEC to PUB?
QUICK ANSWER
Is it possible to convert SEC to PUB?
No - not a direct conversion.

You cannot turn a secret key into 'just' a public key by conversion in the security sense, but you CAN export the matching PUBLIC key from it ('gpg --export --armor KEYID'). The private material is never recoverable from the public key.

No direct path
Also to PUB: PPK · PPP · IND

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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Converting SEC to PUB

A .SEC file and a .PUB file hold different kinds of data, so there is no direct way to turn one into the other.

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

About these formats

.SEC PGP Secret Key Ring File

A SEC file is a PGP Secret Key Ring - it holds the private (secret) half of a PGP/OpenPGP key pair. You import it into PGP software such as Gpg4win/Kleopatra on Windows, GPG Suite on macOS,…

Open .SEC details →
.PUB Microsoft Publisher Document

A PUB file is a Microsoft Publisher document - a fixed print-layout file for flyers, newsletters, brochures, and cards. If you have Publisher (Office 2021 or older Microsoft 365), open it…

Open .PUB details →