How to use GnuPG in Python?

by Amrita Mitra | Feb 27, 2017 | Cryptography And Python, Data Security, Encryption, PGP and GPG

data: the byte stream or file to encrypt
recipients: key-id or fingerprint of recipients

To encrypt a file, you can use the following method:

>>> stream = open(filename, "rb")
>>> gpg.encrypt_file(stream, recipients)

To decrypt a message, use the following method:

>>> decrypted_data = gpg.decrypt(data)

To decrypt a file, use the following method:

>>> stream = open(filename, "rb")
>>> decrypted_data = gpg.decrypt_file(stream)

Signing And Verification Using GPG Keys:

To sign data using GPG in Python, use the following method:

>>> signed_data = gpg.sign(message)

To sign a file, use the following method:

>>> stream = open(filename, "rb")
>>> signed_data = gpg.sign_file(stream)

To verify the data, use the following method:

>>> verified = gpg.verify(data)

And to verify a file, use the following method:

>>> stream = open(filename, "rb")
>>> verified = gpg.verify_file(stream)

Signing And Encryption Together Using GPG Keys:

To use signing and encryption together using GPG in Python use the following methods:

>>> encrypted_data = gpg.encrypt(data, recipients, sign=signer_fingerprint,
     passphrase=signer_passphrase)

To decrypt data, use the following method:

>>> decrypted_data = gpg.decrypt(data, passphrase=recipient_passphrase)

Deleting GPG Keys:

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by Amrita Mitra | October 3, 2023 | Featured, Linear Algebra | 0 Comments

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