Author Archives: raffaem

What is the correct way to create a backup copy of a PGP key pair?

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I am using GnuPG 2.2.20 to create my key pair.
I have successfully created a key pair, now I want to create a backup copy in case of HDD failure.
Following the instruction here, I have tried
gpg –output backupkeys.pgp –armor –export-sec… Continue reading What is the correct way to create a backup copy of a PGP key pair?→

How am I supposed to use a revocation certificate, and can there be multiple revocation certificates for the same private key?

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I just generated a revocation certificate for my key. Unfortunately I don’t fully understand the concept. Here are my questions:

How exactly am I supposed to use it?
Suppose for example that my private key gets compromised.
What exactly I… Continue reading How am I supposed to use a revocation certificate, and can there be multiple revocation certificates for the same private key?→

How do I know that the ISO image of the Linux distribution I have downloaded does not contain the NSA backdoor?

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I have downloaded the ISO image of Kubuntu 20.10 and installed it.
I am afraid that the ISO image may have been tainted (for example, by the NSA) to insert a backdoor into it.
As I see it, there are two ways to insert a backdoor (I mean an… Continue reading How do I know that the ISO image of the Linux distribution I have downloaded does not contain the NSA backdoor?→

Why governments use spywares instead of just redirecting traffic to their own servers by announcing a new path on BGP?

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I was reading about The Hacking Team on Wikipedia. It produces "offensive intrusion and surveillance capabilities" and sells it to "to governments, law enforcement agencies". Its spyware allows governments "to moni… Continue reading Why governments use spywares instead of just redirecting traffic to their own servers by announcing a new path on BGP?→