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== PGPv8 Practical, Week 11 ==
+The purpose of this practical is to learn how to use PGP for encrypting and
+decrypting data.
+
+At the end of the practical, we should be able to verify the authenticity of
+emails using digital signatures. Moreover, we should be able to encrypt emails
+so that only the desired people can decrypt them.
+
=== Problem 1: generating enough entropy ===
Because entropy is mainly generated by hardware components, it is quite