cryptography - PGP encryption algor -

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i'm learning in detail how pgp system works there somethings not said everywhere tried ;

according diagram : https://upload.wikimedia.org/wikipedia/commons/4/4d/pgp_diagram.svg

when encrypting, use data , random key have protected data ( 1 locket ). here's first problem, how these data crypted ? algorithm has been used ?

my second problem @ last encryption ; locket data + locket key = encrypted message same thing here, how ? did used ?

also, read somewhere, hashing whole data can't change or break everything, when ?

thanks in advance !

so questions are:

  1. how data , random key encrypted , algorithm used.
  2. what algorithm used encrypted message locket data + locket key.

the message digest algorithm used in pgp (version 5.0 , later) called sha, stands secure hash algorithm, designed nsa national institute of standards , technology (nist). sha 160-bit hash algorithm.

that should answer both questions. checkout pdf

sha256 actaully used in bitcoin, funny how things related. remember there used free pgp downloads play around sadly pgp symantec product now, progres....


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