Why PGP offers a strong and secure method of encrypting emails
Understanding PGP BlackBerry
encryption is key to determining whether getting a pgp encrypted BlackBerry device makes sense. Basically, PGP (Pretty
Good Privacy) for BlackBerry devices uses modified public key system for
encrypting email messages. BlackBerry users have private encryption keys that
are only known to them and other public encryptions keys, which other users
need to know so that they can communicate promptly. The private and public keys
work in tandem in various ways. From the sender's perspective, the sender will
compose an email and send it. The message at this point is compressed. After
compressing, PGP encryption creates one-time, random session keys that are used
for encrypting the compressed message on the BlackBerry device used by the
sender. It is this session key that will be needed for decrypting the email
message.
Since the recipient has a public
key, it is this key that will be used to encrypt the session key. The key is
only tied to recipient's specific blackberry
pgp device. Decryption of the email message will be done by using the
private key, which is held by the email recipient on their device. The session
key and email message are encrypted and sent to the recipient. Should the
message be intercepted, the intruder will not be able to view the message since
session key and email are already encrypted and the private key held by the
recipient can be used for decryption. From the recipient's perspective, the
recipient basically receives an email. At this point PGP encryption will
automatically decrypt the session key using recipient's private key.
It is worth noting that the
recipient will be the only one who will know the private key since it is
private to them. The recipient's private key is usually tied to their phantom blackberry device. This means
that no other device or person will be able to fully decrypt the email or
session key. In this case, PGP will use the session key in order to decrypt the
already compressed message. Once this is done, PGP will decompress the email
and the recipient will be able to read the message. From the information above,
it is clear to see why PGP for BlackBerry can be used to offer, strong
encryption as well as safe and secure email communication.
As with other methods of
encrypting information, the encryption method must have a strong algorithm. One
reason for this is that an encryption algorithm can only be as strong as
computing power that changes with the changing technology. Computational power
and technology are increasing every day. As such, the algorithms for strength
of PGP keys must also be increased in order to match the computational power.
Therefore, it is suffice to say that PGP encryption still remains a strong and
secure method of encrypting email messages.
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