## Advantages:
·
uses different keys to
encrypt and decrypt
·
...public key is known to
all, but private key is known only to recipient
·
...only private key must be
kept secret
·
«anyone can use public key
to encrypt
·
...only recipient can
decrypt
·
...keys are not shared
·
...so is very secure
·
...if private key
compromised, only senders data is at risk as any other data
·
sent to others is encrypted
with a different public key.
## Disadvantages:
·
...process is relatively
slow...
·
...so not suitable for e.g.
hard disk encryption on-the-fly.
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