Trying to Understand Keys

[Carlos Williams]

Looking to create keys however I really would like to understand
before I select a key which is best to use. Normally I would just
select "default" when I don't know however I think in this case it
would be wise to understand the difference between the options listed
below...

Anyone explain to me the pros / cons between the 1, 2. & 5?

Please select what kind of key you want:
   (1) DSA and Elgamal (default)
   (2) DSA (sign only)
   (5) RSA (sign only)
Your selection?


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