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Pre-shared key should be at least 256 bits of cryptographically random data

ahmad82pkn
Level 2
Level 2

Hi all,

i need some info, i got a client IPSEC VPN form.

they asked that (Pre-shared key should be at least 256 bits of cryptographically random data)

what does that really mean?

Key consisting of 256 characters like abcdefg......till256 characters are done ?           

or it means encryption we define in policy like

crypto isakmp policy 8

authentication  pre-share

encryption  aes-256 ????????

Please help me to understand this requirement for my cisco asa.

1 Reply 1

Michael Muenz
Level 5
Level 5

64 hex characters  =  256 binary bits

Michael

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Michael Please rate all helpful posts