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What is the pre-shared key for VPN?

What is the pre-shared key for VPN?

A pre-shared key is a Site-to-Site VPN tunnel option that you can specify when you create a Site-to-Site VPN tunnel. A pre-shared key is a string that you enter when you configure your customer gateway device.

What is IKE pre-shared key?

IKE peers authenticate each other by computing and sending a keyed hash of data that includes the pre-shared key. If the receiving peer is able to independently create the same hash using its pre-shared key, then it knows that both peers must share the same secret, thus authenticating the other peer.

How do I change my pre-shared key for VPN?


  1. Go to Configuration > VPN > General > Tunnel Group.
  2. Select the tunnel group that applies to the VPN tunnel you want to change the pre-shared key for, and click the Edit button.
  3. Select the IPSec tab.
  4. This tab includes the Pre-shared Key field.
  5. Enter the new pre-shared key.
  6. Click OK.
  7. Click Apply.

Is a pre-shared key the same as a password?

The WEP key or WPA/WPA2 preshared key/passphrase is not the same as the password for the access point. The password lets you access the access point settings. The WEP key or WPA/WPA2 preshared key/passphrase allows printers and computers to join your wireless network.

How long should a VPN pre-shared key be?

You can use a pre-shared key (also called a shared secret or PSK) to authenticate the Cloud VPN tunnel to your peer VPN gateway. As a security best practice, we recommend that you generate a strong 32-character pre-shared key.

At what protocol does IKE works?

IKE builds upon the Oakley protocol and ISAKMP. IKE uses X. 509 certificates for authentication ‒ either pre-shared or distributed using DNS (preferably with DNSSEC) ‒ and a Diffie–Hellman key exchange to set up a shared session secret from which cryptographic keys are derived.

Which is better OpenVPN or IKEv2?

Performance: In many cases IKEv2 is faster than OpenVPN since it is less CPU-intensive. There are, however, numerous variables that affect speed, so this may not apply in all use cases. From a performance standpoint with mobile users, IKEv2 may be the best option because it does well establishing a reconnection.

How do I get pre-shared key for VPN FortiGate?

IPsec VPN authenticating a remote FortiGate peer with a pre-…

  1. For Remote Device, select IP Address.
  2. For the IP address, enter 172.16. 202.1.
  3. For Outgoing interface, enter port1.
  4. For Authentication Method, select Pre-shared Key.
  5. In the Pre-shared Key field, enter sample as the key.
  6. Click Next.

Is the pre-shared key the password?

A pre-shared key is basically just a shared secret or password that is used to authenticate an individual attempting to join a wireless network (no username or identification or than the key is required).

What is a common problem with using pre-shared keys?

One of the dangers of pre-shared keys is that they can be captured in a hashed format over the air, allowing an attacker to perform offline password attacks to try to guess the key.

How do I configure the IKEv1 encryption?

Configuration Steps ¶ 1 Define the Encryption Domain 2 Specify the Phase 1 Policy 3 Specify the Phase 2 Proposal 4 Define the connection profile 5 Configure the Crypto Map 6 Bind the Crypto Map to the appropriate interface 7 Enable IKEv1 on the appropriate interface

What is IPsec Pre-Shared Key Generator?

IPsec Pre-Shared Key Generator. PSK Generator provides a secure process to negotiate a 64-byte IPsec Pre-Shared Key (also known as a Shared Secret or PSK) through insecure means, such as email. Note: This page uses client side javascript. It does not transmit any entered or calculated information. Learn more about this PSK Generator.

How does the shared secret work with a VPN?

You and your VPN partner will use two separate passwords to create a unique 64-byte shared secret with the help of a cryptographic hash generator. Regardless of the length of each password, the generated Shared Secret will always be 64 bytes.

Does Ike need to use aggressive mode for remote authentication?

But: If one remote side has only a dynamic IP address, IKE must use the aggressive mode for its authentication. In this scenario, a hash from the PSK traverses the Internet. An attacker can do an offline brute-force attack against this hash.

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