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In computing, Internet Protocol Security (IPsec) ... RFC 2401: Security Architecture for the Internet Protocol (IPsec overview) (obsoleted by RFC 4301) RFC ...
There are several open source implementations of IPsec with associated IKE capabilities. On Linux, Libreswan, Openswan and strongSwan implementations provide an IKE daemon which can configure (i.e., establish SAs) to the KLIPS or XFRM/NETKEY kernel-based IPsec stacks. XFRM/NETKEY is the Linux native IPsec implementation available as of version 2.6.
Because of the lack of confidentiality inherent in the L2TP, it is often implemented along with IPsec. This is referred to as L2TP/IPsec, and is standardized in IETF RFC 3193. The process of setting up an L2TP/IPsec VPN is as follows: Negotiation of IPsec security association (SA), typically through Internet key exchange (IKE).
The Oakley Key Determination Protocol is a key-agreement protocol that allows authenticated parties to exchange keying material across an insecure connection using the Diffie–Hellman key exchange algorithm.
HAIPE IS is based on IPsec with additional restrictions and enhancements. One of these enhancements includes the ability to encrypt multicast data using a "preplaced key" (see definition in List of cryptographic key types). This requires loading the same key on all HAIPE devices that will participate in the multicast session in advance of data ...
1 Overview. 2 History and the ... IPsec. Internet Protocol Security is a collection of protocols that ensure the integrity of encryption in the connection between ...
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Leaked NSA presentations released by Der Spiegel indicate that ISAKMP is being exploited in an unknown manner to decrypt IPSec traffic, as is IKE. [2] The researchers who discovered the Logjam attack state that breaking a 1024-bit Diffie–Hellman group would break 66% of VPN servers, 18% of the top million HTTPS domains, and 26% of SSH servers ...