Security Association
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A security association is the establishment of shared security information between two network entities to support secure communication. An SA may include cryptographic keys, initialization vectors or digital certificates. An SA is a simplex and logical connection which endorses and provides a secure data connection between the network devices. The fundamental requirement of an SA arrives when the two entities communicate over more than one channel. Take an example of...
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A security association is the establishment of shared security information between two network entities to support secure communication. An SA may include cryptographic keys, initialization vectors or digital certificates. An SA is a simplex and logical connection which endorses and provides a secure data connection between the network devices. The fundamental requirement of an SA arrives when the two entities communicate over more than one channel. Take an example of mobile subscriber and a base station. The subscriber may subscribe itself for more than one service. Therefore each service may have different service primitives like a data encryption algorithm, public key or initialization vector. Now to make things easier, all this security information is grouped logically. This logical group itself is a Security Association. Each SA has its own ID called SAID. So now the base station and mobile subscriber will share the SAID and they will derive all the security parameters, making things a lot easier.
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