key transport (algorithm or protocol)

A key establishment method by which a secret key is generated by a system entity in a communication association and securely sent to another entity in the association. (Compare: key agreement.)

Tutorial: Either (a) one entity generates a secret key and securely sends it to the other entity, or (b) each entity generates a secret value and securely sends it to the other entity, where the two values are combined to form a secret key. For example, a message originator can generate a random session key and then use the RSA algorithm to encrypt that key with the public key of the intended recipient.

"The procedure to send a symmetric key from one party to other parties. As a result, all legitimate participants share a common symmetric key in such a way that the symmetric key is determined entirely by one party." [A9042]