CPC H04L 63/123 (2013.01) [H04L 9/3236 (2013.01); H04L 63/0428 (2013.01)] | 8 Claims |
1. A method for improving data transmission security at a network node, comprising:
sending, from a first network node to a user equipment, a preamble message after the user equipment is released by a second network node from a previous connection;
receiving, from a user equipment at the first network node, a connection request message including a token calculated based a hash value and an integrity key, wherein the hash value represents data included in the connection request message;
verifying, at the first network node, the token included in the connection request message by computing the hash value; and
forwarding, from the first network node to a gateway, the data in response to verifying the token.
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