Total cost of ownership. The complete costs of owning a product, system, or service. Total cost of ownership will include the capital acquisition cost, installation, maintenance, training, technical support, and labor to make required changes to related products, systems, or services. Most estimates place the TCO at about three to four times the capital acquisition price for the product, system, or service.
TKIP
Temporal Key Integrity Protocol. TKIP is an encryption protocol that adds a function whereby each packet is rehashed as part of the Message Integrity Check (MIC). A hashing function is used to provide a new key for each packet, thereby greatly increasing the security when compared to the static keys offered by WEP. TKIP utilizes the RC4 stream cipher with 128-bit keys for encryption and 64-bit keys for authentication. TKIP is a fundamental part of WPA, WPA2, and 802.11i.
