Pipelined deciphering round keys generation

An apparatus comprising:

• a deciphering round key generator to successively generate in real time at least a first and a second deciphering round key based on a deciphering key;
• and
• a deciphering unit coupled to the deciphering round key generator to successively employ said real time successively generated deciphering round keys to incrementally decipher a ciphered text;
• wherein said deciphering round key generator at least generates said second deciphering round key in real time while said deciphering unit deciphers said ciphered text employing said real time generated first deciphering round key.

A routing apparatus comprising:

• a first deciphering round key generator to successively generate in real time at least a first and a second deciphering round key based on a first deciphering key for a first network traffic flow;
• a first deciphering unit coupled to the first deciphering round key generator to successively employ said real time successively generated at least first and second deciphering round keys to incrementally decipher a first ciphered text for the first network traffic flow;
• a second deciphering round key generator to successively generate in real time at least a third and a fourth deciphering round key based on a second deciphering key for a second network traffic flow;
• and
• a second deciphering unit coupled to the second deciphering round key generator to successively employ said real time successively generated at least third and fourth deciphering round keys to incrementally decipher a second ciphered text for the second network traffic flow;
• wherein said first deciphering round key generator at least generates said second deciphering round key in real time while said first deciphering unit deciphers said first ciphered text employing said real time generated first deciphering round key, and said second deciphering round key generator at least generates said fourth deciphering round key in real time while said second deciphering unit deciphers said second ciphered text employing said real time generated third deciphering round key.