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Why is the DES/3DES VPN encryption Key, displayed in the running-config, different to my input?
Posted by Elena Brambilla, Last modified by Daniel Lizaola on 22 November 2017 03:56 PM
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Quote: DES Key Parity from Phil Harding A single DES key is 64 bits (8 bytes) long, however the actual key material used by the DES algorithm amounts to only 56 bits in length. The least significant bit of each byte is a parity bit, and should be set such that there is always an odd number of bits set (1's) in each key byte. Only the 7 most significant bits of each byte are effective for security purposes. Therefore the SmartNode change the entered DES/3DES encryption key to match to above explained rule. | |
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