File/lightning-matrix-four/ was a United Nations Space Command publicly available encryption key.[1]
UsageEdit
It was used in conjunction with encryption key Red to encrypt and decrypt United Nations Space Command Priority Transmission 09872H-98.[1]
List of appearancesEdit
- Halo: The Fall of Reach (First appearance)
SourcesEdit
- ^ a b Halo: The Fall of Reach, Chapter 23, page 214(2001 paperback); page 245(2010 paperback)