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1. The Jargon File (version 4.4.7, 29 Dec 2003) |
Orange Book
n.
The U.S. Government's (now obsolete) standards document Trusted Computer
System Evaluation Criteria, DOD standard 5200.28-STD, December, 1985 which
characterize secure computing architectures and defines levels A1 (most
secure) through D (least). Modern Unixes are roughly C2. See also book
titles.
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2. The Free On-line Dictionary of Computing (30 December 2018) |
Orange Book
A1 security
B1 security
B2 security
B3 security
C1 security
C2 security
A standard from the US Government
National Computer Security Council (an arm of the
U.S. National Security Agency), "Trusted Computer System
Evaluation Criteria, DOD standard 5200.28-STD, December 1985"
which defines criteria for trusted computer products. There
are four levels, A, B, C, and D. Each level adds more
features and requirements.
D is a non-secure system.
C1 requires user log-on, but allows group ID.
C2 requires individual log-on with password and an audit
mechanism. (Most Unix implementations are roughly C1, and
can be upgraded to about C2 without excessive pain).
Levels B and A provide mandatory control. Access is based on
standard Department of Defense clearances.
B1 requires DOD clearance levels.
B2 guarantees the path between the user and the security
system and provides assurances that the system can be tested
and clearances cannot be downgraded.
B3 requires that the system is characterised by a mathematical
model that must be viable.
A1 requires a system characterized by a mathematical model
that can be proven.
See also crayola books, book titles.
[Jargon File]
(1997-01-09)
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Common Misspellings > |
Orange Book rOrange Book rOange Book OrOange Book range Book OOrange Book Oarnge Book Orarnge Book Oange Book Orrange Book Ornage Book Oranage Book Ornge Book Oraange Book Oragne Book Orangne Book Orage Book Orannge Book Oraneg Book Orangeg Book Orane Book Orangge Book Orang eBook Orange eBook Orang Book Orangee Book OrangeB ook Orange B ook OrangeBook Orange Book Orange oBok Orange BoBok Orange ook Orange BBook Orange Boook Orange Bok Orange Boook Orange Boko Orange Booko Orange Bok Orange Boook Orange Bokok Orange Boo Orange Bookk 9range Book o9range Book 9orange Book (range Book o(range Book (orange Book 0range Book o0range Book 0orange Book irange Book oirange Book iorange Book prange Book oprange Book porange Book krange Book okrange Book korange Book lrange Book olrange Book lorange Book arange Book erange Book urange Book O4ange Book Or4ange Book O4range Book O$ange Book Or$ange Book O$range Book O5ange Book Or5ange Book O5range Book Oeange Book Oreange Book Oerange Book Otange Book Ortange Book Otrange Book Odange Book Ordange Book Odrange Book Ofange Book Orfange Book Ofrange Book Ogange Book Organge Book Ogrange Book Orqnge Book Oraqnge Book Orqange Book Orwnge Book Orawnge Book Orwange Book Orsnge Book Orasnge Book Orsange Book Orxnge Book Oraxnge Book Orxange Book Orznge Book Oraznge Book Orzange Book Or nge Book Ora nge Book Or ange Book Orenge Book Oringe Book Oronge Book Orunge Book Oragge Book Orangge Book Oragnge Book Orahge Book Oranhge Book Orahnge Book Orajge Book Oranjge Book Orajnge Book Orabge Book Oranbge Book Orabnge Book Oramge Book Oranmge Book Oramnge Book Ora ge Book Oran ge Book Ora nge Book Oranre Book Orangre Book Oranrge Book Orante Book Orangte Book Orantge Book Oranye Book Orangye Book Oranyge Book Oranfe Book Orangfe Book Oranfge Book Oranhe Book Oranghe Book Oranhge Book Oranve Book Orangve Book Oranvge Book Oranbe Book Orangbe Book Oranbge Book Oranne Book Orangne Book Orannge Book Oran e Book Orang e Book Oran ge Book Orang3 Book Orange3 Book Orang3e Book Orang# Book Orange# Book Orang#e Book Orang4 Book Orange4 Book Orang4e Book Orangw Book Orangew Book Orangwe Book Orangr Book Oranger Book Orangre Book Orangs Book Oranges Book Orangse Book Orangd Book Oranged Book Orangde Book Orangf Book Orangef Book Orangfe Book Oranga Book Orangi Book Orango Book Orangu Book Orange fook Orange bfook Orange fbook Orange gook Orange bgook Orange gbook Orange hook Orange bhook Orange hbook Orange vook Orange bvook Orange vbook Orange nook Orange bnook Orange nbook Orange ook Orange b ook Orange book Orange B99k Orange Bo99k Orange B99ok Orange B((k Orange Bo((k Orange B((ok Orange B00k Orange Bo00k Orange B00ok Orange Biik Orange Boiik Orange Biiok Orange Bppk Orange Boppk Orange Bppok Orange Bkkk Orange Bokkk Orange Bkkok Orange Bllk Orange Bollk Orange Bllok Orange Baak Orange Beek Orange Buuk Orange Boou Orange Booku Orange Boouk Orange Booi Orange Booki Orange Booik Orange Booo Orange Booko Orange Boook Orange Booj Orange Bookj Orange Boojk Orange Bool Orange Bookl Orange Boolk Orange Boom Orange Bookm Orange Boomk Orange Boo, Orange Book, Orange Boo,k Orange Boo. Orange Book. Orange Boo.k Definition commonly spelled as: Defanition or Defenition, Synonym as: Synonim, Sinonym or Sinonim, Thesaurus as: Thesorus or Thesauris, Dictionary as: Dictionery or Dictionry and Define is usually not misspelled. What does mispell meen? It Meens...
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