PatentPDF Available

Electronic Cryptographic Packing

Authors:
  • FW Sudia Consulting

Abstract

A method of unwrapping wrapped digital data that is unusable while wrapped, includes obtaining an acceptance phrase from a user; deriving a cryptographic key from the acceptance phrase; and unwrapping the package of digital data using the derived cryptographic key. The acceptance phrase is a phrase entered by a user In response to information provided to the user. The information and the acceptance phrase can be in any appropriate language. The digital data includes, alone or in combination, any of: software, a cryptographic key, an identifying certificate, an authorizing certificate, a data element or field of an identifying or authorizing certificate, a data file representing an image, data representing text, numbers, audio, and video.
US005995625A
Ulllted
States
Patent
[19]
[11]
Patent
Number:
5,995,625
Sudia
et
al.
[45]
Date
of
Patent:
Nov.
30,
1999
[54]
ELECTRONIC
CRYPTOGRAPHIC
PACKING
5,553,143
9/1996
5,555,303
9/1996
[75]
Inventors:
Frank
W.
Sudia,
Newton
Centre,
5,586,186
12/1996
Mass.;
Alan
Asay,
Salt
Lake
City,
577017343
12/1997
Utah;
Ernest
F.
Brickell,
Albuquerque,
5’708’709
1/1998
N.M6X.;
Richard
Ankney,
Chantilly,
FOREIGN
PATENT
DOCUMENTS
Va.;
Peter C.
Freund;
Marcel
M.
Yung,
both
of
New
York,
N_Y_;
David
O
715
242
6/1966
European
Pat.
Off.
.
W_
Kravitz,
Albuquerque,
N_MeX~
O
444
351
9/1991
European
Pat.
Off.
.
[73]
Assignee:
Certco,
LLC,
NeW
York,
NY.
OTHER
PUBLICATIONS
International
Search
Report,
dated
Aug.
7,
1998;
PCT/US98/
[21]
Appl.
No.:
08/822,732
04329.
[22]
Filedi
Mall
24,
1997 Primary
Examiner—Salvatore
Cangialosi
[51]
Int.
Cl?
......................................................
..
H04L
9/00
Attorney)
Agent)
0’
Firm—p?lsbury
Madison
8‘
Sum’
LLP
[52]
US.
Cl.
................
..
380/25;
380/4
[57]
ABSTRACT
[58]
Field
of
Search
......
..
380/4,
25
_ _ _ _
A
method
of
unwrapping
Wrapped
digital
data
that
is
unus
[56]
References
Cited
able
While
Wrapped,
includes
obtaining
an
acceptance
phrase
from
a user;
deriving
a
cryptographic
key
from
the
Us
PATENT
DOCUMENTS
acceptance
phrase;
and
unwrapping
the
package
of
digital
475287643
7/1985
Freeny’
Jr‘
'
data
using
the
derived
cryptographic
key.
The
acceptance
4
827 508
5/1989
Shear
........................................
..
380/4
phrase
15
a
Phrase
entered
by
a
user
In
response
to
lnforma'
4:941:175
7/199O
Enescu
et
a1_
_
tion
provided
to
the
user.
The
information
and
the
accep
4,953,209
8/1990
Ryder,
Sr.
et
al.
.....................
..
380/25
tanee
phrase
can
be
in
any
appropriate
language.
The
digital
4,977,594
12/1990
Shear
.................
..
380/4
data
includes,
alone
or
in
combination,
any
of:
softWare,
a
5,050,213
9/1991
Shear
........................................
..
380/4
Cryptographic
key,
an
Certi?cate,
an
authorizing
571387712
8/1992
Corbm
-
certi?cate, a
data
element
or
?eld
of
an
identifying
or
53433526
8/1994
Lassers
'
authoriZing
certi?cate, a
data
?le
representing
an
images,
5,343,527
8/1994
Moore
.......................................
..
380/4
data representing
text
numbers
audio
and
Video
5,390,297
2/1995
Barber
et
al.
.
'
5,400,403
3/1995
Fahn
et
al.
................................
..
380/4
5,509,074
4/1996
Choudhury
et
al.
....................
..
380/25
42
Claims,
20
Drawing
Sheets
License
Terms Words
of
Conceu‘ed
92
and
Conditions
Assent
Glyph
Values
(90
(
\\
DATA
WRAPPER
l
Glyph
V°lue=
\\
_
_
I
J
1
OAB737F2
Wrapped
Dlgli'Gl
Generqfe
Data
Content
Unwrap
r-'-_—--1
Key
L>S2_-_B_7_l
93
r-"""1
-
.X4=F2|
Function
|_____.1
L--""
(eg,Keyed
9959A:
Hush)
F--:--1
0:21am
94
Unwrapped
Digital
UID
Value
=32BB4C27l
clear)
Unique
ID
Value
=32BB4C27
Data
Content
Provider
Signature
(optional)
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Research
Full-text available
Paper based on the patent application US 2005/0114666 A1 Blocked Tree Authorization and Status Systems.
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