PatentPDF Available

Method for Securely Using Digital Signatures in a Commercial Cryptographic System

Authors:
  • FW Sudia Consulting
II:
IIII
‘..
MI
United
States
Patent
[191
Sudia
US005659616A
[11]
Patent
Number:
[45]
Date
of
Patent:
5,659,616
Aug.
19,
1997
[54]
METHOD
FOR
SECURELY
USING
DIGITAL
SIGNATURES
IN
A
COMMERCIAL
CRYP'I'OGRAPHIC
SYSTEM
[7
5]
Inventor:
Frank
Wells
Sudia,
New
York,
NY.
[73]
Assignee:
Certco,
LLC,
New
York,
NY.
[21]
Appl.
No.:
682,071
[22]
Filed: Jul.
16,
1996
Related
US.
Application
Data
[63]
Continuation
of
Ser.
No.
277,438,
Jul.
19,
1994,
abandoned.
[51] Int.
Cl.6
.
.........................................
..
1104K
1/00
[52]
Us.
01.
............
..
380/23;
380/25;
380/30
[58]
Field
of
Search
................................
..
380/23,
25.
24,
380/4.
3,
49,
29,
30
[56]
References
Cited
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