Patent US2359102A successfully refreshed from Google Patents.
Patent EP0587375A2 successfully refreshed from Google Patents.
EP0587375A2
Expired / Lapsed
EP
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Security unit for data processor systems
Assignee: Algorithmic Research Ltd
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Filing: 1993-09-02
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Granted: —
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Expires: 2013-09-02
Abstract
Abstract A processor unit connectible between a computer and a keyboard unit stores a plurality of programs for operating the processor unit according to either a Transparent Mode wherein stored data inputted from the keyboard via a keyboard I/O port in the processor unit is transmitted to the computer unit, or according to one of a plurality of Special Handling Modes, and is controlled to select either the Transparent Mode or one of the Special Handling Modes.
Inventors
- 👤 Yossi Tulpan
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 19:27
CPC Classifications
G; G06; G06F; G06F21/00; G06F21/70; G06F21/82; G06F21/30; G06F21/31; G06F21/34; G06F21/42; G06F21/60; G06F21/602; G06F3/00; G06F3/01; G06F3/02; G06F3/0202; G06F3/021; G07; G07F; G07F7/00; G07F7/08; G07F7/0806; G07F7/0813; G07F7/0826; G06F2221/00; G06F2221/21; G06F2221/2105
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
157 words
For use in a data processor system including a computer unit and a keyboard unit communicating with the computer unit via keyboard ports in the keyboard unit and computer unit, a processor unit connectible between said computer unit and said keyboard unit; said processor unit comprising: a keyboard I/O port connectible to said keyboard I/O port on the keyboard unit for receiving data inputted from said keyboard unit; a memory for storing said inputted data; a keyboard I/O port connectible to said keyboard I/O port on the computer unit; a processor storing a plurality of programs for operating the processor unit according to either a Transparent Mode wherein the stored data inputted from the keyboard unit via said keyboard I/O port is transmitted via said keyboard I/O port to said computer unit, or according to a Special Handling Mode; and control means for controlling said processor to select either the Transparent Mode or a Special Handling Mode.
Claim 2
Dependent Claim
54 words
The processor unit according to Claim 1, wherein said unit further includes a smartcard reader for reading data from a smartcard inserted therein, which data is also stored in said memory; said control means also controlling said processor to process the data inputted via said smartcard reader according to the selected mode of operation.
Claim 3
Dependent Claim
43 words
The processor unit according to Claim 2, wherein said unit further includes a smartcard writer for writing data onto a smartcard inserted therein; said control means also controlling said processor to write data on the smartcard according to the selected mode of operation.
Claim 4
Dependent Claim
21 words
The processor unit according to Claim 3, wherein said processor unit is a security unit capable of performing various security functions.
Claim 5
Dependent Claim
27 words
The security unit according to Claim 3, wherein said programs stored in said processor of the security unit include a plurality of Special Handling Modes of operation.
Claim 6
Dependent Claim
56 words
The security unit according to Claim 5, wherein said stored Special Handling Modes includes a Load Program Mode, wherein the security unit receives a program from the computer unit, receives a signature, computes the program's fingerprint, checks to determine whether the signature matches the program's fingerprint, and if so, loads the program into the computer unit.
Claim 7
Dependent Claim
62 words
The security unit according to either of Claims 5 or 6, wherein said stored Special Handling Modes includes a Generate Smartcard Mode, wherein the security unit receives information from the smartcard's user from the computer unit, receives a password from the keyboard, generates ciphering, deciphering keys, and writes information received from the computer unit and the ciphering, deciphering keys into the smartcard.
Claim 8
Dependent Claim
38 words
The security unit according to any one of Claims 5-7, wherein said stored Special Handling Modes include a Read Smartcard Mode, wherein the inserted smartcard is read, and only the public data is sent to the computer unit.
Claim 9
Dependent Claim
79 words
The security unit according to any one of Claims 5-8, wherein said security unit further includes an internal real-time clock, and wherein said stored Special Handling Modes include a Login Smartcard Mode, in which data is read from an inserted smartcard, the current time and date are read from the internal clock, and a warning is produced if the current time and date on the smartcard do not match the current time and date read from the internal clock.
Claim 10
Dependent Claim
68 words
The security unit according to Claim 9, wherein said stored Special Handling Modes further include a Sign Block Mode, wherein the security unit checks to determine whether the Smartcard Mode is logged in, issues a warning signal if it is not; and if it is, receives a block to sign, reads the signature keys from the smartcard, signs the block, and sends the results to the computer unit.
Claim 11
Dependent Claim
67 words
The security unit according to any one of Claims 5-10, wherein said stored Special Handling Modes include a Change Password Mode, wherein the old password and the new password are both entered in the keyboard, and a new password is generated and is recorded on the inserted smartcard, or is used to enter data on the smartcard, or is used as an internal PIN for the smartcard.
Claim 12
Dependent Claim
50 words
The security unit according to any one of Claims 5-11, wherein the security unit includes light indicators; and wherein said stored Special Handling Modes include a Perform Diagnostic Mode, wherein all said indicators are energized, the existing stored programs are checked, and the results are transmitted to the computer unit.
Claim 13
Dependent Claim
47 words
The security unit according to any one of Claims 1-12, wherein said unit further includes two display I/O ports connectible to the computer unit and a display unit, respectively; said control means also controlling said processor to transmit data via said display port to the display unit.
References Cited (Backward Citations)
No citation records indexed.
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