US Patent No: 6,128,741
Number of patents in Portfolio can not be more than 2000
Compact transparent dongle device
Stats
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Oct 3, 2000
Issued date -
Mar 5, 1998
filing date -
09/035,186
serial no -
In Force
status
Importance
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Abstract
A compact hardware key for protecting software executing on a computer is disclosed. The hardware key uses a two piece insulator design in which each insulator piece provides a double layer insulator body for protection from tampering, insulator areas for electrically isolating I/O connector pins, and an integral circuit board support portion for securely mounting the circuit board assembly. The compact hardware key also comprises a unique coaxially displaced interrupt pin structure.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,817,140 Software protection system using a single-key cryptosystem, a hardware-based authorization system and a secure coprocessor | 337 | 1986 | |
| 5,146,575 Implementing privilege on microprocessor systems for use in software asset protection | 105 | 1986 | |
| 5,224,166 System for seamless processing of encrypted and non-encrypted data and instructions | 159 | 1992 | |
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| 4,634,807 Software protection device | 222 | 1985 | |
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| 4,864,494 Software usage authorization system with key for decrypting/re-encrypting/re-transmitting moving target security codes from protected software | 168 | 1986 | |
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| 4,446,519 Method and apparatus for providing security for computer software | 246 | 1981 | |
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| 4,278,837 Crypto microprocessor for executing enciphered programs | 427 | 1979 | |
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| 5,832,207 Secure module with microprocessor and co-processor | 35 | 1996 | |
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| 5,742,756 System and method of using smart cards to perform security-critical operations requiring user authorization | 145 | 1996 | |
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| 4,458,315 Apparatus and method for preventing unauthorized use of computer programs | 261 | 1982 | |
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| 5,928,362 Peripheral card security and configuration interface | 10 | 1997 | |
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| 6,009,523 Information processing apparatus with security checking function | 6 | 1996 | |
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| 4,596,898 Method and apparatus for protecting stored and transmitted data from compromise or interception | 48 | 1984 | |
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| 5,706,426 Software protection method and apparatus | 18 | 1996 | |
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| 4,599,489 Solid state key for controlling access to computer software | 118 | 1984 | |
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| 5,081,675 System for protection of software in memory against unauthorized use | 88 | 1989 | |
| 5,343,524 Intelligent security device | 44 | 1991 | |