| Patent Number |
Title Of Patent |
Date Issued |
| 7893830 |
System and method of dynamically weighted analysis for intrusion decision-making |
February 22, 2011 |
| An intrusion detection mechanism is provided for flexible, automatic, thorough, and consistent security checking and vulnerability resolution in a heterogeneous environment. The mechanism may provide a predefined number of default intrusion analysis approaches, such as signature-based, |
| 7450005 |
System and method of dynamically weighted analysis for intrusion decision-making |
November 11, 2008 |
| An intrusion detection mechanism is provided for flexible, automatic, thorough, and consistent security checking and vulnerability resolution in a heterogeneous environment. The mechanism may provide a predefined number of default intrusion analysis approaches, such as signature-based, |
| 7343493 |
Encrypted file system using TCPA |
March 11, 2008 |
| A method for restricting access to an encryption key of an encrypted file system (EFS), whereby access is provided only when a computer system is booted in a trusted state. The EFS encrypts the files within a TPM chip according to TCPA specifications and simultaneously creates the en |
| 7281125 |
Securing sensitive configuration data remotely |
October 9, 2007 |
| A method, computer program product and computer system for securing alterable data. A computer that is remotely managed may be equipped with a protected storage that is accessible only by BIOS code. The protected storage may have the capacity to store a symmetrical encryption key. An |
| 7085933 |
Computer system apparatus and method for improved assurance of authentication |
August 1, 2006 |
| A computer system, method of operation, and program product which gives a clear indication to a user when a computer system has transitioned to a trusted state. |
| 6311270 |
Method and apparatus for securing communication utilizing a security processor |
October 30, 2001 |
| A method is provided for communicating digital content between a content provider and a data processing system which is under the control of a content consumer, utilizing an insecure communication channel, such as the internet. A security processor is provided. The security processor is |
| 6243470 |
Method and apparatus for advanced symmetric key block cipher with variable length key and block |
June 5, 2001 |
| A method and apparatus for an advanced symmetric key cipher for encryption and decryption, using a block cipher algorithm. Different block sizes and key sizes are supported, and a different sub-key is used in each round. Encryption is computed using a variable number of rounds of mixing, |
| 6192129 |
Method and apparatus for advanced byte-oriented symmetric key block cipher with variable length |
February 20, 2001 |
| A method and apparatus for an advanced byte-oriented symmetric key cipher for encryption and decryption, using a block cipher algorithm. Different block sizes and key sizes are supported, and a different sub-key is used in each round. Encryption is computed using a variable number of rou |
| 6189095 |
Symmetric block cipher using multiple stages with modified type-1 and type-3 feistel networks |
February 13, 2001 |
| The present invention provides a technique, system, and computer program for a symmetric key block cipher. This cipher uses multiple stages with a modified Type-3 Feistel network, and a modified Unbalanced Type-1 Feistel network in an expansion box forward function. The cipher allows the |
| 6185679 |
Method and apparatus for a symmetric block cipher using multiple stages with type-1 and type-3 f |
February 6, 2001 |
| The present invention provides a technique, system, and computer program for a symmetric key block cipher. Variable block sizes and key sizes are supported, as well as a variable number of rounds. The cipher uses multiple stages of processing, where the stages have different structures |
| 6185304 |
Method and apparatus for a symmetric block cipher using multiple stages |
February 6, 2001 |
| The present invention provides a technique, system, and computer program for a symmetric key block cipher. Variable block sizes and key sizes are supported, as well as a variable number of rounds. The cipher uses multiple stages of processing, where the stages have different structures |
| 6052469 |
Interoperable cryptographic key recovery system with verification by comparison |
April 18, 2000 |
| A cryptographic key recovery system that is interoperable with existing systems for establishing keys between communicating parties. The sender uses a reversible key inversion function to generate key recovery values P, Q and (optionally) R as a function of a session key and public i |
| 5937066 |
Two-phase cryptographic key recovery system |
August 10, 1999 |
| A cryptographic key recovery system that operates in two phases. In the first phase, the sender establishes a secret value with the receiver. For each key recovery agent, the sender generates a key-generating value as a one-way function of the secret value and encrypts the key-generating |
| 5907618 |
Method and apparatus for verifiably providing key recovery information in a cryptographic system |
May 25, 1999 |
| A method and apparatus for verifiably providing key recovery information to one or more trustees in a cryptographic communication system having a sender and a receiver Each communicating party has its own Diffie-Hellman key pair comprising a secret value and corresponding public value, a |
| 5796830 |
Interoperable cryptographic key recovery system |
August 18, 1998 |
| A cryptographic key recovery system that is interoperable with existing systems for establishing keys between communicating parties. The sender uses a reversible key inversion function to generate key recovery values P, Q and (optionally) R as a function of a session key and public i |
