Patent
Soft logic cryptographic circuit
Ezzat A. Dabbish
- 18 Jun 1990
12
TL;DR: A soft logic cryptographic circuit (10) that can be reprogrammed with various cipher algorithms can be found in this article, where the main purpose is to provide a means for storing and executing a cipher algorithm and for storing digital information.
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Abstract: A soft logic cryptographic circuit (10) that can be reprogrammed with various cipher algorithms. The cryptographic circuit is comprised of at least one cryptographic core device (100, 101), comprising means for storing and executing a cipher algorithm and for storing digital information (106-116); reprogrammable supervisory means (102), operably associated with the at least one cryptographic core device (100, 101) for utilizing cipher algorithm storage instructions to control the storing of the cipher algorithm in the at least one cryptographic core device (100, 101) and for utilizing cipher algorithm execution instructions to control the execution of the cipher algorithm by the at least one cryptographic core device (10); and, input/output means (103), operably coupled to the at least one cryptographic core device (100, 101) and the reprogrammable supervisory means (102) for utilizing digital information storage instructions to control the storing of the digital information of the at least one cryptographic core device (100, 101) and for providing digital communication paths (104) from the cryptographic circuit (10).
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Citations
Patent
Method and system for improving robustness of secure messaging in a mobile communications network
Ilario Macchi
- 22 Jul 2004
TL;DR: In this article, the authors proposed an end-to-end security message exchange protocol in a mobile communications network, which allows a message sender and at least one message receiver to exchange messages encrypted by means of a cryptographic process performed by the message sender, so as to obtain an encrypted message that can be decrypted by a corresponding cryptographic process by the intended message receiver.
32
Patent
Encrypting/decrypting system with programmable logic device/unit and method thereof
Hironobu Kitajima,Shunsuke Fueki +1 more
- 11 Mar 1997
TL;DR: In this article, a mapping data object that represents the structure of the circuit is generated, which is then written to a programmable logic device/unit for an encrypting/decrypting circuit.
32
Patent
Update System for Cipher System
Motoji Ohmori,Natsume Matsuzaki,Toshihisa Nakano +2 more
- 08 Mar 2005
TL;DR: In this paper, the authors present an information security device having a plurality of encryption schemes and handling information safely and reliably, characterized by selecting one of the plurality as an application encryption scheme and installing a different encryption scheme from the plurality based on the application scheme.
26
Patent
Digital radio with vocoding encrypting codec
Daniel I. Schwed
- 09 Aug 1995
TL;DR: In this paper, a new digital radio includes codec, vocoder and encryption/decryption processing all on a single integrated circuit chip module, and a special synchronization scheme is provided to synchronize the transceiver modem rate with the speech processing rate.
20
Patent
Hardware architecture for a configurable cipher device
Kevin Loughran
- 22 Oct 1998
TL;DR: A cipher device that can be configured to execute different types of cryptographic algorithms and perform more than one algorithm simultaneously is presented in this paper, which is operated from an external source and is implemented with a hardware architecture which exhibits the efficiency of conventional hardware based cipher devices as well as the flexibility of software based solutions.
12
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