4280 results about "Plaintext" patented technology

Data is secured in a computer network to transparently establish and manage a separation of user-based communities of interest based upon crypto-graphically separated, need to know, security levels. Data from a source document, data object or data stream is filtered to form subsets of extracted data and remainder data based upon security levels for the communities. Extracts are stored in assigned memories. Full or partial plaintext reconstruction is permitted only in the presence of assigned security clearance for the community of the inquiring party. Encryption, corresponding to security levels, establishes separation of secured data. The information processing system uses a data filter to extract security sensitive words, data objects, etc., a distributed storage system and a compiler is used to reconstruct plaintext based on security clearance. Multiple level encryption in one document is also available.

The method for securing data includes establishing a group of security sensitive items, filtering data and extracting and separating the security items from remainder data. The filtered data are separately stored (locally on a PC or on another computer in a LAN or WAN or on the Internet.) A map may be generated. The filter and / or map may be destroyed or stored. The data input, extracted data and remainder data may be deleted from the originating computer. Encryption may be utilized to enhance security (including transfers of data, filter and map). Reconstruction of the data is permitted only in the presence of a predetermined security clearance. A plurality of security clearances may be used to enable a corresponding plurality of partial, reconstructed views of the plaintext (omitting higher security words). A computer readable medium containing programming instructions and an information processing system is encompassed.

Systems and methods for performing settlement of token access transactions are provided. In one embodiment, the invention provides for batch processing bank card transactions, including receiving transaction records for a plurality of bank card transactions, wherein at least some of the transaction records include encrypted token information; determining whether the transaction records contain encrypted token information; decrypting the encrypted token information for a transaction record that is determined to have encrypted token information; and providing clear text token information obtained by decrypting the encrypted token information for a transaction record for transaction settlement.

Systems and methods for performing a secure transaction provided. In one embodiment, the method includes: reading data on a command token, reading data on a token; encrypting the token data with a key; encrypting an authentication data with a clear text token data; and transmitting the encrypted authentication data with the encrypted token data to a remote device.

Improvements in intrusion detection are disclosed by providing integrated intrusion detection services. Preferably, these services are integrated into a system or server that is the potential target of attack. Stack-based security processing is leveraged for access to cleartext data within the layers of the protocol stack. Layer-specific attacks may therefore be processed efficiently. Evaluation of incoming traffic for an intrusion is preferably performed only after an error condition of some type has been detected. This approach reduces the overhead of intrusion detection by reducing the number of packets to be inspected, and at the same time allows more efficient packet inspection through use of context-specific information that may be used to direct the inspection to particular candidate attacks. Generic attack class capability is also disclosed. Intrusion detection policy information may be used to direct the actions to be taken upon detecting an attack.

The invention relates to a ciphertext cloud storage method and system. In the ciphertext cloud storage method system composed of at least one client terminal and a cloud terminal server, the ciphertext cloud storage method comprises the steps that (1) a user adopts a ciphertext and / or a plaintext to conduct data synchronism on the client terminal in the process of data storage and selects an encryption algorithm for the ciphertext; (2) authentication parameters provided based on the identity of the user is used for generating a master key, synchronous data of the ciphertext are encrypted on the client terminal through two-level keys comprising the master key and an encryption and decryption key, and the master key is backed up; (3) the ciphertext and a ciphertext index are synchronized on the client terminal and a cloud terminal, or a plaintext index is established after synchronous data of the plaintext are synchronized on the cloud terminal and the client terminal; (4) the plaintext and / or ciphertext is / are stored in a local private cloud storage server or in a storage server of a cloud storage provider according to a mount point requested by the user. By the adoption of the ciphertext cloud storage method and system, the data cannot be lost when the terminal is lost, if protection is inappropriate, only the ciphertext form of a file is damaged, and the ciphertext cloud storage system can dock with multiple cloud server providers.

An intercept system provides more effective and more efficient compliance with legal intercept warrants. The intercept system can provide any combination of operations that include near-real-time intercept, capture of intercepted data in structured authenticated form, clear text intercept for communications where there is access to encryption keys, cipher text intercept for communications where there is no access to encryption keys, provision of transactional logs to the authorized agency, interception without altering the operation of the target services, and encryption of stored intercepted information.