Abstract: There is provided a secured computer system, comprising a processing and memory unit (PMU) operatively connected to an input peripheral and an output peripheral. The PMU comprises a system memory comprising a protected memory and a shared memory, and a processor operatively coupled to the system memory, the processor including a set of instructions for enabling secure data storage and execution via the protected memory. The PMU further comprises an operating system and a group of modules executable by the operating system, each module in the group of modules having a designated secure region to be executed within the protected memory, the group of modules is configured to create authentication and share the input data securely via the shared memory accessible thereto using a composite key, the composite key generated within the group using data sharing mechanism between the designated secure regions enabled by the set of instructions.

Abstract: There is provided a method of communication among at least two processes miming on the same computer. The method comprises: generating, by at least one process of the at least two processes, a group key usable for encrypting/decrypting a data unit retrieved from/stored to shared access memory, wherein the generating utilizes, at least, a nonce provided by each of the at least two processes, and wherein the nonces are provided as encrypted integrity-protected data according to, at least, a platform-provided hiding function, wherein each process executes in a protected container, the processes are signed by a single signing authority, and the protected container infrastructure enables use of encrypted, integrity-protected data according to a platform-provided hiding function and a platform-provided revealing function; and verifying, by at least one process of the at least two processes, that a data unit read from shared access memory is successfully decrypted using the group key.

Abstract: There is provided a secured computer system, comprising a processing and memory unit (PMU) operatively connected to an input peripheral and an output peripheral. The PMU comprises a system memory comprising a protected memory and a shared memory, and a processor operatively coupled to the system memory, the processor including a set of instructions for enabling secure data storage and execution via the protected memory. The PMU further comprises an operating system and a group of modules executable by the operating system, each module in the group of modules having a designated secure region to be executed within the protected memory, the group of modules is configured to create authentication and share the input data securely via the shared memory accessible thereto using a composite key, the composite key generated within the group using data sharing mechanism between the designated secure regions enabled by the set of instructions.

Abstract: There is provided a method of communication among at least two processes miming on the same computer. The method comprises: generating, by at least one process of the at least two processes, a group key usable for encrypting/decrypting a data unit retrieved from/stored to shared access memory, wherein the generating utilizes, at least, a nonce provided by each of the at least two processes, and wherein the nonces are provided as encrypted integrity-protected data according to, at least, a platform-provided hiding function, wherein each process executes in a protected container, the processes are signed by a single signing authority, and the protected container infrastructure enables use of encrypted, integrity-protected data according to a platform-provided hiding function and a platform-provided revealing function; and verifying, by at least one process of the at least two processes, that a data unit read from shared access memory is successfully decrypted using the group key.

Abstract: The invention provides a process for the preparation of esters [2-[4-[(4-chlorophenyl)phenylmethyl]-1-piperazinyl]ethoxy]acetic acid, of the formula (I) ##STR1## wherein X represents a halogen atom and R represents a lower alkyl group comprising reacting:(a) a compound of the formula (II) ##STR2## (b) a compound of the formula (III) ##STR3## and (c) a tertiary amine as a solvent and as an acid scavengerat a temperature of at least 100.degree. C., wherein X is a halogen atom, X' is selected from the group consisting of bromine and chlorine and R is a lower alkyl group.

Abstract: The invention provides a process for the purification and isolation of (RR,SS)-2-dimethylaminomethyl-1-(3-methoxyphenyl)cyclohexanol from mixtures also containing the (RS,SR) isomer comprising reacting the above mixture in a solvent at elevated temperature under acidic conditions, whereby the (RS,SR) isomer is selectively converted to the (RR,SS) isomer, 1-(3-methoxyphenyl)-2-dimethylaminomethylcyclohex-6-ene, 1-(3-methoxyphenyl)-2-dimethyl-aminomethylcyclohex-1-ene or a mixture thereof, selectively precipitating the desired (RR,SS) isomer as an amine acid salt, and recrystallizing the purified product.