Abstract: Method including receiving first and second identification data relative to data blocks to be transmitted via data bus between processor and system memory. Listening data transmitted via data bus to detect block data corresponding to the first or second identification data; storing in a first location of temporary storage a first data block transmitted via bus and corresponding to first identification data; storing in a second location of temporary storage a second data block transmitted via bus and corresponding to the second identification data. The storing of the first and second data blocks being performed without disturbing transfer of the first and second data blocks via data bus. When the first and/or second data blocks are stored in the temporary storage activating their respective signature calculator connected to the location of the temporary storage to compute a signature of the data block, and storing the signature in a result memory.

Abstract: Method including receiving first and second identification data relative to data blocks to be transmitted via data bus between processor and system memory. Listening data transmitted via data bus to detect block data corresponding to the first or second identification data; storing in a first location of temporary storage a first data block transmitted via bus and corresponding to first identification data; storing in a second location of temporary storage a second data block transmitted via bus and corresponding to the second identification data. The storing of the first and second data blocks being performed without disturbing transfer of the first and second data blocks via data bus. When the first and/or second data blocks are stored in the temporary storage activating their respective signature calculator connected to the location of the temporary storage to compute a signature of the data block, and storing the signature in a result memory.