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39results about How to "Conservation value" patented technology

Protection against runtime function attacks

Security mechanisms detect and intervene in a malicious attack against a runtime function, even in the presence of a coding flaw such as a buffer overrun or overflow. One such exemplary mechanism uses a predetermined security list of the valid targets for a first runtime function (such as longjmp). For every call to a second runtime function (e.g., setjmp) that prepares for a later invocation of the first runtime function, the dispatcher finds and stores a reference to this list. When a subsequent attack targets the runtime functions by creating an attacker-provided setjmp target address (e.g., the attack overwrites the longjmp target address so that the pointer points somewhere else, such as code provided by the attacker or code that already exists that will eventually pass control to code provided by the attacker), the new (attacker provided) target address is compared to a reference list of the real (valid) target addresses. The list of real target addresses is stored in memory. If the target address that has been provided is found on the reference list, then the runtime function (e.g., longjmp) is allowed to continue to execute by the dispatcher (which may be the actual runtime function). Otherwise, the dispatcher assumes the application is under attack and terminates the process' execution.
Owner:MICROSOFT TECH LICENSING LLC

Method for delaying aging and yellowing of paper and aging and discoloring of dyes and pigments on the paper

The invention discloses a method for delaying aging and yellowing of paper and aging and discoloring of dyes and pigments on the paper. The method includes steps of: directly putting files, books, ancient calligraphies and paintings and other samples to be processed integrally into a closed box body; vacuumizing the box body and then introducing inert gas for pretreatment; and then vacuumizing until the pressure is lower than 10 mmHg, filling mixed gas of inert gas and ethylene oxide to normal pressure, and carrying out gas treatment, so that paper yellowing of files, books, ancient calligraphies and paintings and the like in long-term storage can be delayed, and aging, discoloration and fading of file writing, color printing ink and calligraphy and painting pigments are prevented. The method is easy to operate; an accelerated aging test proves that yellowing and blackening of paper can be effectively delayed after treatment, aging and fading of various archive writings, printing ink and calligraphy and painting pigments are prevented, archives, books and ancient calligraphies and paintings are not deformed, the original appearance is kept, and the mechanical strength of the paperis not affected.
Owner:SHAANXI NORMAL UNIV
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