Abstract: This specification provides a key management method and a related device, which are applied to security hardware. The method includes: preventing, in response to a start instruction for the electronic device, the CPU from being started, and encrypting a second key corresponding to the security hardware by using the stored first key; sending an encrypted second key to the storage medium, so that the storage medium decrypts the encrypted second key by using the first key, and stores a decrypted second key, where the second key is stored in volatile storage space of the storage medium, and the second key is used to encrypt data when the data is written into the storage medium, and decrypt data when the data is read; and controlling, in response to that the storage medium successfully stores the second key, the CPU to be started.

Abstract: Embodiments of this specification disclose computing devices and methods for constructing a trusted chain of a computing device, and relate to the field of information security technologies. The method includes following: A trusted module located on the computing device is started; the trusted module measures a CRTM of a processor on the computing device, and stores a measurement result in the trusted module; and when the CRTM is executed by the processor, a next level of code of the CRTM is measured, and a measurement result is stored in the trusted module; and when the next level of code of the CRTM is executed by the processor, a next level of code is measured, and a measurement result is stored in the trusted module, where by analogy, next levels of code is measured layer by layer to complete trusted chain establishment for the computing device.

Abstract: A node includes a first secure and trusted execution environment with a built-in first security certificate, a second secure and trusted execution environment with a built-in second security certificate, a trusted measurement agent, and a TPCM located in the first secure and trusted execution environment. In a method, after a measurement request is initiated, the first secure and trusted execution environment signs the measurement request by using a private key of the first security certificate to obtain a measurement request data packet including a signature; and the second secure and trusted execution environment performs signature verification on the measurement request data packet by using a public key of the first security certificate, obtains measurement data of a target protection object after the signature verification succeeds, signs the measurement data to obtain a measurement data packet including a signature.

Abstract: Curable pressure sensitive adhesive tapes comprise: a) a pressure sensitive adhesive polymer; b) particles of encapsulated first epoxy resin (microcapsules) mixed into the pressure sensitive adhesive polymer; and c) a first epoxy curative. In some embodiments, the first epoxy curative is blended into the pressure sensitive adhesive. In other embodiments, the first epoxy curative is the pressure sensitive adhesive polymer. In some embodiments, the first epoxy curative may be an adduct of a second epoxy curative and a second epoxy resin in a ratio of at least 2:1 second epoxy curative to second epoxy resin. The particles of encapsulated first epoxy resin comprise a core of first epoxy resin within a shell comprising an organic polymer, and optionally a layer of oil-in-water Pickering emulsifier particles borne on a surface of the shells. Typically, the tape may be cured to form a structural bond between adherends.

Abstract: A heating tape comprises an insulated heating element that includes a heating element layer comprising a polymer composite having conductive particles and at least one set of conductive electrodes at least partially embedded in the polymer composite and extending along at least a substantial portion of the length of the heating tape. A heating tape system for a pipe or other surface, further includes a power ramp controller having a solid state relay component to regulate an in-rush of current to the heating element. The heating tape system also includes a connector having multiple contact points.

Abstract: A heating tape comprises an insulated heating element that includes a heating element layer comprising a polymer composite having conductive particles and at least one set of conductive electrodes at least partially embedded in the polymer composite and extending along at least a substantial portion of the length of the heating tape. A heating tape system for a pipe or other surface, further includes a power ramp controller having a solid state relay component to regulate an in-rush of current to the heating element. The heating tape system also includes a connector having multiple contact points.