These instruction sets were designed to prevent "cache attacks" and so far have withstood attacks. Thus, AES operations only (when run inside AES-NI) seem to be safe.
The only cryptographic operations that seem to be safe inside Intel CPU are AES encryption and decryption using AES-NI hardware-based instructions only.
However, attack space is constantly moving, and puts LR-PUFs such as Recyclable PUF and Memory-based PUF currently in the cat-and-mouse zone for key protection, where the security gurantees are not sufficent. Hence, ReEncryption Keychain for enhancing the PUF as mathematically uncloanable is coming. Atomic PUF with Trillions of Entropy is also coming.
ReEncryption allows us to integrate PUF in Hardware Entangled Cryptography that is closely related to Provably Physical Security and that is instantiated (Fig. 6B) as Leakage Resilient Cryptography e.g., High Speed ASIC Imlementations or GGM constructions.
Consequently, ReEncryption allows us to download and upload code and data, and receive both of decryption key and re-encryption key as a keychain from centralized key center or decentralized blockchain full nodes or distributed p2p lightweight nodes.
On the other hand, post-quantum cryptography is coming and can be deployed strategically as pre-quantum into ReEncryption-Secure CPU.
Silicon Level-based Protection against meltdown and spectre is expected to ship in second half of 2018, meaning that "Xeon Scalable Processors and 8th Generation iCore Processors" called ReEncryption-Secure CPU could built in AES-NI, PUF, Post-Quantum-NI, and FPGA.
Moreover, Academic Recommendation allows us to combine ReEncryption Secure OS-based CIPRESS by Fraunhofer Institute Germany with Blockchain technology into ReEncryption Secure CPU with FPGA-based CIPRESS that relies on pre/post-quantum such as Niederreiter Goppa Codes and KINDI to react to "technical changes" against new forms of attacks.
The new project called ReEncryption-as-a-Service allows us to combine a centralized network with Blockchain technology into a decentralized (i.e., distributed) network.
Finally, we sent the following two emails to Intel and Mitsubishi on May 30 and 31, 2018.
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