Mojo-V: Secret Computation for RISC-V
Автор: Todd Austin
Загружено: 2025-10-03
Просмотров: 476
Mojo-V is a new RISC-V extension that introduces secret computation, enabling secure, efficient, and data-oblivious execution without reliance on fragile software and programmer trust. By sequestering sensitive data in dedicated secret registers and encrypting memory under a third-party key, Mojo-V prevents disclosures and enforces computation that is both blind (no direct disclosures) and silent (no side channel leakage). The design integrates seamlessly into the existing RISC-V ISA with only a mode bit and two new instructions, enforced entirely at decode. Early results show near-native execution speeds while offering over 5-7 orders of magnitude performance improvement compared to fully homomorphic encryption (FHE), with a clear roadmap for integration into CPUs, GPUs, and specialized accelerators.
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