localsha
Localsha is a term used to describe a family of lightweight cryptographic hash functions intended for local computation on resource-constrained devices. The goal is fast integrity checks, content addressing, and lightweight signatures for embedded systems, edge devices, and local networks. Localsha aims to minimize code size and memory usage while providing reasonable security for constrained environments, in contrast to heavier standards such as SHA-2 and SHA-3.
Designs vary, but many localsha proposals use compact, sponge-like constructions or small compression functions with digest
Applications include firmware integrity checks, secure boot on microcontrollers, content-addressable storage in local networks, and lightweight
Security considerations note that each construction's strength depends on its design. Localsha proposals have not endured
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