Tiny Embedded Cryptography
That Actually Fits

1,456 bytes. Zero compromises. SHA-3 for ARM Cortex-M0 and up.

View Nano-SHA3 → Request Free Evaluation
✓ 237/237 NIST test vectors validated
✓ Constant-time verified on Intel x64 & ARM
✓ Free 90-day evaluation available
✓ MIT-licensed validation tools

Purpose-Built, Not Ported

Unlike bloated crypto libraries requiring 10KB+ flash, CoreLathe builds single-algorithm implementations optimized for the smallest microcontrollers. Every solution undergoes comprehensive testing across multiple architectures, ensuring reliable deployment in production environments where code size equals cost.

From cryptographic primitives to system utilities, we prioritize minimal memory footprint, deterministic performance, and rigorous validation. Trusted by embedded engineers who demand both performance and reliability in safety-critical applications.

Featured Solutions

Nano-SHA3
Cryptographic Hash Function
Free Eval

Ultra-compact SHA-3 implementation optimized for ARM Cortex-M microcontrollers. Validated against all 237 NIST test vectors with constant-time execution and zero heap allocation.

1,456 B
Flash Size
≤384 B
Stack Usage
237/237
NIST Vectors
0 B
Heap Usage
ARM Cortex-M0/M4/M33 Constant-Time no_std C-Compatible
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