bignum.h File Reference

2048-bit big-integer arithmetic for DH-group14 and RSA-2048. More...

#include "protocore_config.h"

Go to the source code of this file.

Detailed Description

2048-bit big-integer arithmetic for DH-group14 and RSA-2048.

A protocore_bignum is a fixed-width 2048-bit unsigned integer held as 64 little-endian 32-bit limbs, so its size is the compile-time constant 256 and a DH scalar and an RSA key fragment are the same type. The entries below read big-endian bytes in and write them back out, order two values, test one for zero, check a received DH public value against RFC 4253 §8, and run the group-14 modular exponentiation on whichever backend the vendor linked.

Author

Douglas Quigg (dstroy0)

Date

2026

Definition in file bignum.h.