DRS62
ViktYusk opened this issue · comments
Could you please give a source about the method of modular inversion you use in the project? It is DRS62 (delayed right shift 62 bits). I can't find any articles about this method on the internet.
Hi,
Link are in the code.
The one currently used in the Thomas Pornin's method (used with 62 bits instead of 31 in his implementation): https://github.com/pornin/bingcd/blob/main/doc/bingcd.pdf
You can also activate the one used in bitcoin library (implementation by Peter Dettman) all info,papers can be found there bitcoin-core/secp256k1#767.
The Thomas Pornin's method is faster, especially for variable time implementation.
JL