github/std-curves
1
1
Fork 0
mirror of https://github.com/J08nY/std-curves.git synced 2026-01-12 06:38:19 -05:00
Code Issues 2 Packages Projects Releases Wiki Activity

Extra nibble on curve P521? #9

New Issue
Closed
opened 2025-07-08 08:33:58 -04:00 by AtHeartEngineer · 0 comments
AtHeartEngineer commented 2025-07-08 08:33:58 -04:00
Owner
Copy Link

Originally created by @zugzwang on 3/28/2022

On the NIST P-521 entry, p should be 2^521 - 1. However I see

0x01ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff

and I count 131 f nibbles. Shouldn't it be 130 f nibbles (e.g., 521 = 130 * 4 + 1)?

Edit: Same for the order.

*Originally created by @zugzwang on 3/28/2022* On the NIST P-521 entry, `p` should be `2^521 - 1`. However I see `0x01ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff` and I count 131 `f` nibbles. Shouldn't it be 130 `f` nibbles (e.g., 521 = 130 * 4 + 1)? Edit: Same for the order.
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
bug
enhancement
good first issue
hacktoberfest-accepted
hacktoberfest-accepted
hacktoberfest-accepted
hacktoberfest-accepted
hacktoberfest-accepted
hacktoberfest-accepted
hacktoberfest-accepted
hacktoberfest-accepted
hacktoberfest-accepted
hacktoberfest-accepted
hacktoberfest-accepted
help wanted
help wanted
No Label
Milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
AtHeartEngineer
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: github/std-curves#9
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?