UMSKT/writeups
1
0
Fork 0
mirror of https://github.com/UMSKT/writeups.git synced 2026-07-24 05:04:19 +02:00
Code Issues Packages Projects Releases Wiki Activity

Update PKEY2005.md

Browse Source
This commit is contained in:
WitherOrNot 2026-05-08 03:30:02 -04:00 committed by GitHub
parent 7f9557e26e
commit f880fb0fe1
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
PKEY2005.md
View File

@ -192,6 +192,8 @@ struct DECODED_PKEY {
Finally, the reference pairing value of $c = e_m(P, S)$ is stored in the public key rather than the points $P$ and $S$, most likely to reduce storage space and computation costs. Finally, the reference pairing value of $c = e_m(P, S)$ is stored in the public key rather than the points $P$ and $S$, most likely to reduce storage space and computation costs.
For Confirmation IDs, much of the details are similar, except $M$ is the Installation ID and $v = H_1(M)$ is its SHA-256 hash with an extra 1 appended at the beginning. Since $M$ is given directly, no tree search is needed. Instead, letting $h$ be the Confirmation ID with all check digits removed, $T = lift_x\left(h \bmod p\right)$. From here, the rest of the validation up until checking the pairing value is the same.
## Practical Generation ## Practical Generation
Although much of the information involved in generating a signature is not provided in public keys, Although much of the information involved in generating a signature is not provided in public keys,