Timeline for Is there an economic way to check if an elliptic curve point in Jacobian coordiate is the same as a compressed point
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 27, 2022 at 13:38 | history | edited | Maarten Bodewes♦ | CC BY-SA 4.0 | eliptic -> elliptic |
| May 18, 2017 at 5:47 | vote | accept | deadalnix | ||
| Mar 23, 2017 at 11:53 | history | tweeted | twitter.com/StackCrypto/status/844879721494122496 | ||
| Mar 20, 2017 at 20:33 | comment | added | deadalnix | Yes, for malleability reasons. However, indeed, I check the y only if the x do match, which avoids the need for inversion for invalid signatures. | |
| Mar 20, 2017 at 18:56 | answer | added | Meysam Ghahramani | timeline score: 2 | |
| Mar 20, 2017 at 18:36 | comment | added | poncho♦ | Obvious question: are you sure you need to check the $y$ coordinate? For some protocols (e.g. ECDH, where the shared secret consists of only the $x$ coordinate), which $y$ coordinate you use literally does not matter. Of course, for other protocols, which $y$ coordinate you use is essential, and so your answer might be "yes, I'm sure..." | |
| Mar 20, 2017 at 18:28 | review | First posts | |||
| Mar 20, 2017 at 18:43 | |||||
| Mar 20, 2017 at 18:27 | history | asked | deadalnix | CC BY-SA 3.0 |