Timeline for ECIES with AES-GCM
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 10, 2020 at 19:12 | comment | added | poncho | @jvdh: well, you do need a KDF (that's part of the definition of ECIES); as for a MAC, GCM already provides that functionality. | |
| Dec 10, 2020 at 16:14 | comment | added | jvdh | That you don't need a MAC and KDF when using ECIES with AES in GCM mode | |
| Dec 10, 2020 at 13:13 | comment | added | poncho | @jvdh: I'm not sure what source you want, but first, what are you asking about? That ECIES doesn't repeat keys if you don't reuse the same ephemeral? Or, if GCM is safe to use with fixed nonces if you never repeat keys? | |
| Dec 10, 2020 at 8:44 | comment | added | jvdh | @poncho If there is, could you give a quotable source? That would be very helpful. | |
| Mar 19, 2018 at 19:42 | comment | added | poncho | @JonathanS.Fisher: it is precisely because you never use the same GCM key twice, which is true if you never use the same ECIES ephemeral twice. | |
| Mar 19, 2018 at 19:36 | comment | added | Jonathan S. Fisher | Can you elaborate on why the nonce could be fixed, eg: all 1's? Is this because the ephemeral is never used twice? | |
| Feb 18, 2015 at 16:42 | vote | accept | User | ||
| Feb 17, 2015 at 17:53 | history | answered | poncho | CC BY-SA 3.0 |