EIP1829 support for 512bit or just 256bit?

[bmann]

From ACD ethereum/pm#95, from @vbuterin

does the precompile for generic EC support 512 bit moduli? 
or just 256?


If 256 that makes it less interesting because it can't support bls 12 381 and hence eth2 light clients

[gumb0]

It says

256-bit modulus. This EIP is for field moduli less than 2^{256}. This covers many of the popular curves while still having all parameters fit in a single EVM word.

TODO: Consider a double-word version. 512 bits would cover all known curves except E-521. In particular it will cover the NIST P-384 curve used by the Estonian e-Identity and the BLS12-381 curve used by ZCash Sappling.

[bmann]

I’m going to consider this closed, track EIP1829 for further progress.