generator problems

[antiochp]

The following is called in the various range proof functions -

secp256k1_generator_load(&genp, gen);

We're not passing in gen from Grin (via rust-secp256k1-zkp) and it is not clear to me what we need to be doing here.

[antiochp]

Actually looks like the code relies on gen as input param in these functions -

• secp256k1_pedersen_commit
• secp256k1_rangeproof_verify
• secp256k1_rangeproof_rewind
• secp256k1_rangeproof_sign

And from the comments in include/secp256k1_rangeproof.h -

 gen:        additional generator 'h'

[antiochp]

This (I believe) is fixed - we pass in a gen via grin code now.