The purpose of context structures is to cache large precomputed data tables
that are expensive to construct, and also to maintain the randomization data
for blinding.
You can create a context with only VERIFY or only SIGN capabilities, or you
can use BOTH. (NONE can be used for conversion/serialization.)
Flag to pass to a Secp256k1.contextCreate method.
The purpose of context structures is to cache large precomputed data tables that are expensive to construct, and also to maintain the randomization data for blinding.
You can create a context with only VERIFY or only SIGN capabilities, or you can use BOTH. (NONE can be used for conversion/serialization.)