Add x86 support for blstrs

[spylogsster]

We are working on Filecoin integration to the Brave Wallet and we need support for x86 versions for blstrs

[dignifiedquire]

I am afraid that will not be possible, given that the underlying library blst does not support 32bit architectures. See https://github.com/supranational/blst#platform-and-language-compatibility.

What you can do is use https://docs.rs/bls12_381/ which is API compatible, and is being used as an alternative backend in https://github.com/filecoin-project/bls-signatures, which works well for different enviroments.

[spylogsster]

Thank you for the response, that library says that This implementation has not been reviewed or audited. Use at your own risk. are you sure we can use it @dignifiedquire ?

[dot-asm]

blst does not support 32bit architectures.

While it's true that 32-bit platforms are not explicitly listed, blst does run on [a] plethora or of unlisted platforms. There even were reports from Rust on wasm users.

[dignifiedquire]

@dot-asm alright, I guess I'll try and see what I can get working

[dignifiedquire]

Looks like we might be able to support 32bit after all: #30