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Pull in code for BLAKE2b hash function #9

Merged
merged 5 commits into from
Jul 2, 2019
Merged

Pull in code for BLAKE2b hash function #9

merged 5 commits into from
Jul 2, 2019

Commits on Jul 1, 2019

  1. Pulled in Blake2B checksum code from golang.org/x/crypto 

    The code and test vectors of Blake2B checksum have been pulled in to
this library. It will allow us to define precompiles for Blake2b
checksums, if needed. Additionally, we can now test against vectors from
RFC instead of autogenerating vectors just for F.

I have also modified F implementation removing the loop over block
content. According to the RFC, this loop is not a part of F function -
see `blake2b_update` C function in the RFC for reference.
    @pdyraga
    pdyraga committed Jul 1, 2019
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  2. Reduced number of F function test vectors 

    All our test vectors for F functions are autogenerated. Since we now
test entire checksum, we do not need so many test vectors just for F
function.

I left less than 20 test vectors, from which we'll generate go-ethereum
test cases for F precompile.
    @pdyraga
    pdyraga committed Jul 1, 2019
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  3. Code allowing to transform F test vector into F precompile test vector

    @pdyraga
    pdyraga committed Jul 1, 2019
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  4. F function code moved to compression package 

    This will let us to import only F code from projects that require only F
compression function and use govendor to manage dependencies (hello,
go-ethereum!)
    @pdyraga
    pdyraga committed Jul 1, 2019
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  5. Ethereum precompile accepts rounds parameter as the first one

    @pdyraga
    pdyraga committed Jul 1, 2019
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