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Autor: Amir Taaki
Fecha:  
A: libbitcoin
Asunto: Re: [Libbitcoin] Replacing remaining OpenSSL-dependant big_number use in libbitcoin
We could also do that.

Here are some unit tests we could copy:

https://github.com/bitcoin/bitcoin/blob/master/src/test/uint256_tests.cpp

On 13/05/14 11:50, Eric Voskuil wrote:
> Why not use GMP (which we already have as a dependency via secp256k1)?
>
> e
>
> On 05/13/2014 02:19 AM, Amir Taaki wrote:
>> We want to replace the remaining usage of big_number which is used in a
>> few places for calculating work (comparisons, basic arithmetic).
>>
>> I'm thinking to copy uint256.h over from bitcoind:
>>
>> https://github.com/bitcoin/bitcoin/blob/master/src/uint256.h
>>
>> to include/bitcoin/utility/external/
>>
>> and then make a custom wrapper in include/bitcoin/utility/
>> which implements a subset of that class which we require.
>>
>> Probably called 'hash_number' which is a descriptive name of this class.
>> Another possibility is pow_number (pow = proof of work, not prisoner...)
>> Or even proof_of_work_number?
>>
>> #include <bitcoin/utility/hash_number.hpp>
>>
>> Then after it's a few small steps to remove elliptic_curve_key,
>>
>>
>>
>>
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>