fc::equihash Namespace Reference

Classes
struct	proof

Functions
_POW::Seed	sha_to_seed (sha256 seed)

Function Documentation

sha_to_seed()

_POW::Seed fc::equihash::sha_to_seed

(

sha256

seed

)

Definition at line 9 of file equihash.cpp.

   {
      _POW::Seed new_seed;
 
      // Seed is 128 bits. Half of sha256 to create seed. Should still have enough randomness
      new_seed.v[0] =  (unsigned int)  seed._hash[0];
      new_seed.v[0] ^= (unsigned int)  seed._hash[2];
      new_seed.v[1] =  (unsigned int)( seed._hash[0] >> 32 );
      new_seed.v[1] ^= (unsigned int)( seed._hash[2] >> 32 );
      new_seed.v[2] =  (unsigned int)  seed._hash[1];
      new_seed.v[2] ^= (unsigned int)  seed._hash[3];
      new_seed.v[3] =  (unsigned int)( seed._hash[1] >> 32 );
      new_seed.v[3] ^= (unsigned int)( seed._hash[3] >> 32 );
 
      return new_seed;
   }

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