public string calculateBlockHash(string previousBlockHash)
{
string blockHeaderHash = BlockNumber + BlockCreationDate.ToString() + previousBlockHash;
string finalBlockHash = merkleTreeObj.RootNode + blockHeaderHash;
return(Convert.ToBase64String(HashData.ComputeHashSha256(Encoding.UTF8.GetBytes(finalBlockHash))));
}
/*Calculate the hash of block which is combination of song details and block details.*/
public string calculateBlockHash(string blockHashToCompute)
{
string songDetailString = null;
string blockHashString = null;
songDetailString = SongNumber + SongName + AlbumName + ArtistOrBand + PublicationLabel + OwnershipPercentagePerBandMember + BlockCreationDate;
blockHashString = BlockNumber + BlockCreationDate.ToString() + blockHashToCompute;
return(Convert.ToBase64String(HashData.ComputeHashSha256(Encoding.UTF8.GetBytes(songDetailString + blockHashString))));
}
public string calculateBlockHash(string previousBlockHash)
{
string blockHeaderHash = BlockNumber + BlockCreationDate.ToString() + previousBlockHash;
string combinedBlockHash = merkleTreeObj.RootNode + blockHeaderHash;
string completeBlockHash;
if (KeyStore == null)
{
completeBlockHash = Convert.ToBase64String(HashData.ComputeHashSha256(Encoding.UTF8.GetBytes(combinedBlockHash)));
}
else
{
completeBlockHash = Convert.ToBase64String(Hmac.ComputeHmacsha256(Encoding.UTF8.GetBytes(combinedBlockHash), KeyStore.AuthenticatedHashKey));
}
return(completeBlockHash);
}