public bool isChainValid()
{
for (int i = 1; i < this.chain.Count; i++)
{
Block currentBlock = this.chain[i];
Block previousBlock = this.chain[i - 1];
//Compare the two hashes for verification
if (currentBlock.hash.Length == currentBlock.calculateHash().Length)
{
for (int ii = 0; ii < currentBlock.hash.Length; ii++)
{
//return false if a value doesn't match
if (currentBlock.hash[ii] != currentBlock.calculateHash()[ii])
{
return(false);
}
}
}
else
{
return(false);
}
//Compare the two hashes for verification
if (currentBlock.previousHash.Length == previousBlock.hash.Length)
{
for (int ii = 0; ii < currentBlock.previousHash.Length; ii++)
{
//return false if a value doesn't match
if (currentBlock.previousHash[ii] != previousBlock.hash[ii])
{
return(false);
}
}
}
else
{
return(false);
}
}
return(true);
}
public void addBlock(Block newBlock)
{
newBlock.previousHash = this.getLatestBlock().hash;
newBlock.hash = newBlock.calculateHash();
this.chain.Add(newBlock);
}
