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## atomic-size-attack.md

      
        
          
            
              
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                markblundeberg
                / atomic-size-attack.md
            
            
              Created
              February 16, 2018 05:14
            
              
                Advisory: secret size attack on cross-chain hash lock smart contracts
              
          
        
      
        
  
      
    
Advisory: secret size attack on cross-chain hash lock smart contracts

Dr. Mark B Lundeberg, 2018 Feb 15
bitcoincash:qqy9myvyt7qffgye5a2mn2vn8ry95qm6asy40ptgx2
This security advisory notes a vulnerability in the common construction of
cross-chain smart contracts (contracts between distinct cryptocurrencies)
through hash locking. I focus on the primary use case in [atomic