I'm wondering about different types of ciphers and their security. Specifically, I want to know which cipher is considered to be unbreakable. I'm looking for a cipher that, when used correctly, cannot be decrypted by unauthorized individuals.
            
            
            
            
            
            
           
          
          
            5 answers
            
            
  
    
    lucas_emma_entrepreneur
    Thu Nov 21 2024
   
  
    A Vigenère cipher can achieve a high level of security when used with a specific type of key.
  
  
 
            
            
  
    
    CryptoNinja
    Thu Nov 21 2024
   
  
    This key must be completely random and non-reusable.
  
  
 
            
            
  
    
    DaeguDivaDance
    Thu Nov 21 2024
   
  
    The length of the key should be equal to the length of the message.
  
  
 
            
            
  
    
    Chiara
    Thu Nov 21 2024
   
  
    When these conditions are met, the Vigenère cipher transforms into a one-time pad.
  
  
 
            
            
  
    
    Sara
    Wed Nov 20 2024
   
  
    A one-time pad is considered a theoretically unbreakable cipher.