objective c - Encryption of session in MultipeerConnectivity framework for iOS -


I am working on the iOS Multipurpose Framework and am very happy with it. I am sharing some synergy data, so encryption has to be done. When we create session we have three options: 

  self.session = [[MCSession alloc] initWithPeer: self.myPeerID securityIdentity: zero encryptionPreference: MCEncryptionRequired];   
     
  1.   MCEncryptionNone   
  2.   MCEncryptionOptional   
  3.  
      MCEncryptionRequired   
     I've read the Apple Guide but could not find any more information about it if I pass through  MCEncryptionRequired  Does anyone know what this is? Kind of encryption? Thank you.     
     
     
     Alban DeWat analyzed the structure of the structure. From page 58:  
      with MCEncryptionRequired authentication : a ?? ¨  
       
    •  DTLS with mutual authentication:  
    •  Each colleague sends his certificate and validates the other party's certificate  
    •  RSA & Amp; EC-DSA TLS Cipher Suite  
    •  Suitable for a total of 30 cipher PFS cipher suites.  
    •  In practice, TLS_RSA_WITH_AES_256_CBC_SHA256 is always done through negotiation, which does not account ???? T PFS   
       with page 61:  
        without MCEncryptionRequired authentication : a ?? ¨  
         
      •  DTLS cipher suit with Anonymous TLS has not been issued  
      •  A "AES Tls Cipher Suite: 
           
        •  TLS_ DH_anon_WITH_AES_128_CBC_SHA,  
        •  TLS_ DH_anon_WITH_AES_256_CBC_SHA,  
        •  TLS_DH_anon_WITH_AES_128_CBC_SHA256,  
        •  TLS_DH_anon_WITH_AES_256_CBC_SHA256

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