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1 definition found
 for private-key cryptography
From The Free On-line Dictionary of Computing (30 December 2018) :

  private-key cryptography
  
      As opposed to public-key cryptography, a
     cryptographic method in which the same key is used to encrypt
     and decrypt the message.  Private-key algorithms include the
     obsolescent Data Encryption Standard (DES), triple-DES
     (3DES), the Advanced Encryption Standard (AES), also known
     as Rijndael, Blowfish, Twofish RC2, RC4, RC5 and RC6.
  
     A problem with private-key cryptography is that the sender and
     the recipient of the message must agree on a common key via
     some alternative secure channel.
  
     Public-key cryptography gives an answer to this problem.
  
     (2008-02-07)
  

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