Defining Private Key Versus Public Key Encryption
Encryption techniques can primarily be classified as either symmetric or asymmetric. Symmetric encryption requires that each party in an encryption scheme hold a copy of a private key, which is used to encrypt and decrypt information sent between the two parties. The problem with private key encryption is that the private key must somehow be transmitted to the other party without it being intercepted and used to decrypt the information. In addition, each unique two parties would need a unique key to protect the data. The resulting key management is the main obstacle to implementing private key encryption, which is a must-have technology.
Public key, or asymmetric, encryption uses a combination ...
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