County of Union, New Jersey. Although the issuance of passports is done by the federal passport agency, the County Clerkâs Passport Office, acting as an agent, is available to assist in the preparation of the application which, in turn, is forwarded to the State Department.
A problem with asymmetric encryption, however, is that it is slower than symmetric encryption. It requires far more processing power to both encrypt and decrypt the content of the message. To use asymmetric encryption, there must be a way for people to discover other public keys.
The two keys are different but complementary in function. Information that is encrypted with the public key can be decrypted only with the corresponding private key of the set. Figure 14.2 shows basic encryption and decryption with asymmetric keys.