Public-key cryptography is also called asymmetric cryptography because different keys are used to encrypt and decrypt the data. A well-known public key cryptographic algorithm often used with SSL is the Rivest Shamir Adleman (RSA) algorithm. Another public key algorithm used with SSL that is designed specifically for secret key exchange is the Diffie-Hellman (DH) algorithm. Public-key cryptography requires extensive computations, making it very slow. It is therefore typically used only for encrypting small pieces of data, such as secret keys, rather than for the bulk of encrypted data communications.
Sometimes you may be asked to include these -- especially if you have used a parenthetical style of citation. A "works cited" page is a list of all the works from which you have borrowed material. Your reader may find this more convenient than footnotes or endnotes because he or she will not have to wade through all of the comments and other information in order to see the sources from which you drew your material. A "works consulted" page is a complement to a "works cited" page, listing all of the works you used, whether they were useful or not.
Typographical devices such as the asterisk (*) or dagger (†) may also be used to point to footnotes; the traditional order of these symbols in English is * , † , ‡ , § , ‖ , ¶ .  Historically, ☞ was also at the end of this list.  In documents like timetables , many different symbols, as well as letters and numbers, may be used to refer the reader to particular notes. In John Bach McMaster 's multi-volume History of the People of the United States the sequence runs *, †, ‡, # (instead of §), ‖, Δ (instead of ¶), ◊ , ↓ , ↕, ↑.