Which term is used to describe a public-key, cryptography-based mechanism for proving the source (and possibly integrity) of a dataset or message?

A. Trusted third party
B. Symmetric cryptography
C. Algorithm
D. Digital signature

The database design steps are listed below in the incorrect order. choose the correct order number next to each step. determine the information to be stored in the database. determine the fields needed to record the data determine if there will be any repetition of data entered, and separate the fields into tables to normalize the data. create relationships to connect the tables.