1.   Encryption techniques are used to verify digital signatures on business contracts.

2.   Several implementations of these popular encryption techniques are currently employed.

3.   A lot of thought went into the security design of these systems, and relatively sophisticated encryption techniques were used to guard against attacks.

4.   The government has generally discouraged the use and export of strong encryption techniques, fearing that they would allow criminals and terrorists to hide illegal activity.

5.   The hijackers did not use encryption techniques, the official said.

6.   They are haunted by the idea that law enforcement agencies may have figured out what the terrorists were planning, if only powerful encryption techniques had been kept secret.

7.   COMPANIES marketing their goods through the Internet are being advised to use data encryption techniques to protect the privacy of their customers.

8.   There are a number of different encryption techniques to guarantee this level of security.