Glossary

3DES See Triple DES.

3DES-EDE2 A triple DES mode in which each block of data is encrypted with the first key, decrypted with the second key, and encrypted again with the first key.

3DES-EDE3 A triple DES mode in which each block of data is encrypted with the first key, decrypted with the second key, and encrypted with the third key.

3DES-EEE2 A triple DES mode in which each block of data is encrypted with the first key, encrypted with the second key, and encrypted again with the first key.

3DES-EEE3 A triple DES mode in which each block of data is encrypted three times, each time with a different key.

3-D Secure An XML-based protocol designed to provide an additional security layer for online credit and debit card transactions.

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