Given the task definition and input, reply with output. In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

In cryptography , Triple DES is a block cipher created from the Data Encryption Standard ( DES ) cipher by using it three times .

In cryptography , Triple DES ( 3DES or TDES ) , officially the Triple Data Encryption Algorithm ( TDEA or Triple DEA ) , is a symmetric-key block cipher , which applies the DES cipher algorithm three times to each data block .