Difference between revisions of "3DES"

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'''3DES''' or '''Triple DES''' is a block cipher formed by using the Data Encryption Standard ([[DES]]) cipher three times.
 
'''3DES''' or '''Triple DES''' is a block cipher formed by using the Data Encryption Standard ([[DES]]) cipher three times.
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3DES is typically implemented as ENCRYPT(block,K1), DECRYPT(block,K2), ENCRYPT(block,K3). This way, if you set K1==K2 it's backwards compatible with single-key DES with K3. It's pretty cool, but perhaps less useful today than it was when 3DES was first brought out.
  
 
== External Links ==  
 
== External Links ==  

Latest revision as of 22:52, 18 October 2008

3DES or Triple DES is a block cipher formed by using the Data Encryption Standard (DES) cipher three times.

3DES is typically implemented as ENCRYPT(block,K1), DECRYPT(block,K2), ENCRYPT(block,K3). This way, if you set K1==K2 it's backwards compatible with single-key DES with K3. It's pretty cool, but perhaps less useful today than it was when 3DES was first brought out.

External Links