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I need to know what are the padding modes applicable to Triple DES algorithm , Is AI_PKCS_PADDING a padding mode applicable to Triple DES ?

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2 Answers

up vote 2 down vote accepted

According to Java Cipher API:

Every implementation of the Java platform is required to support the following standard Cipher transformations with the keysizes in parentheses: 


    AES/CBC/NoPadding (128)
    AES/CBC/PKCS5Padding (128)
    AES/ECB/NoPadding (128)
    AES/ECB/PKCS5Padding (128)
    DES/CBC/NoPadding (56)
    DES/CBC/PKCS5Padding (56)
    DES/ECB/NoPadding (56)
    DES/ECB/PKCS5Padding (56)
    DESede/CBC/NoPadding (168)
    DESede/CBC/PKCS5Padding (168)
    DESede/ECB/NoPadding (168)
    DESede/ECB/PKCS5Padding (168)
    RSA/ECB/PKCS1Padding (1024, 2048)
    RSA/ECB/OAEPWithSHA-1AndMGF1Padding (1024, 2048)
    RSA/ECB/OAEPWithSHA-256AndMGF1Padding (1024, 2048)

Hence it should support PKCS5Padding

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Tanx for response, but could you please say what is deference of AES and DES and DESede, Actually I want to send encrypted data to a device which is support standard DES algorithm and I dont know which mode I should use which matches the Standard algorithm implementation (CBC mode) –  Areff May 7 '13 at 10:33
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Regarding which algorithm to use, regular DES is only 56 bit key, so DESede (3DES) should be used over that. AES is a different algoritm and if your device doesnt support that you should not use it :) Regarding modes, CBC mode is the be perfeered over ECB since ECB is not safe. Good description about the different modes can be found at the Wiki page –  John Snow May 7 '13 at 10:57
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Triple DES algorithm Padding modes (...) I dont know which mode I should use (...)

DES Modes of Operation (Triple DES is based on DES):

  • ECB
  • CBC
  • CFB
  • OFB

what is deference of AES and DES and DESede

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