What are the cipher padding strings in java

Roy Hinkley picture Roy Hinkley · Jun 7, 2012 · Viewed 58.9k times · Source

Everyone talks about the padding schemes in ciphers but what are the actual strings one needs to pass in to the cipher? I don't care if they are symmetric or asymmetric, I just want a list of the possible values.

Answer

Sani Singh Huttunen picture Sani Singh Huttunen · Jun 7, 2012

There are many types of padding, PKCS-7, Zero, ISO 10126, ANSI X.923, etc.
I suggest you read up on padding since you seem not to fully understand the concept.

Then there's the possibility you are referring to cryptographic salt.

Edit
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)

You can find a list here.

Edit 2
You can find the Bouncy Castle specification here. It lists all available padding schemes.