iOS Question Cipher encryption

[alizeti]

Hi,

Does B4i supports cipher counter mode encryption?

Thanks

 

[Erel]

What does "counter mode encryption" mean?

 

[alizeti]

What does "counter mode encryption" mean?

Instead of being a block cipher it's a stream cipher. You don't have to pad if the message is less than the block. You can encrypt any size without having to do padding.

It still use a key and an IV.

 

[OliverA]

It’s just another mode of a block cipher like ECB, CBC, etc. In this case it is CTR. http://www.crypto-it.net/eng/theory/modes-of-block-ciphers.html

 

[Erel]

I see. It is currently not supported.