Padding Oracle Attack

By Rorot

Firstly, this vulnerability is not related to the Oracle database or the Oracle Company in any way. In cryptography, an ‘oracle’ is a system that performs cryptographic actions by taking in certain input. Hence a ‘padding oracle’ is a type of system that takes in encrypted data from the user, decrypts it and verifies whether the padding is correct or not. Before getting into the attack details, the below sections throws light on some of the basic concepts that the user needs to be familiar with in order to understand the exploitation.

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