Bleichenbacherstyle
Bleichenbacherstyle refers to a class of cryptographic attacks that exploit weaknesses in padding schemes used in public-key encryption, particularly RSA with PKCS#1 v1.5 padding. These attacks were first described by Daniel Bleichenbacher in 1998. The core principle involves observing how a server responds to malformed ciphertexts. Specifically, if a server reveals whether the decrypted plaintext has valid padding, an attacker can leverage this information to gradually deduce parts of the original plaintext.
The attack typically proceeds by sending slightly modified ciphertexts to the server and observing the server's
The vulnerability lies not in the underlying RSA algorithm itself, but in the way PKCS#1 v1.5 padding