What type of attack focuses on exploiting weaknesses in the implementation of a cryptography system?

The correct answer focuses on exploitation methods that specifically target the weaknesses found in the actual coding and integration of cryptographic algorithms rather than the algorithms themselves. In the context of cryptography, implementation attacks seek to discover vulnerabilities in how cryptographic protocols are executed in software or hardware.

These types of attacks may exploit flaws such as side-channel leaks, timing attacks, or weaknesses in key management practices, which can often provide attackers with the means to bypass security measures without needing to break the underlying cryptographic algorithms themselves.

In contrast, other options do not address weaknesses in the implementation of cryptographic systems. Social engineering attacks involve manipulating individuals to gain confidential information, while DDoS (Distributed Denial of Service) attacks aim to overwhelm a network service. Cipher attacks generally refer to methods that seek to break the cipher or retrieve the plaintext from the ciphertext, rather than targeting the implementation directly.