Cryptanalysis attacks can be categorized according to various criteria. This chapter aims at introducing some common methods used to attack symmetric ciphers, namely: memory‐time trade‐off attacks, ...

The ransomware incident was discovered on January 31, 2025. Tata Technologies did not disclose whether a ransom was demanded ...

采用 PKCS5 Padding 的加密算法。 当然，非对称加密中 OAEP 的填充方式也有可能会受到影响。 分组模式为 CBC 模式。 攻击者可以拦截上述加密算法加密的消息。 攻击者可以和 padding oracle（即服务器） 进行交互：客户端向服务器端发送密文，服务器端会以某种返回 ...

Block Cipher,Round Function,Differential Attacks,Linear Approximation,Time Complexity,Boolean Function,Finite Field,Mixed Integer Linear Programming,Random ...

In 1854, Sir Charles Wheatstone invented the cipher known as "Playfair," named for his friend Lyon Playfair, first Baron Playfair of St. Andrews, who popularized and promoted the cipher.

PROVIDENCE, R.I. (WPRI) — An international ransomware group that has previously targeted government agencies in Indonesia and France is taking responsibility for the major cyberattack that has ...

The Brain Cipher ransomware gang has begun to leak documents stolen in an attack on Rhode Island's "RIBridges" social services platform. RIBridges is an integrated eligibility system (IES ...

Former National Intelligence Manager for Iran at ODNI Norm Roule parses the opportunities and challenges in a today's Middle ...

Update: This story has been updated with Deloitte's statement Ransomware group Brain Cipher earlier claimed responsibility for a cyberattack on Deloitte UK. The hacker group also claimed stealing ...