Furthermore, since many files share common prefixes, attackers can significantly reduce down the search space through brute-force attacks without knowing the key. The IV used for each file is generated by taking the MD5 hash of the file’s full pathname, which means an attacker can check if two different files lead to the same ciphertext by comparing their hashes. The weakness comes from how Symantec generates IVs for each file or directory it encrypts. This is a standard algorithm and there are no known breakthroughs on this cryptosystem, yet some researchers have found some weaknesses in its implementation. Symantec Endpoint Encryption uses AES with 128-bit keys in CBC mode. A recent academic paper has found a vulnerability in the AES implementation of Symantec Endpoint Encryption that allows the recovery of encrypted files. Symantec claims that its encryption algorithm is unbreakable, but they have to say this because most users would not buy their product if there were known weaknesses. Symantec Endpoint Encryption is an encryption software that can be used to encrypt your computer files. How To Decrypt Symantec Endpoint Encryption? Introduction
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