LAN Manager (LM) hashes are legacy password hashing methods used in older Windows systems (including Windows 2000 for backward compatibility). LM hashing works by:
Converting the password to uppercase.
Padding or truncating it to 14 characters.
Splitting it into two 7-character halves.
Using each half as a DES key to encrypt a known constant ("KGS!@#$%").
Therefore, LM hashing uses the DES (Data Encryption Standard) algorithm.
From CEH v13 Official Courseware:
Module 6: Malware Threats → Password Storage and LM Hash Structure
[Reference:CEH v13 Study Guide – Module 6: Windows Password StorageMicrosoft Security Documentation – LM/NTLM Authentication, ======, , ]
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