module DigestHash
DigestHash
module implements Pearson Hash algorithm used in TLSH computation
Constants
- TABLE
frozen random initialization
Public Class Methods
pearson_hash(salt, keys)
click to toggle source
# File lib/tlsh/digest_hash/pearson.rb, line 22 def pearson_hash(salt, keys) raise Tlsh::MalformedInputError, 'Missing keys for pearson_hash' if keys.nil? || keys.empty? raise Tlsh::MalformedInputError, 'Missing salt for pearson_hash' if salt.nil? h = 0 h = TABLE[h ^ salt] h = TABLE[h ^ keys[0]] h = TABLE[h ^ keys[1]] TABLE[h ^ keys[2]] end