Lines Matching full:entropy

18 // A class to get entropy source values from the PrefService.
22   // the entropy source value from this helper class.
35   // Overriding the entropy source preferences with new values as given by
47   // Returns the high entropy source for this client, which is composed of a
48   // client ID and the low entropy source. This is intended to be unique for
53   // Returns the low entropy source that is used to randomize field trials on
58   // Returns the pseudo low entropy source for this client. Generates a new
63   // Returns the old low entropy source for this client. Does not generate a new
68   // Returns the limited entropy randomization source that is used to randomize
69   // field trials in a limited entropy layer. Generates a new value if there is
74   // The argument used to generate a non-identifying entropy source. We want no
75   // more than 13 bits of entropy, so use this max to return a number in the
76   // range [0, 7999] as the entropy source (12.97 bits of entropy).
98   // Loads the low entropy source values from prefs. Creates the new source
104   // Returns the limited entropy randomization source value if one is already
111   // Checks whether a value is on the range of allowed low entropy source
115   // Checks whether the given value is a valid limited entropy randomization
119   // Generates a new limited entropy randomization source.
125   // The non-identifying low entropy source values. These values seed the
128   // requiring low entropy. Clients which already have an "old" value continue
129   // incorporating it into the high entropy source, to avoid changing those
132   // The pseudo-low entropy source is not used for experiment diversion, but
135   // accumulate in actual low entropy source buckets.)
145   // limited entropy layer. During startup this value is set to one that's