Specifies the number of times the hashing function will be applied when generating new password hashes. The number of times is calculated by raising 2 to the power of the given

Returns a string for mapping an int to the corresponding base 64 character. File core/lib/Drupal/Cor

Secure password hashing functions based on the Portable PHP password hashing framework. Hierarchy

public PhpassHashedPassword::needsRehash($hash)

protected PhpassHashedPassword::generateSalt()