Commit 649682ef658d3dfcdecdb116a0a36fffc4678542
Moved calibration into BCrypt::Engine.
git-svn-id: http://bcrypt-ruby.rubyforge.org/svn/trunk@9 b1e0f299-433e-4bb3-9895-84128a6cfb6acodahale committed on 2/28/2007, 3:43:10 AM
Parent: 03c07302c3f65146490bf60e9a39bd16fe1dcf67
Files changed
| lib/bcrypt.rb | changed |
| spec/bcrypt/engine_spec.rb | changed |
| spec/bcrypt/bcrypt_spec.rb | deleted |
| lib/bcrypt.rb | |||
|---|---|---|---|
| @@ -48,28 +48,28 @@ | |||
| 48 | 48 … | # Returns true if +salt+ is a valid bcrypt() salt, false if not. | |
| 49 | 49 … | def self.valid_salt?(salt) | |
| 50 | 50 … | salt =~ /^\$[0-9a-z]{2,}\$[0-9]{2,}\$[A-Za-z0-9\.\/]{22,}$/ | |
| 51 | 51 … | end | |
| 52 | - end | ||
| 53 | - | ||
| 54 | - # Returns the cost factor which will result in computation times less than +upper_time_limit_in_ms+. | ||
| 55 | - # | ||
| 56 | - # Example: | ||
| 57 | - # | ||
| 58 | - # BCrypt.calibrate(200) #=> 10 | ||
| 59 | - # BCrypt.calibrate(1000) #=> 12 | ||
| 60 | - # | ||
| 61 | - # # should take less than 200ms | ||
| 62 | - # BCrypt::Password.create("woo", :cost => 10) | ||
| 63 | - # | ||
| 64 | - # # should take less than 1000ms | ||
| 65 | - # BCrypt::Password.create("woo", :cost => 12) | ||
| 66 | - def self.calibrate(upper_time_limit_in_ms) | ||
| 67 | - 40.times do |i| | ||
| 68 | - start_time = Time.now | ||
| 69 | - Password.create("testing testing", :cost => i+1) | ||
| 70 | - end_time = Time.now - start_time | ||
| 71 | - return i if end_time * 1_000 > upper_time_limit_in_ms | ||
| 52 … | + | ||
| 53 … | + # Returns the cost factor which will result in computation times less than +upper_time_limit_in_ms+. | ||
| 54 … | + # | ||
| 55 … | + # Example: | ||
| 56 … | + # | ||
| 57 … | + # BCrypt.calibrate(200) #=> 10 | ||
| 58 … | + # BCrypt.calibrate(1000) #=> 12 | ||
| 59 … | + # | ||
| 60 … | + # # should take less than 200ms | ||
| 61 … | + # BCrypt::Password.create("woo", :cost => 10) | ||
| 62 … | + # | ||
| 63 … | + # # should take less than 1000ms | ||
| 64 … | + # BCrypt::Password.create("woo", :cost => 12) | ||
| 65 … | + def self.calibrate(upper_time_limit_in_ms) | ||
| 66 … | + 40.times do |i| | ||
| 67 … | + start_time = Time.now | ||
| 68 … | + Password.create("testing testing", :cost => i+1) | ||
| 69 … | + end_time = Time.now - start_time | ||
| 70 … | + return i if end_time * 1_000 > upper_time_limit_in_ms | ||
| 71 … | + end | ||
| 72 | 72 … | end | |
| 73 | 73 … | end | |
| 74 | 74 … | ||
| 75 | 75 … | # A password management class which allows you to safely store users' passwords and compare them. | |
| @@ -127,14 +127,13 @@ | |||
| 127 | 127 … | raise Errors::InvalidHash.new("invalid hash") | |
| 128 | 128 … | end | |
| 129 | 129 … | end | |
| 130 | 130 … | ||
| 131 | - alias_method :exactly_equals, :== | ||
| 132 | - | ||
| 133 | 131 … | # Compares a potential secret against the hash. Returns true if the secret is the original secret, false otherwise. | |
| 134 | 132 … | def ==(secret) | |
| 135 | - self.exactly_equals(BCrypt::Engine.hash(secret, @salt)) | ||
| 133 … | + super(BCrypt::Engine.hash(secret, @salt)) | ||
| 136 | 134 … | end | |
| 135 … | + alias_method :is_password?, :== | ||
| 137 | 136 … | ||
| 138 | 137 … | private | |
| 139 | 138 … | # Returns true if +h+ is a valid hash. | |
| 140 | 139 … | def valid_hash?(h) | |
| spec/bcrypt/engine_spec.rb | ||
|---|---|---|
| @@ -1,6 +1,14 @@ | ||
| 1 | 1 … | require File.join(File.dirname(__FILE__), "..", "spec_helper") |
| 2 | 2 … | |
| 3 … | +context "The BCrypt engine" do | |
| 4 … | + specify "should calculate the optimal cost factor to fit in a specific time" do | |
| 5 … | + first = BCrypt::Engine.calibrate(100) | |
| 6 … | + second = BCrypt::Engine.calibrate(300) | |
| 7 … | + second.should >(first + 1) | |
| 8 … | + end | |
| 9 … | +end | |
| 10 … | + | |
| 3 | 11 … | context "Generating BCrypt salts" do |
| 4 | 12 … | |
| 5 | 13 … | specify "should produce strings" do |
| 6 | 14 … | BCrypt::Engine.generate_salt.should be_an_instance_of(String) |
| spec/bcrypt/bcrypt_spec.rb | ||
|---|---|---|
| @@ -1,9 +1,0 @@ | ||
| 1 | -require File.join(File.dirname(__FILE__), "..", "spec_helper") | |
| 2 | - | |
| 3 | -context "BCrypt" do | |
| 4 | - specify "should calculate the optimal cost factor to fit in a specific time" do | |
| 5 | - first = BCrypt.calibrate(100) | |
| 6 | - second = BCrypt.calibrate(300) | |
| 7 | - second.should >(first + 1) | |
| 8 | - end | |
| 9 | -end | |
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