1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
require_relative '../../../spec_helper'
require 'openssl'
guard -> { OpenSSL::OPENSSL_VERSION_NUMBER >= 0x10100000 } do
describe "OpenSSL::KDF.scrypt" do
before :each do
@defaults = {
salt: "\x00".b * 16,
N: 2**14,
r: 8,
p: 1,
length: 32
}
end
it "creates the same value with the same input" do
key = OpenSSL::KDF.scrypt("secret", **@defaults)
key.should == "h\xB2k\xDF]\xDA\xE1.-(\xCF\xAC\x91D\x8F\xC2a\x9C\x9D\x17}\xF2\x84T\xD4)\xC2>\xFE\x93\xE3\xF4".b
end
it "supports nullbytes embedded into the password" do
key = OpenSSL::KDF.scrypt("sec\x00ret".b, **@defaults)
key.should == "\xF9\xA4\xA0\xF1p\xF4\xF0\xCAT\xB4v\xEB\r7\x88N\xF7\x15]Ns\xFCwt4a\xC9\xC6\xA7\x13\x81&".b
end
it "coerces the password into a String using #to_str" do
pass = mock("pass")
pass.should_receive(:to_str).and_return("secret")
key = OpenSSL::KDF.scrypt(pass, **@defaults)
key.should == "h\xB2k\xDF]\xDA\xE1.-(\xCF\xAC\x91D\x8F\xC2a\x9C\x9D\x17}\xF2\x84T\xD4)\xC2>\xFE\x93\xE3\xF4".b
end
it "coerces the salt into a String using #to_str" do
salt = mock("salt")
salt.should_receive(:to_str).and_return("\x00".b * 16)
key = OpenSSL::KDF.scrypt("secret", **@defaults, salt: salt)
key.should == "h\xB2k\xDF]\xDA\xE1.-(\xCF\xAC\x91D\x8F\xC2a\x9C\x9D\x17}\xF2\x84T\xD4)\xC2>\xFE\x93\xE3\xF4".b
end
it "coerces the N into an Integer using #to_int" do
n = mock("N")
n.should_receive(:to_int).and_return(2**14)
key = OpenSSL::KDF.scrypt("secret", **@defaults, N: n)
key.should == "h\xB2k\xDF]\xDA\xE1.-(\xCF\xAC\x91D\x8F\xC2a\x9C\x9D\x17}\xF2\x84T\xD4)\xC2>\xFE\x93\xE3\xF4".b
end
it "coerces the r into an Integer using #to_int" do
r = mock("r")
r.should_receive(:to_int).and_return(8)
key = OpenSSL::KDF.scrypt("secret", **@defaults, r: r)
key.should == "h\xB2k\xDF]\xDA\xE1.-(\xCF\xAC\x91D\x8F\xC2a\x9C\x9D\x17}\xF2\x84T\xD4)\xC2>\xFE\x93\xE3\xF4".b
end
it "coerces the p into an Integer using #to_int" do
p = mock("p")
p.should_receive(:to_int).and_return(1)
key = OpenSSL::KDF.scrypt("secret", **@defaults, p: p)
key.should == "h\xB2k\xDF]\xDA\xE1.-(\xCF\xAC\x91D\x8F\xC2a\x9C\x9D\x17}\xF2\x84T\xD4)\xC2>\xFE\x93\xE3\xF4".b
end
it "coerces the length into an Integer using #to_int" do
length = mock("length")
length.should_receive(:to_int).and_return(32)
key = OpenSSL::KDF.scrypt("secret", **@defaults, length: length)
key.should == "h\xB2k\xDF]\xDA\xE1.-(\xCF\xAC\x91D\x8F\xC2a\x9C\x9D\x17}\xF2\x84T\xD4)\xC2>\xFE\x93\xE3\xF4".b
end
it "accepts an empty password" do
key = OpenSSL::KDF.scrypt("", **@defaults)
key.should == "\xAA\xFC\xF5^E\x94v\xFFk\xE6\xF0vR\xE7\x13\xA7\xF5\x15'\x9A\xE4C\x9Dn\x18F_E\xD2\v\e\xB3".b
end
it "accepts an empty salt" do
key = OpenSSL::KDF.scrypt("secret", **@defaults, salt: "")
key.should == "\x96\xACDl\xCB3/aN\xB0F\x8A#\xD7\x92\xD2O\x1E\v\xBB\xCE\xC0\xAA\xB9\x0F]\xB09\xEA8\xDD\e".b
end
it "accepts a zero length" do
key = OpenSSL::KDF.scrypt("secret", **@defaults, length: 0)
key.should.empty?
end
it "accepts an arbitrary length" do
key = OpenSSL::KDF.scrypt("secret", **@defaults, length: 19)
key.should == "h\xB2k\xDF]\xDA\xE1.-(\xCF\xAC\x91D\x8F\xC2a\x9C\x9D".b
end
it "raises a TypeError when password is not a String and does not respond to #to_str" do
-> {
OpenSSL::KDF.scrypt(Object.new, **@defaults)
}.should raise_error(TypeError, "no implicit conversion of Object into String")
end
it "raises a TypeError when salt is not a String and does not respond to #to_str" do
-> {
OpenSSL::KDF.scrypt("secret", **@defaults, salt: Object.new)
}.should raise_error(TypeError, "no implicit conversion of Object into String")
end
it "raises a TypeError when N is not an Integer and does not respond to #to_int" do
-> {
OpenSSL::KDF.scrypt("secret", **@defaults, N: Object.new)
}.should raise_error(TypeError, "no implicit conversion of Object into Integer")
end
it "raises a TypeError when r is not an Integer and does not respond to #to_int" do
-> {
OpenSSL::KDF.scrypt("secret", **@defaults, r: Object.new)
}.should raise_error(TypeError, "no implicit conversion of Object into Integer")
end
it "raises a TypeError when p is not an Integer and does not respond to #to_int" do
-> {
OpenSSL::KDF.scrypt("secret", **@defaults, p: Object.new)
}.should raise_error(TypeError, "no implicit conversion of Object into Integer")
end
it "raises a TypeError when length is not an Integer and does not respond to #to_int" do
-> {
OpenSSL::KDF.scrypt("secret", **@defaults, length: Object.new)
}.should raise_error(TypeError, "no implicit conversion of Object into Integer")
end
it "treats salt as a required keyword" do
-> {
OpenSSL::KDF.scrypt("secret", **@defaults.except(:salt))
}.should raise_error(ArgumentError, 'missing keyword: :salt')
end
it "treats N as a required keyword" do
-> {
OpenSSL::KDF.scrypt("secret", **@defaults.except(:N))
}.should raise_error(ArgumentError, 'missing keyword: :N')
end
it "treats r as a required keyword" do
-> {
OpenSSL::KDF.scrypt("secret", **@defaults.except(:r))
}.should raise_error(ArgumentError, 'missing keyword: :r')
end
it "treats p as a required keyword" do
-> {
OpenSSL::KDF.scrypt("secret", **@defaults.except(:p))
}.should raise_error(ArgumentError, 'missing keyword: :p')
end
it "treats length as a required keyword" do
-> {
OpenSSL::KDF.scrypt("secret", **@defaults.except(:length))
}.should raise_error(ArgumentError, 'missing keyword: :length')
end
it "treats all keywords as required" do
-> {
OpenSSL::KDF.scrypt("secret")
}.should raise_error(ArgumentError, 'missing keywords: :salt, :N, :r, :p, :length')
end
it "requires N to be a power of 2" do
-> {
OpenSSL::KDF.scrypt("secret", **@defaults, N: 2**14 - 1)
}.should raise_error(OpenSSL::KDF::KDFError, /EVP_PBE_scrypt/)
end
it "requires N to be at least 2" do
key = OpenSSL::KDF.scrypt("secret", **@defaults, N: 2)
key.should == "\x06A$a\xA9!\xBE\x01\x85\xA7\x18\xBCEa\x82\xC5\xFEl\x93\xAB\xBD\xF7\x8B\x84\v\xFC\eN\xEBQ\xE6\xD2".b
-> {
OpenSSL::KDF.scrypt("secret", **@defaults, N: 1)
}.should raise_error(OpenSSL::KDF::KDFError, /EVP_PBE_scrypt/)
-> {
OpenSSL::KDF.scrypt("secret", **@defaults, N: 0)
}.should raise_error(OpenSSL::KDF::KDFError, /EVP_PBE_scrypt/)
-> {
OpenSSL::KDF.scrypt("secret", **@defaults, N: -1)
}.should raise_error(OpenSSL::KDF::KDFError, /EVP_PBE_scrypt/)
end
it "requires r to be positive" do
-> {
OpenSSL::KDF.scrypt("secret", **@defaults, r: 0)
}.should raise_error(OpenSSL::KDF::KDFError, /EVP_PBE_scrypt/)
-> {
OpenSSL::KDF.scrypt("secret", **@defaults, r: -1)
}.should raise_error(OpenSSL::KDF::KDFError, /EVP_PBE_scrypt/)
end
it "requires p to be positive" do
-> {
OpenSSL::KDF.scrypt("secret", **@defaults, p: 0)
}.should raise_error(OpenSSL::KDF::KDFError, /EVP_PBE_scrypt/)
-> {
OpenSSL::KDF.scrypt("secret", **@defaults, p: -1)
}.should raise_error(OpenSSL::KDF::KDFError, /EVP_PBE_scrypt/)
end
it "requires length to be not negative" do
-> {
OpenSSL::KDF.scrypt("secret", **@defaults, length: -1)
}.should raise_error(ArgumentError, "negative string size (or size too big)")
end
end
end
|