-rw-r--r-- | frontend/delta/js/Clipperz/Crypto/SRP.js | 53 |
1 files changed, 41 insertions, 12 deletions
diff --git a/frontend/delta/js/Clipperz/Crypto/SRP.js b/frontend/delta/js/Clipperz/Crypto/SRP.js index 597e72d..6898dfb 100644 --- a/frontend/delta/js/Clipperz/Crypto/SRP.js +++ b/frontend/delta/js/Clipperz/Crypto/SRP.js | |||
@@ -35,44 +35,55 @@ try { if (typeof(Clipperz.Crypto.PRNG) == 'undefined') { throw ""; }} catch (e) | |||
35 | 35 | ||
36 | if (typeof(Clipperz.Crypto.SRP) == 'undefined') { Clipperz.Crypto.SRP = {}; } | 36 | if (typeof(Clipperz.Crypto.SRP) == 'undefined') { Clipperz.Crypto.SRP = {}; } |
37 | 37 | ||
38 | Clipperz.Crypto.SRP.VERSION = "0.1"; | 38 | Clipperz.Crypto.SRP.VERSION = "0.1"; |
39 | Clipperz.Crypto.SRP.NAME = "Clipperz.Crypto.SRP"; | 39 | Clipperz.Crypto.SRP.NAME = "Clipperz.Crypto.SRP"; |
40 | 40 | ||
41 | //############################################################################# | 41 | //############################################################################# |
42 | 42 | ||
43 | MochiKit.Base.update(Clipperz.Crypto.SRP, { | 43 | MochiKit.Base.update(Clipperz.Crypto.SRP, { |
44 | 44 | ||
45 | '_n': null, | 45 | '_n': null, |
46 | '_g': null, | 46 | '_g': null, |
47 | '_k': null, | ||
48 | |||
47 | //------------------------------------------------------------------------- | 49 | //------------------------------------------------------------------------- |
48 | 50 | ||
49 | 'n': function() { | 51 | 'n': function() { |
50 | if (Clipperz.Crypto.SRP._n == null) { | 52 | if (Clipperz.Crypto.SRP._n == null) { |
51 | Clipperz.Crypto.SRP._n = new Clipperz.Crypto.BigInt("115b8b692e0e045692cf280b436735c77a5a9e8a9e7ed56c965f87db5b2a2ece3", 16); | 53 | Clipperz.Crypto.SRP._n = new Clipperz.Crypto.BigInt("115b8b692e0e045692cf280b436735c77a5a9e8a9e7ed56c965f87db5b2a2ece3", 16); |
52 | } | 54 | } |
53 | 55 | ||
54 | return Clipperz.Crypto.SRP._n; | 56 | return Clipperz.Crypto.SRP._n; |
55 | }, | 57 | }, |
56 | 58 | ||
57 | //------------------------------------------------------------------------- | 59 | //------------------------------------------------------------------------- |
58 | 60 | ||
59 | 'g': function() { | 61 | 'g': function() { |
60 | if (Clipperz.Crypto.SRP._g == null) { | 62 | if (Clipperz.Crypto.SRP._g == null) { |
61 | Clipperz.Crypto.SRP._g = new Clipperz.Crypto.BigInt(2); //eventually 5 (as suggested on the Diffi-Helmann documentation) | 63 | Clipperz.Crypto.SRP._g = new Clipperz.Crypto.BigInt(2); //eventually 5 (as suggested on the Diffi-Helmann documentation) |
62 | } | 64 | } |
63 | 65 | ||
64 | return Clipperz.Crypto.SRP._g; | 66 | return Clipperz.Crypto.SRP._g; |
65 | }, | 67 | }, |
66 | 68 | ||
69 | 'k': function() { | ||
70 | if (Clipperz.Crypto.SRP._k == null) { | ||
71 | // Clipperz.Crypto.SRP._k = new Clipperz.Crypto.BigInt(this.stringHash(this.n().asString() + this.g().asString()), 16); | ||
72 | Clipperz.Crypto.SRP._k = new Clipperz.Crypto.BigInt("64398bff522814e306a97cb9bfc4364b7eed16a8c17c5208a40a2bad2933c8e", 16); | ||
73 | } | ||
74 | |||
75 | return Clipperz.Crypto.SRP._k; | ||
76 | }, | ||
77 | |||
67 | //----------------------------------------------------------------------------- | 78 | //----------------------------------------------------------------------------- |
68 | 79 | ||
69 | 'exception': { | 80 | 'exception': { |
70 | 'InvalidValue': new MochiKit.Base.NamedError("Clipperz.Crypto.SRP.exception.InvalidValue") | 81 | 'InvalidValue': new MochiKit.Base.NamedError("Clipperz.Crypto.SRP.exception.InvalidValue") |
71 | }, | 82 | }, |
72 | 83 | ||
73 | //------------------------------------------------------------------------- | 84 | //------------------------------------------------------------------------- |
74 | __syntaxFix__: "syntax fix" | 85 | __syntaxFix__: "syntax fix" |
75 | 86 | ||
76 | }); | 87 | }); |
77 | 88 | ||
78 | //############################################################################# | 89 | //############################################################################# |
@@ -129,28 +140,27 @@ Clipperz.Crypto.SRP.Connection.prototype = MochiKit.Base.update(null, { | |||
129 | if (this._a == null) { | 140 | if (this._a == null) { |
130 | this._a = new Clipperz.Crypto.BigInt(Clipperz.Crypto.PRNG.defaultRandomGenerator().getRandomBytes(32).toHexString().substring(2), 16); | 141 | this._a = new Clipperz.Crypto.BigInt(Clipperz.Crypto.PRNG.defaultRandomGenerator().getRandomBytes(32).toHexString().substring(2), 16); |
131 | // this._a = new Clipperz.Crypto.BigInt("37532428169486597638072888476611365392249575518156687476805936694442691012367", 10); | 142 | // this._a = new Clipperz.Crypto.BigInt("37532428169486597638072888476611365392249575518156687476805936694442691012367", 10); |
132 | } | 143 | } |
133 | 144 | ||
134 | return this._a; | 145 | return this._a; |
135 | }, | 146 | }, |
136 | 147 | ||
137 | //------------------------------------------------------------------------- | 148 | //------------------------------------------------------------------------- |
138 | 149 | ||
139 | 'A': function () { | 150 | 'A': function () { |
140 | if (this._A == null) { | 151 | if (this._A == null) { |
141 | //Warning: this value should be strictly greater than zero: how should we perform this check? | 152 | //Warning: this value should be strictly greater than zero |
142 | this._A = Clipperz.Crypto.SRP.g().powerModule(this.a(), Clipperz.Crypto.SRP.n()); | 153 | this._A = Clipperz.Crypto.SRP.g().powerModule(this.a(), Clipperz.Crypto.SRP.n()); |
143 | 154 | if (this._A.equals(0) || negative(this._A)) { | |
144 | if (this._A.equals(0)) { | ||
145 | Clipperz.logError("Clipperz.Crypto.SRP.Connection: trying to set 'A' to 0."); | 155 | Clipperz.logError("Clipperz.Crypto.SRP.Connection: trying to set 'A' to 0."); |
146 | throw Clipperz.Crypto.SRP.exception.InvalidValue; | 156 | throw Clipperz.Crypto.SRP.exception.InvalidValue; |
147 | } | 157 | } |
148 | } | 158 | } |
149 | 159 | ||
150 | return this._A; | 160 | return this._A; |
151 | }, | 161 | }, |
152 | 162 | ||
153 | //------------------------------------------------------------------------- | 163 | //------------------------------------------------------------------------- |
154 | 164 | ||
155 | 's': function () { | 165 | 's': function () { |
156 | return this._s; | 166 | return this._s; |
@@ -158,98 +168,117 @@ Clipperz.Crypto.SRP.Connection.prototype = MochiKit.Base.update(null, { | |||
158 | 168 | ||
159 | 'set_s': function(aValue) { | 169 | 'set_s': function(aValue) { |
160 | this._s = aValue; | 170 | this._s = aValue; |
161 | }, | 171 | }, |
162 | 172 | ||
163 | //------------------------------------------------------------------------- | 173 | //------------------------------------------------------------------------- |
164 | 174 | ||
165 | 'B': function () { | 175 | 'B': function () { |
166 | return this._B; | 176 | return this._B; |
167 | }, | 177 | }, |
168 | 178 | ||
169 | 'set_B': function(aValue) { | 179 | 'set_B': function(aValue) { |
170 | //Warning: this value should be strictly greater than zero: how should we perform this check? | 180 | //Warning: this value should be strictly greater than zero |
171 | if (! aValue.equals(0)) { | 181 | this._B = aValue; |
172 | this._B = aValue; | 182 | if (this._B.equals(0) || negative(this._B)) { |
173 | } else { | ||
174 | Clipperz.logError("Clipperz.Crypto.SRP.Connection: trying to set 'B' to 0."); | 183 | Clipperz.logError("Clipperz.Crypto.SRP.Connection: trying to set 'B' to 0."); |
175 | throw Clipperz.Crypto.SRP.exception.InvalidValue; | 184 | throw Clipperz.Crypto.SRP.exception.InvalidValue; |
176 | } | 185 | } |
177 | }, | 186 | }, |
178 | 187 | ||
179 | //------------------------------------------------------------------------- | 188 | //------------------------------------------------------------------------- |
180 | 189 | ||
181 | 'x': function () { | 190 | 'x': function () { |
182 | if (this._x == null) { | 191 | if (this._x == null) { |
183 | this._x = new Clipperz.Crypto.BigInt(this.stringHash(this.s().asString(16, 64) + this.P()), 16); | 192 | this._x = new Clipperz.Crypto.BigInt(this.stringHash(this.s().asString(16, 64) + this.P()), 16); |
184 | } | 193 | } |
185 | 194 | ||
186 | return this._x; | 195 | return this._x; |
187 | }, | 196 | }, |
188 | 197 | ||
189 | //------------------------------------------------------------------------- | 198 | //------------------------------------------------------------------------- |
190 | 199 | ||
191 | 'u': function () { | 200 | 'u': function () { |
192 | if (this._u == null) { | 201 | if (this._u == null) { |
193 | this._u = new Clipperz.Crypto.BigInt(this.stringHash(this.B().asString()), 16); | 202 | this._u = new Clipperz.Crypto.BigInt(this.stringHash(this.A().asString() + this.B().asString()), 16); |
194 | } | 203 | } |
195 | 204 | ||
196 | return this._u; | 205 | return this._u; |
197 | }, | 206 | }, |
198 | 207 | ||
199 | //------------------------------------------------------------------------- | 208 | //------------------------------------------------------------------------- |
200 | 209 | ||
201 | 'S': function () { | 210 | 'S': function () { |
202 | if (this._S == null) { | 211 | if (this._S == null) { |
203 | var bigint; | 212 | var bigint; |
204 | varsrp; | 213 | varsrp; |
205 | 214 | ||
206 | bigint = Clipperz.Crypto.BigInt; | 215 | bigint = Clipperz.Crypto.BigInt; |
207 | srp = Clipperz.Crypto.SRP; | 216 | srp = Clipperz.Crypto.SRP; |
208 | 217 | ||
209 | this._S =bigint.powerModule( | 218 | this._S =bigint.powerModule( |
210 | bigint.subtract(this.B(), bigint.powerModule(srp.g(), this.x(), srp.n())), | 219 | bigint.subtract( |
211 | bigint.add(this.a(), bigint.multiply(this.u(), this.x())), | 220 | this.B(), |
212 | srp.n() | 221 | bigint.multiply( |
222 | Clipperz.Crypto.SRP.k(), | ||
223 | bigint.powerModule(srp.g(), this.x(), srp.n()) | ||
224 | ) | ||
225 | ), | ||
226 | bigint.add(this.a(), bigint.multiply(this.u(), this.x())), | ||
227 | srp.n() | ||
213 | ) | 228 | ) |
214 | } | 229 | } |
215 | 230 | ||
216 | return this._S; | 231 | return this._S; |
217 | }, | 232 | }, |
218 | 233 | ||
219 | //------------------------------------------------------------------------- | 234 | //------------------------------------------------------------------------- |
220 | 235 | ||
221 | 'K': function () { | 236 | 'K': function () { |
222 | if (this._K == null) { | 237 | if (this._K == null) { |
223 | this._K = this.stringHash(this.S().asString()); | 238 | this._K = this.stringHash(this.S().asString()); |
224 | } | 239 | } |
225 | 240 | ||
226 | return this._K; | 241 | return this._K; |
227 | }, | 242 | }, |
228 | 243 | ||
229 | //------------------------------------------------------------------------- | 244 | //------------------------------------------------------------------------- |
230 | 245 | ||
231 | 'M1': function () { | 246 | 'M1': function () { |
232 | if (this._M1 == null) { | 247 | if (this._M1 == null) { |
233 | this._M1 = this.stringHash(this.A().asString(10) + this.B().asString(10) + this.K()); | 248 | // this._M1 = this.stringHash(this.A().asString(10) + this.B().asString(10) + this.K()); |
249 | |||
250 | //http://srp.stanford.edu/design.html | ||
251 | //User -> Host: M = H(H(N) xor H(g), H(I), s, A, B, K) | ||
252 | |||
253 | this._M1 = this.stringHash( | ||
254 | "597626870978286801440197562148588907434001483655788865609375806439877501869636875571920406529" + | ||
255 | this.stringHash(this.C()) + | ||
256 | this.s().asString() + | ||
257 | this.A().asString() + | ||
258 | this.B().asString() + | ||
259 | this.K() | ||
260 | ); | ||
261 | //console.log("M1", this._M1); | ||
234 | } | 262 | } |
235 | 263 | ||
236 | return this._M1; | 264 | return this._M1; |
237 | }, | 265 | }, |
238 | 266 | ||
239 | //------------------------------------------------------------------------- | 267 | //------------------------------------------------------------------------- |
240 | 268 | ||
241 | 'M2': function () { | 269 | 'M2': function () { |
242 | if (this._M2 == null) { | 270 | if (this._M2 == null) { |
243 | this._M2 = this.stringHash(this.A().asString(10) + this.M1() + this.K()); | 271 | this._M2 = this.stringHash(this.A().asString(10) + this.M1() + this.K()); |
272 | //console.log("M2", this._M2); | ||
244 | } | 273 | } |
245 | 274 | ||
246 | return this._M2; | 275 | return this._M2; |
247 | }, | 276 | }, |
248 | 277 | ||
249 | //========================================================================= | 278 | //========================================================================= |
250 | 279 | ||
251 | 'serverSideCredentialsWithSalt': function(aSalt) { | 280 | 'serverSideCredentialsWithSalt': function(aSalt) { |
252 | var result; | 281 | var result; |
253 | var s, x, v; | 282 | var s, x, v; |
254 | 283 | ||
255 | s = aSalt; | 284 | s = aSalt; |