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1 | build 3.zip\build 3\MHLTH_YS_137_Source\JavaScript\resources\javaJDF-1.8.0\src\sun\security\mscapi | RSACipher.java | Mon Jan 22 14:46:58 2018 UTC |
2 | build 3.zip\build 3\MHLTH_YS_137_Source\JavaScript\resources\javaJDF-1.8.0\src\sun\security\mscapi | RSACipher.java | Wed Sep 12 17:52:56 2018 UTC |
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1 | /* | |
2 | * Copyrig ht (c) 200 5, 2012, O racle and/ or its aff iliates. A ll rights reserved. | |
3 | * DO NOT ALTER OR R EMOVE COPY RIGHT NOTI CES OR THI S FILE HEA DER. | |
4 | * | |
5 | * This co de is free software; you can r edistribut e it and/o r modify i t | |
6 | * under t he terms o f the GNU General Pu blic Licen se version 2 only, a s | |
7 | * publish ed by the Free Softw are Founda tion. Ora cle design ates this | |
8 | * particu lar file a s subject to the "Cl asspath" e xception a s provided | |
9 | * by Orac le in the LICENSE fi le that ac companied this code. | |
10 | * | |
11 | * This co de is dist ributed in the hope that it wi ll be usef ul, but WI THOUT | |
12 | * ANY WAR RANTY; wit hout even the implie d warranty of MERCHA NTABILITY or | |
13 | * FITNESS FOR A PAR TICULAR PU RPOSE. Se e the GNU General Pu blic Licen se | |
14 | * version 2 for mor e details (a copy is included in the LIC ENSE file that | |
15 | * accompa nied this code). | |
16 | * | |
17 | * You sho uld have r eceived a copy of th e GNU Gene ral Public License v ersion | |
18 | * 2 along with this work; if not, write to the Fr ee Softwar e Foundati on, | |
19 | * Inc., 5 1 Franklin St, Fifth Floor, Bo ston, MA 0 2110-1301 USA. | |
20 | * | |
21 | * Please contact Or acle, 500 Oracle Par kway, Redw ood Shores , CA 94065 USA | |
22 | * or visi t www.orac le.com if you need a dditional informatio n or have any | |
23 | * questio ns. | |
24 | */ | |
25 | ||
26 | package su n.security .mscapi; | |
27 | ||
28 | import jav a.math.Big Integer; | |
29 | import jav a.security .*; | |
30 | import jav a.security .Key; | |
31 | import jav a.security .interface s.*; | |
32 | import jav a.security .spec.*; | |
33 | ||
34 | import jav ax.crypto. *; | |
35 | import jav ax.crypto. spec.*; | |
36 | ||
37 | import sun .security. rsa.RSAKey Factory; | |
38 | import sun .security. internal.s pec.TlsRsa PremasterS ecretParam eterSpec; | |
39 | import sun .security. util.KeyUt il; | |
40 | ||
41 | /** | |
42 | * RSA cip her implem entation u sing the M icrosoft C rypto API. | |
43 | * Support s RSA en/d ecryption and signin g/verifyin g using PK CS#1 v1.5 padding. | |
44 | * | |
45 | * Objects should be instantia ted by cal ling Ciphe r.getInsta nce() usin g the | |
46 | * followi ng algorit hm name: | |
47 | * | |
48 | * . "RSA /ECB/PKCS1 Padding" ( or "RSA") for PKCS#1 padding. The mode ( blocktype) | |
49 | * is s elected ba sed on the en/decryp tion mode and public /private k ey used. | |
50 | * | |
51 | * We only do one RS A operatio n per doFi nal() call . If the a pplication passes | |
52 | * more da ta via cal ls to upda te() or do Final(), w e throw an | |
53 | * Illegal BlockSizeE xception w hen doFina l() is cal led (see J CE API spe c). | |
54 | * Bulk en cryption u sing RSA d oes not ma ke sense a nd is not standardiz ed. | |
55 | * | |
56 | * Note: R SA keys sh ould be at least 512 bits long | |
57 | * | |
58 | * @since 1.6 | |
59 | * @author Andreas Sterbenz | |
60 | * @author Vincent Ryan | |
61 | */ | |
62 | public fin al class R SACipher e xtends Cip herSpi { | |
63 | ||
64 | // con stant for an empty b yte array | |
65 | privat e final st atic byte[ ] B0 = new byte[0]; | |
66 | ||
67 | // mod e constant for publi c key encr yption | |
68 | privat e final st atic int M ODE_ENCRYP T = 1; | |
69 | // mod e constant for priva te key dec ryption | |
70 | privat e final st atic int M ODE_DECRYP T = 2; | |
71 | // mod e constant for priva te key enc ryption (s igning) | |
72 | privat e final st atic int M ODE_SIGN = 3; | |
73 | // mod e constant for publi c key decr yption (ve rifying) | |
74 | privat e final st atic int M ODE_VERIFY = 4; | |
75 | ||
76 | // con stant for PKCS#1 v1. 5 RSA | |
77 | privat e final st atic Strin g PAD_PKCS 1 = "PKCS1 Padding"; | |
78 | privat e final st atic int P AD_PKCS1_L ENGTH = 11 ; | |
79 | ||
80 | // cur rent mode, one of MO DE_* above . Set when init() is called | |
81 | privat e int mode ; | |
82 | ||
83 | // act ive paddin g type, on e of PAD_* above. Se t by setPa dding() | |
84 | privat e String p addingType ; | |
85 | privat e int padd ingLength = 0; | |
86 | ||
87 | // buf fer for th e data | |
88 | privat e byte[] b uffer; | |
89 | // off set into t he buffer (number of bytes buf fered) | |
90 | privat e int bufO fs; | |
91 | ||
92 | // siz e of the o utput (the length of the key). | |
93 | privat e int outp utSize; | |
94 | ||
95 | // the public ke y, if we w ere initia lized usin g a public key | |
96 | privat e sun.secu rity.mscap i.Key publ icKey; | |
97 | ||
98 | // the private k ey, if we were initi alized usi ng a priva te key | |
99 | privat e sun.secu rity.mscap i.Key priv ateKey; | |
100 | ||
101 | // cipher parameter for TLS RS A premaste r PW | |
102 | privat e Algorith mParameter Spec spec = null; | |
103 | ||
104 | // the source of randomnes s | |
105 | privat e SecureRa ndom rando m; | |
106 | ||
107 | public RSACipher () { | |
108 | pa ddingType = PAD_PKCS 1; | |
109 | } | |
110 | ||
111 | // mod es do not make sense for RSA, but allow ECB | |
112 | // see JCE spec | |
113 | protec ted void e ngineSetMo de(String mode) thro ws NoSuchA lgorithmEx ception { | |
114 | if (mode.equ alsIgnoreC ase("ECB") == false) { | |
115 | throw ne w NoSuchAl gorithmExc eption("Un supported mode " + m ode); | |
116 | } | |
117 | } | |
118 | ||
119 | // set the paddi ng type | |
120 | // see JCE spec | |
121 | protec ted void e ngineSetPa dding(Stri ng padding Name) | |
122 | throws N oSuchPaddi ngExceptio n { | |
123 | if (paddingN ame.equals IgnoreCase (PAD_PKCS1 )) { | |
124 | paddingT ype = PAD_ PKCS1; | |
125 | } else { | |
126 | throw ne w NoSuchPa ddingExcep tion | |
127 | ("Pa dding " + paddingNam e + " not supported" ); | |
128 | } | |
129 | } | |
130 | ||
131 | // ret urn 0 as b lock size, we are no t a block cipher | |
132 | // see JCE spec | |
133 | protec ted int en gineGetBlo ckSize() { | |
134 | re turn 0; | |
135 | } | |
136 | ||
137 | // ret urn the ou tput size | |
138 | // see JCE spec | |
139 | protec ted int en gineGetOut putSize(in t inputLen ) { | |
140 | re turn outpu tSize; | |
141 | } | |
142 | ||
143 | // no iv, return null | |
144 | // see JCE spec | |
145 | protec ted byte[] engineGet IV() { | |
146 | re turn null; | |
147 | } | |
148 | ||
149 | // no parameters , return n ull | |
150 | // see JCE spec | |
151 | protec ted Algori thmParamet ers engine GetParamet ers() { | |
152 | re turn null; | |
153 | } | |
154 | ||
155 | // see JCE spec | |
156 | protec ted void e ngineInit( int opmode , Key key, SecureRan dom random ) | |
157 | throws I nvalidKeyE xception { | |
158 | in it(opmode, key); | |
159 | } | |
160 | ||
161 | // see JCE spec | |
162 | protec ted void e ngineInit( int opmode , Key key, | |
163 | Algorith mParameter Spec param s, SecureR andom rand om) | |
164 | throws I nvalidKeyE xception, InvalidAlg orithmPara meterExcep tion { | |
165 | ||
166 | if (params ! = null) { | |
167 | if (!(pa rams insta nceof TlsR saPremaste rSecretPar ameterSpec )) { | |
168 | thro w new Inva lidAlgorit hmParamete rException ( | |
169 | "Param eters not supported" ); | |
170 | } | |
171 | spec = p arams; | |
172 | this.rando m = random ; // for TLS RSA prema ster PW | |
173 | } | |
174 | in it(opmode, key); | |
175 | } | |
176 | ||
177 | // see JCE spec | |
178 | protec ted void e ngineInit( int opmode , Key key, | |
179 | Algorith mParameter s params, SecureRand om random) | |
180 | throws I nvalidKeyE xception, InvalidAlg orithmPara meterExcep tion { | |
181 | ||
182 | if (params ! = null) { | |
183 | throw ne w InvalidA lgorithmPa rameterExc eption | |
184 | ("Pa rameters n ot support ed"); | |
185 | } | |
186 | in it(opmode, key); | |
187 | } | |
188 | ||
189 | // ini tialize th is cipher | |
190 | privat e void ini t(int opmo de, Key ke y) throws InvalidKey Exception { | |
191 | ||
192 | bo olean encr ypt; | |
193 | ||
194 | sw itch (opmo de) { | |
195 | ca se Cipher. ENCRYPT_MO DE: | |
196 | ca se Cipher. WRAP_MODE: | |
197 | paddingL ength = PA D_PKCS1_LE NGTH; | |
198 | encrypt = true; | |
199 | break; | |
200 | ca se Cipher. DECRYPT_MO DE: | |
201 | ca se Cipher. UNWRAP_MOD E: | |
202 | paddingL ength = 0; // reset | |
203 | encrypt = false; | |
204 | break; | |
205 | de fault: | |
206 | throw ne w InvalidK eyExceptio n("Unknown mode: " + opmode); | |
207 | } | |
208 | ||
209 | if (!(key in stanceof s un.securit y.mscapi.K ey)) { | |
210 | if (key instanceof java.secu rity.inter faces.RSAP ublicKey) { | |
211 | java .security. interfaces .RSAPublic Key rsaKey = | |
212 | (java.secu rity.inter faces.RSAP ublicKey) key; | |
213 | ||
214 | // C onvert key to MSCAPI format | |
215 | ||
216 | BigI nteger mod ulus = rsa Key.getMod ulus(); | |
217 | BigI nteger exp onent = r saKey.getP ublicExpon ent(); | |
218 | ||
219 | // C heck again st the loc al and glo bal values to make s ure | |
220 | // t he sizes a re ok. Ro und up to the neares t byte. | |
221 | RSAK eyFactory. checkKeyLe ngths(((mo dulus.bitL ength() + 7) & ~7), | |
222 | exponent, -1, RSAKey PairGenera tor.KEY_SI ZE_MAX); | |
223 | ||
224 | byte [] modulus Bytes = mo dulus.toBy teArray(); | |
225 | byte [] exponen tBytes = e xponent.to ByteArray( ); | |
226 | ||
227 | // A djust key length due to sign b it | |
228 | int keyBitLeng th = (modu lusBytes[0 ] == 0) | |
229 | ? (modulus Bytes.leng th - 1) * 8 | |
230 | : modulusB ytes.lengt h * 8; | |
231 | ||
232 | byte [] keyBlob = RSASign ature.gene ratePublic KeyBlob( | |
233 | keyBitLeng th, modulu sBytes, ex ponentByte s); | |
234 | ||
235 | try { | |
236 | key = RSAS ignature.i mportPubli cKey(keyBl ob, keyBit Length); | |
237 | ||
238 | } ca tch (KeySt oreExcepti on e) { | |
239 | throw new InvalidKey Exception( e); | |
240 | } | |
241 | ||
242 | } else { | |
243 | thro w new Inva lidKeyExce ption("Uns upported k ey type: " + key); | |
244 | } | |
245 | } | |
246 | ||
247 | if (key inst anceof Pub licKey) { | |
248 | mode = e ncrypt ? M ODE_ENCRYP T : MODE_V ERIFY; | |
249 | publicKe y = (sun.s ecurity.ms capi.Key)k ey; | |
250 | privateK ey = null; | |
251 | outputSi ze = publi cKey.lengt h() / 8; | |
252 | } else if (k ey instanc eof Privat eKey) { | |
253 | mode = e ncrypt ? M ODE_SIGN : MODE_DECR YPT; | |
254 | privateK ey = (sun. security.m scapi.Key) key; | |
255 | publicKe y = null; | |
256 | outputSi ze = priva teKey.leng th() / 8; | |
257 | } else { | |
258 | throw ne w InvalidK eyExceptio n("Unknown key type: " + key); | |
259 | } | |
260 | ||
261 | bu fOfs = 0; | |
262 | bu ffer = new byte[outp utSize]; | |
263 | } | |
264 | ||
265 | // int ernal upda te method | |
266 | privat e void upd ate(byte[] in, int i nOfs, int inLen) { | |
267 | if ((inLen = = 0) || (i n == null) ) { | |
268 | return; | |
269 | } | |
270 | if (bufOfs + inLen > ( buffer.len gth - padd ingLength) ) { | |
271 | bufOfs = buffer.le ngth + 1; | |
272 | return; | |
273 | } | |
274 | Sy stem.array copy(in, i nOfs, buff er, bufOfs , inLen); | |
275 | bu fOfs += in Len; | |
276 | } | |
277 | ||
278 | // int ernal doFi nal() meth od. Here w e perform the actual RSA opera tion | |
279 | privat e byte[] d oFinal() t hrows BadP addingExce ption, | |
280 | IllegalB lockSizeEx ception { | |
281 | if (bufOfs > buffer.le ngth) { | |
282 | throw ne w IllegalB lockSizeEx ception("D ata must n ot be long er " | |
283 | + "t han " + (b uffer.leng th - paddi ngLength) + " bytes "); | |
284 | } | |
285 | ||
286 | tr y { | |
287 | byte[] d ata = buff er; | |
288 | switch ( mode) { | |
289 | case MOD E_SIGN: | |
290 | retu rn encrypt Decrypt(da ta, bufOfs , | |
291 | privateKey .getHCrypt Key(), tru e); | |
292 | ||
293 | case MOD E_VERIFY: | |
294 | retu rn encrypt Decrypt(da ta, bufOfs , | |
295 | publicKey. getHCryptK ey(), fals e); | |
296 | ||
297 | case MOD E_ENCRYPT: | |
298 | retu rn encrypt Decrypt(da ta, bufOfs , | |
299 | publicKey. getHCryptK ey(), true ); | |
300 | ||
301 | case MOD E_DECRYPT: | |
302 | retu rn encrypt Decrypt(da ta, bufOfs , | |
303 | privateKey .getHCrypt Key(), fal se); | |
304 | ||
305 | default: | |
306 | thro w new Asse rtionError ("Internal error"); | |
307 | } | |
308 | ||
309 | } catch (Key Exception e) { | |
310 | throw ne w Provider Exception( e); | |
311 | ||
312 | } finally { | |
313 | bufOfs = 0; | |
314 | } | |
315 | } | |
316 | ||
317 | // see JCE spec | |
318 | protec ted byte[] engineUpd ate(byte[] in, int i nOfs, int inLen) { | |
319 | up date(in, i nOfs, inLe n); | |
320 | re turn B0; | |
321 | } | |
322 | ||
323 | // see JCE spec | |
324 | protec ted int en gineUpdate (byte[] in , int inOf s, int inL en, byte[] out, | |
325 | int outO fs) { | |
326 | up date(in, i nOfs, inLe n); | |
327 | re turn 0; | |
328 | } | |
329 | ||
330 | // see JCE spec | |
331 | protec ted byte[] engineDoF inal(byte[ ] in, int inOfs, int inLen) | |
332 | throws B adPaddingE xception, IllegalBlo ckSizeExce ption { | |
333 | up date(in, i nOfs, inLe n); | |
334 | re turn doFin al(); | |
335 | } | |
336 | ||
337 | // see JCE spec | |
338 | protec ted int en gineDoFina l(byte[] i n, int inO fs, int in Len, byte[ ] out, | |
339 | int outO fs) throws ShortBuff erExceptio n, BadPadd ingExcepti on, | |
340 | IllegalB lockSizeEx ception { | |
341 | if (outputSi ze > out.l ength - ou tOfs) { | |
342 | throw ne w ShortBuf ferExcepti on | |
343 | ("Ne ed " + out putSize + " bytes fo r output") ; | |
344 | } | |
345 | up date(in, i nOfs, inLe n); | |
346 | by te[] resul t = doFina l(); | |
347 | in t n = resu lt.length; | |
348 | Sy stem.array copy(resul t, 0, out, outOfs, n ); | |
349 | re turn n; | |
350 | } | |
351 | ||
352 | // see JCE spec | |
353 | protec ted byte[] engineWra p(Key key) throws In validKeyEx ception, | |
354 | IllegalB lockSizeEx ception { | |
355 | by te[] encod ed = key.g etEncoded( ); // TODO - unextra ctable key | |
356 | if ((encoded == null) || (encode d.length = = 0)) { | |
357 | throw ne w InvalidK eyExceptio n("Could n ot obtain encoded ke y"); | |
358 | } | |
359 | if (encoded. length > b uffer.leng th) { | |
360 | throw ne w InvalidK eyExceptio n("Key is too long f or wrappin g"); | |
361 | } | |
362 | up date(encod ed, 0, enc oded.lengt h); | |
363 | tr y { | |
364 | return d oFinal(); | |
365 | } catch (Bad PaddingExc eption e) { | |
366 | // shoul d not occu r | |
367 | throw ne w InvalidK eyExceptio n("Wrappin g failed", e); | |
368 | } | |
369 | } | |
370 | ||
371 | // see JCE spec | |
372 | protec ted java.s ecurity.Ke y engineUn wrap(byte[ ] wrappedK ey, | |
373 | String a lgorithm, | |
374 | int type ) throws I nvalidKeyE xception, NoSuchAlgo rithmExcep tion { | |
375 | ||
376 | if (wrappedK ey.length > buffer.l ength) { | |
377 | throw ne w InvalidK eyExceptio n("Key is too long f or unwrapp ing"); | |
378 | } | |
379 | ||
380 | bo olean isTl sRsaPremas terSecret = | |
381 | algo rithm.equa ls("TlsRsa PremasterS ecret"); | |
382 | Ex ception fa ilover = n ull; | |
383 | by te[] encod ed = null; | |
384 | ||
385 | up date(wrapp edKey, 0, wrappedKey .length); | |
386 | tr y { | |
387 | encoded = doFinal( ); | |
388 | } catch (Bad PaddingExc eption e) { | |
389 | if (isTl sRsaPremas terSecret) { | |
390 | fail over = e; | |
391 | } else { | |
392 | thro w new Inva lidKeyExce ption("Unw rapping fa iled", e); | |
393 | } | |
394 | } catch (Ill egalBlockS izeExcepti on e) { | |
395 | // shoul d not occu r, handled with leng th check a bove | |
396 | throw ne w InvalidK eyExceptio n("Unwrapp ing failed ", e); | |
397 | } | |
398 | ||
399 | if (isTlsRsa PremasterS ecret) { | |
400 | if (!(sp ec instanc eof TlsRsa PremasterS ecretParam eterSpec)) { | |
401 | thro w new Ille galStateEx ception( | |
402 | "No Tl sRsaPremas terSecretP arameterSp ec specifi ed"); | |
403 | } | |
404 | ||
405 | // polish the TLS pr emaster PW | |
406 | encoded = KeyUtil. checkTlsPr eMasterSec retKey( | |
407 | ((Tl sRsaPremas terSecretP arameterSp ec)spec).g etClientVe rsion(), | |
408 | ((Tl sRsaPremas terSecretP arameterSp ec)spec).g etServerVe rsion(), | |
409 | rand om, encode d, (failov er != null )); | |
410 | } | |
411 | ||
412 | re turn const ructKey(en coded, alg orithm, ty pe); | |
413 | } | |
414 | ||
415 | // see JCE spec | |
416 | protec ted int en gineGetKey Size(Key k ey) throws InvalidKe yException { | |
417 | ||
418 | if (key inst anceof sun .security. mscapi.Key ) { | |
419 | return ( (sun.secur ity.mscapi .Key) key) .length(); | |
420 | ||
421 | } else if (k ey instanc eof RSAKey ) { | |
422 | return ( (RSAKey) k ey).getMod ulus().bit Length(); | |
423 | ||
424 | } else { | |
425 | throw ne w InvalidK eyExceptio n("Unsuppo rted key t ype: " + k ey); | |
426 | } | |
427 | } | |
428 | ||
429 | // Con struct an X.509 enco ded public key. | |
430 | privat e static P ublicKey c onstructPu blicKey(by te[] encod edKey, | |
431 | St ring encod edKeyAlgor ithm) | |
432 | throws I nvalidKeyE xception, NoSuchAlgo rithmExcep tion { | |
433 | ||
434 | tr y { | |
435 | KeyFacto ry keyFact ory = KeyF actory.get Instance(e ncodedKeyA lgorithm); | |
436 | X509Enco dedKeySpec keySpec = new X509E ncodedKeyS pec(encode dKey); | |
437 | ||
438 | return k eyFactory. generatePu blic(keySp ec); | |
439 | ||
440 | } catch (NoS uchAlgorit hmExceptio n nsae) { | |
441 | throw ne w NoSuchAl gorithmExc eption("No installed provider " + | |
442 | "sup ports the " + encode dKeyAlgori thm + " al gorithm", nsae); | |
443 | ||
444 | } catch (Inv alidKeySpe cException ike) { | |
445 | throw ne w InvalidK eyExceptio n("Cannot construct public key ", ike); | |
446 | } | |
447 | } | |
448 | ||
449 | // Con struct a P KCS #8 enc oded priva te key. | |
450 | privat e static P rivateKey constructP rivateKey( byte[] enc odedKey, | |
451 | St ring encod edKeyAlgor ithm) | |
452 | throws I nvalidKeyE xception, NoSuchAlgo rithmExcep tion { | |
453 | ||
454 | tr y { | |
455 | KeyFacto ry keyFact ory = KeyF actory.get Instance(e ncodedKeyA lgorithm); | |
456 | PKCS8Enc odedKeySpe c keySpec = new PKCS 8EncodedKe ySpec(enco dedKey); | |
457 | ||
458 | return k eyFactory. generatePr ivate(keyS pec); | |
459 | ||
460 | } catch (NoS uchAlgorit hmExceptio n nsae) { | |
461 | throw ne w NoSuchAl gorithmExc eption("No installed provider " + | |
462 | "sup ports the " + encode dKeyAlgori thm + " al gorithm", nsae); | |
463 | ||
464 | } catch (Inv alidKeySpe cException ike) { | |
465 | throw ne w InvalidK eyExceptio n("Cannot construct private ke y", ike); | |
466 | } | |
467 | } | |
468 | ||
469 | // Constru ct an enco ded PW key. | |
470 | privat e static S ecretKey c onstructSe cretKey(by te[] encod edKey, | |
471 | St ring encod edKeyAlgor ithm) { | |
472 | ||
473 | re turn new S ecretKeySp ec(encoded Key, encod edKeyAlgor ithm); | |
474 | } | |
475 | ||
476 | privat e static K ey constru ctKey(byte [] encoded Key, | |
477 | String e ncodedKeyA lgorithm, | |
478 | int keyT ype) throw s InvalidK eyExceptio n, NoSuchA lgorithmEx ception { | |
479 | ||
480 | sw itch (keyT ype) { | |
481 | case Cip her.PUBLIC _KEY: | |
482 | retu rn constru ctPublicKe y(encodedK ey, encode dKeyAlgori thm); | |
483 | case Cip her.PRIVAT E_KEY: | |
484 | retu rn constru ctPrivateK ey(encoded Key, encod edKeyAlgor ithm); | |
485 | case Cip her.SECRET _KEY: | |
486 | retu rn constru ctSecretKe y(encodedK ey, encode dKeyAlgori thm); | |
487 | default: | |
488 | thro w new Inva lidKeyExce ption("Unk nown key t ype " + ke yType); | |
489 | } | |
490 | } | |
491 | ||
492 | /* | |
493 | * Enc rypt/decry pt a data buffer usi ng Microso ft Crypto API with H CRYPTKEY. | |
494 | * It expects an d returns ciphertext data in b ig-endian form. | |
495 | */ | |
496 | privat e native s tatic byte [] encrypt Decrypt(by te[] data, int dataS ize, | |
497 | lo ng hCryptK ey, boolea n doEncryp t) throws KeyExcepti on; | |
498 | ||
499 | } |
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