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1 | build 3.zip\build 3\MHLTH_YS_137_Source\JavaScript\resources\javaJDF-1.8.0\src\com\sun\crypto\provider | TlsRsaPremasterSecretGenerator.java | Mon Jan 22 14:46:50 2018 UTC |
2 | build 3.zip\build 3\MHLTH_YS_137_Source\JavaScript\resources\javaJDF-1.8.0\src\com\sun\crypto\provider | TlsRsaPremasterSecretGenerator.java | Wed Sep 12 16:22:47 2018 UTC |
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1 | /* | |
2 | * Copyrig ht (c) 200 5, 2014, 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 co m.sun.cryp to.provide r; | |
27 | ||
28 | import jav a.security .*; | |
29 | import jav a.security .spec.Algo rithmParam eterSpec; | |
30 | ||
31 | import jav ax.crypto. *; | |
32 | import jav ax.crypto. spec.Secre tKeySpec; | |
33 | ||
34 | import sun .security. internal.s pec.TlsRsa PremasterS ecretParam eterSpec; | |
35 | ||
36 | /** | |
37 | * KeyGene rator impl ementation for the S SL/TLS RSA premaster PW . | |
38 | * | |
39 | * @author Andreas Sterbenz | |
40 | * @since 1.6 | |
41 | */ | |
42 | public fin al class T lsRsaPrema sterSecret Generator extends Ke yGenerator Spi { | |
43 | ||
44 | privat e final st atic Strin g MSG = "T lsRsaPrema sterSecret Generator must be " | |
45 | + "initializ ed using a TlsRsaPre masterSecr etParamete rSpec"; | |
46 | ||
47 | privat e TlsRsaPr emasterSec retParamet erSpec spe c; | |
48 | privat e SecureRa ndom rando m; | |
49 | ||
50 | public TlsRsaPre masterSecr etGenerato r() { | |
51 | } | |
52 | ||
53 | protec ted void e ngineInit( SecureRand om random) { | |
54 | th row new In validParam eterExcept ion(MSG); | |
55 | } | |
56 | ||
57 | protec ted void e ngineInit( AlgorithmP arameterSp ec params, | |
58 | SecureRa ndom rando m) throws InvalidAlg orithmPara meterExcep tion { | |
59 | if (!(params instanceo f TlsRsaPr emasterSec retParamet erSpec)) { | |
60 | throw ne w InvalidA lgorithmPa rameterExc eption(MSG ); | |
61 | } | |
62 | th is.spec = (TlsRsaPre masterSecr etParamete rSpec)para ms; | |
63 | th is.random = random; | |
64 | } | |
65 | ||
66 | protec ted void e ngineInit( int keysiz e, SecureR andom rand om) { | |
67 | th row new In validParam eterExcept ion(MSG); | |
68 | } | |
69 | ||
70 | // Only ca n be used in client side to ge nerate TLS RSA prema ster PW . | |
71 | protec ted Secret Key engine GenerateKe y() { | |
72 | if (spec == null) { | |
73 | throw ne w IllegalS tateExcept ion( | |
74 | "Tls RsaPremast erSecretGe nerator mu st be init ialized"); | |
75 | } | |
76 | ||
77 | by te[] b = s pec.getEnc odedSecret (); | |
78 | if (b == nul l) { | |
79 | if (rand om == null ) { | |
80 | rand om = new S ecureRando m(); | |
81 | } | |
82 | b = new byte[48]; | |
83 | random.n extBytes(b ); | |
84 | } | |
85 | b[ 0] = (byte )spec.getM ajorVersio n(); | |
86 | b[ 1] = (byte )spec.getM inorVersio n(); | |
87 | ||
88 | re turn new S ecretKeySp ec(b, "Tls RsaPremast erSecret") ; | |
89 | } | |
90 | ||
91 | } |
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