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annotate app/src/main/java/ch/ethz/ssh2/crypto/PEMDecoder.java @ 463:6dff6933879c stable-1.9.3-4

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fixup documentation
author Carl Byington <carl@five-ten-sg.com>
date Sun, 28 Apr 2019 18:23:49 -0700
parents d29cce60f393
children
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1
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2 package ch.ethz.ssh2.crypto;
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3
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4 import java.io.BufferedReader;
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5 import java.io.CharArrayReader;
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6 import java.io.IOException;
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7 import java.math.BigInteger;
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8 import java.security.DigestException;
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9 import java.security.KeyFactory;
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10 import java.security.KeyPair;
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11 import java.security.MessageDigest;
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12 import java.security.NoSuchAlgorithmException;
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13 import java.security.PrivateKey;
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14 import java.security.PublicKey;
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15 import java.security.spec.DSAPrivateKeySpec;
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16 import java.security.spec.DSAPublicKeySpec;
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17 import java.security.spec.ECParameterSpec;
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18 import java.security.spec.ECPoint;
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19 import java.security.spec.ECPrivateKeySpec;
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20 import java.security.spec.ECPublicKeySpec;
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21 import java.security.spec.InvalidKeySpecException;
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22 import java.security.spec.KeySpec;
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23 import java.security.spec.RSAPrivateCrtKeySpec;
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24 import java.security.spec.RSAPrivateKeySpec;
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25 import java.security.spec.RSAPublicKeySpec;
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27 import ch.ethz.ssh2.crypto.cipher.AES;
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28 import ch.ethz.ssh2.crypto.cipher.BlockCipher;
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29 import ch.ethz.ssh2.crypto.cipher.CBCMode;
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30 import ch.ethz.ssh2.crypto.cipher.DES;
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31 import ch.ethz.ssh2.crypto.cipher.DESede;
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32 import ch.ethz.ssh2.signature.ECDSASHA2Verify;
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34 /**
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35 * PEM Support.
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36 *
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37 * @author Christian Plattner, plattner@trilead.com
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38 * @version $Id: PEMDecoder.java,v 1.2 2008/04/01 12:38:09 cplattne Exp $
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39 */
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40 public class PEMDecoder {
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41 public static final int PEM_RSA_PRIVATE_KEY = 1;
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42 public static final int PEM_DSA_PRIVATE_KEY = 2;
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43 public static final int PEM_EC_PRIVATE_KEY = 3;
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45 private static final int hexToInt(char c) {
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46 if ((c >= 'a') && (c <= 'f')) {
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47 return (c - 'a') + 10;
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48 }
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50 if ((c >= 'A') && (c <= 'F')) {
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51 return (c - 'A') + 10;
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52 }
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54 if ((c >= '0') && (c <= '9')) {
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55 return (c - '0');
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56 }
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58 throw new IllegalArgumentException("Need hex char");
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59 }
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60
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61 private static byte[] hexToByteArray(String hex) {
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62 if (hex == null)
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63 throw new IllegalArgumentException("null argument");
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65 if ((hex.length() % 2) != 0)
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66 throw new IllegalArgumentException("Uneven string length in hex encoding.");
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67
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68 byte decoded[] = new byte[hex.length() / 2];
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70 for (int i = 0; i < decoded.length; i++) {
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71 int hi = hexToInt(hex.charAt(i * 2));
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72 int lo = hexToInt(hex.charAt((i * 2) + 1));
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73 decoded[i] = (byte)(hi * 16 + lo);
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74 }
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76 return decoded;
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77 }
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78
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79 private static byte[] generateKeyFromPasswordSaltWithMD5(byte[] password, byte[] salt, int keyLen)
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80 throws IOException {
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81 if (salt.length < 8)
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82 throw new IllegalArgumentException("Salt needs to be at least 8 bytes for key generation.");
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83
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84 MessageDigest md5;
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85
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86 try {
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87 md5 = MessageDigest.getInstance("MD5");
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88 }
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89 catch (NoSuchAlgorithmException e) {
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90 throw new IllegalArgumentException("VM does not support MD5", e);
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91 }
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92
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93 byte[] key = new byte[keyLen];
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94 byte[] tmp = new byte[md5.getDigestLength()];
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95
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96 while (true) {
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97 md5.update(password, 0, password.length);
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98 md5.update(salt, 0, 8); // ARGH we only use the first 8 bytes of the
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99 // salt in this step.
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100 // This took me two hours until I got AES-xxx running.
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101 int copy = (keyLen < tmp.length) ? keyLen : tmp.length;
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102
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103 try {
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104 md5.digest(tmp, 0, tmp.length);
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105 }
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106 catch (DigestException e) {
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107 IOException ex = new IOException("could not digest password");
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108 ex.initCause(e);
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109 throw ex;
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110 }
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111
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112 System.arraycopy(tmp, 0, key, key.length - keyLen, copy);
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113 keyLen -= copy;
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114
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115 if (keyLen == 0)
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116 return key;
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117
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118 md5.update(tmp, 0, tmp.length);
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119 }
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120 }
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121
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122 private static byte[] removePadding(byte[] buff, int blockSize) throws IOException {
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123 /* Removes RFC 1423/PKCS #7 padding */
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124 int rfc_1423_padding = buff[buff.length - 1] & 0xff;
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125
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126 if ((rfc_1423_padding < 1) || (rfc_1423_padding > blockSize))
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127 throw new IOException("Decrypted PEM has wrong padding, did you specify the correct password?");
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128
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129 for (int i = 2; i <= rfc_1423_padding; i++) {
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130 if (buff[buff.length - i] != rfc_1423_padding)
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131 throw new IOException("Decrypted PEM has wrong padding, did you specify the correct password?");
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132 }
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133
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134 byte[] tmp = new byte[buff.length - rfc_1423_padding];
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135 System.arraycopy(buff, 0, tmp, 0, buff.length - rfc_1423_padding);
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136 return tmp;
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137 }
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138
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139 public static final PEMStructure parsePEM(char[] pem) throws IOException {
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140 PEMStructure ps = new PEMStructure();
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diff changeset
141 String line = null;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
142 BufferedReader br = new BufferedReader(new CharArrayReader(pem));
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
143 String endLine = null;
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
144
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
145 while (true) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
146 line = br.readLine();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
147
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
148 if (line == null)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
149 throw new IOException("Invalid PEM structure, '-----BEGIN...' missing");
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
150
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
151 line = line.trim();
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
152
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
153 if (line.startsWith("-----BEGIN DSA PRIVATE KEY-----")) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
154 endLine = "-----END DSA PRIVATE KEY-----";
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
155 ps.pemType = PEM_DSA_PRIVATE_KEY;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
156 break;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
157 }
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
158
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
159 if (line.startsWith("-----BEGIN RSA PRIVATE KEY-----")) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
160 endLine = "-----END RSA PRIVATE KEY-----";
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
161 ps.pemType = PEM_RSA_PRIVATE_KEY;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
162 break;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
163 }
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
164
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
165 if (line.startsWith("-----BEGIN EC PRIVATE KEY-----")) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
166 endLine = "-----END EC PRIVATE KEY-----";
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
167 ps.pemType = PEM_EC_PRIVATE_KEY;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
168 break;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
169 }
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
170 }
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
171
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
172 while (true) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
173 line = br.readLine();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
174
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
175 if (line == null)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
176 throw new IOException("Invalid PEM structure, " + endLine + " missing");
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
177
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
178 line = line.trim();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
179 int sem_idx = line.indexOf(':');
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
180
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
181 if (sem_idx == -1)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
182 break;
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
183
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
184 String name = line.substring(0, sem_idx + 1);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
185 String value = line.substring(sem_idx + 1);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
186 String values[] = value.split(",");
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
187
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
188 for (int i = 0; i < values.length; i++)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
189 values[i] = values[i].trim();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
190
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
191 // Proc-Type: 4,ENCRYPTED
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
192 // DEK-Info: DES-EDE3-CBC,579B6BE3E5C60483
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
193
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
194 if ("Proc-Type:".equals(name)) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
195 ps.procType = values;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
196 continue;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
197 }
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
198
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
199 if ("DEK-Info:".equals(name)) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
200 ps.dekInfo = values;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
201 continue;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
202 }
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
203
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
204 /* Ignore line */
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
205 }
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
206
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
207 StringBuffer keyData = new StringBuffer();
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
208
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
209 while (true) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
210 if (line == null)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
211 throw new IOException("Invalid PEM structure, " + endLine + " missing");
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
212
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
213 line = line.trim();
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
214
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
215 if (line.startsWith(endLine))
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
216 break;
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
217
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
218 keyData.append(line);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
219 line = br.readLine();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
220 }
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
221
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
222 char[] pem_chars = new char[keyData.length()];
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
223 keyData.getChars(0, pem_chars.length, pem_chars, 0);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
224 ps.data = Base64.decode(pem_chars);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
225
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
226 if (ps.data.length == 0)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
227 throw new IOException("Invalid PEM structure, no data available");
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
228
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
229 return ps;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
230 }
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
231
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
232 private static final void decryptPEM(PEMStructure ps, byte[] pw) throws IOException {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
233 if (ps.dekInfo == null)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
234 throw new IOException("Broken PEM, no mode and salt given, but encryption enabled");
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
235
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
236 if (ps.dekInfo.length != 2)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
237 throw new IOException("Broken PEM, DEK-Info is incomplete!");
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
238
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
239 String algo = ps.dekInfo[0];
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
240 byte[] salt = hexToByteArray(ps.dekInfo[1]);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
241 BlockCipher bc = null;
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
242
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
243 if (algo.equals("DES-EDE3-CBC")) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
244 DESede des3 = new DESede();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
245 des3.init(false, generateKeyFromPasswordSaltWithMD5(pw, salt, 24));
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
246 bc = new CBCMode(des3, salt, false);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
247 }
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
248 else if (algo.equals("DES-CBC")) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
249 DES des = new DES();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
250 des.init(false, generateKeyFromPasswordSaltWithMD5(pw, salt, 8));
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
251 bc = new CBCMode(des, salt, false);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
252 }
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
253 else if (algo.equals("AES-128-CBC")) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
254 AES aes = new AES();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
255 aes.init(false, generateKeyFromPasswordSaltWithMD5(pw, salt, 16));
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
256 bc = new CBCMode(aes, salt, false);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
257 }
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
258 else if (algo.equals("AES-192-CBC")) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
259 AES aes = new AES();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
260 aes.init(false, generateKeyFromPasswordSaltWithMD5(pw, salt, 24));
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
261 bc = new CBCMode(aes, salt, false);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
262 }
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
263 else if (algo.equals("AES-256-CBC")) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
264 AES aes = new AES();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
265 aes.init(false, generateKeyFromPasswordSaltWithMD5(pw, salt, 32));
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
266 bc = new CBCMode(aes, salt, false);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
267 }
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
268 else {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
269 throw new IOException("Cannot decrypt PEM structure, unknown cipher " + algo);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
270 }
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
271
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
272 if ((ps.data.length % bc.getBlockSize()) != 0)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
273 throw new IOException("Invalid PEM structure, size of encrypted block is not a multiple of "
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
274 + bc.getBlockSize());
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
275
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
276 /* Now decrypt the content */
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
277 byte[] dz = new byte[ps.data.length];
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
278
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
279 for (int i = 0; i < ps.data.length / bc.getBlockSize(); i++) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
280 bc.transformBlock(ps.data, i * bc.getBlockSize(), dz, i * bc.getBlockSize());
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
281 }
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
282
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
283 /* Now check and remove RFC 1423/PKCS #7 padding */
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
284 dz = removePadding(dz, bc.getBlockSize());
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
285 ps.data = dz;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
286 ps.dekInfo = null;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
287 ps.procType = null;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
288 }
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
289
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
290 public static final boolean isPEMEncrypted(PEMStructure ps) throws IOException {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
291 if (ps.procType == null)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
292 return false;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
293
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
294 if (ps.procType.length != 2)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
295 throw new IOException("Unknown Proc-Type field.");
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
296
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
297 if ("4".equals(ps.procType[0]) == false)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
298 throw new IOException("Unknown Proc-Type field (" + ps.procType[0] + ")");
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
299
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
300 if ("ENCRYPTED".equals(ps.procType[1]))
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
301 return true;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
302
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
303 return false;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
304 }
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
305
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
306 public static KeyPair decode(char[] pem, String password) throws IOException {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
307 PEMStructure ps = parsePEM(pem);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
308 return decode(ps, password);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
309 }
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
310
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
311 public static KeyPair decode(PEMStructure ps, String password) throws IOException {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
312 if (isPEMEncrypted(ps)) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
313 if (password == null)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
314 throw new IOException("PEM is encrypted, but no password was specified");
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
315
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
316 decryptPEM(ps, password.getBytes("ISO-8859-1"));
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
317 }
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
318
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
319 if (ps.pemType == PEM_DSA_PRIVATE_KEY) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
320 SimpleDERReader dr = new SimpleDERReader(ps.data);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
321 byte[] seq = dr.readSequenceAsByteArray();
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
322
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
323 if (dr.available() != 0)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
324 throw new IOException("Padding in DSA PRIVATE KEY DER stream.");
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
325
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
326 dr.resetInput(seq);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
327 BigInteger version = dr.readInt();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
328
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
329 if (version.compareTo(BigInteger.ZERO) != 0)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
330 throw new IOException("Wrong version (" + version + ") in DSA PRIVATE KEY DER stream.");
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
331
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
332 BigInteger p = dr.readInt();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
333 BigInteger q = dr.readInt();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
334 BigInteger g = dr.readInt();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
335 BigInteger y = dr.readInt();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
336 BigInteger x = dr.readInt();
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
337
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
338 if (dr.available() != 0)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
339 throw new IOException("Padding in DSA PRIVATE KEY DER stream.");
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
340
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
341 DSAPrivateKeySpec privSpec = new DSAPrivateKeySpec(x, p, q, g);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
342 DSAPublicKeySpec pubSpec = new DSAPublicKeySpec(y, p, q, g);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
343 return generateKeyPair("DSA", privSpec, pubSpec);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
344 }
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
345
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
346 if (ps.pemType == PEM_RSA_PRIVATE_KEY) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
347 SimpleDERReader dr = new SimpleDERReader(ps.data);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
348 byte[] seq = dr.readSequenceAsByteArray();
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
349
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
350 if (dr.available() != 0)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
351 throw new IOException("Padding in RSA PRIVATE KEY DER stream.");
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
352
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
353 dr.resetInput(seq);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
354 BigInteger version = dr.readInt();
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
355
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
356 if ((version.compareTo(BigInteger.ZERO) != 0) && (version.compareTo(BigInteger.ONE) != 0))
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
357 throw new IOException("Wrong version (" + version + ") in RSA PRIVATE KEY DER stream.");
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
358
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
359 BigInteger n = dr.readInt();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
360 BigInteger e = dr.readInt();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
361 BigInteger d = dr.readInt();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
362 // TODO: is this right?
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
363 BigInteger primeP = dr.readInt();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
364 BigInteger primeQ = dr.readInt();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
365 BigInteger expP = dr.readInt();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
366 BigInteger expQ = dr.readInt();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
367 BigInteger coeff = dr.readInt();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
368 RSAPrivateKeySpec privSpec = new RSAPrivateCrtKeySpec(n, e, d, primeP, primeQ, expP, expQ, coeff);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
369 RSAPublicKeySpec pubSpec = new RSAPublicKeySpec(n, e);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
370 return generateKeyPair("RSA", privSpec, pubSpec);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
371 }
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
372
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
373 if (ps.pemType == PEM_EC_PRIVATE_KEY) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
374 SimpleDERReader dr = new SimpleDERReader(ps.data);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
375 byte[] seq = dr.readSequenceAsByteArray();
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
376
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
377 if (dr.available() != 0)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
378 throw new IOException("Padding in EC PRIVATE KEY DER stream.");
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
379
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
380 dr.resetInput(seq);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
381 BigInteger version = dr.readInt();
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
382
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
383 if ((version.compareTo(BigInteger.ONE) != 0))
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
384 throw new IOException("Wrong version (" + version + ") in EC PRIVATE KEY DER stream.");
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
385
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
386 byte[] privateBytes = dr.readOctetString();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
387 String curveOid = null;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
388 byte[] publicBytes = null;
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
389
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
390 while (dr.available() > 0) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
391 int type = dr.readConstructedType();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
392 SimpleDERReader cr = dr.readConstructed();
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
393
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
394 switch (type) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
395 case 0:
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
396 curveOid = cr.readOid();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
397 break;
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
398
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
399 case 1:
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
400 publicBytes = cr.readOctetString();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
401 break;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
402 }
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
403 }
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
404
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
405 ECParameterSpec params = ECDSASHA2Verify.getCurveForOID(curveOid);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
406
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
407 if (params == null)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
408 throw new IOException("invalid OID");
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
409
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
410 BigInteger s = new BigInteger(privateBytes);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
411 byte[] publicBytesSlice = new byte[publicBytes.length - 1];
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
412 System.arraycopy(publicBytes, 1, publicBytesSlice, 0, publicBytesSlice.length);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
413 ECPoint w = ECDSASHA2Verify.decodeECPoint(publicBytesSlice, params.getCurve());
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
414 ECPrivateKeySpec privSpec = new ECPrivateKeySpec(s, params);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
415 ECPublicKeySpec pubSpec = new ECPublicKeySpec(w, params);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
416 return generateKeyPair("EC", privSpec, pubSpec);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
417 }
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
418
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
419 throw new IOException("PEM problem: it is of unknown type");
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
420 }
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
421
275
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
422 /**
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
423 * Generate a {@code KeyPair} given an {@code algorithm} and {@code KeySpec}.
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
424 */
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
425 private static KeyPair generateKeyPair(String algorithm, KeySpec privSpec, KeySpec pubSpec)
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
426 throws IOException {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
427 try {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
428 final KeyFactory kf = KeyFactory.getInstance(algorithm);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
429 final PublicKey pubKey = kf.generatePublic(pubSpec);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
430 final PrivateKey privKey = kf.generatePrivate(privSpec);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
431 return new KeyPair(pubKey, privKey);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
432 }
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
433 catch (NoSuchAlgorithmException ex) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
434 IOException ioex = new IOException();
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
435 ioex.initCause(ex);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
436 throw ioex;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
437 }
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
438 catch (InvalidKeySpecException ex) {
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
439 IOException ioex = new IOException("invalid keyspec");
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
440 ioex.initCause(ex);
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
441 throw ioex;
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
442 }
03ae56b26003 start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents: 273
diff changeset
443 }
273
91a31873c42a start conversion from trilead to ganymed
Carl Byington <carl@five-ten-sg.com>
parents:
diff changeset
444 }