StackOverflow2013

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plurals

PO
primarykey
Id
13067141
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2012-10-25T11:00:02.480
FavoriteCount
0
LastActivityDate
2015-02-25T18:30:33.327
LastEditDate
2015-02-25T18:30:33.327
LastEditorUserId
846089
OwnerUserId
1533803
ParentId
13066762
PostTypeId
2
Score
4
ViewCount
0
LastEditorDisplayName
text
Body
<pre><code>public class Crypto { public static String encrypt(String value, String key) throws GeneralSecurityException { SecretKeySpec sks = new SecretKeySpec(hexStringToByteArray(key), "AES"); Cipher cipher = Cipher.getInstance("AES"); cipher.init(Cipher.ENCRYPT_MODE, sks, cipher.getParameters()); byte[] encrypted = cipher.doFinal(value.getBytes()); return byteArrayToHexString(encrypted); } public static String decrypt(String message, String key) throws GeneralSecurityException { SecretKeySpec sks = new SecretKeySpec(hexStringToByteArray(key), "AES"); Cipher cipher = Cipher.getInstance("AES"); cipher.init(Cipher.DECRYPT_MODE, sks); byte[] decrypted = cipher.doFinal(hexStringToByteArray(message)); return new String(decrypted); } private static String byteArrayToHexString(byte[] b){ StringBuffer sb = new StringBuffer(b.length * 2); for (int i = 0; i < b.length; i++){ int v = b[i] & 0xff; if (v < 16) { sb.append('0'); } sb.append(Integer.toHexString(v)); } return sb.toString().toUpperCase(); } private static byte[] hexStringToByteArray(String s) { byte[] b = new byte[s.length() / 2]; for (int i = 0; i < b.length; i++){ int index = i * 2; int v = Integer.parseInt(s.substring(index, index + 2), 16); b[i] = (byte)v; } return b; } } </code></pre> <p>above class will help in encrypt and decrypt string without base64</p> <p>usage of above class </p> <pre><code>try { String key = UUID.randomUUID().toString().replaceAll("-", ""); String src = "Hello world!"; String tag1 = Crypto.encrypt(src, key); String tag2 = Crypto.decrypt(tag1, key); logger.info(src); logger.info(tag1); logger.info(tag2); } catch (Exception e) { logger.error("", e); } </code></pre>
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Title
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1. This table or related slice is empty.
PostParentId
1. PO"IllegalArgumentException: bad base-64" while trying to use Base64 on Android 1.5
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  PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USDharma Kshetri
UserOwnerUserId
1. USVenkatesh S
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PostsAcceptedAnswerId
1. PO"IllegalArgumentException: bad base-64" while trying to use Base64 on Android 1.5
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1. VO
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2. VO
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