Android Snippet: MAking a md5 hash from a string in Java
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Android Snippet: MAking a md5 hash from a string in Java
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Security is always an issue when you connect your application to the web. Here is a nice little method that will let you implement md5 encryption.
private String md5(String in) {
MessageDigest digest;
try {
digest = MessageDigest.getInstance("MD5");
digest.reset();
digest.update(in.getBytes());
byte[] a = digest.digest();
int len = a.length;
StringBuilder sb = new StringBuilder(len << 1);
for (int i = 0; i < len; i++) {
sb.append(Character.forDigit((a[i] & 0xf0) >> 4, 16));
sb.append(Character.forDigit(a[i] & 0x0f, 16));
}
return sb.toString();
} catch (NoSuchAlgorithmException e) { e.printStackTrace(); }
return null;
}
How to use:
String unsecurepassword = "unhackablepassword"; String securepassword = md5(unsecurepassword );Please mind that md5 is not decryptable. If you need an encryption that you can reverse you will have to look into something other then md5. ( AES for example)
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