Andreoid MD5加密
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MD5加密取16位:
MessageDigest messageDigest = null;
try {
messageDigest = MessageDigest.getInstance("MD5");
messageDigest.reset();
messageDigest.update(str.getBytes(“UTF-8”);
} catch (Exception e) {
Log.e("Error", e.getMessage());
}
byte[] byteArray = messageDigest.digest();
StringBuffer stringBuffer = new StringBuffer();
for (int i = 0; i < byteArray.length; i++) {
if (Integer.toHexString(0xFF & byteArray[i]).length() == 1) stringBuffer.append("0").append(Integer.toHexString(0xFF & byteArray[i]));
else stringBuffer.append(Integer.toHexString(0xFF & byteArray[i]));
}
// 16 byte
return stringBuffer.substring(8, 24).toString().toUpperCase();