Abstract: A method of sharing secure content in a group may include receiving a one-time pad (OTP) key. The method may include encrypting content using the OTP key. The encrypting may include generating intermediate codes from the content and the OTP key. The encrypting may also include adding a first common constant to each of the intermediate codes to generate a corresponding encrypted code that includes a predetermined number of digits. The method may include sending encrypted content that includes encrypted codes corresponding to the intermediate codes.