A cryptographic machine, which changed the cipher automatically and printed a message, entirely unintelligible until translated by a duplicate instrument, was one of the most perfect examples of this.
On the other hand, grammatical and constructional examples may be cited from other more modern agglutinative idioms, in order to establish the truly linguistic character of the Sumerian peculiarities and to disprove the Halevyan contentions that Sumerian is really not a language at a11.4 It is not surprising that Halevy's view as to the cryptographic nature of Sumerian should have arisen.
The basics of confidentiality, authentication, and some major cryptographic algorithms are outlined in chapter two.
The topic for this tutorial will be cryptographic protocols.
Instead of wood or bricks, for example cryptographic methods or digital watermarks can be employed.