DE89897C - - Google Patents

Description

IMPERIAL

PATENTAM

The 1796 by Hin d e η b u r g in his "Archive of pure and applied mathematics", Book 3 and 5 described the way to write secretly through grids, became the middle of the The seventies brought back to mind by L. Flamm's "Kryptograph". That the Cryptograph, a simple writing grid, or a template with just that for a simple one The writing grid necessary for writing openings, soon forgotten again, is, among other things, due to the fact that this apparatus does not take full advantage of the The principles underlying grid writing allowed it to be factory-made became and, as the actual key of the grid script, very much by all correspondents must be kept carefully.

Fleifsner later published in his. "Handbook of Cryptography", Vienna 1881, a new "cartridge secret", which, however, is based on the same principles as the Grid writing and the cryptograph. But this process also has its downsides because the correspondent event, are forced to use finished »cartridges« (simple writing grids), cartridge blanks, Complicanten and Recomplicanten, a punch, etc. to keep resp. to carry with you.

The abovementioned inconveniences are kept secret through my new procedure, through bars writing, eliminated, because it differs from what has been known hitherto in that the writing grids necessary for drafting a secret message (Hindenburg's "grid", Flamm's "cryptograph", Fleifsner's "cartridge" or "key") in a very short time and inconspicuously with pencil lines or something that can be removed after using the grid Sign on a full lattice is noted that one can with the help of a key pattern produces a key from which it can be seen exactly how that is necessary for deciphering To set up a grid is to event this key as you write a communication or so concealed afterwards in this, that the same for the uninitiated it cannot be found that one can use special writing surfaces or writing boards is able to with the greatest possible space constraint and on. one and the same writing surface several messages between to write to one another without making it more difficult for the initiated to decipher and that, if the one required to practice this secret writing procedure, it is very simple Apparatus is kept in order, it contains nothing to betray the Correspondence could contribute.

The apparatus to be used to carry out my procedure is the full grid, the writing grids and the key patterns and the writing pads or the writing boards. All apparatus can be made of material such as pencil, slate pen, or other characters can be easily removed, i.e. made of parchment, thin sheet metal or cardboard, which is covered with parchment, Are covered with slate or similar imitations, made of celluloid plates and so on.

The following description of my process is using a full square grid 6 χ 6 = 36 writing openings based on

lays; It goes without saying, however, that full grids with any number of writing openings can be used can use.

The full grid (Fig. I), which can be square, rectangular or otherwise shaped, contains openings (holes) of the same size and shape at equal distances from one another, the writing openings. The four corners of the square full grid are at the front with the numbers i, 2, 3 and 4, in the case of the rectangular one are the upper left and the lower right corner of the front with the numbers 1 respectively. 2 and the same corners of the back with the numbers 3 respectively. 4 provided.

The writing grid and key patterns can each form a special pattern, but they can also be combined on one board (Fig. 2). ' If you put the full grid in the upper left corner of this figure, labeled 1, then the pattern for square The writing grille is visible through the writing openings. On this' are the four innermost squares with i, these four rows of squares in a circumferential direction Sequence with the numbers 1 to 3 and the following series with 1 to 5. It will Full grid placed in the upper right corner (2) of Fig. 2, so comes one for the design of a rectangular writing grid reveals a useful pattern. Here they run Numbers in ascending and descending periods. If you put the full grid in the corners 3 respectively. 4th 2 shows the key patterns. The corresponding squares are row by row at 3 with the numbers 1 to 6 and at 4 with 6 to ι.

The writing surfaces or writing boards can be of any size; usually they have but the same format as Fig. 2 and are then either like this within a The outer frame is divided into smaller squares or simply by the outer frame limited. The corners of the writing surfaces are, like FIG. 2, with the numbers 1 to 4 provided.

The design of the writing and deciphering grids is done in the following way. Acts If the grid is square, the full grid is placed in corner 1 of FIG. 2 and edging it with a pencil, etc., after every four corresponding rows of squares of the visible pattern as many writing openings in the full grid as different numbers in these rows of squares are present. So of the four innermost writing openings becomes only one unchanged, in each of the four rows next to it one of the rows marked by 1, 2 and 3 marked openings etc. Used to design a rectangular writing grid you can look at a pattern as it becomes visible when you put the full grille in the corner 2 of Fig. 2 sets. The top and bottom rows contain the numbers 1, 2, 3, 3, 2, i, the second and the penultimate row the numbers 2, 3, 4, 4, 3, 2 etc. With the help of one such a pattern is framed after two equally numbered lines (e.g. the top and bottom etc.) as many writing openings as different numbers in occur in these series. The ones noted on the front of the rectangular full grid Writing openings must also be marked on the back of the same.

If you put the full grid in the corners 3 respectively. 4 of Fig. 2, all openings are marked row by row by the numbers 1 to 6 or, conversely, 6 to 1, and one can therefore use these numbers row by row to indicate exactly which openings. of the full grid are decisive for the deciphering of a certain grid font and must therefore be bordered. In some cases, however, it is advisable to choose other or even better letters instead of these numbers. Since it can also happen that z. B. The writing openings 1 and 3 and, in the following, the writing opening 6 are bordered, so it is necessary, to avoid errors, to choose two rows of letters for the key and to use these rows alternately. And since it is also not impossible that not a single opening is noted in one or more rows of a full grid, this must be indicated each time by a special, superfluous key letter. This is illustrated in the following diagram, in that the first twelve letters of the alphabet are used for the letter evaluation of the numbers 1 to 6 of the key pattern and the thirteenth letter fnj 'is used for any conspicuous row of the full grid (o) (see also Fig. 3 ).

α bed ef
1234560
gh ik ■ I m n.

The key can also be hidden in a grid font so that others cannot find it, that first the individual key letters in an agreed manner, be it in diagonal direction, be it in a zigzag or as a specific group, through the full grid be written down on the pad and then the actual communication follow with the help of the writing grid.

Just like one on a writing pad, if the format of the same in some degree Relation to the size of the full grille and to the diameter of the writing openings and the distance between them

Claims (1)

can combine four different patterns (Fig. 2), you can also write four times through a writing grid or even once on a surface using four different writing grids and thus mix four grid fonts together if you place the writing grid one after the other in the four corners of the surface moves. If the full grid is lost or unusable, the following procedure can be followed. A piece of tracing paper or the like corresponding to the size of the full grid is taken and, after the fields corresponding to a grid pattern have been noted on the grid pattern (FIGS. 2, 1 and 2), it is placed on the pattern prepared in this way. Then the message is written on the transparent overlay while observing the necessary rotations of the pattern, as is usually the case with grid writing. Otherwise, the procedure is known. Pa τ ε nt claims: 1. A method that makes writing or writing necessary for grid writing. Note the deciphering grid on the full grid (Fig. 1), use a key made up of two or more rows of letters or numbers to indicate line by line which writing openings in the full grid were or should be used to draw up a grid script, to hide the key in the message with the aid of the full grid and to write several messages one after the other on a writing surface.
An embodiment of the above-mentioned method, consisting in that a writing grid is noted on a writing grid pattern (Fig. 2, 1 or 2), a translucent material (tracing paper or the like) is placed over it and that the secret message after the noted writing grid is placed on the translucent one Material is written. To carry out the method identified under 1. the full grids mentioned there with the writing openings spaced at equal distances from one another, the writing grid and key patterns (FIGS. 2 and 3), which bezw in the design of the writing grids. Keys serve as a base, and the writing boards or writing surfaces, the format of which is in a certain proportion to the size of the solid grid, as well as to the diameter of the writing openings and the distance between them. 1 sheet of drawings.