FIELD: communication facilities.
SUBSTANCE: invention elates to field defense data network, particularly to transmission methods of electronic messages, preferentially emails. Essence of invention is that from the first user, allowing the first terminal, to the second user, allowing the second terminal, it is transmitted email in encode form by the first terminal. Encoded email is ciphered by means of key, formed by the first key gun, using seed; provide to the second user seed for formation of key by means of the second key gun, provided in the second terminal; it is provided and saved seed in the second terminal; it is used seed by the second terminal for generation of key each time, when it is received scrambled email from the first user to the second user; synchronise value of metre in each terminal; and is generated key on the basis of seed and value of metre in each terminal, independently of the other terminal.
EFFECT: providing protection in email transmission system without necessity of reuse of passwords or personal keys.
25 cl, 4 dwg
