A method for the interception-proof transmission of at least one cryptographic parameter from a user to an encrypted offline storage medium, comprising steps of: - cloaking an upward portion of a substrate with an upper plate, wherein said upper plate comprises a multitude of indicia, wherein each indicium has a corresponding manipulation indicator; - sequentially positioning a manipulation apparatus over one or more of the manipulation indicators; - mechanically manipulating the substrate, after each sequential positioning of the manipulation apparatus, using said manipulation apparatus, wherein the manipulation indicator of the desired indicium overlaps with one mechanical manipulation unit of the substrate; and characterized in that said multitude of indicia are provided in a number of encryption units on the upper plate, whereby the number of encryption units is at least equal to a character length of the at least one cryptographic parameter and whereby each of said number of encryption units comprises at least an equal number of indicia to a number of characters in a writing system of the at least one cryptographic parameter, whereby the indicia of each encryption unit correspond with a random sequence of each of the characters in said writing system; the method further comprising, for each encryption unit, the steps of: - positioning the manipulation apparatus over a manipulation indicator corresponding to a desired indicium, whereby said desired indicium corresponds with a current character of the at least one cryptographic parameter and whereby said current character has a character number corresponding to a current encryption unit number; and - mechanically manipulating the substrate, after said positioning of the manipulation apparatus, using said manipulation apparatus; - deconstructing said substrate in two or more complementary units, wherein said complementary units each comprises at least one mechanical manipulation unit. - cloaking an upward portion of a substrate with an upper plate, wherein said upper plate comprises a multitude of indicia, wherein each indicium has a corresponding manipulation indicator; - sequentially positioning a manipulation apparatus over one or more of the manipulation indicators; - mechanically manipulating the substrate, after each sequential positioning of the manipulation apparatus, using said manipulation apparatus, wherein the manipulation indicator of the desired indicium overlaps with one mechanical manipulation unit of the substrate; and characterized in that said multitude of indicia are provided in a number of encryption units on the upper plate, whereby the number of encryption units is at least equal to a character length of the at least one cryptographic parameter and whereby each of said number of encryption units comprises at least an equal number of indicia to a number of characters in a writing system of the at least one cryptographic parameter, whereby the indicia of each encryption unit correspond with a random sequence of each of the characters in said writing system; the method further comprising, for each encryption unit, the steps of: - positioning the manipulation apparatus over a manipulation indicator corresponding to a desired indicium, whereby said desired indicium corresponds with a current character of the at least one cryptographic parameter and whereby said current character has a character number corresponding to a current encryption unit number; and - mechanically manipulating the substrate, after said positioning of the manipulation apparatus, using said manipulation apparatus; - deconstructing said substrate in two or more complementary units, wherein said complementary units each comprises at least one mechanical manipulation unit. characterized in that said multitude of indicia are provided in a number of encryption units on the upper plate, whereby the number of encryption units is at least equal to a character length of the at least one cryptographic parameter and whereby each of said number of encryption units comprises at least an equal number of indicia to a number of characters in a writing system of the at least one cryptographic parameter, whereby the indicia of each encryption unit correspond with a random sequence of each of the characters in said writing system; the method further comprising, for each encryption unit, the steps of: - positioning the manipulation apparatus over a manipulation indicator corresponding to a desired indicium, whereby said desired indicium corresponds with a current character of the at least one cryptographic parameter and whereby said current character has a character number corresponding to a current encryption unit number; and - mechanically manipulating the substrate, after said positioning of the manipulation apparatus, using said manipulation apparatus; - deconstructing said substrate in two or more complementary units, wherein said complementary units each comprises at least one mechanical manipulation unit. - positioning the manipulation apparatus over a manipulation indicator corresponding to a desired indicium, whereby said desired indicium corresponds with a current character of the at least one cryptographic parameter and whereby said current character has a character number corresponding to a current encryption unit number; and - mechanically manipulating the substrate, after said positioning of the manipulation apparatus, using said manipulation apparatus; - deconstructing said substrate in two or more complementary units, wherein said complementary units each comprises at least one mechanical manipulation unit.