An encryption communication apparatus of the present invention is embodied, for example, by a facsimile machine. A document original of plural pages set on the facsimile machine is read by a scanner section, and converted into image data on a page-by-page basis. A value N1 represents the second of the...http://www.google.de/patents/US5535277?utm_source=gb-gplus-sharePatent US5535277 - Encryption communication apparatus
