초록 ▼

A method for permitting the secure handling of data between two remote stations firstly involves the generation of an encrypted decryption key which is based on a fingerprint information signal from a user of a first station, a fingerprint information signal from a user of a second station, and a ke

A method for permitting the secure handling of data between two remote stations firstly involves the generation of an encrypted decryption key which is based on a fingerprint information signal from a user of a first station, a fingerprint information signal from a user of a second station, and a key representing function derived from a random key. The encrypted decryption key is of the type with the property that when it is written to a spatial light modulator (SLM) of an optical correlator, the output of the correlator is similar when input with either one of the fingerprint information signals. The encrypted key is then stored at both stations. Thereafter a message encrypted with the key may be decrypted at either station by retrieving the encrypted key, writing the encrypted key to a filter of an optical correlator, inputting one of the fingerprint information signals to the correlator in order to allow recovery of the decryption key, and applying the decryption key to the encrypted message.

대표청구항 ▼

[ What is claimed is:] [1.] A method for permitting the secure passing of data between two remote stations, comprising the steps of:obtaining from a user of a first of two remote stations, a first characteristic information signal;obtaining from a user of a second of two remote stations, a second ch

[ What is claimed is:] [1.] A method for permitting the secure passing of data between two remote stations, comprising the steps of:obtaining from a user of a first of two remote stations, a first characteristic information signal;obtaining from a user of a second of two remote stations, a second characteristic information signal;generating a sequence of random characters to obtain a random key;obtaining a key function which represents said key;obtaining a Fourier transform of said key representing function;obtaining at least one encrypted version of said key based on said Fourier transform of said key representing function, and a least one of said first characteristic information signal and said second characteristic information signal such that said key may be recovered by writing said at least one encrypted version of said encrypted key to a correlator and inputting either one of said first characteristic information signal and said second characteristic information signal to said correlator;storing said at least one encrypted version of said key at each of said first station and said second station, whereby thereafter any message encrypted in such a way that it may be decrypted by said key may be decrypted at either of said two remote stations by retrieving said stored encrypted key, writing said at least one encrypted version of said encrypted key to a correlator and inputting either one of said first characteristic information signal and said second characteristic information signal to said correlator.