Abstract: Systems and methods for bridging gaps in cryptographic secret distribution using line-of-sight-secured networks are disclosed. In one embodiment, a system may include: a first physical location providing a cryptographic secret; a second physical location comprising a space-based vehicle transceiver that receives the cryptographic secret from the first physical location over a secure communication channel; a space-based vehicle that receives the cryptographic secret from the second physical location over a first line-of-sight communication channel; and a third physical location that receives the cryptographic secret from the space-based vehicle over a second line-of-sight communication channel, encrypts data with the cryptographic secret, and communicates the encrypted data to the first physical location over a communication network; wherein the first physical location receives the encrypted data and decrypts the encrypted data using the cryptographic secret.

Abstract: A method may include: receiving, by a webserver computer program, shared key material shared with a client application; receiving from a browser, a request for a secure connection; establishing a session with the browser over a first secure connection; establishing a shared secret key with the browser, wherein the browser creates a browser secret key encrypted with the shared secret key, encrypts the browser secret key with the shared secret key, and provides the browser secret key encrypted with the shared secret key and session information the client application over a second secure connection that is protected with the shared key material; decrypting the browser secret key encrypted with the shared secret key using the shared secret key; identifying the session with the browser from the session information; and establishing, end-to-end encryption on top of the second secure connection using the browser secret key or a derivation thereof.

Abstract: Systems and methods for secure cryptographic secret distribution are disclosed. In one embodiment, a method for secure cryptographic secret distribution may include: (1) receiving, at a key relay station, a cryptographic secret from a webserver over a first communication network; (2) storing, by the key relay station, the cryptographic secret; (3) authenticating, by the key relay station, an end user via an end user electronic device; and (4) securely communicating, by the key relay station, the cryptographic secret to the end user electronic device. The end user electronic device is configured to store the cryptographic secret in secure storage on the end user electronic device, to encrypt data with the cryptographic secret, and to communicate the encrypted data to the webserver over a second communication network.

Abstract: A method may include: receiving, by a webserver computer program, shared key material shared with a client application; receiving from a browser, a request for a secure connection; establishing a session with the browser over a first secure connection; establishing a shared secret key with the browser, wherein the browser creates a browser secret key encrypted with the shared secret key, encrypts the browser secret key with the shared secret key, and provides the browser secret key encrypted with the shared secret key and session information the client application over a second secure connection that is protected with the shared key material; decrypting the browser secret key encrypted with the shared secret key using the shared secret key; identifying the session with the browser from the session information; and establishing, end-to-end encryption on top of the second secure connection using the browser secret key or a derivation thereof.

Abstract: Systems and methods for bridging gaps in cryptographic secret distribution using line-of-sight-secured networks are disclosed. In one embodiment, a system may include: a first physical location providing a cryptographic secret; a second physical location comprising a space-based vehicle transceiver that receives the cryptographic secret from the first physical location over a secure communication channel; a space-based vehicle that receives the cryptographic secret from the second physical location over a first line-of-sight communication channel; and a third physical location that receives the cryptographic secret from the space-based vehicle over a second line-of-sight communication channel, encrypts data with the cryptographic secret, and communicates the encrypted data to the first physical location over a communication network; wherein the first physical location receives the encrypted data and decrypts the encrypted data using the cryptographic secret.

Abstract: Systems and methods for secure cryptographic secret distribution are disclosed. In one embodiment, a method for secure cryptographic secret distribution may include: (1) receiving, at a key relay station, a cryptographic secret from a webserver over a first communication network; (2) storing, by the key relay station, the cryptographic secret; (3) authenticating, by the key relay station, an end user via an end user electronic device; and (4) securely communicating, by the key relay station, the cryptographic secret to the end user electronic device. The end user electronic device is configured to store the cryptographic secret in secure storage on the end user electronic device, to encrypt data with the cryptographic secret, and to communicate the encrypted data to the webserver over a second communication network.