Certain embodiments provide means for managing automated access to computers, e.g., using SSH user keys and other kinds of trust relationships. Certain embodiments also provide for managing certificates, Kerberos credentials, and cryptographic keys. Certain embodiments provide for remediating legacy SSH key problems and for automating configuration of SSH keys, as well as for continuous monitoring.

Automated access, key, certificate, and credential management

A distributed key encryption system and method is provided in which a key storage server provides a session key to the source and destination computers by encrypting the session key with unique distributed private keys that are associated with the respective source and destination computers by unique private key identifiers The destination computer then decrypts the encrypted session key using it's distributed private key and then decrypts the communication using the decrypted session key.

Dynamic distributed key system and method for identity management, authentication servers, data security and preventing man-in-the-middle attacks

Generalized Entity Network Translation provides new state of the art methodology for extending RKI techniques into a truly generalized framework capable of operating at exceptional levels of authenticity without the need for roots, certificate authorities, or other static points in an infrastructure. More astounding is its ability to create trusted authentic entity relationships that require no externally stored state outside of the shared context between discrete peers. The present invention provides, among other things, novel improvements to blockchain-derived systems and provides strong proof of ownership, renewal, roll-backs, and localized state and many blockchain systems more palatable choices for system integration.

Generalized entity network translation (gent)

Methods and apparatus for quantum key distribution are described, in particular including methods and networks 300 arranged to improve and/or ensure the security of data transmitted thereby by (i) ensuring a certain level of loss within at least part of the network, (ii) placing a penultimate and an endpoint nodes in situated in a secure second enclave, (iii) analysing a transmitted bit stream to ensure that it does not provide an unacceptable amount of information about the key that may be generated therefrom, and/or (iv) varying the order in which bits are used to generate a key.

Quantum key distribution

A semiconductor memory device comprises memory cells, a bitline connected to the memory cells, a read circuit including a precharge circuit, and a first transistor connected between the bitline and the read circuit, wherein a first voltage is applied to a gate of the first transistor when the precharge circuit precharges the bitline, and a second voltage which is different from the first voltage is applied to the gate of the first transistor when the read circuit senses a change in a voltage of the bitline.

Semiconductor memory device.

In symmetric methods of encryption the stream cipher should be as long as the plaintext message. Such a cipher is difficult to generate if the plaintext data to be encrypted is enormous. The present invention provides a method of generating a stream cipher of variable length which may be extremely long. It is generated by creating a number of random sub-keys having non-repeating lengths and combining such sub-keys in a random way.

Method of generating a stream cipher using multiple keys

A method of using a single, one-time pre-distributed and pre-authenticated symmetric Whitenoise key structure or other exponential key or deterministic random number generator to establish secure key-based communications between a first source computer and a second destination computer (endpoint, sensor or smart component) to provide continuous, dynamic, one-time-pad authentication throughout a session (not just at sign-in or login). By polling ahead in an exponential key stream with specific indexes, pointers or dynamic offsets the method creates an infinite number of identifiable one-time-pad tokens that have never been created or used before and deterministic, random key streams of functionally limitless length that will easily outlive the life of the person or device deploying it. The source and destination computers each with an identical copy of a unique pre-distributed symmetric stream cipher key and a first valid offset. The offset is a pointer or index into the unique key stream to an unused and never created portion of key stream for dynamic-one-time-pad authentication or to a specific static portion of key stream as a constant identifier like the portion of the key stream to encrypt or decrypt a specific file or the secure session. The distributed key structure is a unique, deterministic random number generator that creates exponentially long, deterministic, random key streams that can have an unlimited number of offsets into the same key stream to provide any key-based network security control. The provision of this key is a one-time, non-pki key distribution generally using Identity Proofing 3 or 4 levels for pre-provisioning and pre-authentication purposes. There is never key (complete key or key structure) distribution again. The destination computer sends the source computer a random, previously unused token of variable length from the pre-distributed key beginning at the destination computer's last valid current offset. The source computer generates the corresponding token from the last valid offset for the corresponding key in respect of the destination computer. It compares the tokens bit by bit and if they are identical the source computer authenticates the destination computer. After each authentication call that is successful, the source and destination computers update there current dynamic offsets independently without any key or offset transfer by the length of the token plus 1 or some arithmetic function that moves the offset forward to an unused portion of the key stream. Communications can be sent encrypted using the same distributed key and using a similar technique to the primary authentication function.

Dynamic identity verification and authentication continuous, dynamic one-time-pad/one-time passwords and dynamic distributed key infrastructure for secure communications with a single key for any key-based network security controls

In symmetric methods of encryption the key should be as long as the plaintext message. Such a key is difficult to generate if the plaintext data to be encrypted is enormous. The present invention provides a method of creating a random key of variable length which may be extremely long. It is generated by consecutively applying sub-keys having shorter non-repeating random lengths.

Method of encryption using multi-key process to create a variable-length key

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Dynamic distributed key system and method for identity management, authentication servers, data security and preventing man-in-the-middle attacks

Method of generating a stream cipher using multiple keys

Dynamic identity verification and authentication continuous, dynamic one-time-pad/one-time passwords and dynamic distributed key infrastructure for secure communications with a single key for any key-based network security controls

Method of encryption using multi-key process to create a variable-length key