A streaming one time Pad cipher using a One Time Pad (OTP) provides secure data storage and retrieval. The data that is encrypted using the one time pad is stored in a repository that is separate from the generation and/or storage for the one time pad.

An encryption circuit includes a fundamental vector generation circuit configured to generate a random number sequence for serving as a fundamental vector based on an initial vector, an image mask generation circuit configured to generate an image mask with a mask value set for each pixel in a region to be encrypted smaller than a frame size of the image, based on the fundamental vector and coordinate information for specifying the region to be encrypted, and an XOR operation circuit configured to compute an exclusive OR between each mask value of the image mask and each pixel value of the image data to generate encrypted image data.

A system for creating protected functional descriptions of integrated circuits provides encrypted gate delay information preventing deduction of gate function from gate delay but allowing simulation of the integrated circuit with accurate propagation delay calculation. Individual gate delay values may be modified so that they obscure actual gate delays but total along a data propagation path to equal the actual cumulative gate delay along that data propagation path.

This invention establishes means and protocols to secure data, using large undisclosed amounts of randomness, replacing the algorithmic complexity paradigm. Its security is credibly appraised through combinatorics calculus, and it transfers the security responsibility to the user who determines how much randomness to use. This Trans-Vernam cryptography is designed to intercept the Internet of Things where the ‘things’ operate on limited computing capacity and are fueled by fast draining batteries. Randomness in large amounts may be quickly and conveniently stored in the most basic IOT devices, keeping the network safe.

Methods for a server include defining a starting element and an element step size. A pad mapping is applied to a data Random Cipher Pad (RCP) to obtain a Key RCP using each element of the data RCP once in a predetermined non-sequential order. The starting element and the element step size are combined with the data RCP. The data RCP is encrypted using the Key RCP to produce a subsequent data RCP. The subsequent data RCP is transmitted to another computer. Methods for clients include applying a pad mapping to a data RCP to obtain a Key RCP using each element of the data RCP once in a predetermined non-sequential order to develop the Key RCP. The Key RCP is encrypted using the data RCP to produce a subsequent Key RCP. A data structure is encrypted using the data RCP to produce an encrypted data structure.

Provided is a method for masking a sensitive signal by injecting noise into planes of a printed circuit board (PCB). The method comprises detecting, by a secondary integrated circuit (IC), a noise signal on a shared plane of a PCB that includes the secondary IC. The noise signal may be analyzed to determine the characteristics of the noise signal. A masking signal may be generated based on the characteristics. The masking signal may then be injected onto the shared plane.

Systems, apparatuses, methods, and computer program products are disclosed for quantum entanglement random number generation (QERNG). An example method for QERNG includes, among other operations, generating a quantum entanglement random number based on a subset of a first set of entangled quantum particles associated with a first computing device. Each entangled quantum particle in the first set of entangled quantum particles may be entangled with a respective entangled quantum particle in a second set of entangled quantum particles associated with a second computing device. In some instances, the example method may further include generating a cryptographic key based on the quantum entanglement random number, encrypting an electronic communication based on the cryptographic key, and transmitting the encrypted electronic communication to the second computing device.

An embodiment of an automatic key delivery system is described, An automatic key delivery system comprises the following operations. Herein, a first token is generated and provided to a first network device. Thereafter, a first key value pair, including the first token and a first key segment of a cryptographic key, is received by a first relay server and a second key value pair, including the first token and a second key segment of the cryptographic key, is received from a second relay server. In response, a second token to be provided to the first relay server and the second relay server. Thereafter, the first and second key segment are returned from the first and second relay servers based on usage of the second token as a lookup in order to recover the cryptographic key for decryption of an encrypted content from the first network device.

A computer-implemented security method is provided. The method may be implemented on one or more blockchains, such as the Bitcoin Cash blockchain. The method comprises the steps of: converting a first secret value (S2) accessible to a first user into a first derived public key (P2), and transmitting the first derived public key to the second user; converting a second secret value (S1) accessible to a second user into a second derived public key (P1), and transmitting the second derived public key to the first user; calculating a third derived public key (P_AE) based at least in part on the first derived public key; calculating a fourth derived public key (P_BE) based at least in part on the second derived public key; applying a one-way function to each of the first secret value and the second secret value to create respective first and second veiled secret values (H(S2), H(S1)); communicating the first veiled secret value from a first user to a second user and the second veiled secret value from the second user to the first user; and constructing first and second blockchain transactions (tx1, tx2) each comprising the first veiled secret value and the second veiled secret value, the transactions arranged to be unlockable to transfer control of a respective first or second resource upon provision of both the first secret value and the second secret value to the respective transaction, wherein unlocking of the first blockchain transaction causes the first secret value to be revealed to the second user, and unlocking of the second blockchain transaction causes the second secret value to be revealed to the first user, and wherein revelation of the first secret value to the second user enables the second user to calculate a second private key (S2) corresponding to the third derived public key, and revelation of the second secret value to the first user enables the first user to calculate a first private key (S1) corresponding to the fourth derived public key.

An encryption and decryption system includes a first electronic device and a second electronic device. The first electronic device includes a memory device and an encryption device. The memory device can store plaintext data. The encryption device can generate first pseudo data and first pseudo key. The encryption device encrypts first pseudo data by the first pseudo key and encrypt the plaintext data by a key, and outputs the ciphertext data generated by encrypting plaintext data by the key. The second electronic device includes a decryption device for generating second pseudo data and the second pseudo key. The decryption device decrypts the second pseudo data by the second pseudo key, and decrypts the ciphertext data by the key, and outputs the plaintext data, which is generated by decrypting the ciphertext data by the key.