Abstract: Systems and methods to produce shared secret data are generally described. In some examples, a first device may receive a first public key from a second device. The first device may produce a first public key based on the first public key of the second device. The respective private keys of each device may be associated with the first public keys of each device. Each device may produce a second public key based of respective private keys and the other devices first public key. Each device may transmit a second public key to the other device. The first device may produce the shared secret data based on its private key and the second public key of the second device. The second device may produce the shared secret data based on its private key and the second public key of the first device.

Abstract: Systems and methods to produce shared secret data are generally described. In some examples, a first device may receive a first public key from a second device. The first device may produce a first public key based on the first public key of the second device. The respective private keys of each device may be associated with the first public keys of each device. Each device may produce a second public key based of respective private keys and the other devices first public key. Each device may transmit a second public key to the other device. The first device may produce the shared secret data based on its private key and the second public key of the second device. The second device may produce the shared secret data based on its private key and the second public key of the first device.

Abstract: A processor of a device may provision a component of the device with a digital signature algorithm and an authentication key algorithm and/or server-provisioned private and/or public keys. The processor may generate one or more private keys and public keys and/or store them in a secure memory of the device. The processor may transmit the generated public keys to an owner server and receive a pedigree document in response, which may be signed with the private key. The owner server may determine a change in an ownership of the device and append the pedigree document in an immutable fashion in response to the determining to reflect the change in the ownership and/or sign the appended pedigree document with a private key. A chain of ownership of the device is verifiable using only information contained within the appended pedigree document and rooted in the processor itself.

Abstract: Technologies are generally described for methods and devices for generating a final signature. The methods may comprise receiving a message by a processor. The methods may comprise generating a random number by a random number generator. The methods may comprise forwarding, by the processor, the random number to a cloaking element generator. The methods may comprise forwarding, by the processor, a private key to the cloaking element generator. The methods may comprise forwarding, by the processor, a group to the cloaking element generator. The methods may comprise forwarding, by the processor, a homomorphism to the cloaking element generator. The methods may comprise processing, by the cloaking element generator, the random number, the group, the private key, and the homomorphism to produce a cloaking element. The methods may comprise applying the cloaking element to transform the message into the final signature.

Abstract: Systems and methods to produce shared secret data are generally described. In some examples, a first device may receive a first public key from a second device. The first device may produce a first public key based on the first public key of the second device. The respective private keys of each device may be associated with the first public keys of each device. Each device may produce a second public key based of respective private keys and the other devices first public key. Each device may transmit a second public key to the other device. The first device may produce the shared secret data based on its private key and the second public key of the second device. The second device may produce the shared secret data based on its private key and the second public key of the first device.

Abstract: A processor of a device may provision a component of the device with a digital signature algorithm and an authentication key algorithm and/or server-provisioned private and/or public keys. The processor may generate one or more private keys and public keys and/or store them in a secure memory of the device. The processor may transmit the generated public keys to an owner server and receive a pedigree document in response, which may be signed with the private key. The owner server may determine a change in an ownership of the device and append the pedigree document in an immutable fashion in response to the determining to reflect the change in the ownership and/or sign the appended pedigree document with a private key. A chain of ownership of the device is verifiable using only information contained within the appended pedigree document and rooted in the processor itself.

Abstract: Systems and methods to produce shared secret data are generally described. In some examples, a first device may receive a first public key from a second device. The first device may produce a first public key based on the first public key of the second device. The respective private keys of each device may be associated with the first public keys of each device. Each device may produce a second public key based of respective private keys and the other devices first public key. Each device may transmit a second public key to the other device. The first device may produce the shared secret data based on its private key and the second public key of the second device. The second device may produce the shared secret data based on its private key and the second public key of the first device.

Abstract: Technologies are generally described for methods and devices for generating a final signature. The methods may comprise receiving a message by a processor. The methods may comprise generating a random number by a random number generator. The methods may comprise forwarding, by the processor, the random number to a cloaking element generator. The methods may comprise forwarding, by the processor, a private key to the cloaking element generator. The methods may comprise forwarding, by the processor, a group to the cloaking element generator. The methods may comprise forwarding, by the processor, a homomorphism to the cloaking element generator. The methods may comprise processing, by the cloaking element generator, the random number, the group, the private key, and the homomorphism to produce a cloaking element. The methods may comprise applying the cloaking element to transform the message into the final signature.