Enhanced communication security

1. A system comprising:

a communication device configured to communicate over a network;

one or more processors; and

one or more non-transitory computer-readable media containing instructions that, when executed by the one or more processors, cause the system to perform one or more operations, the operations comprising:

performing a cryptographic operation on one or more packets to facilitate secure communication between the system and a computing device over the network, the cryptographic operation including probabilistic rounding, the probabilistic rounding including fake rounding with probabilistic boundary elimination; and

transmitting, via the communication device, to the computing device over the network, the one or more packets.

2. The system of claim 1 , wherein the cryptographic operation includes:

generating a first public key component to transmit to the computing device, at least one input to the first public key component probabilistically rounded and based on first secret information;

transmitting the first public key component from the system to the computing device;

receiving a second public key component at the system from the computing device, at least one input to the second public key component probabilistically rounded; and

deriving a shared key based on the second public key component and the first secret information.

3. The system of claim 1 , wherein the cryptographic operation includes:

receiving a public key from the computing device;

encrypting the one or more packets using the public key by probabilistically rounding one or more inputs to the encrypted one or more packets of data; and

transmitting the one or more encrypted packets to the computing device.

4. The system of claim 1 , wherein the probabilistic rounding includes rounding with probabilistic boundary elimination.

5. The system of claim 1 , wherein the fake rounding with probabilistic boundary elimination includes:

determining whether an entry associated with the cryptographic operation is within a threshold amount of a rounding boundary; and

in response to the entry being within the threshold amount of the rounding boundary introducing additional variability to the entry.

6. A method comprising:

performing a cryptographic operation on one or more data packets to facilitate secure communication between a first computing device and a second computing device over a network, the cryptographic operation including probabilistic rounding, the probabilistic rounding including fake rounding with probabilistic boundary elimination; and

transmitting, via a communication device of the first computing device, to the second computing device over the network, the one or more data packets.

7. The method of claim 6 , wherein the cryptographic operation includes:

generating a first public key component to transmit to the second computing device, at least one input to the first public key component probabilistically rounded and based on first secret information;

transmitting the first public key component from the first computing device to the second computing device;

receiving a second public key component at the first computing device from the second computing device, at least one input to the second public key component probabilistically rounded; and

deriving a shared key based on the second public key component and the first secret information.

8. The method of claim 7 , further comprising:

receiving, by the first computing device, a request for the second computing device to access restricted content, the request including the shared key; and

granting the second computing device access to the restricted content based on the request.

9. The method of claim 7 , further comprising lifting at least one rounded element of the second public key component.

10. The method of claim 7 , further comprising receiving at least one cross-rounding bit from the second computing device, wherein deriving the shared key is further based on the at least one cross-rounding bit.

11. The method of claim 6 , wherein the cryptographic operation includes:

receiving a public key from the second computing device;

encrypting the one or more data packets using the public key by probabilistically rounding one or more inputs to the encrypted one or more data packets; and

transmitting the one or more encrypted data packets to the second computing device.

12. The method of claim 11 , wherein encrypting the one or more data packets comprises:

performing a probabilistic rounding on each element of a first matrix associated with the public key to generate first data;

performing the probabilistic rounding on each element of a second matrix associated with the public key;

adding a message of the packet to the probabilistically rounded second matrix to generate second data; and

outputting a combination of the first data and the second data as the encrypted packet.

13. The method of claim 6 , wherein the probabilistic rounding includes rounding with probabilistic boundary elimination.

14. The method of claim 6 , wherein the fake rounding with probabilistic boundary elimination includes:

determining whether an entry associated with the cryptographic operation is within a threshold amount of a rounding boundary; and

in response to the entry being within the threshold amount of the rounding boundary, introducing additional variability to the entry.

15. The method of claim 14 , wherein the fake rounding with probabilistic boundary elimination further includes, in response to the entry being outside of the threshold amount of the rounding boundary, rounding the entry.

16. A non-transitory computer-readable media including instructions that, in response to being executed by one or more processors, perform operations, the operations comprising:

performing a cryptographic operation on one or more data packets to facilitate secure communication between a first computing device and a second computing device over a network, the cryptographic operation including probabilistic rounding, the probabilistic rounding including fake rounding with probabilistic boundary elimination; and

transmitting, via a communication device of the first computing device, to the second computing device over the network, the one or more data packets.

17. The computer-readable media of claim 16 , wherein the cryptographic operation includes:

generating a first public key component to transmit to the second computing device, at least one input to the first public key component probabilistically rounded and based on first secret information;

transmitting the first public key component from the first computing device to the second computing device;

receiving a second public key component at the first computing device from the second computing device, at least one input to the second public key component probabilistically rounded; and

deriving a shared key based on the second public key component and the first secret information.

18. The computer-readable media of claim 16 , wherein the cryptographic operation includes:

receiving a public key from the second computing device;

encrypting the one or more data packets using the public key by probabilistically rounding one or more inputs to the encrypted one or more data packets; and

transmitting the one or more encrypted data packets to the second computing device.