Systems, apparatuses, methods, and computer program products are disclosed for session authentication using quantum line switching. An example system includes encoding circuitry configured to generate, based on a first set of quantum bases, a set of qbits, and transmit the first subset of qbits over a first quantum line. The encoding circuitry is configured not to transmit the first set of quantum bases. The system further includes switching circuitry configured to receive the first subset of qbits over the first quantum line, and transmit it over a second quantum line. The system further includes first decoding circuitry configured to receive the first subset of qbits, and decode, based on a second set of quantum bases, the first subset of qbits to generate a first decoded set of bits. The system further includes first session authentication circuitry configured to generate a session key based on the first decoded set of bits.