Certificated quantum cryptography system and method

A certificated quantum cryptography method which is performed by a quantum cryptography server connected to a first communication device and a second communication device which perform quantum key distribution, the certificated quantum cryptograph method comprising operations of:

• (a) receiving a first quantum public key generated by the first communication device and a second quantum public key generated by the second communication device and registering measurement outcomes of the first and second quantum public keys;
• (b) when first basis information and second basis information acquired by performing quantum key distribution between the first and second communication devices are signed and exchanged, receiving a third quantum public key generated by the second communication device on the basis of the first basis information and a fourth quantum public key generated by the first communication device on the basis of the second basis information and registering measurement outcomes of the third and fourth quantum public keys;
• and
• (c) verifying whether the first quantum public key matches the third quantum public key and whether the second quantum public key matches the fourth quantum public key.