Method of Social Key Recovery and Related Device

A method of social key recovery for a second communication device supporting blockchain technology with asymmetric cryptographic algorithm, the method comprising:

• receiving a device identity of a first communication device, from the first communication device on the blockchain;
• requesting the first communication device of a verification code;
• receiving the verification code from the first communication device;
• in response to the receiving of the verification code of the first communication device, generating a pair of a public key and a private key of the second communication device;
• utilizing the device identity to request a key server on the blockchain to encrypt the received verification code and the public key of the second communication device in a message with a public key of the first communication device, wherein the public key is pre-stored in the key server based on the device identity;
• receiving the encrypted message from the key server;
• transmitting the encrypted message including the verification code of the first communication device and the public key of the second communication device, to the first communication device;
• and
• receiving seed phrases encrypted with the public key of the second communication device, from a first communication device.

A first communication device for social key recovery, the first communication device supporting blockchain technology with asymmetric cryptographic algorithm and comprising:

• a processing circuit, for executing a program code;
• and
• a storage device, coupled to the processing circuit, for storing the program code, wherein the program code instructs the processing circuit to perform the following steps:
• transmitting a device identity of the first communication to a second communication on the blockchain;
• receiving a request for a verification code of the first communication device, from the second communication device;
• in response to the request, transmitting the verification code of the first communication device, to the second communication device;
• receiving a first message including the verification code and a public key of the second communication device, from the second communication device, wherein the first message is encrypted with a public key of the first communication device;
• decrypting the first message with a private key of the first communication device, to obtain the public key of the second communication device;
• and
• transmitting seed phrases encrypted with the public key of the second communication device for restoring a crypto wallet on the blockchain, to the second communication device.

A second communication device for social key recovery, the second communication device supporting blockchain technology with asymmetric cryptographic algorithm and comprising:

• a processing circuit, for executing a program code;
• and
• a storage device, coupled to the processing circuit, for storing the program code, wherein the program code instructs the processing circuit to perform the following steps:
• receiving a device identity of a first communication device, from the first communication device on the blockchain;
• requesting the first communication device of a verification code;
• receiving the verification code from the first communication device;
• in response to the receiving of the verification code of the first communication device, generating a pair of a public key and a private key of the second communication device;
• utilizing the device identity to request a key server on the blockchain to encrypt the received verification code and the public key of the second communication device in a message with a public key of the first communication device, wherein the public key is pre-stored in the key server based on the device identity;
• receiving the encrypted message from the key server;
• transmitting the encrypted message including the verification code of the first communication device and the public key of the second communication device, to the first communication device;
• and
• receiving seed phrases encrypted with the public key of the second communication device, from a first communication device.