Identity confirmation using private keys

A system comprising:

• one or more processors;
• and
• a non-transitory computer readable medium storing a plurality of instructions, which when executed, cause the one or more processors to:
• generate a challenge;
• transmit an encrypted challenge generated using the challenge and a public key of an asymmetric key pair to a client computing system;
• fragment a private key of the asymmetric key pair into a first, second and third private key fragments;
• generate a first partially decrypted challenge using the first private key fragment and the encrypted challenge;
• receive a second and a third partially decrypted challenges from the client computing system;
• generate a decrypted challenge using the first, second and third partially decrypted challenges;
• and
• compare the decrypted challenge and the challenge for identity verification.

A computer program product comprising a non-transitory computer-readable medium having computer-readable program code embodied therein to be executed by one or more processors the program code including instructions to:

• generate a challenge;
• transmit an encrypted challenge generated using the challenge and a public key of an asymmetric key pair to a client computing system;
• fragment a private key of the asymmetric key pair into a first, second and third private key fragments;
• generate a first partially decrypted challenge using the first private key fragment and the encrypted challenge;
• receive a second and a third partially decrypted challenges from the client computing system;
• generate a decrypted challenge using the first, second and third partially decrypted challenges;
• and
• compare the decrypted challenge and the challenge for identity verification.