Secure file transfer

A system, comprising:

• a processor configured to:
• obtain a first file to transmit to one or more second devices;
• generate a first encryption key,
• encrypt the first file using the first encryption key;
• transmit the encrypted first file to a first server;
• receive a location of the encrypted first file from the first server;
• generate a first ephemeral asymmetric key pair, wherein the first ephemeral asymmetric key pair includes a first ephemeral public key and a first ephemeral private key;
• encrypt a plurality of information associated with the first file using a second encryption key, wherein the plurality of information includes the first encryption key and the location of the first encrypted file;
• and
• transmit a first communication that includes the plurality of encrypted information to one or more second devices, wherein a header of the first communication includes the first ephemeral public key;
• and
• a memory coupled to the processor and configured to provide the processor with instructions.

A non-transitory computer-readable medium comprising instructions that when, executed by at least one processor, perform the steps of:

• obtaining a first file to transmit to one or more second devices;
• generating a first encryption key,
• encrypting the first file using the first encryption key;
• transmitting the encrypted first file to a first server;
• receiving a location of the encrypted first file from the first server;
• generating a first ephemeral asymmetric key pair, wherein the first ephemeral asymmetric key pair includes a first ephemeral public key and a first ephemeral private key;
• encrypting a plurality of information associated with the first file using a second encryption key, wherein the plurality of information includes the first encryption key and the location of the first encrypted file;
• and
• transmitting a first communication that includes the plurality of encrypted information to one or more second devices, wherein a header of the first communication includes the first ephemeral public key.