Implement File Upload and Encryption Interface

[CraigOpie]

As a developer, I want to develop a file upload and encryption page, So that authenticated users can securely encrypt files using their public key and store them on IPFS.

Acceptance Criteria:

• [x] Users can access a file upload interface after successfully logging in.
• [x] The interface allows users to select and upload files they wish to encrypt.
• [ ] The system encrypts the uploaded files using the user's public key.
• [ ] Encrypted files are stored on IPFS, and the corresponding IPFS hash is displayed to the user.
• [ ] The interface confirms the successful encryption and storage of files and allows users to download the encrypted file if desired.

[CraigOpie]

There seems to be an issue with using the public signature to encrypt files. The crypto library and openssl says that the operation is not supported for this key type. However, openssl verifies that it is a proper key:

$ openssl pkey -in pubkey.pem -pubin -text -noout
Public-Key: (256 bit)
pub:
    04:8a:19:a0:e3:40:0a:a5:1e:7f:24:08:a2:94:8e:
    d0:8f:9f:58:4f:ec:c3:5a:44:e5:cf:a0:2e:11:58:
    bc:c4:8c:bc:12:f7:7e:06:a2:b0:d0:ec:09:89:1f:
    c3:92:36:13:0d:8e:44:5b:f6:ce:44:c6:a6:10:f0:
    73:fc:ea:61:ea
ASN1 OID: prime256v1
NIST CURVE: P-256

I'm looking into alternative ways to accomplish the encryption. Most likely, I will be using a new set of asymmetric keys, then publishing the public key to the blockchain and signing with the users public signature to verify authenticity. Then query for the public key and encrypt the data to publish to the IPFS.

This issue is currently blocked.