Editing Blind Delegation of Quantum Digital Signature (section)

====Message Blinding====
The owner of the message now converts the message into matrix format.
Then (s)he blinds the message matrix using the key shared with the verifier by multiplying the matrices.
Now, (s)he encrypts the blind message with the key shared with the signer by multiplying the matrices.
Finally, (s)he sends the encrypted matrix and the determinant of the blinded matrix to the signer and only the determinant of the message matrix to the verifier.