Generate the one-message pad

Create a SEND pad using the Windows cryptographic random-number generator. The application produces a separate RECEIVE counterpart with the same public pad ID.

Provision the receiver

Move the RECEIVE .nspd package to its intended endpoint through a confidential, authenticated channel. Use encrypted removable media and verify the complete displayed pad ID with the recipient.

Encode and authenticate

Enter the message and load the SEND package. Communicatio Secreta encrypts the encoded text with decimal OTP arithmetic, binds direction and sequence, and adds a one-use authentication tag.

Read or transmit the groups

Use the exact digit groups directly, render them as clear speech, or save the transcript and audio inside a passphrase-protected .nspt file.

Verify and recover

The recipient loads the matching RECEIVE package. The application checks the entire envelope before consuming the pad and displaying the recovered text.