Secure Communication

PGP Public Key

Encrypt your message before sending it to seqrets@proton.me

Key Fingerprint

After importing the key, verify the fingerprint matches:

2C4D CD66 1F22 05AC 15C3 AC04 E462 D3A7 3866 C5D9

gpg --import pgp.txt
gpg --fingerprint seqrets@proton.me

Public Key

Download

How to Send an Encrypted Message

Planning an encrypted conversation? Encryption is one-directional. To send us an encrypted message you only need our public key (below). For us to reply encrypted, we need your public key — so you'll want your own PGP key pair. The steps below walk you through generating one and sharing your public key with us. (Only need to send something one-way, with no reply? You can skip the key-generation step.)

Skip all of this if you use Proton Mail: emailing seqrets@proton.me from a Proton account is end-to-end encrypted in both directions automatically, with no keys to manage by either side — see Option 1 below.

Option 1: Proton Mail(easiest — no keys, no tools)

If you use Proton Mail, just email seqrets@proton.me directly. Messages between Proton accounts are end-to-end encrypted in both directions automatically — no public keys to paste, no PGP tool, no copy-and-paste, and replies are encrypted too. This is the simplest option and the one we recommend if you have (or can create) a Proton account.

Option 2: Use aliceandbob.io(no account needed)

Go to aliceandbob.io/online-pgp-tool
Generate your own key pair (for an encrypted reply): on the default "Generate a PGP key pair" screen, enter an email and a passphrase you'll remember, leave the curve as curve25519, and click Generate. Save your private key and passphrase somewhere safe — you'll need them to read our reply. (Skip this step if you don't need an encrypted reply.)
In the left sidebar, click the Encrypt icon (the padlock) to open "Encrypt a message"
Paste our public key (above) into the "Public PGP key of the receiver" field
In "Text to encrypt", write your message — and paste your own public key at the top so we can encrypt our reply to you — then click Encrypt
Copy the encrypted output and email it to seqrets@proton.me

When we reply, open the tool's Decrypt tab and use your private key and passphrase to read it. aliceandbob.io runs entirely in your browser — nothing is sent to any server.

Option 3: GPG Command Line

# Download and import the key
curl -sO https://seqrets.app/pgp.txt
gpg --import pgp.txt

# Encrypt a message
echo "Your secret message" | \
  gpg --encrypt --armor \
  --recipient seqrets@proton.me

# Or encrypt a file
gpg --encrypt --armor \
  --recipient seqrets@proton.me \
  document.pdf

Send the encrypted output (.asc) as an email or attachment to seqrets@proton.me. For an encrypted reply, also send us your own public key — export it with gpg --export --armor you@example.com.

Option 4: Email Clients

Thunderbird

Built-in OpenPGP support. Go to Settings → End-to-End Encryption → OpenPGP Key Manager → Import. Then compose to seqrets@proton.me and click the encrypt button.

Apple Mail

Install GPG Suite, import the key, then compose normally — it auto-encrypts when a recipient key is available.

Outlook (Windows)

Install Gpg4win with Kleopatra, import the key, then use the GpgOL plugin to encrypt from Outlook.

Always verify the key fingerprint above before trusting it. And a reminder: seQRets never needs your seed phrase, private keys, or Qards — never send those to anyone, including us.