You're asking:
"How do I control who connects?"

The answer is TLS done right — and mTLS when you need access control. Here's what that means and why it matters.

Problem 1

"Can I trust the server?"

"I have HTTPS" isn't enough

Most developers think: "I have HTTPS, so I'm secure." But not all TLS is created equal. The configuration matters.

Configuration What It Means Risk
TLS 1.0/1.1 Protocols from 1999/2006 Vulnerable to BEAST, POODLE
TLS 1.2 with CBC Block cipher with padding Padding oracle attacks
Weak ciphers RC4, 3DES, export ciphers Breakable with modern hardware
TLS 1.3 + Authenticated Encryption with Associated Data (AEAD) Modern protocol, authenticated encryption With [ Cyphers ]
78%

of TLS configurations accept weak cipher suites

45%

still support TLS 1.0/1.1 from 1999

67%

vulnerable to at least one documented attack

The Solution: Server Authenticated TLS (HTTPS)

We refuse weak configurations:

Protocol: TLS 1.3 only
Ciphers: Authenticated Encryption with Associated Data (AEAD) only (AES-GCM, ChaCha20)
Key Exchange: ECDHE only (forward secrecy)
Validation: Strict certificate checking

No configuration = No misconfiguration.

Problem 2

"Can I control who connects to my server?"

What you've tried (and why it's not enough)

API Keys

Can be stolen from logs, environment variables, or intercepted in transit.

OAuth Tokens

Passing tokens through AI prompts feels wrong — because it is. Still interceptable.

"Just HTTPS"

Server proves identity to you. But you don't prove identity to the server.

Standard HTTPS

Client → Server
Client: "Trust me"
Server: "I am server" (certificate)
Server proves identity
Client proves identity

Mutual TLS (mTLS)

Client ↔ Server
Client: "I am client" (certificate)
Server: "I am server" (certificate)
Server proves identity
Client proves identity

The Killer Feature of mTLS

With mTLS, an attacker can't even complete a TCP handshake without a valid certificate.

Without mTLS:

Attacker can: probe endpoints, send requests, brute force, exploit vulnerabilities

With mTLS:

No Cert = No Connection. Attack surface: zero.

Why haven't you done this already?

Complexity

"Setting up a CA is a whole project. Then I need to issue certs, manage rotation, handle revocation..."

Cyphers Hub does this for you. One click to issue, automatic rotation.

Cost

"Commercial client certificates cost $30-75 per year. EACH. For 500 users, that's $15,000-37,500/year."

With Pro, Unlimited Client Certificates for Free.

Expertise

"I'd need to understand PKI, certificate chains, trust stores, OCSP, CRLs..."

Drop-in products. No PKI knowledge required. We handle it.

Get started in 5 minutes

Three products for three platforms. Same Server Authenticated TLS (HTTPS). Same free tier.

Free tier includes: Server Authenticated TLS (HTTPS) + 5 client certificates + 2 endpoints.
Same security as Pro. Limits are on scale, not quality.