PKI / S-MIME SECURITY

Secure every email. Trust every message.

PKI-powered email security that cryptographically authenticates every sender, guarantees message integrity, and ensures only the intended recipient can read what you send — automatically.

SIYA, the XgenPlus assistant
256-bitAES encryption
X.509Certificate standard
S/MIMEProtocol standard
0-trustAttack surface
The trust chain

From Certificate Authority to verified inbox

Four interlocking layers create an unbroken chain of cryptographic trust for every email you send.

Certificate Authority

A dedicated CA for your domain — the trusted anchor that issues and manages all user certificates.

User certificate issued

Each user gets a unique X.509 certificate binding their address to a private key only they hold.

Sign & encrypt

Outgoing mail is automatically signed with the sender's key and optionally encrypted with the recipient's — transparently.

Verify & decrypt

The recipient's client validates the chain, confirms identity, verifies integrity and decrypts instantly.

Core capabilities

Two pillars of email security

Signing proves who sent a message and that it wasn't altered. Encryption keeps its contents private. Together they secure every email end to end.

Digital signing

Prove every message is genuinely yours.

  • Sender authentication — impossible to spoof
  • Message integrity — tampering is detected
  • Non-repudiation — authorship can't be denied
  • Visible trust badge in compatible clients
  • Works even with unencrypted recipients

Email encryption

Only the intended recipient can read it.

  • End-to-end confidentiality in transit and at rest
  • Protects against server-side interception
  • Sender keeps a readable copy
  • Inline images and attachments encrypted too
  • Based on the open S/MIME standard
Why it matters

Control, compliance, trust

Cryptographic email security is more than a feature — it protects your organization, your customers and your reputation.

Regulatory compliance ready

Satisfy encryption mandates across GDPR, HIPAA, ISO 27001 and financial regulations.

Eliminate business email compromise

Spoofed messages visibly lack a valid signature, so BEC attacks fail.

Own your infrastructure

Your CA is fully under your control — govern issuance and revoke instantly.

Scales across the org

Certificate provisioning integrates with user lifecycle — new staff get certs automatically.

Forensic-grade audit trail

Every signed email is a tamper-evident record you can prove in disputes.

Open standards

Built on open industry standards

No proprietary lock-in — XgenPlus PKI is built entirely on the standards trusted across governments and enterprises worldwide.

S/MIME

RFC 8551.

X.509

ITU digital certificate standard.

RSA

2048 / 4096-bit keys.

AES

256-bit symmetric encryption.

CRL

Instant certificate revocation.

Empower your email with XgenPlus PKI

PKI-grade signing and encryption for organizations that can't afford to get email wrong.

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