§ 14 — Visa support letter Schengen invitation · personalised · free · ≤ 72 hours

Crossing the border
shouldn't be the part that stops you.

For attendees who need a Schengen visa.
We issue an invitation letter — personalised, on official letterhead, signed by the conference chair — for any registered, paid attendee. Free of charge. In your hands inside 72 hours.

§ 14.a — The letter

A letter your embassy
will accept, issued by the OpenSSL Corporation.

Personalised. On letterhead. Ink-signed by the conference chair.
Free of charge to any registered, paid attendee.

№ 03 · Visa support · invitation letter Per attendee · personalised

"To whom it may concern"
— a letter your embassy will accept.

Issued by
OpenSSL Foundation, conference organising committee
Signed by
The conference chair · ink signature, embossed seal
Format
PDF · A4 · official letterhead · scanned original on request
Includes
Your full name as in passport, passport number, employer, dates of attendance, hotel reservation reference
Languages
English. Czech translation on request.
Eligibility
Any registered, paid attendee. Speakers issued automatically on acceptance.
Turnaround
Under 72 hours · 5 working days for Czech-translated copies
Cost
Free of charge.
— Signed in person by the conference chair, on every letter.
Fill the request form ↓
Annex · what to bring
For your appointment.
  • Your passport (six months' validity past 18 Oct 2026).
  • Our invitation letter, printed.
  • Your conference registration confirmation (PDF).
  • Hotel reservation — Diplomat or your booking — printed.
  • Return flight itinerary.
  • Travel medical insurance, €30,000+ Schengen coverage.
  • Recent bank statements or employer letter.

The letter is supporting documentation — it does not guarantee the visa. The decision rests with your consulate. We have a 96% acceptance rate among invited speakers since 2014.

§ 14.preview — The letter itself

This is what your embassy will receive,
on letterhead, ink-signed.

A faithful preview of the standard wording. Your name, passport, employer, hotel, and dates are inserted in the highlighted lines below.

OpenSSL Corporation
OpenSSL Software Services Czech, s. r. o. · Prague, Czech Republic
www.openssl-corporation.org · anton@openssl.org
Ref.
OSSL-VL-2026/[####]
Date
Prague, [date of issue]

To Whom It May Concern,

Subject: Visa Support Letter for the OpenSSL Conference 2026

This letter confirms that [Full name as in passport], holder of passport number [passport № ], has been invited to attend the OpenSSL Conference 2026, which will take place from 13 to 15 October 2026 in Prague, Czech Republic.

The OpenSSL Conference 2026 is a premier event that brings together industry leaders, security experts, and researchers to discuss and collaborate on advancements in secure communications and cryptographic technologies. Participation in this conference will contribute to the global exchange of knowledge in cybersecurity.

Please note that this letter is intended solely to assist in the visa application process to enter the Czech Republic and does not imply any financial support or responsibility for travel, accommodation, or other expenses borne by the attendee.

For visa requirements and application procedures, please contact the Czech Embassy or Consulate in your country. Should you need further documentation or assistance, please reach out to us at the contact details provided below.

We look forward to welcoming you to Prague.

Sincerely,

Anton Arapov
Director, OpenSSL Corporation
📧 anton@openssl.org
OpenSSL Software Services Czech, s. r. o. · www.openssl-corporation.org · Page 1 of 1

The wording above is the standard text. The fields in brackets are filled per attendee from the form below.

§ 14.b — Request the letter

Fill once. Print, e-mail, or save
— whichever your embassy needs.

Everything stays on this page until you choose to send it.
Nothing is uploaded; nothing is logged.

A About you — as printed in your passport
B Your employer — for the letter and the consulate
C Travel & consulate
Everything you've typed lives only on this page.
Print to give to the embassy directly, or e-mail it to visa@openssl-conference.org for the official letter.
§ 14 — Visa support · invitation letter · ≤ 72 hours · free of charge