Alexander Dippel

Product Security Architect in MedTech - Passionate about PKI, Applied Cryptography, Device/Cloud Security, and Building with Go.

I enjoy digging into ideas, concepts, and technologies to understand them at a deep level. Sharing what I learn through my blog not only helps me think clearly but may also give you insights you can use.

I’d love to hear from you! If you’d like to know more about me or want to get in touch, please see about me or drop me an email right away.

Recent

Security Review of IEEE 11073 SDC Medical Device Standards

6 April 2026·5060 words

IEEE 11073 SDC establishes a solid security baseline for medical device communication. Two standardization gaps stand in the way of cross-vendor interoperability.

CMS Encryption in Go: Secure Data with OpenSSL and CGO

7 July 2025·2376 words

Learn how to use OpenSSL with CGO in Go to perform certificate-based encryption using CMS. Build a working CLI and integrate libcrypto APIs.

Using OpenSSL to Encrypt and Decrypt with CMS

16 November 2024·3080 words

Explore the encryption and key management capabilities of Cryptographic Message Syntax (CMS, aka PKCS#7) with this guide featuring complete OpenSSL CLI examples.

End-to-End security for sensitive data using CMS (aka PKCS7)

11 November 2024·3033 words

Cryptographic Message Syntax (CMS, aka PKCS#7) is an end-to-end security format. This article exlores the available encryption and key management capabilities.

Convert X509v3 certificate from ASN1 DER to PEM using OpenSSL

26 October 2024·2087 words

This post walks you through the terms and technologies involved when converting a X509v3 certificate from ASN.1 DER to Base64 to PEM.