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What's New in CryptoSys PKI Pro 1.2

CryptoSys PKI Pro 1.2 (v12.0) was released on 20 June 2018. This page looks at some of the new features and gives example code.

What's New? | Examples | Contact us

What's New?

The major change is the addition of the RSA-PSS signature algorithm and RSA-OAEP encryption. These RSA algorithms are now becoming compulsory around the world, in particular in Germany (see, for example, Best Practice zur Security Schnittstelle, pdf 487 kB). We've also added support for elliptic curve keys and ECDSA signatures in X.509 certificates and some other goodies, including ZLIB compression (yes, we do listen to feedback - thanks guys).

You can create CMS (PKCS#7) signed-data objects using RSA-PSS and CMS enveloped-data objects using RSA-OAEP, as recommended by the German Health authorities.
You can create and read X.509 certificates signed with RSA-PSS.
You can create individual RSA-PSS signature values and individual ciphertext values using RSA-OAEP. These can be used for example in XML secure documents.
For more details on why these RSA variants are much more complicated than the PKCS-V1_5 ones, see RSA signature and encryption schemes.

For a full list of changes with cross-references to the new manual, see New in this version.

Examples

These examples here show the use of the new features.

Various tests in C#: TestPKIcsharpV12.cs — [test files].
- Same again in VB.NET: TestPKIvbnetV12.vb.
Add a video of your cat to an X.509 certificate: MpegOfCat.cs — [test files].
GermanHealthExamples2018.bas: VBA/VB6 code to create and read signed-and-enveloped PKCS7 (CMS) objects suitable for the Security interface for data exchange in the German health service, 2018 — [test files].
- Same again in C#: GermanHealthExamples2018.cs.
SetupAliceBobCarl.cs: Create X.509 certificates for Alice, Bob and Carl similar to those given in RFC4134 "Examples of S/MIME Messages" using RSA-PSS and ECDSA signature algorithms — [test files].
- MakeAliceRsaPss.c: Shorter example of above just for Alice using C — [test files].
- Resulting certificate files (zipped, 8.3 kB).
Vtests.bas: all the VB6/VBA examples from the manual — [test files]. Plus you'll need the ShowTextFile() function in VtestUtils.bas.

Contact

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This page last updated 15 August 2025.