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Three things take up a surprising share of every Delphi backend project, and none of them is business logic: deciding where each customer's data lives, turning a server you can debug into one you can deploy as a Windows service or a Linux da...

The use of compressed files is mainstream and many format-algorithm combinations exist to reduce the amount of data stored on computer or exchanged over the Internet.One of the most used, and historical, compressio...

In previous blog posts on crypto, we discussed the signing of documents with tokens and proposed a simple tool to check the content of a PKCS#11 token. We also introduced digital signatures, X509, ASN.1, CMS, PDF and ETSI standards for signa...

The TMS team has released version 5.0.9.5 of the Cryptography Pack (TMSCP) today. This release is a new milestone for the library as it is the first major release for a full Delphi version. BackgroundTMSCP was initially released end of ...

TMS Cryptography Pack already dealt with PDF files with PAdES, an ETSI standard to sign PDF with RSA or ECDSA private keys, that inserts signature blocks within documents. These signatures use the Cryptographic Message Syntax (CMS) format...

TMS Cryptography Pack proposes functions/procedures to generate and decode many PKIX structures using the "PEM" format. That includes certificates, keys and signatures files. It also supported the decoding of PFX certificates (with either ...

When managing secure access to remote infrastructure, understanding how cryptographic material is structured and stored is essential. While terms like "keys," "certificates," and "containers" are often used interchangeably, they represent di...

Unlike other asymmetric cryptographic algorithm, RSA can be used to sign  a message and verify its signature, as well as encrypt and decrypt a message. When developers implement public-key cryptography, an initial thought is to...