W/SECURE SDK - A powerful SDK for creation of secure encrypted sessions between on-line applications.Entrust Technologies - Secure Wireless m-Business Solutions
SmartTrust - Secure transactions and exchange of information via the mobile phone with PKI security.
Diversinet - Passport Certificate Server Security software for wireless e-commerce applications.
iD2 - PKI, public key infrastructure, smart cards.
Freecerts - Free WAP certificates for test purposes. The service is based on software developed by the OpenSSL Project.
Attacks against the WAP WTLS Protocol - Article by Markku-Juhani Saarinen.