General Engineering:
Requirements Development and Review
System Architecture Development
System-Level Design and Functional Allocation
Specification Development
Systems Dependency Analysis
System Security Analysis
Independent Verification and Validation (IV&V)

Information Assurance (IA):
Secure Electronic Mail and Directory Systems
Public Key Infrastructure (PKI)

Certificate Profiles and Policies Public-Key Enabling Tokens

Key Management Infrastructure (KMI)
Access Control & Privilege Management Infrastructure (PMI)
Web Services Security
Cryptography
Legal Requirements

FISMA HIPAA Sarbox

Common Criteria and Protection Profiles
Certification and Accreditation

DITSCAP NIACAP NISCAP

Security Policy Development and Review

Protocols for Data Communications & Telecommunications:
Research, Development & Design
Implementation & Prototyping
Specification Development & Standardization
Requirements Development & Review
Independent Verification and Validation (IV&V)
Electronic Mail Systems:

Simple Mail Transport Protocol (SMTP) and related standards X.400 Message Handling Services

Directory Services:

Lightweight Directory Access Protocol (LDAP) X.500 Directory Services

Web Services:

Hyper-Text Transfer Protocol (HTTP) eXtensible Markup Language (XML) Simple Object Access Protocol (SOAP) Universal Description, Discovery and Integration (UDDI) Web Services Description Language (WSDL)

Chat Services:

Extensible Messaging and Presence Protocol (XMPP) Session Initiation Protocol (SIP) and SIMPLE

Technical Standardization:
Internet Engineering Task Force (IETF)
Electronic Mail Association (EMA)
International Telecommunications Union (ITU-T)
International Organization for Standardization (ISO)
Institute for Electrical and Electronic Engineers (IEEE)
World Wide Web Consortium (W3C)
Organization for the Advancement of Structured Information Standards (OASIS)
Electronics Industry Association (EIA)
NIST Information Technology Laboratory (ITL) -- FIPS