Information security [electronic resource] : advances and remaining challenges to adoption of public key infrastructure technology : report to the chairman, Subcommittee on Government Efficiency, financial Management and Intergovernmental Relations, Committee on Government Reform, House of Representatives / United States General Accounting Office.
- Washington, D.C. (P.O. Box 37050, Washington, D.C. 20013) : The Office, 
- Government document
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