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		| Paper: | 
		Towards IVOA-Standard Access Control | 
	 
	
		| Volume: | 
		351, Astronomical Data Analysis Software and Systems XV | 
	 
	
		| Page: | 
		463 | 
	 
	
		| Authors: | 
		Rixon, G.; Morris, D. | 
	 
	
	
		| Abstract: | 
		We describe the constituent standards of IVOA's emerging profile for single-sign-on authentication, indicating where in the Virtual Observatory architecture these standards might be applied. We outline AstroGrid's preliminary implementation of these standards as demonstrated at ADASS 2005. | 
	 
	
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