US 12,483,420 B2
Secure authentication artifact signing service for authentication system
Sarvani Kumar Bhamidipati, Snoqualmie, WA (US); Oren Jordan Melzer, Kirkland, WA (US); Victor William Habib Boctor, Bellevue, WA (US); and Randeep Singh, Delta (CA)
Assigned to MICROSOFT TECHNOLOGY LICENSING, LLC, Redmond, WA (US)
Filed by Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed on Apr. 29, 2022, as Appl. No. 17/732,749.
Prior Publication US 2023/0353381 A1, Nov. 2, 2023
Int. Cl. H04L 29/06 (2006.01); H04L 9/32 (2006.01)
CPC H04L 9/3247 (2013.01) 20 Claims
OG exemplary drawing
 
1. A system for authenticating a principal, comprising:
a computer-implemented first authentication system configured to:
receive, from a second authentication system, an authentication artifact associated with the principal that was generated by the second authentication system and digitally signed thereby using an encryption key,
store the authentication artifact, and
based on the second authentication system being unavailable and responsive to receiving an authentication request from a client device on behalf of the principal, generate a request comprising the authentication artifact and a specification of one or more modifications to be made to the authentication artifact; and
a computer-implemented authentication artifact signing service configured to receive the request from the first authentication system and, responsive thereto:
apply the one or more modifications to the authentication artifact to generate a modified authentication artifact,
digitally sign the modified authentication artifact using an encryption key of the second authentication system, and
return the digitally signed modified authentication artifact to the first authentication system for use in authenticating the principal.