# With RS256, if the private key is rotated, can old pubic key validate the JWT signature?

**URL:** <https://community.auth0.com/t/with-rs256-if-the-private-key-is-rotated-can-old-pubic-key-validate-the-jwt-signature/113587>\
**Category:** Get Help\
**Tags:** documentation-incorrect, customer-feedback\
**Created:** [August 14, 2023, 3:11pm UTC](https://community.auth0.com/t/with-rs256-if-the-private-key-is-rotated-can-old-pubic-key-validate-the-jwt-signature/113587 "2023-08-14T15:11:01Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![anlexN](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/anlexn/32/49887_2.png) [@anlexN](https://community.auth0.com/u/anlexN)\
**Post date:** [August 17, 2023, 12:38pm UTC](https://community.auth0.com/t/with-rs256-if-the-private-key-is-rotated-can-old-pubic-key-validate-the-jwt-signature/113587/4 "2023-08-17T12:38:01Z")

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@tyf  
thank you very much, teacher! can you also answer my another [question](https://community.auth0.com/t/what-information-about-the-relationship-is-retained-by-the-authorization-server/113860)?

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