Devtools.supstudio.in

Tools/JWT

RS512

What this is

RS512 is uncommon but valid JWA. Treat key distribution like RS256. Legacy stacks that hash with SHA-512 everywhere.

Open the decoder and paste a RS512 token. Verification stays in the browser.

FAQ

Token size?
RSA signatures are large (~256 bytes for 2048-bit). ES256 is smaller if you are minting cookies.

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