Generate code verifier and code challenge for OAuth with PKCE online. You can either use your own string as a Code Verifier or let the tool generate a Random String for using as a Code Verifier (recommended). Uses SHA256 to generate the Code Verifier and returns the output Base64Encoded.
PKCE stands for Proof Key for Code Exchange. code_challenge_method and code_challenge are used if the Token Server supports PKCE. It is an extension to authorization_code flow to prevent injection attacks and mitigate other security risks involved when the client is requesting for code from the Token Server.Learn more about Authorization Code Grant and PKCE
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