Module tokens 

Constants

ACCESS_TOKEN_LENGTH 🔒

USER_CODE_ALPHABET 🔒

Crockford base32 alphabet (excludes I, L, O, U to avoid ambiguity with 1/0).

USER_CODE_GROUP_LEN 🔒

Number of characters in each dash-separated group of a user code.

Functions

generate_access_token

Generate a cryptographically strong opaque token suitable for access/refresh/auth codes.

generate_user_code

Generate a human-typable user_code for the OAuth 2.0 Device Authorization Grant (RFC 8628).

token_digest_sha256

Produce a Digest (HMAC-SHA-256) from an access/refresh token plaintext using a secret key.