numericClaim only accepted exp as a json number, but some emitters
serialize it as a quoted string. a token with a past string exp was
reported as missing exp instead of expired, an expiry false negative
and a missing-claim false positive on the same token. also parse a
string value via strconv.ParseFloat, falling back to absent when it
does not parse.
jwt fetches the target once then analyzes every harvested token offline:
flags alg:none, the rs256->hs256 confusion surface, missing/expired exp
and plaintext sensitive claims, and cracks a small bundled weak-hmac list.
openapi probes the conventional spec paths, parses json/yaml and enumerates
paths plus unauthenticated operations. favicon computes the shodan-style
mmh3 hash (python base64.encodebytes chunking, signed int32) for tech
fingerprinting and the http.favicon.hash pivot, pinned by a golden test.
