tree 76ed0294502f0706c94ca5e5e2cb06553b155c06
parent 86e3e869377b05a7143dfa07a4d1219881396661
author elburrito <elburrito@google.com> 1720032241 -0700
committer Copybara-Service <copybara-worker@google.com> 1720032299 -0700

BlindSignAuth: Switch to WebSafeBase64EscapeWithPadding for token and extensions in PrivacyPassTokenData, per version 02 of draft-wood-privacypass-auth-scheme-extensions.

Tested using `google3/gfe/privacy_proxy/util/testing/client/privacy_proxy_client_bin.cc` in two-hop mode against both ProxyBs, padded tokens + extensions were successfully spent.

PiperOrigin-RevId: 649149482