From 44c3c0528a6b4b42a8351e6bfd430c61b28a3b6b Mon Sep 17 00:00:00 2001 From: Thomas Augsten Date: Thu, 1 Apr 2021 17:00:04 +0200 Subject: [PATCH] Update event_registration.md --- event_registration.md | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/event_registration.md b/event_registration.md index d40e58b..e2e2a3f 100644 --- a/event_registration.md +++ b/event_registration.md @@ -115,10 +115,10 @@ message CWALocationData { The ID of a venue is derived as the SHA-256 hash of the concatenated byte representation of the string `CWA-GUID` and the byte representation of the Protocol Buffer message `QRCodePayload`. The `cryptographicSeed` adds sufficient entropy so that any modifications to the QR result in a unique ID. -A `QRCodePayload` is base32-encoded and included in a URL. The URL is the content of the QR code and structures as follows: +A `QRCodePayload` is base64-encoded and included in a URL. The URL is the content of the QR code and structures as follows: ```text -https://e.coronawarn.app?v=1# +https://e.coronawarn.app?v=1# # example: CWA Germany: @@ -129,7 +129,6 @@ CLEA FR: https://tac.gouv.fr?v=1#Y2xlYQ== ``` -The base32 encoding allows to leverage the input mode _alphanumeric_ when generating the QR code and produces a QR code with a lower density compared to base64 encoding. ### QR Code Compatibility with Other Contract Tracing Apps in Germany DRAFT