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TODO: forbid TLS post-handshake auth and do TLS record padding

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Closes #5396
Closes #5398
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Daniel Stenberg 2020-05-18 17:59:18 +02:00
parent 17b1405b20
commit 5646e563ae
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@ -109,9 +109,11 @@
13.6 Provide callback for cert verification
13.7 improve configure --with-ssl
13.8 Support DANE
13.9 TLS record padding
13.10 Support Authority Information Access certificate extension (AIA)
13.11 Support intermediate & root pinning for PINNEDPUBLICKEY
13.12 Support HSTS
13.13 Make sure we forbid TLS 1.3 post-handshake authentication
13.14 Support the clienthello extension
14. GnuTLS
@ -744,6 +746,14 @@ that doesn't exist on the server, just like --ftp-create-dirs.
Björn Stenberg wrote a separate initial take on DANE that was never
completed.
13.9 TLS record padding
TLS (1.3) offers optional record padding and OpenSSL provides an API for it.
I could make sense for libcurl to offer this ability to applications to make
traffic patterns harder to figure out by network traffic observers.
See https://github.com/curl/curl/issues/5398
13.10 Support Authority Information Access certificate extension (AIA)
AIA can provide various things like CRLs but more importantly information
@ -759,23 +769,30 @@ that doesn't exist on the server, just like --ftp-create-dirs.
CURLOPT_PINNEDPUBLICKEY does not consider the hashes of intermediate & root
certificates when comparing the pinned keys. Therefore it is not compatible
with "HTTP Public Key Pinning" as there also intermediate and root certificates
can be pinned. This is very useful as it prevents webadmins from "locking
themself out of their servers".
with "HTTP Public Key Pinning" as there also intermediate and root
certificates can be pinned. This is very useful as it prevents webadmins from
"locking themself out of their servers".
Adding this feature would make curls pinning 100% compatible to HPKP and allow
more flexible pinning.
Adding this feature would make curls pinning 100% compatible to HPKP and
allow more flexible pinning.
13.12 Support HSTS
"HTTP Strict Transport Security" is TOFU (trust on first use), time-based
features indicated by a HTTP header send by the webserver. It is widely used
in browsers and it's purpose is to prevent insecure HTTP connections after
a previous HTTPS connection. It protects against SSLStripping attacks.
in browsers and it's purpose is to prevent insecure HTTP connections after a
previous HTTPS connection. It protects against SSLStripping attacks.
Doc: https://developer.mozilla.org/en-US/docs/Web/Security/HTTP_strict_transport_security
RFC 6797: https://tools.ietf.org/html/rfc6797
13.13 Make sure we forbid TLS 1.3 post-handshake authentication
RFC 8740 explains how using HTTP/2 must forbid the use of TLS 1.3
post-handshake authentication. We should make sure to live up to that.
See https://github.com/curl/curl/issues/5396
13.14 Support the clienthello extension
Certain stupid networks and middle boxes have a problem with SSL handshake