tree 093ad24af203c3d7d00509b29c22dca226954dd0
parent 2682ddc9f58f9f50377039b35d26007c68521f28
author Alex Vaghin <alex@cloudware.io> 1566572135 +0200
committer Alex Vaghin <ddos@google.com> 1569498577 +0000

acme: add KID variant to jwsEncodeJSON

RFC8555 requires that most requests contain "kid" field in the
protected header. The JWK version is still used for new account
creation and certificate revocation requests. Previously,
in earlier drafts JWK variant was used exclusively.

While JWK is computed based off the account public key,
the new "kid" field takes literal value of the Account URL
provided by the CA during a new registration. The actual support
for KID-based JWS requests in Client will be added in a follow up CL.

For what concerns the existing behaviour of JWS requests,
a new field "url" is added to the protected header.
Before:

    {"alg":"...", "jwk":"...", "nonce":"..."}

After:

    {"alg":"...", "jwk":"...", "nonce":"...", "url":"..."}

where the new field takes a value of the target request URL.
This still works for CAs supporting pre-RFC protocol versions.

Updates golang/go#21081

Change-Id: I460cfcd3dfdfe7fe3009a92a0a8a709fa07d0e7a
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/191601
Run-TryBot: Alex Vaghin <ddos@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>