Skip to content

Add signature_algorithms_cert extension to _serverTLS13Handshake #513

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
wants to merge 4 commits into
base: master
Choose a base branch
from
Draft

Add signature_algorithms_cert extension to _serverTLS13Handshake #513

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
d88c16b
Add signature_algorithms_cert extension to the "_serverTLS13Handshake…
odinmylord Apr 9, 2024
207aa80
Fix names and update _sigHashesToList
odinmylord Apr 11, 2024
bd28f87
Fix issues with linter
odinmylord Apr 12, 2024
c2272ee
fix long lines
odinmylord Apr 12, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
8 changes: 8 additions & 0 deletions tlslite/handshakesettings.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -396,6 +396,10 @@ def _init_misc_extensions(self):
# resumed connections (as tickets are single-use in TLS 1.3
self.ticket_count = 2
self.record_size_limit = 2**14 + 1 # TLS 1.3 includes content type
# data needed for the signature algorithms cert extension
self.more_sig_schemes_cert = []
self.ecdsaSigHashesCert = []
self.rsaSigHashesCert = []

def __init__(self):
"""Initialise default values for settings."""
Expand Down Expand Up @@ -675,6 +679,10 @@ def _copy_extension_settings(self, other):
other.max_early_data = self.max_early_data
other.ticket_count = self.ticket_count
other.record_size_limit = self.record_size_limit
# signature algorithms cert
other.more_sig_schemes_cert = self.more_sig_schemes_cert
other.ecdsaSigHashesCert = self.ecdsaSigHashesCert
other.rsaSigHashesCert = self.rsaSigHashesCert

@staticmethod
def _remove_all_matches(values, needle):
Expand Down
8 changes: 7 additions & 1 deletion tlslite/tlsconnection.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2830,9 +2830,15 @@ def _serverTLS13Handshake(self, settings, clientHello, cipherSuite,
cr_settings.dsaSigHashes = []
valid_sig_algs = self._sigHashesToList(cr_settings)
assert valid_sig_algs

cr_settings.more_sig_schemes = cr_settings.more_sig_schemes_cert
cr_settings.ecdsaSigHashes = cr_settings.ecdsaSigHashesCert
cr_settings.rsaSigHashes = cr_settings.rsaSigHashesCert
valid_sig_algs_cert = self._sigHashesToList(cr_settings)
certificate_request = CertificateRequest(self.version)
certificate_request.create(context=ctx, sig_algs=valid_sig_algs)
if valid_sig_algs_cert:
sig_algs_cert_ext = SignatureAlgorithmsCertExtension().create(valid_sig_algs_cert)
certificate_request.addExtension(sig_algs_cert_ext)
self._queue_message(certificate_request)

certificate = Certificate(CertificateType.x509, self.version)
Expand Down