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-rw-r--r--synapse/config/tls.py40
1 files changed, 0 insertions, 40 deletions
diff --git a/synapse/config/tls.py b/synapse/config/tls.py
index fef1ea99cb..bb8952c672 100644
--- a/synapse/config/tls.py
+++ b/synapse/config/tls.py
@@ -14,7 +14,6 @@
 # limitations under the License.
 
 import os
-import subprocess
 from hashlib import sha256
 
 from unpaddedbase64 import encode_base64
@@ -23,8 +22,6 @@ from OpenSSL import crypto
 
 from ._base import Config
 
-GENERATE_DH_PARAMS = False
-
 
 class TlsConfig(Config):
     def read_config(self, config):
@@ -42,10 +39,6 @@ class TlsConfig(Config):
                 config.get("tls_private_key_path")
             )
 
-        self.tls_dh_params_path = self.check_file(
-            config.get("tls_dh_params_path"), "tls_dh_params"
-        )
-
         self.tls_fingerprints = config["tls_fingerprints"]
 
         # Check that our own certificate is included in the list of fingerprints
@@ -72,7 +65,6 @@ class TlsConfig(Config):
 
         tls_certificate_path = base_key_name + ".tls.crt"
         tls_private_key_path = base_key_name + ".tls.key"
-        tls_dh_params_path = base_key_name + ".tls.dh"
 
         return """\
         # PEM encoded X509 certificate for TLS.
@@ -85,9 +77,6 @@ class TlsConfig(Config):
         # PEM encoded private key for TLS
         tls_private_key_path: "%(tls_private_key_path)s"
 
-        # PEM dh parameters for ephemeral keys
-        tls_dh_params_path: "%(tls_dh_params_path)s"
-
         # Don't bind to the https port
         no_tls: False
 
@@ -131,7 +120,6 @@ class TlsConfig(Config):
     def generate_files(self, config):
         tls_certificate_path = config["tls_certificate_path"]
         tls_private_key_path = config["tls_private_key_path"]
-        tls_dh_params_path = config["tls_dh_params_path"]
 
         if not self.path_exists(tls_private_key_path):
             with open(tls_private_key_path, "wb") as private_key_file:
@@ -165,31 +153,3 @@ class TlsConfig(Config):
                 cert_pem = crypto.dump_certificate(crypto.FILETYPE_PEM, cert)
 
                 certificate_file.write(cert_pem)
-
-        if not self.path_exists(tls_dh_params_path):
-            if GENERATE_DH_PARAMS:
-                subprocess.check_call([
-                    "openssl", "dhparam",
-                    "-outform", "PEM",
-                    "-out", tls_dh_params_path,
-                    "2048"
-                ])
-            else:
-                with open(tls_dh_params_path, "w") as dh_params_file:
-                    dh_params_file.write(
-                        "2048-bit DH parameters taken from rfc3526\n"
-                        "-----BEGIN DH PARAMETERS-----\n"
-                        "MIIBCAKCAQEA///////////JD9qiIWjC"
-                        "NMTGYouA3BzRKQJOCIpnzHQCC76mOxOb\n"
-                        "IlFKCHmONATd75UZs806QxswKwpt8l8U"
-                        "N0/hNW1tUcJF5IW1dmJefsb0TELppjft\n"
-                        "awv/XLb0Brft7jhr+1qJn6WunyQRfEsf"
-                        "5kkoZlHs5Fs9wgB8uKFjvwWY2kg2HFXT\n"
-                        "mmkWP6j9JM9fg2VdI9yjrZYcYvNWIIVS"
-                        "u57VKQdwlpZtZww1Tkq8mATxdGwIyhgh\n"
-                        "fDKQXkYuNs474553LBgOhgObJ4Oi7Aei"
-                        "j7XFXfBvTFLJ3ivL9pVYFxg5lUl86pVq\n"
-                        "5RXSJhiY+gUQFXKOWoqsqmj/////////"
-                        "/wIBAg==\n"
-                        "-----END DH PARAMETERS-----\n"
-                    )