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OpenSSL: drop preferring of Chacha20/Poly1305 over AES-GCM

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As hardware acceleration for AES is emerging (Fireinfo indicates
30.98% of reporting installations support this, compared to
28.22% in summer), there is no more reason to manually prefer
Chacha20/Poly1305 over it.

Further, overall performance is expected to increase as server
CPUs usually come with AES-NI today, where Chacha/Poly would
be an unnecessary bottleneck. Small systems without AES-NI,
however, compute Chacha/Poly measurable, but not significantly faster,
so there only was a small advantage of this.

This patch changes the OpenSSL default ciphersuite to:

TLS_CHACHA20_POLY1305_SHA256 TLSv1.3 Kx=any      Au=any  Enc=CHACHA20/POLY1305(256) Mac=AEAD
TLS_AES_256_GCM_SHA384  TLSv1.3 Kx=any      Au=any  Enc=AESGCM(256) Mac=AEAD
TLS_AES_128_GCM_SHA256  TLSv1.3 Kx=any      Au=any  Enc=AESGCM(128) Mac=AEAD
ECDHE-ECDSA-AES256-GCM-SHA384 TLSv1.2 Kx=ECDH     Au=ECDSA Enc=AESGCM(256) Mac=AEAD
ECDHE-ECDSA-CHACHA20-POLY1305 TLSv1.2 Kx=ECDH     Au=ECDSA Enc=CHACHA20/POLY1305(256) Mac=AEAD
ECDHE-ECDSA-AES128-GCM-SHA256 TLSv1.2 Kx=ECDH     Au=ECDSA Enc=AESGCM(128) Mac=AEAD
ECDHE-RSA-AES256-GCM-SHA384 TLSv1.2 Kx=ECDH     Au=RSA  Enc=AESGCM(256) Mac=AEAD
ECDHE-RSA-CHACHA20-POLY1305 TLSv1.2 Kx=ECDH     Au=RSA  Enc=CHACHA20/POLY1305(256) Mac=AEAD
ECDHE-RSA-AES128-GCM-SHA256 TLSv1.2 Kx=ECDH     Au=RSA  Enc=AESGCM(128) Mac=AEAD
ECDHE-ECDSA-AES256-SHA384 TLSv1.2 Kx=ECDH     Au=ECDSA Enc=AES(256)  Mac=SHA384
ECDHE-ECDSA-CAMELLIA256-SHA384 TLSv1.2 Kx=ECDH     Au=ECDSA Enc=Camellia(256) Mac=SHA384
ECDHE-RSA-AES256-SHA384 TLSv1.2 Kx=ECDH     Au=RSA  Enc=AES(256)  Mac=SHA384
ECDHE-RSA-CAMELLIA256-SHA384 TLSv1.2 Kx=ECDH     Au=RSA  Enc=Camellia(256) Mac=SHA384
ECDHE-ECDSA-AES128-SHA256 TLSv1.2 Kx=ECDH     Au=ECDSA Enc=AES(128)  Mac=SHA256
ECDHE-ECDSA-CAMELLIA128-SHA256 TLSv1.2 Kx=ECDH     Au=ECDSA Enc=Camellia(128) Mac=SHA256
ECDHE-RSA-AES128-SHA256 TLSv1.2 Kx=ECDH     Au=RSA  Enc=AES(128)  Mac=SHA256
ECDHE-RSA-CAMELLIA128-SHA256 TLSv1.2 Kx=ECDH     Au=RSA  Enc=Camellia(128) Mac=SHA256
DHE-RSA-AES256-GCM-SHA384 TLSv1.2 Kx=DH       Au=RSA  Enc=AESGCM(256) Mac=AEAD
DHE-RSA-CHACHA20-POLY1305 TLSv1.2 Kx=DH       Au=RSA  Enc=CHACHA20/POLY1305(256) Mac=AEAD
DHE-RSA-AES128-GCM-SHA256 TLSv1.2 Kx=DH       Au=RSA  Enc=AESGCM(128) Mac=AEAD
DHE-RSA-AES256-SHA256   TLSv1.2 Kx=DH       Au=RSA  Enc=AES(256)  Mac=SHA256
DHE-RSA-CAMELLIA256-SHA256 TLSv1.2 Kx=DH       Au=RSA  Enc=Camellia(256) Mac=SHA256
DHE-RSA-AES128-SHA256   TLSv1.2 Kx=DH       Au=RSA  Enc=AES(128)  Mac=SHA256
DHE-RSA-CAMELLIA128-SHA256 TLSv1.2 Kx=DH       Au=RSA  Enc=Camellia(128) Mac=SHA256
ECDHE-ECDSA-AES256-SHA  TLSv1 Kx=ECDH     Au=ECDSA Enc=AES(256)  Mac=SHA1
ECDHE-ECDSA-AES128-SHA  TLSv1 Kx=ECDH     Au=ECDSA Enc=AES(128)  Mac=SHA1
ECDHE-RSA-AES256-SHA    TLSv1 Kx=ECDH     Au=RSA  Enc=AES(256)  Mac=SHA1
ECDHE-RSA-AES128-SHA    TLSv1 Kx=ECDH     Au=RSA  Enc=AES(128)  Mac=SHA1
DHE-RSA-AES256-SHA      SSLv3 Kx=DH       Au=RSA  Enc=AES(256)  Mac=SHA1
DHE-RSA-CAMELLIA256-SHA SSLv3 Kx=DH       Au=RSA  Enc=Camellia(256) Mac=SHA1
DHE-RSA-AES128-SHA      SSLv3 Kx=DH       Au=RSA  Enc=AES(128)  Mac=SHA1
DHE-RSA-CAMELLIA128-SHA SSLv3 Kx=DH       Au=RSA  Enc=Camellia(128) Mac=SHA1
AES256-GCM-SHA384       TLSv1.2 Kx=RSA      Au=RSA  Enc=AESGCM(256) Mac=AEAD
AES128-GCM-SHA256       TLSv1.2 Kx=RSA      Au=RSA  Enc=AESGCM(128) Mac=AEAD
AES256-SHA256           TLSv1.2 Kx=RSA      Au=RSA  Enc=AES(256)  Mac=SHA256
CAMELLIA256-SHA256      TLSv1.2 Kx=RSA      Au=RSA  Enc=Camellia(256) Mac=SHA256
AES128-SHA256           TLSv1.2 Kx=RSA      Au=RSA  Enc=AES(128)  Mac=SHA256
CAMELLIA128-SHA256      TLSv1.2 Kx=RSA      Au=RSA  Enc=Camellia(128) Mac=SHA256
AES256-SHA              SSLv3 Kx=RSA      Au=RSA  Enc=AES(256)  Mac=SHA1
CAMELLIA256-SHA         SSLv3 Kx=RSA      Au=RSA  Enc=Camellia(256) Mac=SHA1
AES128-SHA              SSLv3 Kx=RSA      Au=RSA  Enc=AES(128)  Mac=SHA1
CAMELLIA128-SHA         SSLv3 Kx=RSA      Au=RSA  Enc=Camellia(128) Mac=SHA1

Signed-off-by: Peter Müller <peter.mueller@ipfire.org>
Acked-by: Michael Tremer <michael.tremer@ipfire.org>
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>
This commit is contained in:
peter.mueller@ipfire.org
2019-11-04 18:24:00 +00:00
committed by Arne Fitzenreiter
parent 1826c42b9e
commit e153efaf11
3 changed files with 12 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
lfs/openssl
View File

@@ -117,7 +117,7 @@ $(subst %,%_MD5,$(objects)) :
$(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
@$(PREBUILD)
@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar zxf $(DIR_DL)/$(DL_FILE)
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/openssl-1.1.1c-default-cipherlist.patch
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/openssl-1.1.1d-default-cipherlist.patch
# Apply our CFLAGS
cd $(DIR_APP) && sed -i Configure \

18
src/patches/openssl-1.1.1c-default-cipherlist.patch
View File

@@ -1,18 +0,0 @@
diff -Naur openssl-1.1.1c.orig/include/openssl/ssl.h openssl-1.1.1c/include/openssl/ssl.h
--- openssl-1.1.1c.orig/include/openssl/ssl.h 2019-06-10 20:41:21.209140012 +0200
+++ openssl-1.1.1c/include/openssl/ssl.h 2019-06-10 20:42:26.733973129 +0200
@@ -170,11 +170,11 @@
* an application-defined cipher list string starts with 'DEFAULT'.
* This applies to ciphersuites for TLSv1.2 and below.
*/
-# define SSL_DEFAULT_CIPHER_LIST "ALL:!COMPLEMENTOFDEFAULT:!eNULL"
+# define SSL_DEFAULT_CIPHER_LIST "CHACHA20:HIGH:+aRSA:+SHA384:+SHA256:+DH:+SHA:+kRSA:!eNULL:!aNULL:!PSK:!SRP:!AESCCM:!DSS"
/* This is the default set of TLSv1.3 ciphersuites */
# if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
-# define TLS_DEFAULT_CIPHERSUITES "TLS_AES_256_GCM_SHA384:" \
- "TLS_CHACHA20_POLY1305_SHA256:" \
+# define TLS_DEFAULT_CIPHERSUITES "TLS_CHACHA20_POLY1305_SHA256:" \
+ "TLS_AES_256_GCM_SHA384:" \
"TLS_AES_128_GCM_SHA256"
# else
# define TLS_DEFAULT_CIPHERSUITES "TLS_AES_256_GCM_SHA384:" \

11
src/patches/openssl-1.1.1d-default-cipherlist.patch Normal file
View File

@@ -0,0 +1,11 @@
--- openssl-1.1.1d.orig/include/openssl/ssl.h 2019-11-04 19:13:08.801905796 +0100
+++ openssl-1.1.1d/include/openssl/ssl.h 2019-11-04 19:14:05.229896747 +0100
@@ -170,7 +170,7 @@
* an application-defined cipher list string starts with 'DEFAULT'.
* This applies to ciphersuites for TLSv1.2 and below.
*/
-# define SSL_DEFAULT_CIPHER_LIST "ALL:!COMPLEMENTOFDEFAULT:!eNULL"
+# define SSL_DEFAULT_CIPHER_LIST "HIGH:+aRSA:+SHA384:+SHA256:+DH:+SHA:+kRSA:!eNULL:!aNULL:!PSK:!SRP:!AESCCM:!DSS"
/* This is the default set of TLSv1.3 ciphersuites */
# if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
# define TLS_DEFAULT_CIPHERSUITES "TLS_AES_256_GCM_SHA384:" \