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Make redbean SSL more tunable

Browse source 
This change enables SSL compression. It significantly reduces the
network load of the testing infrastructure, for free, since this
revision didn't need to change any runit protocol code. However we
turn it off by default in redbean since no browsers support it.

It turns out that some TLSv1.0 clients (e.g. curl command on RHEL5) will
send an SSLv2-style ClientHello. These types of clients are usually ten+
years old and were designed to interop with servers ten years older than
them. Your redbean is now able to interop with these clients even though
redbean doesn't actually support SSLv2 or SSLv3. Please note that the -B
flag may be passed to disable this along with TLSv1.0, TLSv1.1, 3DES, &c

The following Lua APIs have been added to redbean:

  - ProgramSslCompression(bool)
  - ProgramSslCiphersuite(name:str)
  - ProgramSslPresharedKey(key:str,identity:str)

Lastly the DHE ciphersuites have been enabled. IANA recommends DHE and
with old clients like RHEL5 it's the only perfect forward secrecy they
implement.
This commit is contained in:
Justine Tunney 2021-08-09 07:00:23 -07:00
parent d86027fe90
commit 53b9f83e1c
15 changed files with 567 additions and 227 deletions
Download patch file Download diff file Expand all files Collapse all files

38
third_party/mbedtls/ssl_ciphersuites.c vendored
View file

@ -42,17 +42,26 @@ asm(".include \"libc/disclaimer.inc\"");
*/
#if defined(MBEDTLS_SSL_TLS_C)
static const uint16_t ciphersuite_preference[] =
const uint16_t ciphersuite_preference[] =
{
#if defined(MBEDTLS_SSL_CIPHERSUITES)
MBEDTLS_SSL_CIPHERSUITES,
#else
#ifdef MBEDTLS_KEY_EXCHANGE_SOME_PFS_ENABLED
/* strong perfect forward secrecy */
MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
#endif
#ifdef MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED
MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_GCM_SHA384,
MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_GCM_SHA256,
MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CCM_SHA256,
MBEDTLS_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256,
#endif
#ifdef MBEDTLS_KEY_EXCHANGE_SOME_PFS_ENABLED
MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
MBEDTLS_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
@ -61,21 +70,14 @@ static const uint16_t ciphersuite_preference[] =
MBEDTLS_TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM,
MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,
MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256,
MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256,
MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
#endif
#ifdef MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED
MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_GCM_SHA384,
MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_GCM_SHA256,
MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CCM_SHA256,
MBEDTLS_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256,
MBEDTLS_TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256,
MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384,
MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256,
@ -83,6 +85,18 @@ static const uint16_t ciphersuite_preference[] =
MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256,
MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384,
MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256,
#endif
#ifdef MBEDTLS_KEY_EXCHANGE_SOME_PFS_ENABLED
MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
#endif
#ifdef MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED
MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA,
MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA,
@ -111,8 +125,8 @@ static const uint16_t ciphersuite_preference[] =
MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256,
MBEDTLS_TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256,
MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384,
MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256,
MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA,
MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384,
MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256,
@ -128,7 +142,7 @@ static const uint16_t ciphersuite_preference[] =
MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA,
MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA,
MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA,
MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA,
MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA, // e.g. IE 8 XP
MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA,
MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA,
MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA,