diff options
| -rw-r--r-- | package/dropbear/Config.in | 10 | ||||
| -rw-r--r-- | package/dropbear/dropbear.mk | 12 |
2 files changed, 21 insertions, 1 deletions
diff --git a/package/dropbear/Config.in b/package/dropbear/Config.in index 5d6b83b6d1..62f77bad9d 100644 --- a/package/dropbear/Config.in +++ b/package/dropbear/Config.in @@ -56,4 +56,14 @@ config BR2_PACKAGE_DROPBEAR_LASTLOG Enable logging of dropbear access to lastlog. Notice that Buildroot does not generate lastlog by default. +config BR2_PACKAGE_DROPBEAR_LEGACY_CRYPTO + bool "enable legacy crypto" + help + Enable legacy and possibly insecure algorithms: + 3DES encryption + SHA1-96 message integrity + CBC encryption mode + DSA public keys + Diffie-Hellman Group1 key exchange + endif diff --git a/package/dropbear/dropbear.mk b/package/dropbear/dropbear.mk index bb902bc7ce..7b1468cfb1 100644 --- a/package/dropbear/dropbear.mk +++ b/package/dropbear/dropbear.mk @@ -56,13 +56,23 @@ endef DROPBEAR_POST_EXTRACT_HOOKS += DROPBEAR_SVR_PASSWORD_AUTH endif +define DROPBEAR_DISABLE_LEGACY_CRYPTO + echo '#define DROPBEAR_3DES 0' >> $(@D)/localoptions.h + echo '#define DROPBEAR_ENABLE_CBC_MODE 0' >> $(@D)/localoptions.h + echo '#define DROPBEAR_SHA1_96_HMAC 0' >> $(@D)/localoptions.h + echo '#define DROPBEAR_DSS 0' >> $(@D)/localoptions.h + echo '#define DROPBEAR_DH_GROUP1 0' >> $(@D)/localoptions.h +endef +ifneq ($(BR2_PACKAGE_DROPBEAR_LEGACY_CRYPTO),y) +DROPBEAR_POST_EXTRACT_HOOKS += DROPBEAR_DISABLE_LEGACY_CRYPTO +endif + define DROPBEAR_ENABLE_REVERSE_DNS echo '#define DO_HOST_LOOKUP 1' >> $(@D)/localoptions.h endef define DROPBEAR_BUILD_FEATURED echo '#define DROPBEAR_SMALL_CODE 0' >> $(@D)/localoptions.h - echo '#define DROPBEAR_BLOWFISH 1' >> $(@D)/localoptions.h echo '#define DROPBEAR_TWOFISH128 1' >> $(@D)/localoptions.h echo '#define DROPBEAR_TWOFISH256 1' >> $(@D)/localoptions.h endef |
