How to Enable Weak Ciphers OpenSSL 1.1.1h installation

Dmitry Belyavsky beldmit at gmail.com
Mon Oct 26 06:46:06 UTC 2020


If you have just built the openssl, try to set the LD_LIBRARY_PATH
environment variable pointing to freshly built libcrypto/libssl

On Mon, Oct 26, 2020 at 9:33 AM Satyam Mehrotra <satyam226 at gmail.com> wrote:

> Hello,
>
> Any Suggestions on how this can be done ?
> why openssl binary is crashing if i am compiling it with *-enable-weak-ssl-ciphers
> ,* also what is the location of the crash file.
>
> Thanks
> Satyam
>
> On Sun, 25 Oct 2020 at 12:57, Satyam Mehrotra <satyam226 at gmail.com> wrote:
>
>> Hello Everyone,
>>
>> I have just joined the openssl users community.
>> My requirement is to have the SSLv3 and weak ciphers enable  with openssl
>> installation .
>> I have a query regarding enabling SSLv3 protocol and weak ciphers with
>> openssl-1.1.1h installation
>>
>> I have followed the below steps
>>
>> 1)  *./config -enable-weak-ssl-ciphers*
>>
>>
>> *2) The Makefile looks as below*
>>
>> *===============================*
>>
>>
>> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>
>>
>> ##
>>
>> ## Makefile for OpenSSL
>>
>> ##
>>
>> ## WARNING: do not edit!
>>
>> ## Generated by Configure from Configurations/common0.tmpl,
>> Configurations/unix-Makefile.tmpl, Configurations/common.tmpl
>>
>>
>> PLATFORM=linux-x86_64
>>
>> OPTIONS=-enable-weak-ssl-ciphers no-asan no-buildtest-c++
>> no-crypto-mdebug no-crypto-mdebug-backtrace no-devcryptoeng
>> no-ec_nistp_64_gcc_128 no-egd no-external-tests no-fuzz-afl
>> no-fuzz-libfuzzer no-heartbeats no-md2 no-msan no-rc5 no-sctp no-ubsan
>> no-unit-test no-zlib no-zlib-dynamic
>>
>> CONFIGURE_ARGS=("linux-x86_64", "-enable-weak-ssl-ciphers")
>>
>> SRCDIR=.
>>
>> BLDDIR=.
>>
>>
>> VERSION=1.1.1h
>>
>> MAJOR=1
>>
>> MINOR=1.1
>>
>> SHLIB_VERSION_NUMBER=1.1
>>
>> SHLIB_VERSION_HISTORY=
>>
>> SHLIB_MAJOR=1
>>
>> SHLIB_MINOR=1
>>
>> SHLIB_TARGET=linux-shared
>>
>> SHLIB_EXT=.so.$(SHLIB_VERSION_NUMBER)
>>
>> SHLIB_EXT_SIMPLE=.so
>>
>> SHLIB_EXT_IMPORT=
>>
>>
>> LIBS=apps/libapps.a libcrypto.a libssl.a test/libtestutil.a
>>
>> SHLIBS=libcrypto$(SHLIB_EXT) libssl$(SHLIB_EXT)
>>
>> SHLIB_INFO=";" "libcrypto$(SHLIB_EXT);libcrypto$(SHLIB_EXT_SIMPLE)"
>> "libssl$(SHLIB_EXT);libssl$(SHLIB_EXT_SIMPLE)" ";"
>>
>> ENGINES=engines/afalg.so engines/capi.so engines/dasync.so
>> engines/ossltest.so engines/padlock.so
>>
>> @
>>
>>
>> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>
>>
>> if i do any openssl operations it gives error ( core dumped )
>>
>>
>>       *./openssl ciphers -V*
>>
>> *       Segmentation fault (core dumped)*
>>
>>
>> *Can someone help me in resolving this issue ?*
>>
>>
>> If i don't use option* "**-enable-weak-ssl-ciphers "  *then the above
>> issue is not seen but SSLv3 and weak ciphers do not get enable.
>>
>>
>> Thanks
>>
>> Satyam
>>
>

-- 
SY, Dmitry Belyavsky
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