[openssl-users] AESCBC support in SSL

[Dmitry Belyavsky]

Do you use any RedHat-based OS?

On Mon, Nov 19, 2018 at 8:54 AM ASHIQUE CK <ckashiquekvk at gmail.com> wrote:

> Is it the problem with that strings or  TLS/SSL version or any other ?
>
> On Mon, Nov 19, 2018 at 11:12 AM ASHIQUE CK <ckashiquekvk at gmail.com>
> wrote:
>
>> Hi,
>> I had given all the cipher strings for  "SSL_CTX_set_cipher_list" which
>> we get under the command 'openssl ciphers' that includes CBC, but any of
>> them didnot worked. All of them showed the error "error:141640B5:SSL
>> routines:tls_construct_client_hello:no ciphers available". I have used
>> TLSv1_2 or SSLv23.
>> Also I have tried setting  these strings for "SSLCipherSuite" at apache
>> server configuration. But it makes no change for choosing the server
>> default ciphersuit "ECDHE-RSA-AES256-GCM-SHA384".
>>
>> Thanks
>>
>> On Fri, Nov 16, 2018 at 9:15 PM Viktor Dukhovni <
>> openssl-users at dukhovni.org> wrote:
>>
>>>
>>>
>>> > On Nov 16, 2018, at 7:45 AM, ASHIQUE CK <ckashiquekvk at gmail.com>
>>> wrote:
>>> >
>>> > Does SSL connection supports AESCBC?
>>>
>>> Yes, but not under that name.
>>>
>>> >  I could not set AESCBC in "SSL_CTX_set_cipher_list" at client side or
>>> in "SSLCipherSuite" at apache server side.
>>>
>>> For example (constrained also to RSA and ECDHE to keep the list short):
>>>
>>>   $ openssl ciphers -v 'AES128+aRSA+kECDHE:!AESGCM'
>>>   ECDHE-RSA-AES128-SHA256 TLSv1.2 Kx=ECDH Au=RSA Enc=AES(128) Mac=SHA256
>>>   ECDHE-RSA-AES128-SHA TLSv1 Kx=ECDH Au=RSA Enc=AES(128) Mac=SHA1
>>>
>>> There isn't a cipherlist property that specifically selects CBC, so to
>>> get *only* CBC, you need to exclude AESGCM (and perhaps also AESCCM).
>>>
>>> --
>>>         Viktor.
>>>
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-- 
SY, Dmitry Belyavsky
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