Hi Richard,
What is the default mode used for AES_encrypt/AES_decrypt calls. Is it GCM, ECB or something else?
Because I wanted to pass the same mode for EVP api's.
Thanks & Regards,
Samiya khanum
On Fri, Jan 6, 2023 at 7:32 PM <openssl-users-request@xxxxxxxxxxx> wrote:
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----------------------------------------------------------------------
Message: 1
Date: Fri, 6 Jan 2023 19:30:54 +0530
From: Samiya Khanum <samiya.khanum@xxxxxxxxxxxx>
To: openssl-users@xxxxxxxxxxx, Richard Levitte <levitte@xxxxxxxxxxx>
Cc: Kamlesh Agrawal <kamlesh.agrawal@xxxxxxxxxxxx>
Subject: Re: openssl-users Digest, Vol 98, Issue 7
Message-ID:
<CADmX34qTqeih9QX72WsCebsZDYbeGiW74u20ujBNkNnKEb7T5w@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset="utf-8"
Hi Richard,
Thanks for providing the information.
I have one more query, please help.
I have to compile an NTP application with below mentioned CFLAG to
suppress the deprecated compilation errors, but still I see a couple of
compilation issues.
CFLAGSEXTRA += \
-DOPENSSL_API_COMPAT=0x010101000L
For below EVP api's, const qualifier is added in openSSL3.0 code. To fix
these errors, I have to do type casting in many places.
We can't use "-Wdiscarded-qualifiers" FLAG in our environment, it is not
supported.
Is there any other way that I can avoid this?
Checking 'open'
../../../../vendor/ntp/util/ntp-keygen.c: In function 'main':
../../../../vendor/ntp/util/ntp-keygen.c:644:7: error: assignment discards
'const' qualifier from pointer target type [-Werror]
rsa = EVP_PKEY_get0_RSA(pkey_gqkey);
^
../../../../vendor/ntp/util/ntp-keygen.c:665:7: error: assignment discards
'const' qualifier from pointer target type [-Werror]
rsa = EVP_PKEY_get0_RSA(pkey_gqkey);
^
../../../../vendor/ntp/util/ntp-keygen.c:688:7: error: assignment discards
'const' qualifier from pointer target type [-Werror]
rsa = EVP_PKEY_get0_RSA(pkey_gqkey);
^
../../../../vendor/ntp/util/ntp-keygen.c:731:7: error: assignment discards
'const' qualifier from pointer target type [-Werror]
dsa = EVP_PKEY_get0_DSA(pkey_iffkey);
^
../../../../vendor/ntp/util/ntp-keygen.c:754:7: error: assignment discards
'const' qualifier from pointer target type [-Werror]
dsa = EVP_PKEY_get0_DSA(pkey_iffkey);
Thanks & Regards,
Samiya khanum
On Fri, Jan 6, 2023 at 5:30 PM <openssl-users-request@xxxxxxxxxxx> wrote:
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> Today's Topics:
>
> 1. Replacement for AES_encrypt (Samiya Khanum)
> 2. Re: Replacement for AES_encrypt (Richard Levitte)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 5 Jan 2023 17:42:57 +0530
> From: Samiya Khanum <samiya.khanum@xxxxxxxxxxxx>
> To: openssl-users@xxxxxxxxxxx
> Cc: Kamlesh Agrawal <kamlesh.agrawal@xxxxxxxxxxxx>
> Subject: Replacement for AES_encrypt
> Message-ID:
> <
> CADmX34oWPfjyP5j2q2xtgqr3d3TQQtfLGME4Fk5-rLr444EJsg@xxxxxxxxxxxxxx>
> Content-Type: text/plain; charset="utf-8"
>
> Hi All,
>
> We are upgrading our code to openSSL 3.0.
>
> I have replaced AES_set_encrypt_key and AES_encrypt
> with EVP_CipherInit_ex, EVP_CipherUpdate and EVP_CipherFinal_ex.
> In the below function what should be the cipher parameter(second argument).
> Because in AES_encryt api, we don't mention any block cipher.
> Is it EVP_aes_128_cbc() algorithm that we should use?
>
> int EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx,
> *const EVP_CIPHER *cipher,* ENGINE *impl,
> const unsigned char *key,
> const unsigned char *iv, int enc);
>
> Thanks & Regards,
> Samiya khanum
>
> --
> This electronic communication and the information and any files
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> ------------------------------
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> Message: 2
> Date: Fri, 06 Jan 2023 08:19:33 +0100
> From: Richard Levitte <levitte@xxxxxxxxxxx>
> To: openssl-users@xxxxxxxxxxx, Kamlesh Agrawal
> <kamlesh.agrawal@xxxxxxxxxxxx>
> Subject: Re: Replacement for AES_encrypt
> Message-ID: <871qo8ruyi.wl-levitte@xxxxxxxxxxx>
> Content-Type: text/plain; charset=ISO-8859-1
>
> EVP_aes_128_cbc() is still usable to get the appropriate EVP_CIPHER
> reference, but is regarded legacy.
>
> With OpenSSL 3.0 and providers, the new method to get the algorithm
> you want is by fetching, in this case using EVP_CIPHER_fetch().
>
> In https://www.openssl.org/docs/man3.0/man7/crypto.html#FETCHING-EXAMPLES,
> there is an example that demonstrates fetching exactly the algorithm
> your asking for, "AES-128-CBC".
>
> If you want to know exactly what algorithms are available to you (by name),
> 'openssl list' is your friend. For example, this command shows all
> the default cipher algorithms:
>
> openssl list -cipher-algorithms
>
> You will notice that the output is divided into two sections,
> "Legacy:" and "Provided:". The latter is more future proof set of
> names.
>
> Cheers,
> Richard
>
> On Thu, 05 Jan 2023 13:12:57 +0100,
> Samiya Khanum via openssl-users wrote:
> >
> > Hi All,
> >
> > We are?upgrading our code to openSSL 3.0.
> >
> > I have?replaced? AES_set_encrypt_key? and?AES_encrypt
> with?EVP_CipherInit_ex, EVP_CipherUpdate
> > and?EVP_CipherFinal_ex.
> > In the below function what should be the cipher parameter(second
> argument). Because in AES_encryt
> > api, we don't?mention any block cipher.?
> > Is it?EVP_aes_128_cbc() algorithm that?we should use?
> >
> > int EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx,
> > ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?const EVP_CIPHER *cipher, ENGINE *impl,
> > ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?const unsigned char *key,
> > ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?const unsigned char *iv, int enc);
> > ?
> > Thanks & Regards,
> > Samiya khanum
> >
> > This electronic communication and the information and any files
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> >
> > [2 S/MIME Cryptographic Signature <application/pkcs7-signature (base64)>]
> > Good signature from 1E45BABBADAD646C644FE256D55EFC9561AABBFF /CN=Samiya
> Khanum/O=Broadcom Inc./L=Bangalore/ST=Karnataka/C=IN/EMail=
> samiya.khanum@xxxxxxxxxxxx (trust full)
> --
> Richard Levitte levitte@xxxxxxxxxxx
> OpenSSL Project http://www.openssl.org/~levitte/
>
>
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