php, openssl and GOST ciphers

Hi.

I'm trying to sign an S/MIME with PHP, using a pair of GOST-encrypted 
certificate and a private key.

When using openssl itself from a console everything is fine:

/usr/local/openssl/bin/openssl cms -sign -in file.txt -out 
signedfile.txt -signer p12.pem
(signedfile.txt is created)

/usr/local/openssl/bin/openssl cms -verify -in signedfile.txt -out 
signedddata.txt -no_signer_cert_verify -issuer_checks -ignore_critical
Verification successful

When using PHP code I'm kinda stuck:

$res = openssl_pkcs7_sign("file.txt", "phpsignedfile.txt", 
'file://'.realpath('./p12.pem'), 'file://'.realpath('./p12.pem'), 
array("To" => "[email protected]", "From: FooBar <[email protected]>", "Subject" => 
"Foo Bar"));

if (!$res) {
      while ($msg = openssl_error_string())
           echo $msg . "<br />\n";
      echo "Failed to sign.\n"; exit;
}

I get:

# /usr/local/php/bin/php sign-clear.php
PHP Warning:  openssl_pkcs7_sign(): error getting private key in 
/root/tests/sign-clear.php on line 3
error:0609E09C:digital envelope routines:PKEY_SET_TYPE:unsupported 
algorithm<br />
error:0606F076:digital envelope routines:EVP_PKCS82PKEY:unsupported 
private key algorithm<br />
error:0907B00D:PEM routines:PEM_READ_BIO_PRIVATEKEY:ASN1 lib<br />
Failed to sign.

The 'error getting private key' is all the time here, except for when it 
really cannot be loaded I get the 'no start line error'. So this output 
really looks like PHP openssl module cannot find a proper cipher.

How do I tell PHP that this is a GOST cipher ? I'm telling this to 
openssl either using a config file, or using a direct '-engine gost' 
option. Is there a way to tell PHP the same thing ?

I have indeed a PHP compiled and linked to a GOST-enabled openss 1.0.1e 
(openssl module was built with PHP together):

# /usr/local/openssl/bin/openssl ciphers | grep -i GOST
ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:SRP-DSS-AES-256-CBC-SHA:SRP-RSA-AES-256-CBC-SHA:DHE-DSS-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA256:DHE-RSA-AES256-SHA:DHE-DSS-AES256-SHA:DHE-RSA-CAMELLIA256-SHA:DHE-DSS-CAMELLIA256-SHA:GOST2001-GOST89-GOST89:GOST94-GOST89-GOST89:ECDH-RSA-AES256-GCM-SHA384:ECDH-ECDSA-AES256-GCM-SHA384:ECDH-RSA-AES256-SHA384:ECDH-ECDSA-AES256-SHA384:ECDH-RSA-AES256-SHA:ECDH-ECDSA-AES256-SHA:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA:CAMELLIA256-SHA:PSK-AES256-CBC-SHA:ECDHE-RSA-DES-CBC3-SHA:ECDHE-ECDSA-DES-CBC3-SHA:SRP-DSS-3DES-EDE-CBC-SHA:SRP-RSA-3DES-EDE-CBC-SHA:EDH-RSA-DES-CBC3-SHA:EDH-DSS-DES-CBC3-SHA:ECDH-RSA-DES-CBC3-SHA:ECDH-ECDSA-DES-CBC3-SHA:DES-CBC3-SHA:PSK-3DES-EDE-CBC-SHA:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:SRP-DSS-AES-128-CBC-SHA:SRP-RSA-AES-128-CBC-SHA:DHE-DSS-AES128-GCM-SHA256:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES128-SHA256:DHE-DSS-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA:DHE-RSA-SEED-SHA:DHE-DSS-SEED-SHA:DHE-RSA-CAMELLIA128-SHA:DHE-DSS-CAMELLIA128-SHA:ECDH-RSA-AES128-GCM-SHA256:ECDH-ECDSA-AES128-GCM-SHA256:ECDH-RSA-AES128-SHA256:ECDH-ECDSA-AES128-SHA256:ECDH-RSA-AES128-SHA:ECDH-ECDSA-AES128-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:SEED-SHA:CAMELLIA128-SHA:IDEA-CBC-SHA:PSK-AES128-CBC-SHA:ECDHE-RSA-RC4-SHA:ECDHE-ECDSA-RC4-SHA:ECDH-RSA-RC4-SHA:ECDH-ECDSA-RC4-SHA:RC4-SHA:RC4-MD5:PSK-RC4-SHA:EDH-RSA-DES-CBC-SHA:EDH-DSS-DES-CBC-SHA:DES-CBC-SHA:EXP-EDH-RSA-DES-CBC-SHA:EXP-EDH-DSS-DES-CBC-SHA:EXP-DES-CBC-SHA:EXP-RC2-CBC-MD5:EXP-RC4-MD5

(notice it's the default config output)

# ldd /usr/local/php/bin/php
             linux-vdso.so.1 =>  (0x00007fff42455000)
             libcrypt.so.1 => /lib/libcrypt.so.1 (0x00007f1077404000)
             libresolv.so.2 => /lib/libresolv.so.2 (0x00007f10771ee000)
             librt.so.1 => /lib/librt.so.1 (0x00007f1076fe5000)
             libmcrypt.so.4 => /usr/lib/libmcrypt.so.4 (0x00007f1076db3000)
             libltdl.so.7 => /usr/lib/libltdl.so.7 (0x00007f1076baa000)
             libdl.so.2 => /lib/libdl.so.2 (0x00007f10769a5000)
             libfreetype.so.6 => /usr/lib/libfreetype.so.6 
(0x00007f107671d000)
             libz.so.1 => /usr/lib/libz.so.1 (0x00007f1076506000)
             libpng12.so.0 => /lib/libpng12.so.0 (0x00007f10762df000)
             libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0x00007f10760bc000)
             libcrypto.so.1.0.0 => 
/usr/local/openssl/lib/libcrypto.so.1.0.0 (0x00007f1075ce2000)
             libssl.so.1.0.0 => /usr/local/openssl/lib/libssl.so.1.0.0 
(0x00007f1075a78000)
             libmysqlclient.so.16 => /usr/lib/libmysqlclient.so.16 
(0x00007f107565b000)
             libpthread.so.0 => /lib/libpthread.so.0 (0x00007f107543f000)
             libnsl.so.1 => /lib/libnsl.so.1 (0x00007f1075226000)
             libm.so.6 => /lib/libm.so.6 (0x00007f1074fa4000)
             libxml2.so.2 => /usr/lib/libxml2.so.2 (0x00007f1074c53000)
             libc.so.6 => /lib/libc.so.6 (0x00007f10748f0000)
             /lib64/ld-linux-x86-64.so.2 (0x00007f1077646000)

Thanks.
Eugene.