privkey

Converts a private key CryptoPro => OpenSSL container

You need to install Strawberry perl and Visual Studio C++

Contents

1. Download OpenSSL https://github.com/openssl/openssl/releases/tag/OpenSSL_1_1_1a and unpack it to dir "openssl-OpenSSL_1_1_1a"

2. Compile OpenSSL via bat-file:

call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat"
path=C:\Strawberry\perl\bin;C:\Users\D36B~1\AppData\Local\bin\NASM;%path%
perl Configure VC-WIN32 no-hw no-asm
nmake

3. Download gost https://github.com/gost-engine/engine and unpack it to dir "engine-master"

4. Use this bat-file to compile privkey.exe :

call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat"
cl -DL_ENDIAN -Iopenssl-OpenSSL_1_1_1a\ms -Iopenssl-OpenSSL_1_1_1a\include -Iengine-master ^
   privkey.c ^
   engine-master\gost89.c engine-master\gosthash.c engine-master\gost_ameth.c ^
   engine-master\gost_crypt.c engine-master\gost_ctl.c engine-master\gost_asn1.c ^
   engine-master\gost_ec_sign.c engine-master\e_gost_err.c engine-master\gost_params.c ^
   engine-master\gosthash2012.c libcrypto.lib

5. Convert CryptoPro container to OpenSSL container run:

privkey.exe a:\lp-9a0fe.000 > private.key

6. Sign file using signer.cer and private.key:

openssl cms -sign -inkey private.key -in file.txt -CAfile CA.cer -signer signer.cer -engine gost -out file.txt.sgn -outform DER -noattr -binary

7. Check sign file:

openssl cms -verify -content file.txt -in file.txt.sgn -CAfile CA.cer -signer signer.cer -engine gost -inform DER -noattr -binary

Executables

You can find the privkey.exe executable in the winfiles.rar arhive.
You can also compile Visual Studio 14.0 (as well as 2019) using comp_cl32.bat from winfiles.rar archive.