diff --git a/src/Esia/Signer/CliCryptoProSigner.php b/src/Esia/Signer/CliCryptoProSigner.php
new file mode 100644
index 0000000..2f10465
--- /dev/null
+++ b/src/Esia/Signer/CliCryptoProSigner.php
@@ -0,0 +1,74 @@
+<?php
+
+namespace Esia\Signer;
+
+use Esia\Signer\Exceptions\NoSuchTmpDirException;
+use Esia\Signer\Exceptions\SignFailException;
+
+final class CliCryptoProSigner implements SignerInterface
+{
+    private $toolPath;
+    private $thumbprint;
+    private $pin;
+    private $tempDir;
+
+    public function __construct(
+        string $toolPath,
+        string $thumbprint,
+        ?string $pin = null,
+        ?string $tempDir = null
+    ) {
+        $this->toolPath = $toolPath;
+        $this->thumbprint = $thumbprint;
+        $this->pin = $pin;
+        $this->tempDir = $tempDir ?? sys_get_temp_dir();
+
+        if (!file_exists($this->tempDir)) {
+            throw new NoSuchTmpDirException('Temporary folder is not found');
+        }
+        if (!is_writable($this->tempDir)) {
+            throw new NoSuchTmpDirException('Temporary folder is not writable');
+        }
+    }
+
+    public function sign(string $message): string
+    {
+        $tempPath = tempnam($this->tempDir, 'cryptcp');
+        file_put_contents($tempPath, $message);
+
+        try {
+            return $this->signFile($tempPath);
+        } catch (SignFailException $e) {
+            unlink($tempPath);
+
+            throw $e;
+        }
+    }
+
+    private function signFile(string $tempPath): string
+    {
+        $command = "$this->toolPath -signf -dir $this->tempDir -cert -thumbprint $this->thumbprint";
+        if ($this->pin) {
+            $command .= " -pin $this->pin";
+        }
+        $command .= " $tempPath";
+
+        $output = null;
+        $resultCode = null;
+        exec($command, $output, $resultCode);
+
+        if ($resultCode !== 0) {
+            throw new SignFailException('Failure signing: ' . implode("\n", $output));
+        }
+
+        $signatureFilePath = $tempPath . '.sgn';
+        $signature = file_get_contents($signatureFilePath);
+        unlink($signatureFilePath);
+
+        if (!$signature) {
+            throw new SignFailException("Failure reading $signatureFilePath");
+        }
+
+        return $signature;
+    }
+}
diff --git a/src/Esia/Signer/CryptoProSigner.php b/src/Esia/Signer/CryptoProSigner.php
new file mode 100644
index 0000000..4ef6c04
--- /dev/null
+++ b/src/Esia/Signer/CryptoProSigner.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace Esia\Signer;
+
+use Esia\Signer\Exceptions\SignFailException;
+
+final class CryptoProSigner implements SignerInterface
+{
+    private $thumbprint;
+    private $pin;
+
+    public function __construct(
+        string $thumbprint,
+        ?string $pin = null
+    ) {
+        $this->thumbprint = $thumbprint;
+        $this->pin = $pin;
+    }
+
+    public function sign(string $message): string
+    {
+        $store = new \CPStore();
+        $store->Open(CURRENT_USER_STORE, 'My', STORE_OPEN_READ_ONLY);
+
+        $certificates = $store->get_Certificates();
+        $found = $certificates->Find(CERTIFICATE_FIND_SHA1_HASH, $this->thumbprint, 0);
+        $certificate = $found->Item(1);
+        if (!$certificate) {
+            throw new SignFailException('Cannot read the certificate');
+        }
+        if ($certificate->HasPrivateKey() === false) {
+            throw new SignFailException('Cannot read the private key');
+        }
+
+        $signer = new \CPSigner();
+        $signer->set_Certificate($certificate);
+        if ($this->pin) {
+            $signer->set_KeyPin($this->pin);
+        }
+
+        $sd = new \CPSignedData();
+        $sd->set_ContentEncoding(BASE64_TO_BINARY);
+        $sd->set_Content(base64_encode($message));
+
+        return $sd->SignCades($signer, CADES_BES, true, ENCODE_BASE64);
+    }
+}
diff --git a/tests/unit/Signer/CliCryptoProSignerTest.php b/tests/unit/Signer/CliCryptoProSignerTest.php
new file mode 100644
index 0000000..850622c
--- /dev/null
+++ b/tests/unit/Signer/CliCryptoProSignerTest.php
@@ -0,0 +1,69 @@
+<?php
+
+namespace tests\unit\Signer;
+
+use Esia\Signer\CliCryptoProSigner;
+
+class CliCryptoProSignerTest extends \Codeception\Test\Unit
+{
+    protected function setUp(): void
+    {
+        $output = null;
+        $resultCode = null;
+        // Suppose cryptcp is in your PATH
+        exec('cryptcp -help', $output, $resultCode);
+
+        if ($resultCode !== 0) {
+            $this->markTestSkipped('The cryptcp utility is not available');
+        }
+    }
+
+    public function testSign(): void
+    {
+        $signer = new CliCryptoProSigner(
+            'cryptcp',
+            '745187e5c161cd2e3130d886f9df4492fa270685',
+            'test'
+        );
+
+        $signature = $signer->sign('test');
+
+        file_put_contents(codecept_log_dir('content'), 'test');
+        $signature = base64_decode(strtr($signature, '-_', '+/'));
+        file_put_contents(codecept_log_dir('signature'), $signature);
+        $command = sprintf(
+            "openssl smime -verify -inform DER -in %s -CAfile %s -content %s",
+            codecept_log_dir('signature'),
+            codecept_data_dir('server.crt'),
+            codecept_log_dir('content')
+        );
+        $output = null;
+        $resultCode = null;
+        exec($command, $output, $resultCode);
+        self::assertEquals(0, $resultCode, 'OpenSSL verification failure');
+    }
+
+    public function testTempDirDoesNotExists(): void
+    {
+        $this->expectException(\Esia\Signer\Exceptions\NoSuchTmpDirException::class);
+
+        new CliCryptoProSigner(
+            '/opt/cprocsp/bin/amd64/cryptcp',
+            '66821344ce484aceb984d887b303544bfdda8ea4',
+            null,
+            '/'
+        );
+    }
+
+    public function testTempDirIsNotWritable(): void
+    {
+        $this->expectException(\Esia\Signer\Exceptions\NoSuchTmpDirException::class);
+
+        new CliCryptoProSigner(
+            '/opt/cprocsp/bin/amd64/cryptcp',
+            '66821344ce484aceb984d887b303544bfdda8ea4',
+            null,
+            codecept_log_dir('non_writable_directory')
+        );
+    }
+}