diff --git a/MTProtoKit/MTEncryption.m b/MTProtoKit/MTEncryption.m
index eeafaed55b..f63e611dd1 100644
--- a/MTProtoKit/MTEncryption.m
+++ b/MTProtoKit/MTEncryption.m
@@ -20,6 +20,11 @@
 #import "MTAes.h"
 #import "MTRsa.h"
 
+#if TARGET_OS_IOS
+#else
+#   include <openssl/pem.h>
+#endif
+
 NSData *MTSha1(NSData *data)
 {
     uint8_t digest[20];
@@ -236,12 +241,39 @@ NSData *MTAesDecrypt(NSData *data, NSData *key, NSData *iv)
 
 NSData *MTRsaEncrypt(NSString *publicKey, NSData *data)
 {
+#if TARGET_OS_IOS
     NSMutableData *updatedData = [[NSMutableData alloc] initWithData:data];
     while (updatedData.length < 256) {
         uint8_t zero = 0;
         [updatedData replaceBytesInRange:NSMakeRange(0, 0) withBytes:&zero length:1];
     }
     return [MTRsa encryptData:updatedData publicKey:publicKey];
+#else
+    BIO *keyBio = BIO_new(BIO_s_mem());
+    const char *keyData = [publicKey UTF8String];
+    BIO_write(keyBio, keyData, (int)publicKey.length);
+    RSA *rsaKey = PEM_read_bio_RSAPublicKey(keyBio, NULL, NULL, NULL);
+    BIO_free(keyBio);
+    
+    BN_CTX *ctx = BN_CTX_new();
+    BIGNUM *a = BN_bin2bn(data.bytes, (int)data.length, NULL);
+    BIGNUM *r = BN_new();
+    
+    BN_mod_exp(r, a, rsaKey->e, rsaKey->n, ctx);
+    
+    unsigned char *res = malloc((size_t)BN_num_bytes(r));
+    int resLen = BN_bn2bin(r, res);
+    
+    BN_CTX_free(ctx);
+    BN_free(a);
+    BN_free(r);
+    
+    RSA_free(rsaKey);
+    
+    NSData *result = [[NSData alloc] initWithBytesNoCopy:res length:(NSUInteger)resLen freeWhenDone:true];
+    
+    return result;
+#endif
 }
 
 NSData *MTExp(NSData *base, NSData *exp, NSData *modulus)