/[rdesktop]/sourceforge.net/trunk/rdesktop/secure.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Diff of /sourceforge.net/trunk/rdesktop/secure.c

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revision 207 by matthewc, Thu Sep 26 14:26:46 2002 UTC revision 309 by jsorg71, Tue Feb 4 05:32:13 2003 UTC
# Line 38  extern int height; Line 38  extern int height;
38  extern int keylayout;  extern int keylayout;
39  extern BOOL encryption;  extern BOOL encryption;
40  extern BOOL licence_issued;  extern BOOL licence_issued;
41    extern int server_bpp;
42    
43  static int rc4_key_len;  static int rc4_key_len;
44  static RC4_KEY rc4_decrypt_key;  static RC4_KEY rc4_decrypt_key;
# Line 285  reverse(uint8 * p, int len) Line 286  reverse(uint8 * p, int len)
286  static void  static void
287  sec_rsa_encrypt(uint8 * out, uint8 * in, int len, uint8 * modulus, uint8 * exponent)  sec_rsa_encrypt(uint8 * out, uint8 * in, int len, uint8 * modulus, uint8 * exponent)
288  {  {
289          BN_CTX ctx;          BN_CTX *ctx;
290          BIGNUM mod, exp, x, y;          BIGNUM mod, exp, x, y;
291          uint8 inr[SEC_MODULUS_SIZE];          uint8 inr[SEC_MODULUS_SIZE];
292          int outlen;          int outlen;
# Line 295  sec_rsa_encrypt(uint8 * out, uint8 * in, Line 296  sec_rsa_encrypt(uint8 * out, uint8 * in,
296          memcpy(inr, in, len);          memcpy(inr, in, len);
297          reverse(inr, len);          reverse(inr, len);
298    
299          BN_CTX_init(&ctx);          ctx = BN_CTX_new();
300          BN_init(&mod);          BN_init(&mod);
301          BN_init(&exp);          BN_init(&exp);
302          BN_init(&x);          BN_init(&x);
# Line 304  sec_rsa_encrypt(uint8 * out, uint8 * in, Line 305  sec_rsa_encrypt(uint8 * out, uint8 * in,
305          BN_bin2bn(modulus, SEC_MODULUS_SIZE, &mod);          BN_bin2bn(modulus, SEC_MODULUS_SIZE, &mod);
306          BN_bin2bn(exponent, SEC_EXPONENT_SIZE, &exp);          BN_bin2bn(exponent, SEC_EXPONENT_SIZE, &exp);
307          BN_bin2bn(inr, len, &x);          BN_bin2bn(inr, len, &x);
308          BN_mod_exp(&y, &x, &exp, &mod, &ctx);          BN_mod_exp(&y, &x, &exp, &mod, ctx);
309          outlen = BN_bn2bin(&y, out);          outlen = BN_bn2bin(&y, out);
310          reverse(out, outlen);          reverse(out, outlen);
311          if (outlen < SEC_MODULUS_SIZE)          if (outlen < SEC_MODULUS_SIZE)
# Line 314  sec_rsa_encrypt(uint8 * out, uint8 * in, Line 315  sec_rsa_encrypt(uint8 * out, uint8 * in,
315          BN_clear_free(&x);          BN_clear_free(&x);
316          BN_free(&exp);          BN_free(&exp);
317          BN_free(&mod);          BN_free(&mod);
318          BN_CTX_free(&ctx);          BN_CTX_free(ctx);
319  }  }
320    
321  /* Initialise secure transport packet */  /* Initialise secure transport packet */
# Line 425  sec_out_mcs_data(STREAM s) Line 426  sec_out_mcs_data(STREAM s)
426          out_uint32_le(s, 12);          out_uint32_le(s, 12);
427          out_uint8s(s, 64);      /* reserved? 4 + 12 doublewords */          out_uint8s(s, 64);      /* reserved? 4 + 12 doublewords */
428    
429          out_uint16_le(s, 0xca01);          if (server_bpp == 16)
430            {
431                    out_uint16_le(s, 0xca03); /* 16 bit */
432            }
433            else
434            {
435                    out_uint16_le(s, 0xca01); /* 8 bit */
436            }
437          out_uint16(s, 0);          out_uint16(s, 0);
438    
439          /* Client encryption settings */          /* Client encryption settings */
# Line 631  sec_connect(char *server) Line 639  sec_connect(char *server)
639          sec_process_mcs_data(&mcs_data);          sec_process_mcs_data(&mcs_data);
640          if (encryption)          if (encryption)
641                  sec_establish_key();                  sec_establish_key();
642            xfree(mcs_data.data);
643          return True;          return True;
644  }  }
645    
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