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xrdp-proprietary
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completed sign key and some cleanups

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ulab-original
jsorg71 18 years ago
parent 48f09546a7
commit 48153b6244
1 changed files with 103 additions and 114 deletions
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217
keygen/keygen.c
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@ -82,48 +82,7 @@ static char g_ppk_d[108] =
0x00, 0x00, 0x00, 0x00
};
static char g_test_e[4] =
{
0x01, 0x00, 0x01, 0x00
};
static char g_test_n[64] =
{
0x67, 0xab, 0x0e, 0x6a, 0x9f, 0xd6, 0x2b, 0xa3,
0x32, 0x2f, 0x41, 0xd1, 0xce, 0xee, 0x61, 0xc3,
0x76, 0x0b, 0x26, 0x11, 0x70, 0x48, 0x8a, 0x8d,
0x23, 0x81, 0x95, 0xa0, 0x39, 0xf7, 0x5b, 0xaa,
0x3e, 0xf1, 0xed, 0xb8, 0xc4, 0xee, 0xce, 0x5f,
0x6a, 0xf5, 0x43, 0xce, 0x5f, 0x60, 0xca, 0x6c,
0x06, 0x75, 0xae, 0xc0, 0xd6, 0xa4, 0x0c, 0x92,
0xa4, 0xc6, 0x75, 0xea, 0x64, 0xb2, 0x50, 0x5b
};
static char g_test_sign[64] =
{
0x6a, 0x41, 0xb1, 0x43, 0xcf, 0x47, 0x6f, 0xf1,
0xe6, 0xcc, 0xa1, 0x72, 0x97, 0xd9, 0xe1, 0x85,
0x15, 0xb3, 0xc2, 0x39, 0xa0, 0xa6, 0x26, 0x1a,
0xb6, 0x49, 0x01, 0xfa, 0xa6, 0xda, 0x60, 0xd7,
0x45, 0xf7, 0x2c, 0xee, 0xe4, 0x8e, 0x64, 0x2e,
0x37, 0x49, 0xf0, 0x4c, 0x94, 0x6f, 0x08, 0xf5,
0x63, 0x4c, 0x56, 0x29, 0x55, 0x5a, 0x63, 0x41,
0x2c, 0x20, 0x65, 0x95, 0x99, 0xb1, 0x15, 0x7c
};
static char g_test_d[64] =
{
0x41, 0x93, 0x05, 0xB1, 0xF4, 0x38, 0xFC, 0x47,
0x88, 0xC4, 0x7F, 0x83, 0x8C, 0xEC, 0x90, 0xDA,
0x0C, 0x8A, 0xB5, 0xAE, 0x61, 0x32, 0x72, 0xF5,
0x2B, 0xD1, 0x7B, 0x5F, 0x44, 0xC0, 0x7C, 0xBD,
0x8A, 0x35, 0xFA, 0xAE, 0x30, 0xF6, 0xC4, 0x6B,
0x55, 0xA7, 0x65, 0xEF, 0xF4, 0xB2, 0xAB, 0x18,
0x4E, 0xAA, 0xE6, 0xDC, 0x71, 0x17, 0x3B, 0x4C,
0xC2, 0x15, 0x4C, 0xF7, 0x81, 0xBB, 0xF0, 0x03
};
static char g_testa[22 * 8] =
static char g_testkey[176] =
{
0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x06, 0x00, 0x5c, 0x00,
@ -166,12 +125,71 @@ reverse(char* p, int len)
}
}
/*****************************************************************************/
static int APP_CC
ssl_mod_exp(char* out, int out_len, char* in, int in_len,
char* mod, int mod_len, char* exp, int exp_len)
{
BN_CTX* ctx;
BIGNUM lmod;
BIGNUM lexp;
BIGNUM lin;
BIGNUM lout;
int rv;
char* l_out;
char* l_in;
char* l_mod;
char* l_exp;
l_out = (char*)g_malloc(out_len, 1);
l_in = (char*)g_malloc(in_len, 1);
l_mod = (char*)g_malloc(mod_len, 1);
l_exp = (char*)g_malloc(exp_len, 1);
g_memcpy(l_in, in, in_len);
g_memcpy(l_mod, mod, mod_len);
g_memcpy(l_exp, exp, exp_len);
reverse(l_in, in_len);
reverse(l_mod, mod_len);
reverse(l_exp, exp_len);
ctx = BN_CTX_new();
BN_init(&lmod);
BN_init(&lexp);
BN_init(&lin);
BN_init(&lout);
BN_bin2bn((unsigned char*)l_mod, mod_len, &lmod);
BN_bin2bn((unsigned char*)l_exp, exp_len, &lexp);
BN_bin2bn((unsigned char*)l_in, in_len, &lin);
BN_mod_exp(&lout, &lin, &lexp, &lmod, ctx);
rv = BN_bn2bin(&lout, (unsigned char*)l_out);
if (rv <= out_len)
{
reverse(l_out, rv);
g_memcpy(out, l_out, out_len);
}
else
{
rv = 0;
}
BN_free(&lin);
BN_free(&lout);
BN_free(&lexp);
BN_free(&lmod);
BN_CTX_free(ctx);
g_free(l_out);
g_free(l_in);
g_free(l_mod);
g_free(l_exp);
return rv;
}
/*****************************************************************************/
static int APP_CC
out_params(void)
{
g_writeln("");
g_writeln("key gen utility example './keygen xrdp'");
g_writeln("key gen utility examples");
g_writeln(" './keygen xrdp'");
g_writeln(" './keygen test'");
g_writeln("");
return 0;
}
@ -181,8 +199,25 @@ static int APP_CC
sign_key(char* e_data, int e_len, char* n_data, int n_len,
char* d_data, int d_len, char* sign_data, int sign_len)
{
g_writeln("todo sign here");
g_writeln("");
char key[176];
char md5_final[64];
MD5_CTX md5;
if ((e_len != 4) || (n_len != 64) || (sign_len != 64))
{
return 1;
}
g_memcpy(key, g_testkey, 176);
g_memcpy(key + 32, e_data, 4);
g_memcpy(key + 36, n_data, 64);
MD5_Init(&md5);
MD5_Update(&md5, (unsigned char*)key, 108);
g_memset(md5_final, 0xff, 64);
MD5_Final((unsigned char*)md5_final, &md5);
md5_final[16] = 0;
md5_final[62] = 1;
md5_final[63] = 0;
ssl_mod_exp(sign_data, 64, md5_final, 64, g_ppk_n, 64, g_ppk_d, 64);
return 0;
}
@ -359,6 +394,12 @@ key_gen(void)
{
g_writeln("error %d in key_gen, sign_key", error);
}
else
{
g_writeln("signature size %d bytes", sign_len);
g_hexdump(sign_data, sign_len);
g_writeln("");
}
}
if (error == 0)
{
@ -379,90 +420,38 @@ key_gen(void)
return error;
}
/*****************************************************************************/
int APP_CC
ssl_mod_exp(char* out, int out_len, char* in, int in_len,
char* mod, int mod_len, char* exp, int exp_len)
{
BN_CTX* ctx;
BIGNUM lmod;
BIGNUM lexp;
BIGNUM lin;
BIGNUM lout;
int rv;
char* l_out;
char* l_in;
char* l_mod;
char* l_exp;
l_out = (char*)g_malloc(out_len, 1);
l_in = (char*)g_malloc(in_len, 1);
l_mod = (char*)g_malloc(mod_len, 1);
l_exp = (char*)g_malloc(exp_len, 1);
g_memcpy(l_in, in, in_len);
g_memcpy(l_mod, mod, mod_len);
g_memcpy(l_exp, exp, exp_len);
reverse(l_in, in_len);
reverse(l_mod, mod_len);
reverse(l_exp, exp_len);
ctx = BN_CTX_new();
BN_init(&lmod);
BN_init(&lexp);
BN_init(&lin);
BN_init(&lout);
BN_bin2bn((unsigned char*)l_mod, mod_len, &lmod);
BN_bin2bn((unsigned char*)l_exp, exp_len, &lexp);
BN_bin2bn((unsigned char*)l_in, in_len, &lin);
BN_mod_exp(&lout, &lin, &lexp, &lmod, ctx);
rv = BN_bn2bin(&lout, (unsigned char*)l_out);
if (rv <= out_len)
{
reverse(l_out, rv);
g_memcpy(out, l_out, out_len);
}
else
{
rv = 0;
}
BN_free(&lin);
BN_free(&lout);
BN_free(&lexp);
BN_free(&lmod);
BN_CTX_free(ctx);
g_free(l_out);
g_free(l_in);
g_free(l_mod);
g_free(l_exp);
return rv;
}
/*****************************************************************************/
static int APP_CC
key_test(void)
{
char md5_final[16];
char md5_final[64];
char sig[64];
unsigned char* p;
MD5_CTX md5;
g_writeln("original key is:");
g_hexdump(g_testa, 176);
g_hexdump(g_testkey, 176);
g_writeln("original exponent is:");
g_hexdump(g_testa + 32, 4);
g_hexdump(g_testkey + 32, 4);
g_writeln("original modulus is:");
g_hexdump(g_testa + 36, 64);
g_hexdump(g_testkey + 36, 64);
g_writeln("original signature is:");
g_hexdump(g_testa + 112, 64);
g_hexdump(g_testkey + 112, 64);
MD5_Init(&md5);
p = (unsigned char*)g_testa;
MD5_Update(&md5, p, 108);
p = (unsigned char*)md5_final;
MD5_Final(p, &md5);
MD5_Update(&md5, (unsigned char*)g_testkey, 108);
g_memset(md5_final, 0xff, 64);
MD5_Final((unsigned char*)md5_final, &md5);
g_writeln("md5 hash of first 108 bytes of this key is:");
g_hexdump(md5_final, 16);
ssl_mod_exp(sig, 64, md5_final, 16, g_ppk_n, 64, g_ppk_d, 64);
g_writeln("produced signature(fix this, it should match original signature above) is:");
md5_final[16] = 0;
md5_final[62] = 1;
md5_final[63] = 0;
ssl_mod_exp(sig, 64, md5_final, 64, g_ppk_n, 64, g_ppk_d, 64);
g_writeln("produced signature(this should match original signature above) is:");
g_hexdump(sig, 64);
g_memset(md5_final, 0, 64);
ssl_mod_exp(md5_final, 64, g_testkey + 112, 64, g_ppk_n, 64, g_ppk_e, 4);
g_writeln("decrypted hash of first 108 bytes of this key is:");
g_hexdump(md5_final, 64);
return 0;
}

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