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keygen: add 2048 bit key option

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ulab-next-nosound
Jay Sorg 10 years ago
parent 09de814ff0
commit 293c404a12
1 changed files with 230 additions and 128 deletions
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358
keygen/keygen.c
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@ -36,19 +36,20 @@
/* default to 512 bit key size, can set changed, set */
static int g_key_size_bits = 512;
static int g_key_size_bytes = 64;
static tui8 g_exponent[4] =
{
0x01, 0x00, 0x01, 0x00
};
/* 4 bytes public exponent */
static tui8 g_ppk_e[4] =
{
0x5B, 0x7B, 0x88, 0xC0
};
static tui8 g_ppk_n[72] =
/* 64 byte modulus */
static tui8 g_ppk_n[72] = /* 64 bytes + 8 bytes pad */
{
0x3D, 0x3A, 0x5E, 0xBD, 0x72, 0x43, 0x3E, 0xC9,
0x4D, 0xBB, 0xC1, 0x1E, 0x4A, 0xBA, 0x5F, 0xCB,
@ -61,7 +62,8 @@ static tui8 g_ppk_n[72] =
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
static tui8 g_ppk_d[108] =
/* 64 bytes private exponent */
static tui8 g_ppk_d[108] = /* 64 bytes + 44 bytes pad */
{
0x87, 0xA7, 0x19, 0x32, 0xDA, 0x11, 0x87, 0x55,
0x58, 0x00, 0x16, 0x16, 0x25, 0x65, 0x68, 0xF8,
@ -79,40 +81,115 @@ static tui8 g_ppk_d[108] =
0x00, 0x00, 0x00, 0x00
};
static tui8 g_testkey[176] =
/* 512 bit proprietary certificate
dwVersion 0 4 bytes always 0x00000001
dwSigAlgId 4 4 bytes always 0x00000001
dwKeyAlgId 8 4 bytes always 0x00000001
wPublicKeyBlobType 12 2 bytes always 0x0006
wPublicKeyBlobLen 14 2 bytes 0x005C 92 bytes
magic 16 4 bytes always 0x31415352
keylen 20 4 bytes 0x0048 72 bytes
bitlen 24 4 bytes 0x0200 512 bits
datalen 28 4 bytes 0x003F 63 bytes
pubExp 32 4 bytes 0x00010001
modulus 36 72 bytes
wSignatureBlobType 108 2 bytes always 0x0008
wSignatureBlobLen 110 2 bytes 0x0048 72 bytes
SignatureBlob 112 72 bytes */
static tui8 g_testkey512[184] = /* 512 bit test key */
{
0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, /* 0 */
0x01, 0x00, 0x00, 0x00, 0x06, 0x00, 0x5c, 0x00,
0x52, 0x53, 0x41, 0x31, 0x48, 0x00, 0x00, 0x00,
0x00, 0x02, 0x00, 0x00, 0x3f, 0x00, 0x00, 0x00,
0x01, 0x00, 0x01, 0x00, 0x79, 0x6f, 0xb4, 0xdf,
0x01, 0x00, 0x01, 0x00, 0x79, 0x6f, 0xb4, 0xdf, /* 32 */
0xa6, 0x95, 0xb9, 0xa9, 0x61, 0xe3, 0xc4, 0x5e,
0xff, 0x6b, 0xd8, 0x81, 0x8a, 0x12, 0x4a, 0x93,
0x42, 0x97, 0x18, 0x93, 0xac, 0xd1, 0x3a, 0x38,
0x3c, 0x68, 0x50, 0x19, 0x31, 0xb6, 0x84, 0x51,
0x3c, 0x68, 0x50, 0x19, 0x31, 0xb6, 0x84, 0x51, /* 64 */
0x79, 0xfb, 0x1c, 0xe7, 0xe3, 0x99, 0x20, 0xc7,
0x84, 0xdf, 0xd1, 0xaa, 0xb5, 0x15, 0xef, 0x47,
0x7e, 0xfc, 0x88, 0xeb, 0x29, 0xc3, 0x27, 0x5a,
0x35, 0xf8, 0xfd, 0xaa, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x08, 0x00, 0x48, 0x00,
0x35, 0xf8, 0xfd, 0xaa, 0x00, 0x00, 0x00, 0x00, /* 96 */
0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x48, 0x00,
0x32, 0x3b, 0xde, 0x6f, 0x18, 0x97, 0x1e, 0xc3,
0x6b, 0x2b, 0x2d, 0xe4, 0xfc, 0x2d, 0xa2, 0x8e,
0x32, 0x3c, 0xf3, 0x1b, 0x24, 0x90, 0x57, 0x4d,
0x32, 0x3c, 0xf3, 0x1b, 0x24, 0x90, 0x57, 0x4d, /* 128 */
0x8e, 0xe4, 0x69, 0xfc, 0x16, 0x8d, 0x41, 0x92,
0x78, 0xc7, 0x9c, 0xb4, 0x26, 0xff, 0xe8, 0x3e,
0xa1, 0x8a, 0xf5, 0x57, 0xc0, 0x7f, 0x3e, 0x21,
0x17, 0x32, 0x30, 0x6f, 0x79, 0xe1, 0x36, 0xcd,
0xb6, 0x8e, 0xbe, 0x57, 0x57, 0xd2, 0xa9, 0x36
0x17, 0x32, 0x30, 0x6f, 0x79, 0xe1, 0x36, 0xcd, /* 160 */
0xb6, 0x8e, 0xbe, 0x57, 0x57, 0xd2, 0xa9, 0x36,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
/* this is the installed signature */
char inst_pub_sig[] = "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";
/* 2048 bit proprietary certificate
dwVersion 0 4 bytes always 0x00000001
dwSigAlgId 4 4 bytes always 0x00000001
dwKeyAlgId 8 4 bytes always 0x00000001
wPublicKeyBlobType 12 2 bytes always 0x0006
wPublicKeyBlobLen 14 2 bytes 0x011C 284 bytes
magic 16 4 bytes always 0x31415352
keylen 20 4 bytes 0x0108 264 bytes
bitlen 24 4 bytes 0x0800 2048 bits
datalen 28 4 bytes 0x00FF 255 bytes
pubExp 32 4 bytes 0x00010001
modulus 36 264 bytes
wSignatureBlobType 300 2 bytes always 0x0008
wSignatureBlobLen 302 2 bytes 0x0048 72 bytes
SignatureBlob 304 72 bytes */
static tui8 g_testkey2048[376] = /* 2048 bit test key */
{
0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, /* 0 */
0x01, 0x00, 0x00, 0x00, 0x06, 0x00, 0x1c, 0x01,
0x52, 0x53, 0x41, 0x31, 0x08, 0x01, 0x00, 0x00,
0x00, 0x08, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00,
0x01, 0x00, 0x01, 0x00, 0x13, 0x77, 0x6d, 0xd8, /* 32 */
0x7b, 0x6e, 0x6f, 0xb4, 0x27, 0x6d, 0x70, 0x3a,
0x97, 0x5f, 0xcb, 0x50, 0x9b, 0x13, 0x6b, 0xc7,
0xba, 0xdf, 0x73, 0x54, 0x17, 0x35, 0xf0, 0x09,
0x9e, 0x9d, 0x0b, 0x6a, 0x2c, 0x9f, 0xd1, 0x0c, /* 64 */
0xc6, 0x47, 0x83, 0xde, 0xca, 0x90, 0x20, 0xac,
0x70, 0x63, 0x9b, 0xb7, 0x49, 0x07, 0x0b, 0xf5,
0xf2, 0x38, 0x2a, 0x40, 0xff, 0xf1, 0xba, 0x97,
0x79, 0x3e, 0xd4, 0xd1, 0xf3, 0x41, 0x0f, 0x91, /* 96 */
0xfe, 0x1a, 0x86, 0xf4, 0x1b, 0xef, 0xcc, 0x29,
0xa3, 0x35, 0x6f, 0x60, 0xfa, 0x98, 0x53, 0x51,
0x80, 0x57, 0x15, 0x2f, 0xe1, 0x8b, 0xd7, 0x86,
0x15, 0x2d, 0xb5, 0xec, 0x7a, 0xdd, 0xc5, 0x1d, /* 128 */
0x1b, 0x88, 0x53, 0x67, 0x86, 0xe1, 0x6e, 0xcd,
0x4e, 0x2e, 0xfd, 0xd2, 0x49, 0x04, 0xfb, 0x1d,
0x95, 0xf0, 0xe9, 0x7f, 0x97, 0xa3, 0x1b, 0xb2,
0x92, 0x2e, 0x62, 0x2a, 0x96, 0xd4, 0xea, 0x18, /* 160 */
0x8e, 0x99, 0x41, 0xea, 0x83, 0xb5, 0xf1, 0x0e,
0xea, 0x53, 0x70, 0x99, 0xd7, 0x9e, 0x0c, 0x65,
0x2b, 0xf4, 0xdc, 0x0e, 0xe7, 0x9e, 0xce, 0x04,
0x25, 0x01, 0x88, 0xc4, 0xc1, 0xd2, 0xa4, 0x18, /* 192 */
0xc2, 0x8a, 0x52, 0x0f, 0x01, 0xb2, 0x71, 0x30,
0x44, 0x3f, 0x5b, 0x11, 0x2e, 0xe7, 0x53, 0xa0,
0xc8, 0x1f, 0x77, 0xaf, 0xb5, 0xbb, 0xaf, 0x12,
0xe8, 0x19, 0x0c, 0xf6, 0x1f, 0xa8, 0x3e, 0x11, /* 224 */
0x34, 0xe4, 0xac, 0x1c, 0x1c, 0x00, 0xbb, 0xb9,
0x2f, 0xbb, 0x81, 0x76, 0x4e, 0x46, 0xda, 0x73,
0x00, 0x82, 0x71, 0xa4, 0x62, 0xc3, 0xd4, 0x3f,
0xda, 0x34, 0x54, 0x27, 0xe3, 0xd0, 0x3a, 0x73, /* 256 */
0x2f, 0x99, 0xc4, 0x91, 0x56, 0x12, 0x98, 0xa8,
0x3b, 0x8d, 0x61, 0x83, 0x62, 0xb7, 0x20, 0x61,
0x4d, 0xc9, 0x41, 0xd1, 0x40, 0x02, 0x11, 0x4b,
0x63, 0x46, 0xc7, 0xc1, 0x00, 0x00, 0x00, 0x00, /* 288 */
0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x48, 0x00,
0x00, 0x50, 0xb7, 0x75, 0xf3, 0x77, 0x99, 0xb2,
0xd3, 0xdd, 0xcd, 0x83, 0x6e, 0xdb, 0x0a, 0x29,
0x88, 0x05, 0xb5, 0x8a, 0x49, 0xd5, 0xa8, 0x5a, /* 320 */
0xc3, 0xb7, 0x18, 0xc2, 0x3c, 0x1e, 0xde, 0xd3,
0x8f, 0xdd, 0x21, 0x27, 0x84, 0xa0, 0xc8, 0x8d,
0x65, 0xce, 0x5d, 0x3d, 0x46, 0x65, 0x88, 0xfc,
0x35, 0x0a, 0x04, 0xa0, 0xda, 0xc1, 0xab, 0xbf, /* 352 */
0xcd, 0xf1, 0x7e, 0x71, 0x7b, 0xf8, 0x4a, 0x78,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
/*****************************************************************************/
static int APP_CC
@ -120,7 +197,7 @@ out_params(void)
{
g_writeln("");
g_writeln("xrdp rsa key gen utility examples");
g_writeln(" xrdp-keygen xrdp ['path and file name' | auto]");
g_writeln(" xrdp-keygen xrdp ['path and file name' | auto] [512 or 2048]");
g_writeln(" xrdp-keygen test");
g_writeln("");
return 0;
@ -136,37 +213,73 @@ sign_key(char *e_data, int e_len, char *n_data, int n_len,
char *md5_final;
void *md5;
if ((e_len != 4) || (n_len != 64) || (sign_len != 64))
if ((e_len != 4) || ((n_len != 64) && (n_len != 256)) || (sign_len != 64))
{
return 1;
}
key = (char *)g_malloc(176, 0);
md5_final = (char *)g_malloc(64, 0);
md5 = ssl_md5_info_create();
/* copy the test key */
g_memcpy(key, g_testkey, 176);
/* replace e and n */
g_memcpy(key + 32, e_data, 4);
g_memcpy(key + 36, n_data, 64);
ssl_md5_clear(md5);
/* the first 108 bytes */
ssl_md5_transform(md5, key, 108);
/* set the whole thing with 0xff */
g_memset(md5_final, 0xff, 64);
/* digest 16 bytes */
ssl_md5_complete(md5, md5_final);
/* set non 0xff array items */
md5_final[16] = 0;
md5_final[62] = 1;
md5_final[63] = 0;
/* encrypt */
ssl_mod_exp(sign_data, 64, md5_final, 64, (char *)g_ppk_n, 64,
(char *)g_ppk_d, 64);
/* cleanup */
ssl_md5_info_delete(md5);
g_free(key);
g_free(md5_final);
if (n_len == 64)
{
key = (char *)g_malloc(184, 0);
md5_final = (char *)g_malloc(64, 0);
md5 = ssl_md5_info_create();
/* copy the test key */
g_memcpy(key, g_testkey512, 184);
/* replace e and n */
g_memcpy(key + 32, e_data, e_len);
g_memcpy(key + 36, n_data, n_len);
ssl_md5_clear(md5);
/* the first 108 bytes */
ssl_md5_transform(md5, key, 108);
/* set the whole thing with 0xff */
g_memset(md5_final, 0xff, 64);
/* digest 16 bytes */
ssl_md5_complete(md5, md5_final);
/* set non 0xff array items */
md5_final[16] = 0;
md5_final[62] = 1;
md5_final[63] = 0;
/* encrypt */
ssl_mod_exp(sign_data, sign_len, md5_final, 64, (char *)g_ppk_n, 64,
(char *)g_ppk_d, 64);
/* cleanup */
ssl_md5_info_delete(md5);
g_free(key);
g_free(md5_final);
}
else if (n_len == 256)
{
key = (char *)g_malloc(376, 0);
md5_final = (char *)g_malloc(64, 0);
md5 = ssl_md5_info_create();
/* copy the test key */
g_memcpy(key, g_testkey2048, 376);
/* replace e and n */
g_memcpy(key + 32, e_data, e_len);
g_memcpy(key + 36, n_data, n_len);
ssl_md5_clear(md5);
/* the first 300 bytes */
ssl_md5_transform(md5, key, 300);
/* set the whole thing with 0xff */
g_memset(md5_final, 0xff, 64);
/* digest 16 bytes */
ssl_md5_complete(md5, md5_final);
/* set non 0xff array items */
md5_final[16] = 0;
md5_final[62] = 1;
md5_final[63] = 0;
/* encrypt */
ssl_mod_exp(sign_data, sign_len, md5_final, 64, (char *)g_ppk_n, 64,
(char *)g_ppk_d, 64);
/* cleanup */
ssl_md5_info_delete(md5);
g_free(key);
g_free(md5_final);
}
else
{
g_writeln("problem");
}
return 0;
}
@ -292,12 +405,12 @@ key_gen(const char *path_and_file_name)
int error;
e_data = (char *)g_exponent;
n_data = (char *)g_malloc(64, 0);
d_data = (char *)g_malloc(64, 0);
n_data = (char *)g_malloc(256, 0);
d_data = (char *)g_malloc(256, 0);
sign_data = (char *)g_malloc(64, 0);
e_len = 4;
n_len = 64;
d_len = 64;
n_len = g_key_size_bits / 8;
d_len = n_len;
sign_len = 64;
error = 0;
g_writeln("");
@ -345,84 +458,58 @@ key_gen(const char *path_and_file_name)
}
/*****************************************************************************/
/* returns boolean */
static int APP_CC
key_gen_run_it(void)
key_gen_auto(void)
{
int fd;
int index;
int rv;
struct list *names;
struct list *values;
char *name;
char *value;
if (!g_file_exist("/etc/xrdp/rsakeys.ini"))
{
return 1;
}
if (g_file_get_size("/etc/xrdp/rsakeys.ini") < 10)
{
return 1;
}
fd = g_file_open("/etc/xrdp/rsakeys.ini");
if (fd < 0)
{
return 1;
}
rv = 0;
names = list_create();
names->auto_free = 1;
values = list_create();
values->auto_free = 1;
if (file_read_section(fd, "keys", names, values) == 0)
{
for (index = 0; index < names->count; index++)
{
name = (char *)list_get_item(names, index);
value = (char *)list_get_item(values, index);
if (g_strcasecmp(name, "pub_sig") == 0)
{
if (g_strcasecmp(value, inst_pub_sig) == 0)
{
rv = 1;
}
}
}
}
else
{
g_writeln("error reading keys section of rsakeys.ini");
}
list_delete(names);
list_delete(values);
g_file_close(fd);
return rv;
return key_gen("/etc/xrdp/rsakeys.ini");
}
/*****************************************************************************/
static int APP_CC
key_gen_auto(void)
key_test512(void)
{
if (key_gen_run_it())
{
return key_gen("/etc/xrdp/rsakeys.ini");
}
char *md5_final;
char *sig;
void *md5;
g_writeln("xrdp-keygen does not need to run");
md5_final = (char *)g_malloc(64, 0);
sig = (char *)g_malloc(64, 0);
md5 = ssl_md5_info_create();
g_writeln("original key is:");
g_hexdump((char *)g_testkey512, 184);
g_writeln("original exponent is:");
g_hexdump((char *)g_testkey512 + 32, 4);
g_writeln("original modulus is:");
g_hexdump((char *)g_testkey512 + 36, 64);
g_writeln("original signature is:");
g_hexdump((char *)g_testkey512 + 112, 64);
ssl_md5_clear(md5);
ssl_md5_transform(md5, (char *)g_testkey512, 108);
g_memset(md5_final, 0xff, 64);
ssl_md5_complete(md5, md5_final);
g_writeln("md5 hash of first 108 bytes of this key is:");
g_hexdump(md5_final, 16);
md5_final[16] = 0;
md5_final[62] = 1;
md5_final[63] = 0;
ssl_mod_exp(sig, 64, md5_final, 64, (char *)g_ppk_n, 64, (char *)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, (char *)g_testkey512 + 112, 64, (char *)g_ppk_n, 64,
(char *)g_ppk_e, 4);
g_writeln("decrypted hash of first 108 bytes of this key is:");
g_hexdump(md5_final, 64);
ssl_md5_info_delete(md5);
g_free(md5_final);
g_free(sig);
return 0;
}
/*****************************************************************************/
static int APP_CC
key_test(void)
key_test2048(void)
{
char *md5_final;
char *sig;
@ -432,28 +519,28 @@ key_test(void)
sig = (char *)g_malloc(64, 0);
md5 = ssl_md5_info_create();
g_writeln("original key is:");
g_hexdump((char *)g_testkey, 176);
g_hexdump((char *)g_testkey2048, 376);
g_writeln("original exponent is:");
g_hexdump((char *)g_testkey + 32, 4);
g_hexdump((char *)g_testkey2048 + 32, 4);
g_writeln("original modulus is:");
g_hexdump((char *)g_testkey + 36, 64);
g_hexdump((char *)g_testkey2048 + 36, 256);
g_writeln("original signature is:");
g_hexdump((char *)g_testkey + 112, 64);
g_hexdump((char *)g_testkey2048 + 304, 64);
ssl_md5_clear(md5);
ssl_md5_transform(md5, (char *)g_testkey, 108);
ssl_md5_transform(md5, (char *)g_testkey2048, 300);
g_memset(md5_final, 0xff, 64);
ssl_md5_complete(md5, md5_final);
g_writeln("md5 hash of first 108 bytes of this key is:");
g_writeln("md5 hash of first 300 bytes of this key is:");
g_hexdump(md5_final, 16);
md5_final[16] = 0;
md5_final[62] = 1;
md5_final[63] = 0;
ssl_mod_exp(sig, 64, md5_final, 64, (char *)g_ppk_n, 64, (char *)g_ppk_d, 64);
g_writeln("produced signature(this should match original \
signature above) is:");
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, (char *)g_testkey + 112, 64, (char *)g_ppk_n, 64,
ssl_mod_exp(md5_final, 64, (char *)g_testkey2048 + 304, 64, (char *)g_ppk_n, 64,
(char *)g_ppk_e, 4);
g_writeln("decrypted hash of first 108 bytes of this key is:");
g_hexdump(md5_final, 64);
@ -473,6 +560,15 @@ main(int argc, char **argv)
{
if (argc > 2)
{
if (argc > 3)
{
g_key_size_bits = g_atoi(argv[3]);
if ((g_key_size_bits != 512) && (g_key_size_bits != 2048))
{
out_params();
return 0;
}
}
if (g_strcasecmp(argv[2], "auto") == 0)
{
if (g_getuid() != 0)
@ -495,7 +591,13 @@ main(int argc, char **argv)
}
else if (g_strcasecmp(argv[1], "test") == 0)
{
return key_test();
g_writeln("");
g_writeln("testing 512 bit key");
key_test512();
g_writeln("");
g_writeln("testing 2048 bit key");
key_test2048();
return 0;
}
}

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