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added keygen function

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This commit is contained in:
jsorg71 2007-06-16 04:51:19 +00:00
parent 31fca99db7
commit 6ecbf36e7e
2 changed files with 68 additions and 2 deletions
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67
common/ssl_calls.c
View File

@ -25,6 +25,7 @@
#include <openssl/md5.h>
#include <openssl/sha.h>
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include "os_calls.h"
#include "arch.h"
@ -36,7 +37,7 @@
void* APP_CC
ssl_rc4_info_create(void)
{
return g_malloc(sizeof(RC4_KEY), 1);;
return g_malloc(sizeof(RC4_KEY), 1);
}
/*****************************************************************************/
@ -157,7 +158,7 @@ ssl_reverse_it(char* p, int len)
/*****************************************************************************/
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)
char* mod, int mod_len, char* exp, int exp_len)
{
BN_CTX* ctx;
BIGNUM lmod;
@ -210,3 +211,65 @@ ssl_mod_exp(char* out, int out_len, char* in, int in_len,
g_free(l_exp);
return rv;
}
/*****************************************************************************/
/* returns error
generates a new rsa key
exp is passed in and mod and pri are passed out */
int APP_CC
ssl_gen_key_xrdp1(int key_size_in_bits, char* exp, int exp_len,
char* mod, int mod_len, char* pri, int pri_len)
{
BIGNUM* my_e;
RSA* my_key;
char* lexp;
char* lmod;
char* lpri;
int error;
int len;
if ((exp_len != 4) || (mod_len != 64) || (pri_len != 64))
{
return 1;
}
lexp = (char*)g_malloc(exp_len, 0);
lmod = (char*)g_malloc(mod_len, 0);
lpri = (char*)g_malloc(pri_len, 0);
g_memcpy(lexp, exp, exp_len);
ssl_reverse_it(lexp, exp_len);
my_e = BN_new();
BN_bin2bn((unsigned char*)lexp, exp_len, my_e);
my_key = RSA_new();
error = RSA_generate_key_ex(my_key, key_size_in_bits, my_e, 0) == 0;
if (error == 0)
{
len = BN_num_bytes(my_key->n);
error = len != mod_len;
}
if (error == 0)
{
BN_bn2bin(my_key->n, (unsigned char*)lmod);
ssl_reverse_it(lmod, mod_len);
}
if (error == 0)
{
len = BN_num_bytes(my_key->d);
error = len != pri_len;
}
if (error == 0)
{
BN_bn2bin(my_key->d, (unsigned char*)lpri);
ssl_reverse_it(lpri, pri_len);
}
if (error == 0)
{
g_memcpy(mod, lmod, mod_len);
g_memcpy(pri, lpri, pri_len);
}
BN_free(my_e);
RSA_free(my_key);
g_free(lexp);
g_free(lmod);
g_free(lpri);
return error;
}

3
common/ssl_calls.h
View File

@ -54,5 +54,8 @@ ssl_md5_complete(void* md5_info, char* data);
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);
int APP_CC
ssl_gen_key_xrdp1(int key_size_in_bits, char* exp, int exp_len,
char* mod, int mod_len, char* pri, int pri_len);
#endif