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Fix compilation with openssl 1.1.0.

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This commit is contained in:
ly1217
2018-05-11 03:48:17 -07:00
parent c095959cce
commit daf61d168d
3 changed files with 87 additions and 31 deletions
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82
lib/rsa.c
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@@ -11,13 +11,54 @@
#include "rsa.h"
#include "utils.h"
/* Forward compatibility functions if libssl < 1.1.0. */
#if OPENSSL_VERSION_NUMBER < 0x10100000L
int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d)
{
/* If the fields n and e in r are NULL, the corresponding input
* parameters MUST be non-NULL for n and e. d may be
* left NULL (in case only the public key is used).
*/
if ((r->n == NULL && n == NULL)
|| (r->e == NULL && e == NULL))
return 0;
if (n != NULL) {
BN_free(r->n);
r->n = n;
}
if (e != NULL) {
BN_free(r->e);
r->e = e;
}
if (d != NULL) {
BN_free(r->d);
r->d = d;
}
return 1;
}
void RSA_get0_key(const RSA *r,
const BIGNUM **n, const BIGNUM **e, const BIGNUM **d)
{
if (n != NULL)
*n = r->n;
if (e != NULL)
*e = r->e;
if (d != NULL)
*d = r->d;
}
#endif
RSA*
private_key_to_pub(RSA *priv)
{
RSA *pub = RSA_new();
const BIGNUM *n, *e;
pub->n = BN_dup(priv->n);
pub->e = BN_dup(priv->e);
RSA_get0_key (priv, &n, &e, NULL);
RSA_set0_key (pub, BN_dup(n), BN_dup(e), NULL);
return pub;
}
@@ -28,18 +69,21 @@ GString* public_key_to_gstring(const RSA *rsa)
GString *buf = g_string_new(NULL);
unsigned char *temp;
char *coded;
const BIGNUM *n, *e;
RSA_get0_key (rsa, &n, &e, NULL);
gsize len = BN_num_bytes(n);
gsize len = BN_num_bytes(rsa->n);
temp = malloc(len);
BN_bn2bin(rsa->n, temp);
BN_bn2bin(n, temp);
coded = g_base64_encode(temp, len);
g_string_append (buf, coded);
g_string_append_c (buf, ' ');
g_free(coded);
len = BN_num_bytes(rsa->e);
len = BN_num_bytes(e);
temp = realloc(temp, len);
BN_bn2bin(rsa->e, temp);
BN_bn2bin(e, temp);
coded = g_base64_encode(temp, len);
g_string_append (buf, coded);
g_free(coded);
@@ -54,18 +98,20 @@ public_key_append_to_gstring(const RSA *rsa, GString *buf)
{
unsigned char *temp;
char *coded;
const BIGNUM *n, *e;
gsize len = BN_num_bytes(rsa->n);
RSA_get0_key (rsa, &n, &e, NULL);
gsize len = BN_num_bytes(n);
temp = malloc(len);
BN_bn2bin(rsa->n, temp);
BN_bn2bin(n, temp);
coded = g_base64_encode(temp, len);
g_string_append (buf, coded);
g_string_append_c (buf, ' ');
g_free(coded);
len = BN_num_bytes(rsa->e);
len = BN_num_bytes(e);
temp = realloc(temp, len);
BN_bn2bin(rsa->e, temp);
BN_bn2bin(e, temp);
coded = g_base64_encode(temp, len);
g_string_append (buf, coded);
g_free(coded);
@@ -78,6 +124,8 @@ RSA* public_key_from_string(char *str)
char *p;
unsigned char *num;
gsize len;
BIGNUM *n = NULL, *e = NULL;
if (!str)
return NULL;
@@ -88,22 +136,28 @@ RSA* public_key_from_string(char *str)
RSA *key = RSA_new();
num = g_base64_decode(str, &len);
key->n = BN_bin2bn(num, len, NULL);
if (!key->n)
n = BN_bin2bn(num, len, NULL);
if (!n)
goto err;
g_free(num);
num = g_base64_decode(p+1, &len);
key->e = BN_bin2bn(num, len, NULL);
if (!key->e)
e = BN_bin2bn(num, len, NULL);
if (!e)
goto err;
g_free(num);
RSA_set0_key (key, n, e, NULL);
*p = ' ';
return key;
err:
*p = ' ';
RSA_free (key);
if (n)
BN_free (n);
if (e)
BN_free (e);
g_free(num);
return NULL;
}