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authorRene Mayrhofer <rene@mayrhofer.eu.org>2010-02-23 10:34:14 +0000
committerRene Mayrhofer <rene@mayrhofer.eu.org>2010-02-23 10:34:14 +0000
commited7d79f96177044949744da10f4431c1d6242241 (patch)
tree3aabaa55ed3b5291daef891cfee9befb5235e2b8 /src/libstrongswan/plugins/openssl/openssl_diffie_hellman.c
parent7410d3c6d6a9a1cd7aa55083c938946af6ff9498 (diff)
downloadvyos-strongswan-ed7d79f96177044949744da10f4431c1d6242241.tar.gz
vyos-strongswan-ed7d79f96177044949744da10f4431c1d6242241.zip
[svn-upgrade] Integrating new upstream version, strongswan (4.3.6)
Diffstat (limited to 'src/libstrongswan/plugins/openssl/openssl_diffie_hellman.c')
-rw-r--r--src/libstrongswan/plugins/openssl/openssl_diffie_hellman.c46
1 files changed, 23 insertions, 23 deletions
diff --git a/src/libstrongswan/plugins/openssl/openssl_diffie_hellman.c b/src/libstrongswan/plugins/openssl/openssl_diffie_hellman.c
index fe042efdc..80a1ee878 100644
--- a/src/libstrongswan/plugins/openssl/openssl_diffie_hellman.c
+++ b/src/libstrongswan/plugins/openssl/openssl_diffie_hellman.c
@@ -22,7 +22,7 @@
typedef struct modulus_entry_t modulus_entry_t;
-/**
+/**
* Entry of the modulus list.
*/
struct modulus_entry_t {
@@ -30,20 +30,20 @@ struct modulus_entry_t {
* Group number as it is defined in file transform_substructure.h.
*/
diffie_hellman_group_t group;
-
+
/**
* Pointer to the function to get the modulus.
*/
BIGNUM *(*get_prime)(BIGNUM *bn);
-
- /*
+
+ /*
* Optimum length of exponent in bits.
- */
+ */
long opt_exponent_len;
-
- /*
+
+ /*
* Generator value.
- */
+ */
u_int16_t generator;
};
@@ -71,27 +71,27 @@ struct private_openssl_diffie_hellman_t {
* Public openssl_diffie_hellman_t interface.
*/
openssl_diffie_hellman_t public;
-
+
/**
* Diffie Hellman group number.
*/
u_int16_t group;
-
+
/**
* Diffie Hellman object
*/
DH *dh;
-
+
/**
* Other public value
*/
BIGNUM *pub_key;
-
+
/**
* Shared secret
*/
chunk_t shared_secret;
-
+
/**
* True if shared secret is computed
*/
@@ -123,7 +123,7 @@ static status_t get_shared_secret(private_openssl_diffie_hellman_t *this,
/* shared secret should requires a len according the DH group */
*secret = chunk_alloc(DH_size(this->dh));
memset(secret->ptr, 0, secret->len);
- memcpy(secret->ptr + secret->len - this->shared_secret.len,
+ memcpy(secret->ptr + secret->len - this->shared_secret.len,
this->shared_secret.ptr, this->shared_secret.len);
return SUCCESS;
@@ -137,7 +137,7 @@ static void set_other_public_value(private_openssl_diffie_hellman_t *this,
chunk_t value)
{
int len;
-
+
BN_bin2bn(value.ptr, value.len, this->pub_key);
chunk_clear(&this->shared_secret);
this->shared_secret.ptr = malloc(DH_size(this->dh));
@@ -167,10 +167,10 @@ static status_t set_modulus(private_openssl_diffie_hellman_t *this)
{
int i;
bool ansi_x9_42;
-
+
ansi_x9_42 = lib->settings->get_bool(lib->settings,
"libstrongswan.dh_exponent_ansi_x9_42", TRUE);
-
+
for (i = 0; i < (sizeof(modulus_entries) / sizeof(modulus_entry_t)); i++)
{
if (modulus_entries[i].group == this->group)
@@ -205,32 +205,32 @@ static void destroy(private_openssl_diffie_hellman_t *this)
openssl_diffie_hellman_t *openssl_diffie_hellman_create(diffie_hellman_group_t group)
{
private_openssl_diffie_hellman_t *this = malloc_thing(private_openssl_diffie_hellman_t);
-
+
this->public.dh.get_shared_secret = (status_t (*)(diffie_hellman_t *, chunk_t *)) get_shared_secret;
this->public.dh.set_other_public_value = (void (*)(diffie_hellman_t *, chunk_t )) set_other_public_value;
this->public.dh.get_my_public_value = (void (*)(diffie_hellman_t *, chunk_t *)) get_my_public_value;
this->public.dh.get_dh_group = (diffie_hellman_group_t (*)(diffie_hellman_t *)) get_dh_group;
this->public.dh.destroy = (void (*)(diffie_hellman_t *)) destroy;
-
+
this->dh = DH_new();
if (!this->dh)
{
free(this);
return NULL;
}
-
+
this->group = group;
this->computed = FALSE;
this->pub_key = BN_new();
this->shared_secret = chunk_empty;
-
+
/* find a modulus according to group */
if (set_modulus(this) != SUCCESS)
{
destroy(this);
return NULL;
}
-
+
/* generate my public and private values */
if (!DH_generate_key(this->dh))
{
@@ -238,6 +238,6 @@ openssl_diffie_hellman_t *openssl_diffie_hellman_create(diffie_hellman_group_t g
return NULL;
}
DBG2("size of DH secret exponent: %d bits", BN_num_bits(this->dh->priv_key));
-
+
return &this->public;
}