Merge branch 'mgm_impl' of https://github.com/gost-engine/engine into mgm_impl

[openssl-gost/engine.git] / gost_keyexpimp.c

diff --git a/gost_keyexpimp.c b/gost_keyexpimp.c
index caa6171d1fbb36dccf2bfb3efca90535e97e7bad..6df1b2a6168246b74f0fd26a1bb1522bd8a50d76 100644 (file)
--- a/gost_keyexpimp.c
+++ b/gost_keyexpimp.c
@@ -6,6 +6,7 @@
 #include "gost_lcl.h"
 #include "e_gost_err.h"
 
+int omac_imit_ctrl(EVP_MD_CTX *ctx, int type, int arg, void *ptr);
 /*
  * Function expects that out is a preallocated buffer of length
  * defined as sum of shared_len and mac length defined by mac_nid
@@ -44,8 +45,8 @@ int gost_kexp15(const unsigned char *shared_key, const int shared_len,
     }
 
     if (EVP_DigestInit_ex(mac, EVP_get_digestbynid(mac_nid), NULL) <= 0
-        || EVP_MD_CTX_ctrl(mac, EVP_MD_CTRL_SET_KEY, 32, mac_key) <= 0
-        || EVP_MD_CTX_ctrl(mac, EVP_MD_CTRL_MAC_LEN, mac_len, NULL) <= 0
+        || omac_imit_ctrl(mac, EVP_MD_CTRL_SET_KEY, 32, mac_key) <= 0
+        || omac_imit_ctrl(mac, EVP_MD_CTRL_MAC_LEN, mac_len, NULL) <= 0
         || EVP_DigestUpdate(mac, iv, ivlen) <= 0
         || EVP_DigestUpdate(mac, shared_key, shared_len) <= 0
         /* As we set MAC length directly, we should not allow overwriting it */
@@ -84,7 +85,7 @@ int gost_kexp15(const unsigned char *shared_key, const int shared_len,
 
 /*
  * Function expects that shared_key is a preallocated buffer
- * with length defined as expkeylen - mac_len defined by mac_nid
+ * with length defined as expkeylen + mac_len defined by mac_nid
  * */
 int gost_kimp15(const unsigned char *expkey, const size_t expkeylen,
                 int cipher_nid, const unsigned char *cipher_key,
@@ -137,8 +138,8 @@ int gost_kimp15(const unsigned char *expkey, const size_t expkeylen,
     }
 
     if (EVP_DigestInit_ex(mac, EVP_get_digestbynid(mac_nid), NULL) <= 0
-        || EVP_MD_CTX_ctrl(mac, EVP_MD_CTRL_SET_KEY, 32, mac_key) <= 0
-        || EVP_MD_CTX_ctrl(mac, EVP_MD_CTRL_MAC_LEN, mac_len, NULL) <= 0
+        || omac_imit_ctrl(mac, EVP_MD_CTRL_SET_KEY, 32, mac_key) <= 0
+        || omac_imit_ctrl(mac, EVP_MD_CTRL_MAC_LEN, mac_len, NULL) <= 0
         || EVP_DigestUpdate(mac, iv, ivlen) <= 0
         || EVP_DigestUpdate(mac, out, shared_len) <= 0
         /* As we set MAC length directly, we should not allow overwriting it */