6 files changed, 54 insertions, 1 deletions

diff --git a/cryptography/hazmat/backends/openssl/asn1.py b/cryptography/hazmat/backends/openssl/asn1.py
index a186d592..ec25c225 100644
--- a/cryptography/hazmat/backends/openssl/asn1.py
+++ b/cryptography/hazmat/backends/openssl/asn1.py
@@ -118,6 +118,7 @@ int ASN1_INTEGER_cmp(ASN1_INTEGER *, ASN1_INTEGER *);
 long ASN1_INTEGER_get(ASN1_INTEGER *);
 
 BIGNUM *ASN1_INTEGER_to_BN(ASN1_INTEGER *, BIGNUM *);
+ASN1_INTEGER *BN_to_ASN1_INTEGER(const BIGNUM *bn, ASN1_INTEGER *ai);
 """
 
 CUSTOMIZATIONS = """
diff --git a/cryptography/hazmat/backends/openssl/backend.py b/cryptography/hazmat/backends/openssl/backend.py
index 7b67fb0b..6231aadb 100644
--- a/cryptography/hazmat/backends/openssl/backend.py
+++ b/cryptography/hazmat/backends/openssl/backend.py
@@ -85,6 +85,7 @@ class Backend(object):
         "evp",
         "hmac",
         "nid",
+        "objects",
         "opensslv",
         "pem",
         "pkcs7",
diff --git a/cryptography/hazmat/backends/openssl/evp.py b/cryptography/hazmat/backends/openssl/evp.py
index 0662b1ef..d2297a0e 100644
--- a/cryptography/hazmat/backends/openssl/evp.py
+++ b/cryptography/hazmat/backends/openssl/evp.py
@@ -24,7 +24,9 @@ typedef struct {
     ...;
 } EVP_CIPHER_CTX;
 typedef ... EVP_MD;
-typedef struct env_md_ctx_st EVP_MD_CTX;
+typedef struct env_md_ctx_st {
+    ...;
+} EVP_MD_CTX;
 
 typedef struct evp_pkey_st {
     int type;
@@ -32,6 +34,7 @@ typedef struct evp_pkey_st {
 } EVP_PKEY;
 static const int EVP_PKEY_RSA;
 static const int EVP_PKEY_DSA;
+static const int EVP_MAX_MD_SIZE;
 static const int EVP_CTRL_GCM_SET_IVLEN;
 static const int EVP_CTRL_GCM_GET_TAG;
 static const int EVP_CTRL_GCM_SET_TAG;
@@ -92,6 +95,8 @@ int EVP_VerifyInit(EVP_MD_CTX *, const EVP_MD *);
 int EVP_VerifyUpdate(EVP_MD_CTX *, const void *, size_t);
 int EVP_VerifyFinal(EVP_MD_CTX *, const unsigned char *, unsigned int,
                     EVP_PKEY *);
+
+const EVP_MD *EVP_md5(void);
 """
 
 MACROS = """
diff --git a/cryptography/hazmat/backends/openssl/nid.py b/cryptography/hazmat/backends/openssl/nid.py
index 111f82f9..40aed19f 100644
--- a/cryptography/hazmat/backends/openssl/nid.py
+++ b/cryptography/hazmat/backends/openssl/nid.py
@@ -37,6 +37,7 @@ static const int NID_ecdsa_with_SHA384;
 static const int NID_ecdsa_with_SHA512;
 static const int NID_crl_reason;
 static const int NID_pbe_WithSHA1And3_Key_TripleDES_CBC;
+static const int NID_subject_alt_name;
 """
 
 FUNCTIONS = """
diff --git a/cryptography/hazmat/backends/openssl/objects.py b/cryptography/hazmat/backends/openssl/objects.py
new file mode 100644
index 00000000..b3a2c2c9
--- /dev/null
+++ b/cryptography/hazmat/backends/openssl/objects.py
@@ -0,0 +1,43 @@
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+INCLUDES = """
+#include <openssl/objects.h>
+"""
+
+TYPES = """
+"""
+
+FUNCTIONS = """
+ASN1_OBJECT * OBJ_nid2obj(int n);
+const char *  OBJ_nid2ln(int n);
+const char *  OBJ_nid2sn(int n);
+int OBJ_obj2nid(const ASN1_OBJECT *o);
+int OBJ_ln2nid(const char *ln);
+int OBJ_sn2nid(const char *sn);
+int OBJ_txt2nid(const char *s);
+ASN1_OBJECT * OBJ_txt2obj(const char *s, int no_name);
+int OBJ_obj2txt(char *buf, int buf_len, const ASN1_OBJECT *a, int no_name);
+int OBJ_cmp(const ASN1_OBJECT *a,const ASN1_OBJECT *b);
+ASN1_OBJECT * OBJ_dup(const ASN1_OBJECT *o);
+int OBJ_create(const char *oid,const char *sn,const char *ln);
+void OBJ_cleanup(void);
+"""
+
+MACROS = """
+"""
+
+CUSTOMIZATIONS = """
+"""
+
+CONDITIONAL_NAMES = {}
diff --git a/cryptography/hazmat/backends/openssl/rsa.py b/cryptography/hazmat/backends/openssl/rsa.py
index e3a24d0f..f9d9cb59 100644
--- a/cryptography/hazmat/backends/openssl/rsa.py
+++ b/cryptography/hazmat/backends/openssl/rsa.py
@@ -33,6 +33,7 @@ static const int RSA_SSLV23_PADDING;
 static const int RSA_NO_PADDING;
 static const int RSA_PKCS1_OAEP_PADDING;
 static const int RSA_X931_PADDING;
+static const int RSA_F4;
 """
 
 FUNCTIONS = """
@@ -50,6 +51,7 @@ int RSA_public_decrypt(int, const unsigned char *, unsigned char *,
                        RSA *, int);
 int RSA_private_decrypt(int, const unsigned char *, unsigned char *,
                         RSA *, int);
+int RSA_print(BIO *bp, const RSA *r,int offset);
 """
 
 MACROS = """