Converted tabs to spaces to make pylint happy

[oss/ctypescrypto.git] / ctypescrypto / ec.py

diff --git a/ctypescrypto/ec.py b/ctypescrypto/ec.py
index 047aad97a1d6db7225d8f6b5c967647df364ba22..7240b39b2e114b10feab3d6c4eee4a38b4cac17f 100644 (file)
--- a/ctypescrypto/ec.py
+++ b/ctypescrypto/ec.py
@@ -8,60 +8,60 @@ from ctypescrypto import libcrypto
 __all__ = [ 'create']
 
 def create(curve,data):
-       """
-               Creates EC keypair from the just secret key and curve name
-               
-               @param curve - name of elliptic curve
-               @param num - byte array or long number representing key
-       """
-       ec=libcrypto.EC_KEY_new_by_curve_name(curve.nid)
-       if ec is None:  
-               raise PKeyError("EC_KEY_new_by_curvename")
-       group=libcrypto.EC_KEY_get0_group(ec)
-       if group is None:
-               raise PKeyError("EC_KEY_get0_group")
-       libcrypto.EC_GROUP_set_asn1_flag(group,1)
-       raw_key=libcrypto.BN_new()
-       if isinstance(data,int):
-               BN_hex2bn(byref(raw_key),hex(data))
-       else:
-               if raw_key is None:
-                       raise PKeyError("BN_new")
-               if libcrypto.BN_bin2bn(data,len(data),raw_key) is None:
-                       raise PKeyError("BN_bin2bn")
-       ctx=libcrypto.BN_CTX_new()
-       if ctx is None:
-               raise PKeyError("BN_CTX_new")
-       order=libcrypto.BN_new()
-       if order is None:
-               raise PKeyError("BN_new")
-       priv_key = libcrypto.BN_new()
-       if priv_key is None:
-               raise PKeyError("BN_new")
-       if libcrypto.EC_GROUP_get_order(group,order,ctx) <=0:
-               raise PKeyError("EC_GROUP_get_order")
-       if libcrypto.BN_nnmod(priv_key,raw_key,order,ctx) <=0:
-               raise PKeyError("BN_nnmod")
-       if libcrypto.EC_KEY_set_private_key(ec,priv_key)<=0:
-               raise PKeyError("EC_KEY_set_private_key")
-       pub_key=libcrypto.EC_POINT_new(group)
-       if pub_key is None:
-               raise PKeyError("EC_POINT_new")
-       if libcrypto.EC_POINT_mul(group,pub_key,priv_key,None,None,ctx)<=0:
-               raise PKeyError("EC_POINT_mul")
-       if libcrypto.EC_KEY_set_public_key(ec,pub_key)<=0:
-               raise PKeyError("EC_KEY_set_public_key")
-       libcrypto.BN_free(raw_key)
-       libcrypto.BN_free(order)
-       libcrypto.BN_free(priv_key)
-       libcrypto.BN_CTX_free(ctx)
-       p=libcrypto.EVP_PKEY_new()
-       if p is None:
-               raise PKeyError("EVP_PKEY_new") 
-       if libcrypto.EVP_PKEY_set1_EC_KEY(p,ec)<=0:
-               raise PKeyError("EVP_PKEY_set1_EC_KEY")
-       libcrypto.EC_KEY_free(ec)
-       return PKey(ptr=p,cansign=True)
+    """
+        Creates EC keypair from the just secret key and curve name
+        
+        @param curve - name of elliptic curve
+        @param num - byte array or long number representing key
+    """
+    ec=libcrypto.EC_KEY_new_by_curve_name(curve.nid)
+    if ec is None:  
+        raise PKeyError("EC_KEY_new_by_curvename")
+    group=libcrypto.EC_KEY_get0_group(ec)
+    if group is None:
+        raise PKeyError("EC_KEY_get0_group")
+    libcrypto.EC_GROUP_set_asn1_flag(group,1)
+    raw_key=libcrypto.BN_new()
+    if isinstance(data,int):
+        BN_hex2bn(byref(raw_key),hex(data))
+    else:
+        if raw_key is None:
+            raise PKeyError("BN_new")
+        if libcrypto.BN_bin2bn(data,len(data),raw_key) is None:
+            raise PKeyError("BN_bin2bn")
+    ctx=libcrypto.BN_CTX_new()
+    if ctx is None:
+        raise PKeyError("BN_CTX_new")
+    order=libcrypto.BN_new()
+    if order is None:
+        raise PKeyError("BN_new")
+    priv_key = libcrypto.BN_new()
+    if priv_key is None:
+        raise PKeyError("BN_new")
+    if libcrypto.EC_GROUP_get_order(group,order,ctx) <=0:
+        raise PKeyError("EC_GROUP_get_order")
+    if libcrypto.BN_nnmod(priv_key,raw_key,order,ctx) <=0:
+        raise PKeyError("BN_nnmod")
+    if libcrypto.EC_KEY_set_private_key(ec,priv_key)<=0:
+        raise PKeyError("EC_KEY_set_private_key")
+    pub_key=libcrypto.EC_POINT_new(group)
+    if pub_key is None:
+        raise PKeyError("EC_POINT_new")
+    if libcrypto.EC_POINT_mul(group,pub_key,priv_key,None,None,ctx)<=0:
+        raise PKeyError("EC_POINT_mul")
+    if libcrypto.EC_KEY_set_public_key(ec,pub_key)<=0:
+        raise PKeyError("EC_KEY_set_public_key")
+    libcrypto.BN_free(raw_key)
+    libcrypto.BN_free(order)
+    libcrypto.BN_free(priv_key)
+    libcrypto.BN_CTX_free(ctx)
+    p=libcrypto.EVP_PKEY_new()
+    if p is None:
+        raise PKeyError("EVP_PKEY_new") 
+    if libcrypto.EVP_PKEY_set1_EC_KEY(p,ec)<=0:
+        raise PKeyError("EVP_PKEY_set1_EC_KEY")
+    libcrypto.EC_KEY_free(ec)
+    return PKey(ptr=p,cansign=True)
 
 
 libcrypto.EVP_PKEY_new.restype=c_void_p