From b3c127bcba8abaaee24b78289eb628f9d002545b Mon Sep 17 00:00:00 2001
From: Tom Cocagne <devnull@localhost>
Date: Tue, 8 Feb 2011 14:13:47 -0500
Subject: Added NG_8192 and set 2048-bit prime as the default

---
 _ctsrp.py | 51 ++++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 46 insertions(+), 5 deletions(-)

(limited to '_ctsrp.py')

diff --git a/_ctsrp.py b/_ctsrp.py
index 42dbfdd..6754e83 100644
--- a/_ctsrp.py
+++ b/_ctsrp.py
@@ -31,7 +31,8 @@ SHA512 = 4
 NG_1024   = 0
 NG_2048   = 1
 NG_4096   = 2
-NG_CUSTOM = 3
+NG_8192   = 3
+NG_CUSTOM = 4
 
 _hash_map = { SHA1   : hashlib.sha1,
               SHA224 : hashlib.sha224,
@@ -79,7 +80,47 @@ E0FD108E4B82D120A92108011A723C12A787E6D788719A10BDBA5B26\
 233BA186515BE7ED1F612970CEE2D7AFB81BDD762170481CD0069127\
 D5B05AA993B4EA988D8FDDC186FFB7DC90A6C08F4DF435C934063199\
 FFFFFFFFFFFFFFFF''',
-"5")
+"5"),
+# 8192
+('''\
+FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E08\
+8A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B\
+302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9\
+A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE6\
+49286651ECE45B3DC2007CB8A163BF0598DA48361C55D39A69163FA8\
+FD24CF5F83655D23DCA3AD961C62F356208552BB9ED529077096966D\
+670C354E4ABC9804F1746C08CA18217C32905E462E36CE3BE39E772C\
+180E86039B2783A2EC07A28FB5C55DF06F4C52C9DE2BCBF695581718\
+3995497CEA956AE515D2261898FA051015728E5A8AAAC42DAD33170D\
+04507A33A85521ABDF1CBA64ECFB850458DBEF0A8AEA71575D060C7D\
+B3970F85A6E1E4C7ABF5AE8CDB0933D71E8C94E04A25619DCEE3D226\
+1AD2EE6BF12FFA06D98A0864D87602733EC86A64521F2B18177B200C\
+BBE117577A615D6C770988C0BAD946E208E24FA074E5AB3143DB5BFC\
+E0FD108E4B82D120A92108011A723C12A787E6D788719A10BDBA5B26\
+99C327186AF4E23C1A946834B6150BDA2583E9CA2AD44CE8DBBBC2DB\
+04DE8EF92E8EFC141FBECAA6287C59474E6BC05D99B2964FA090C3A2\
+233BA186515BE7ED1F612970CEE2D7AFB81BDD762170481CD0069127\
+D5B05AA993B4EA988D8FDDC186FFB7DC90A6C08F4DF435C934028492\
+36C3FAB4D27C7026C1D4DCB2602646DEC9751E763DBA37BDF8FF9406\
+AD9E530EE5DB382F413001AEB06A53ED9027D831179727B0865A8918\
+DA3EDBEBCF9B14ED44CE6CBACED4BB1BDB7F1447E6CC254B33205151\
+2BD7AF426FB8F401378CD2BF5983CA01C64B92ECF032EA15D1721D03\
+F482D7CE6E74FEF6D55E702F46980C82B5A84031900B1C9E59E7C97F\
+BEC7E8F323A97A7E36CC88BE0F1D45B7FF585AC54BD407B22B4154AA\
+CC8F6D7EBF48E1D814CC5ED20F8037E0A79715EEF29BE32806A1D58B\
+B7C5DA76F550AA3D8A1FBFF0EB19CCB1A313D55CDA56C9EC2EF29632\
+387FE8D76E3C0468043E8F663F4860EE12BF2D5B0B7474D6E694F91E\
+6DBE115974A3926F12FEE5E438777CB6A932DF8CD8BEC4D073B931BA\
+3BC832B68D9DD300741FA7BF8AFC47ED2576F6936BA424663AAB639C\
+5AE4F5683423B4742BF1C978238F16CBE39D652DE3FDB8BEFC848AD9\
+22222E04A4037C0713EB57A81A23F0C73473FC646CEA306B4BCBC886\
+2F8385DDFA9D4B7FA2C087E879683303ED5BDD3A062B3CF5B3A278A6\
+6D2A13F83F44F82DDF310EE074AB6A364597E899A0255DC164F31CC5\
+0846851DF9AB48195DED7EA1B1D510BD7EE74D73FAF36BC31ECFA268\
+359046F4EB879F924009438B481C6CD7889A002ED5EE382BC9190DA6\
+FC026E479558E4475677E9AA9E3050E2765694DFC81F56E880B96E71\
+60C980DD98EDD3DFFFFFFFFFFFFFFFFF''',
+'13')
 )
 
 
@@ -280,7 +321,7 @@ def get_ngk( hash_class, ng_type, n_hex, g_hex ):
 
     
   
-def create_salted_verification_key( username, password, hash_alg=SHA1, ng_type=NG_1024, n_hex=None, g_hex=None ):
+def create_salted_verification_key( username, password, hash_alg=SHA1, ng_type=NG_2048, n_hex=None, g_hex=None ):
     if ng_type == NG_CUSTOM and (n_hex is None or g_hex is None):
         raise ValueError("Both n_hex and g_hex are required when ng_type = NG_CUSTOM")
     s    = BN_new()
@@ -313,7 +354,7 @@ def create_salted_verification_key( username, password, hash_alg=SHA1, ng_type=N
   
 
 class Verifier (object):
-    def __init__(self,  username, bytes_s, bytes_v, bytes_A, hash_alg=SHA1, ng_type=NG_1024, n_hex=None, g_hex=None):
+    def __init__(self,  username, bytes_s, bytes_v, bytes_A, hash_alg=SHA1, ng_type=NG_2048, n_hex=None, g_hex=None):
         if ng_type == NG_CUSTOM and (n_hex is None or g_hex is None):
             raise ValueError("Both n_hex and g_hex are required when ng_type = NG_CUSTOM")
         self.A     = BN_new()
@@ -419,7 +460,7 @@ class Verifier (object):
         
     
 class User (object):
-    def __init__(self, username, password, hash_alg=SHA1, ng_type=NG_1024, n_hex=None, g_hex=None):
+    def __init__(self, username, password, hash_alg=SHA1, ng_type=NG_2048, n_hex=None, g_hex=None):
         if ng_type == NG_CUSTOM and (n_hex is None or g_hex is None):
             raise ValueError("Both n_hex and g_hex are required when ng_type = NG_CUSTOM")
         self.username = username
-- 
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