Use just 256 bits of secret exponent (recomended value in RFC 5054).

Much faster, especially when using 8192 bit groups as OpenSSL does by
default.

Use BOTAN_DLL symbol visibility macros.

1 files changed, 15 insertions, 14 deletions

diff --git a/src/constructs/srp6/srp6.h b/src/constructs/srp6/srp6.h
index bf5cb4863..4fd127c70 100644
--- a/src/constructs/srp6/srp6.h
+++ b/src/constructs/srp6/srp6.h
@@ -1,6 +1,6 @@
 /*
 * SRP-6a (RFC 5054 compatatible)
-* (C) 2011 Jack Lloyd
+* (C) 2011,2012 Jack Lloyd
 *
 * Distributed under the terms of the Botan license
 */
@@ -28,13 +28,14 @@ namespace Botan {
 *
 * @return (A,K) the client public key and the shared secret key
 */
-std::pair<BigInt,SymmetricKey> srp6_client_agree(const std::string& username,
-                                                 const std::string& password,
-                                                 const std::string& group_id,
-                                                 const std::string& hash_id,
-                                                 const MemoryRegion<byte>& salt,
-                                                 const BigInt& B,
-                                                 RandomNumberGenerator& rng);
+std::pair<BigInt,SymmetricKey>
+BOTAN_DLL srp6_client_agree(const std::string& username,
+                            const std::string& password,
+                            const std::string& group_id,
+                            const std::string& hash_id,
+                            const MemoryRegion<byte>& salt,
+                            const BigInt& B,
+                            RandomNumberGenerator& rng);
 
 /**
 * Generate a new SRP-6 verifier
@@ -42,17 +43,17 @@ std::pair<BigInt,SymmetricKey> srp6_client_agree(const std::string& username,
 * @param password the secret used to authenticate user
 * @param salt a randomly chosen value, at least 128 bits long
 */
-BigInt generate_srp6_verifier(const std::string& identifier,
-                              const std::string& password,
-                              const MemoryRegion<byte>& salt,
-                              const std::string& group_id,
-                              const std::string& hash_id);
+BigInt BOTAN_DLL generate_srp6_verifier(const std::string& identifier,
+                                        const std::string& password,
+                                        const MemoryRegion<byte>& salt,
+                                        const std::string& group_id,
+                                        const std::string& hash_id);
 
 /**
 * Return the group id for this SRP param set, or else thrown an
 * exception
 */
-std::string srp6_group_identifier(const BigInt& N, const BigInt& g);
+std::string BOTAN_DLL srp6_group_identifier(const BigInt& N, const BigInt& g);
 
 /**
 * Represents a SRP-6a server session