Botan::SRP6_Authenticator_File Class Reference

#include <srp6_files.h>

List of all members.

Classes
struct	SRP6_Data
Public Member Functions
bool	lookup_user (const std::string &username, BigInt &v, std::vector< byte > &salt, std::string &group_id) const
	SRP6_Authenticator_File (const std::string &filename)

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Detailed Description

A GnuTLS compatible SRP6 authenticator file

Definition at line 20 of file srp6_files.h.

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Constructor & Destructor Documentation

Botan::SRP6_Authenticator_File::SRP6_Authenticator_File

(

const std::string &

filename

)

Parameters:

filename

will be opened and processed as a SRP authenticator file

Definition at line 15 of file srp6_files.cpp.

References Botan::base64_decode(), Botan::BER::decode(), Botan::split_on(), and Botan::unlock().

   {
   std::ifstream in(filename.c_str());

   if(!in)
      return; // no entries

   while(in.good())
      {
      std::string line;
      std::getline(in, line);

      std::vector<std::string> parts = split_on(line, ':');

      if(parts.size() != 4)
         throw Decoding_Error("Invalid line in SRP authenticator file");

      std::string username = parts[0];
      BigInt v = BigInt::decode(base64_decode(parts[1]));
      std::vector<byte> salt = unlock(base64_decode(parts[2]));
      BigInt group_id_idx = BigInt::decode(base64_decode(parts[3]));

      std::string group_id;

      if(group_id_idx == 1)
         group_id = "modp/srp/1024";
      else if(group_id_idx == 2)
         group_id = "modp/srp/1536";
      else if(group_id_idx == 3)
         group_id = "modp/srp/2048";
      else
         continue; // unknown group, ignored

      entries[username] = SRP6_Data(v, salt, group_id);
      }
   }

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Member Function Documentation

bool Botan::SRP6_Authenticator_File::lookup_user	(	const std::string &	username,
		BigInt &	v,
		std::vector< byte > &	salt,
		std::string &	group_id
	)		const

Definition at line 52 of file srp6_files.cpp.

   {
   std::map<std::string, SRP6_Data>::const_iterator i = entries.find(username);

   if(i == entries.end())
      return false;

   v = i->second.v;
   salt = i->second.salt;
   group_id = i->second.group_id;

   return true;
   }

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The documentation for this class was generated from the following files:

• src/lib/misc/srp6/srp6_files.h
• src/lib/misc/srp6/srp6_files.cpp