diff options
Diffstat (limited to 'src/codec/openpgp/openpgp.cpp')
-rw-r--r-- | src/codec/openpgp/openpgp.cpp | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/src/codec/openpgp/openpgp.cpp b/src/codec/openpgp/openpgp.cpp deleted file mode 100644 index 7bd811a2f..000000000 --- a/src/codec/openpgp/openpgp.cpp +++ /dev/null @@ -1,196 +0,0 @@ -/* -* OpenPGP Codec -* (C) 1999-2007 Jack Lloyd -* -* Distributed under the terms of the Botan license -*/ - -#include <botan/openpgp.h> -#include <botan/filters.h> -#include <botan/basefilt.h> -#include <botan/charset.h> -#include <botan/crc24.h> - -namespace Botan { - -/* -* OpenPGP Base64 encoding -*/ -std::string PGP_encode( - const byte input[], size_t length, - const std::string& label, - const std::map<std::string, std::string>& headers) - { - const std::string PGP_HEADER = "-----BEGIN PGP " + label + "-----\n"; - const std::string PGP_TRAILER = "-----END PGP " + label + "-----\n"; - const size_t PGP_WIDTH = 64; - - std::string pgp_encoded = PGP_HEADER; - - if(headers.find("Version") != headers.end()) - pgp_encoded += "Version: " + headers.find("Version")->second + '\n'; - - std::map<std::string, std::string>::const_iterator i = headers.begin(); - while(i != headers.end()) - { - if(i->first != "Version") - pgp_encoded += i->first + ": " + i->second + '\n'; - ++i; - } - pgp_encoded += '\n'; - - Pipe pipe(new Fork( - new Base64_Encoder(true, PGP_WIDTH), - new Chain(new Hash_Filter(new CRC24), new Base64_Encoder) - ) - ); - - pipe.process_msg(input, length); - - pgp_encoded += pipe.read_all_as_string(0); - pgp_encoded += '=' + pipe.read_all_as_string(1) + '\n'; - pgp_encoded += PGP_TRAILER; - - return pgp_encoded; - } - -/* -* OpenPGP Base64 encoding -*/ -std::string PGP_encode(const byte input[], size_t length, - const std::string& type) - { - std::map<std::string, std::string> empty; - return PGP_encode(input, length, type, empty); - } - -/* -* OpenPGP Base64 decoding -*/ -secure_vector<byte> PGP_decode(DataSource& source, - std::string& label, - std::map<std::string, std::string>& headers) - { - const size_t RANDOM_CHAR_LIMIT = 5; - - const std::string PGP_HEADER1 = "-----BEGIN PGP "; - const std::string PGP_HEADER2 = "-----"; - size_t position = 0; - - while(position != PGP_HEADER1.length()) - { - byte b; - if(!source.read_byte(b)) - throw Decoding_Error("PGP: No PGP header found"); - if(b == PGP_HEADER1[position]) - ++position; - else if(position >= RANDOM_CHAR_LIMIT) - throw Decoding_Error("PGP: Malformed PGP header"); - else - position = 0; - } - position = 0; - while(position != PGP_HEADER2.length()) - { - byte b; - if(!source.read_byte(b)) - throw Decoding_Error("PGP: No PGP header found"); - if(b == PGP_HEADER2[position]) - ++position; - else if(position) - throw Decoding_Error("PGP: Malformed PGP header"); - - if(position == 0) - label += static_cast<char>(b); - } - - headers.clear(); - bool end_of_headers = false; - while(!end_of_headers) - { - std::string this_header; - byte b = 0; - while(b != '\n') - { - if(!source.read_byte(b)) - throw Decoding_Error("PGP: Bad armor header"); - if(b != '\n') - this_header += static_cast<char>(b); - } - - end_of_headers = true; - for(size_t j = 0; j != this_header.length(); ++j) - if(!Charset::is_space(this_header[j])) - end_of_headers = false; - - if(!end_of_headers) - { - std::string::size_type pos = this_header.find(": "); - if(pos == std::string::npos) - throw Decoding_Error("OpenPGP: Bad headers"); - - std::string key = this_header.substr(0, pos); - std::string value = this_header.substr(pos + 2, std::string::npos); - headers[key] = value; - } - } - - Pipe base64(new Base64_Decoder, - new Fork(nullptr, - new Chain(new Hash_Filter(new CRC24), - new Base64_Encoder) - ) - ); - base64.start_msg(); - - const std::string PGP_TRAILER = "-----END PGP " + label + "-----"; - position = 0; - bool newline_seen = 0; - std::string crc; - while(position != PGP_TRAILER.length()) - { - byte b; - if(!source.read_byte(b)) - throw Decoding_Error("PGP: No PGP trailer found"); - if(b == PGP_TRAILER[position]) - ++position; - else if(position) - throw Decoding_Error("PGP: Malformed PGP trailer"); - - if(b == '=' && newline_seen) - { - while(b != '\n') - { - if(!source.read_byte(b)) - throw Decoding_Error("PGP: Bad CRC tail"); - if(b != '\n') - crc += static_cast<char>(b); - } - } - else if(b == '\n') - newline_seen = true; - else if(position == 0) - { - base64.write(b); - newline_seen = false; - } - } - base64.end_msg(); - - if(crc != "" && crc != base64.read_all_as_string(1)) - throw Decoding_Error("PGP: Corrupt CRC"); - - return base64.read_all(); - } - -/* -* OpenPGP Base64 decoding -*/ -secure_vector<byte> PGP_decode(DataSource& source, std::string& label) - { - std::map<std::string, std::string> ignored; - return PGP_decode(source, label, ignored); - } - -} - |