diff options
Diffstat (limited to 'botan/src/codec/pem/pem.cpp')
| -rw-r--r-- | botan/src/codec/pem/pem.cpp | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/botan/src/codec/pem/pem.cpp b/botan/src/codec/pem/pem.cpp deleted file mode 100644 index 5141bee..0000000 --- a/botan/src/codec/pem/pem.cpp +++ /dev/null @@ -1,143 +0,0 @@ -/* -* PEM Encoding/Decoding -* (C) 1999-2007 Jack Lloyd -* -* Distributed under the terms of the Botan license -*/ - -#include <botan/pem.h> -#include <botan/filters.h> -#include <botan/parsing.h> - -namespace Botan { - -namespace PEM_Code { - -/* -* PEM encode BER/DER-encoded objects -*/ -std::string encode(const byte der[], u32bit length, const std::string& label, - u32bit width) - { - const std::string PEM_HEADER = "-----BEGIN " + label + "-----\n"; - const std::string PEM_TRAILER = "-----END " + label + "-----\n"; - - Pipe pipe(new Base64_Encoder(true, width)); - pipe.process_msg(der, length); - return (PEM_HEADER + pipe.read_all_as_string() + PEM_TRAILER); - } - -/* -* PEM encode BER/DER-encoded objects -*/ -std::string encode(const MemoryRegion<byte>& data, const std::string& label, - u32bit width) - { - return encode(data, data.size(), label, width); - } - -/* -* Decode PEM down to raw BER/DER -*/ -SecureVector<byte> decode_check_label(DataSource& source, - const std::string& label_want) - { - std::string label_got; - SecureVector<byte> ber = decode(source, label_got); - if(label_got != label_want) - throw Decoding_Error("PEM: Label mismatch, wanted " + label_want + - ", got " + label_got); - return ber; - } - -/* -* Decode PEM down to raw BER/DER -*/ -SecureVector<byte> decode(DataSource& source, std::string& label) - { - const u32bit RANDOM_CHAR_LIMIT = 8; - - const std::string PEM_HEADER1 = "-----BEGIN "; - const std::string PEM_HEADER2 = "-----"; - u32bit position = 0; - - while(position != PEM_HEADER1.length()) - { - byte b; - if(!source.read_byte(b)) - throw Decoding_Error("PEM: No PEM header found"); - if(b == PEM_HEADER1[position]) - ++position; - else if(position >= RANDOM_CHAR_LIMIT) - throw Decoding_Error("PEM: Malformed PEM header"); - else - position = 0; - } - position = 0; - while(position != PEM_HEADER2.length()) - { - byte b; - if(!source.read_byte(b)) - throw Decoding_Error("PEM: No PEM header found"); - if(b == PEM_HEADER2[position]) - ++position; - else if(position) - throw Decoding_Error("PEM: Malformed PEM header"); - - if(position == 0) - label += static_cast<char>(b); - } - - Pipe base64(new Base64_Decoder); - base64.start_msg(); - - const std::string PEM_TRAILER = "-----END " + label + "-----"; - position = 0; - while(position != PEM_TRAILER.length()) - { - byte b; - if(!source.read_byte(b)) - throw Decoding_Error("PEM: No PEM trailer found"); - if(b == PEM_TRAILER[position]) - ++position; - else if(position) - throw Decoding_Error("PEM: Malformed PEM trailer"); - - if(position == 0) - base64.write(b); - } - base64.end_msg(); - return base64.read_all(); - } - -/* -* Search for a PEM signature -*/ -bool matches(DataSource& source, const std::string& extra, - u32bit search_range) - { - const std::string PEM_HEADER = "-----BEGIN " + extra; - - SecureVector<byte> search_buf(search_range); - u32bit got = source.peek(search_buf, search_buf.size(), 0); - - if(got < PEM_HEADER.length()) - return false; - - u32bit index = 0; - - for(u32bit j = 0; j != got; ++j) - { - if(search_buf[j] == PEM_HEADER[index]) - ++index; - else - index = 0; - if(index == PEM_HEADER.size()) - return true; - } - return false; - } - -} - -} |
