diff options
Diffstat (limited to 'src/cert/cvc/signed_obj.cpp')
| -rw-r--r-- | src/cert/cvc/signed_obj.cpp | 41 |
1 files changed, 35 insertions, 6 deletions
diff --git a/src/cert/cvc/signed_obj.cpp b/src/cert/cvc/signed_obj.cpp index 4a08ed0ac..d6aa2f02b 100644 --- a/src/cert/cvc/signed_obj.cpp +++ b/src/cert/cvc/signed_obj.cpp @@ -1,12 +1,15 @@ /* -* X.509 SIGNED Object -* (C) 1999-2007 Jack Lloyd +* EAC SIGNED Object +* (C) 1999-2010 Jack Lloyd * 2007 FlexSecure GmbH * * Distributed under the terms of the Botan license */ #include <botan/signed_obj.h> +#include <botan/pubkey.h> +#include <botan/oids.h> +#include <memory> namespace Botan { @@ -42,6 +45,34 @@ AlgorithmIdentifier EAC_Signed_Object::signature_algorithm() const return sig_algo; } +bool EAC_Signed_Object::check_signature(Public_Key& pub_key, + const MemoryRegion<byte>& sig) const + { + try + { + std::vector<std::string> sig_info = + split_on(OIDS::lookup(sig_algo.oid), '/'); + + if(sig_info.size() != 2 || sig_info[0] != pub_key.algo_name()) + { + return false; + } + + std::string padding = sig_info[1]; + Signature_Format format = + (pub_key.message_parts() >= 2) ? DER_SEQUENCE : IEEE_1363; + + SecureVector<byte> to_sign = tbs_data(); + + PK_Verifier verifier(pub_key, padding, format); + return verifier.verify_message(to_sign, sig); + } + catch(...) + { + return false; + } + } + /* * Try to decode the actual information */ @@ -53,14 +84,12 @@ void EAC_Signed_Object::do_decode() catch(Decoding_Error& e) { const std::string what = e.what(); - throw Decoding_Error(PEM_label_pref + " decoding failed (" + - what.substr(23, std::string::npos) + ")"); + throw Decoding_Error(PEM_label_pref + " decoding failed (" + what + ")"); } catch(Invalid_Argument& e) { const std::string what = e.what(); - throw Decoding_Error(PEM_label_pref + " decoding failed (" + - what.substr(7, std::string::npos) + ")"); + throw Decoding_Error(PEM_label_pref + " decoding failed (" + what + ")"); } } |