Add Card Verifiable Certificates from InSiTo (does not built due to missing parts, not included in build by default)

1 files changed, 271 insertions, 0 deletions

diff --git a/src/cert/cvc/cvc_self.cpp b/src/cert/cvc/cvc_self.cpp
new file mode 100644
index 000000000..130ac6998
--- /dev/null
+++ b/src/cert/cvc/cvc_self.cpp
@@ -0,0 +1,271 @@
+#include <botan/cvc_self.h>
+#include <botan/cvc_cert.h>
+#include <botan/cvc_ca.h>
+#include <botan/alg_id.h>
+#include <botan/cvc_key.h>
+#include <botan/oids.h>
+#include <botan/look_pk.h>
+#include <botan/cvc_req.h>
+#include <botan/cvc_ado.h>
+#include <botan/util.h>
+#include <botan/config.h>
+#include <botan/ec.h>
+#include <sstream>
+using namespace Botan;
+namespace Botan
+  {
+    namespace
+      {
+
+        std::string padding_and_hash_from_oid(OID const& oid)
+        {
+          std::string padding_and_hash = OIDS::lookup(oid); // use the hash
+          assert(padding_and_hash.substr(0,6) == "ECDSA/"); // can only be ECDSA for now
+          assert(padding_and_hash.find("/",0) == 5);
+          padding_and_hash.erase(0, padding_and_hash.find("/",0) + 1);
+          return padding_and_hash;
+        }
+        std::string fixed_len_seqnr(u32bit seqnr, u32bit len)
+        {
+          std::stringstream ss;
+          std::string result;
+          ss << seqnr;
+          ss >> result;
+          if (result.size() > len)
+            {
+              throw Invalid_Argument("fixed_len_seqnr(): number too high to be encoded in provided length");
+            }
+          while (result.size() < len)
+            {
+              result.insert(0,"0");
+            }
+          return result;
+        }
+
+      }
+    namespace CVC_EAC
+      {
+
+        EAC1_1_CVC create_self_signed_cert(Private_Key const& key,
+                                           EAC1_1_CVC_Options const& opt)
+        {
+          // NOTE: we ignore
+          // the value
+          // of opt.chr
+          ECDSA_PrivateKey const* priv_key = dynamic_cast<ECDSA_PrivateKey const*>(&key);
+
+          if (priv_key == 0)
+            {
+              throw Invalid_Argument("CVC_EAC::create_self_signed_cert(): unsupported key type");
+            }
+
+          ASN1_Chr chr(opt.car.value());
+
+          AlgorithmIdentifier sig_algo;
+          std::string padding_and_hash(eac_cvc_emsa + "(" + opt.hash_alg + ")");
+          sig_algo.oid = OIDS::lookup_bsi(priv_key->algo_name() + "/" + padding_and_hash);
+          sig_algo = AlgorithmIdentifier(sig_algo.oid, AlgorithmIdentifier::USE_NULL_PARAM);
+
+          std::auto_ptr<Botan::PK_Signer> signer = get_pk_signer(*priv_key, padding_and_hash);
+
+          std::auto_ptr<EAC1_1_CVC_Encoder> enc(priv_key->cvc_eac1_1_encoder());
+          MemoryVector<byte> enc_public_key = enc->public_key(sig_algo);
+          return EAC1_1_CVC_CA::make_cert(signer, enc_public_key, opt.car, chr, opt.holder_auth_templ, opt.ced, opt.cex);
+
+        }
+
+        EAC1_1_Req create_cvc_req(Private_Key const& key,
+                                  ASN1_Chr const& chr,
+                                  std::string const& hash_alg)
+        {
+
+          ECDSA_PrivateKey const* priv_key = dynamic_cast<ECDSA_PrivateKey const*>(&key);
+          if (priv_key == 0)
+            {
+              throw Invalid_Argument("CVC_EAC::create_self_signed_cert(): unsupported key type");
+            }
+          AlgorithmIdentifier sig_algo;
+          std::string padding_and_hash(eac_cvc_emsa + "(" + hash_alg + ")");
+          sig_algo.oid = OIDS::lookup_bsi(priv_key->algo_name() + "/" + padding_and_hash);
+          sig_algo = AlgorithmIdentifier(sig_algo.oid, AlgorithmIdentifier::USE_NULL_PARAM);
+
+          std::auto_ptr<Botan::PK_Signer> signer = get_pk_signer(*priv_key, padding_and_hash);
+
+          std::auto_ptr<EAC1_1_CVC_Encoder> enc(priv_key->cvc_eac1_1_encoder());
+          MemoryVector<byte> enc_public_key = enc->public_key(sig_algo);
+          MemoryVector<byte> enc_cpi;
+          enc_cpi.append(0x00);
+          MemoryVector<byte> tbs = DER_Encoder()
+                                   .encode(enc_cpi, OCTET_STRING, ASN1_Tag(41), APPLICATION)
+                                   .raw_bytes(enc_public_key)
+                                   .encode(chr)
+                                   .get_contents();
+
+          MemoryVector<byte> signed_cert = EAC1_1_gen_CVC<EAC1_1_Req>::make_signed(signer, EAC1_1_gen_CVC<EAC1_1_Req>::build_cert_body(tbs));
+          std::tr1::shared_ptr<DataSource> source(new DataSource_Memory(signed_cert));
+          return EAC1_1_Req(source);
+        }
+
+        EAC1_1_ADO create_ado_req(Private_Key const& key,
+                                  EAC1_1_Req const& req,
+                                  ASN1_Car const& car)
+        {
+
+          ECDSA_PrivateKey const* priv_key = dynamic_cast<ECDSA_PrivateKey const*>(&key);
+          if (priv_key == 0)
+            {
+              throw Invalid_Argument("CVC_EAC::create_self_signed_cert(): unsupported key type");
+            }
+          std::string padding_and_hash = padding_and_hash_from_oid(req.signature_algorithm().oid);
+          std::auto_ptr<Botan::PK_Signer> signer = get_pk_signer(*priv_key, padding_and_hash);
+          SecureVector<byte> tbs_bits = req.BER_encode();
+          tbs_bits.append(DER_Encoder().encode(car).get_contents());
+          MemoryVector<byte> signed_cert = EAC1_1_ADO::make_signed(signer, tbs_bits);
+          std::tr1::shared_ptr<DataSource> source(new DataSource_Memory(signed_cert));
+          return EAC1_1_ADO(source);
+        }
+
+      } // namespace CVC_EAC
+    namespace DE_EAC
+      {
+        EAC1_1_CVC create_cvca(Private_Key const& key, std::string const& hash, ASN1_Car const& car, bool iris, bool fingerpr)
+        {
+          ECDSA_PrivateKey const* priv_key = dynamic_cast<ECDSA_PrivateKey const*>(&key);
+          if (priv_key == 0)
+            {
+              throw Invalid_Argument("CVC_EAC::create_self_signed_cert(): unsupported key type");
+            }
+          EAC1_1_CVC_Options opts;
+          opts.car = car;
+          const u64bit current_time = system_time();
+
+          opts.ced = ASN1_Ced(current_time);
+          opts.cex = ASN1_Cex(opts.ced);
+          opts.cex.add_months(global_config().option_as_u32bit("eac/ca/cvca_validity_months"));
+          opts.holder_auth_templ = (CVCA | (iris * IRIS) | (fingerpr * FINGERPRINT));
+          opts.hash_alg = hash;
+          return Botan::CVC_EAC::create_self_signed_cert(*priv_key, opts);
+        }
+
+
+
+        EAC1_1_CVC link_cvca(EAC1_1_CVC const& signer,
+                             Private_Key const& key,
+                             EAC1_1_CVC const& signee)
+        {
+          ECDSA_PrivateKey const* priv_key = dynamic_cast<ECDSA_PrivateKey const*>(&key);
+          if (priv_key == 0)
+            {
+              throw Invalid_Argument("CVC_EAC::create_self_signed_cert(): unsupported key type");
+            }
+          ASN1_Ced ced(system_time());
+          ASN1_Cex cex(signee.get_cex());
+          if (*static_cast<EAC_Time*>(&ced) > *static_cast<EAC_Time*>(&cex))
+            {
+              std::string detail("link_cvca(): validity periods of provided certificates don´t overlap: currend time = ced = ");
+              detail += ced.as_string();
+              detail += ", signee.cex = ";
+              detail += cex.as_string();
+              throw Invalid_Argument(detail);
+            }
+          if (signer.signature_algorithm() != signee.signature_algorithm())
+            {
+              throw Invalid_Argument("link_cvca(): signature algorithms of signer and signee don´t match");
+            }
+          AlgorithmIdentifier sig_algo = signer.signature_algorithm();
+          std::string padding_and_hash = padding_and_hash_from_oid(sig_algo.oid);
+          std::auto_ptr<Botan::PK_Signer> pk_signer = get_pk_signer(*priv_key, padding_and_hash);
+          std::auto_ptr<Public_Key> pk = signee.subject_public_key();
+          ECDSA_PublicKey*  subj_pk = dynamic_cast<ECDSA_PublicKey*>(pk.get());
+          subj_pk->set_parameter_encoding(ENC_EXPLICIT);
+          std::auto_ptr<EAC1_1_CVC_Encoder> enc(subj_pk->cvc_eac1_1_encoder());
+          MemoryVector<byte> enc_public_key = enc->public_key(sig_algo);
+          return EAC1_1_CVC_CA::make_cert(pk_signer, enc_public_key,
+                                          signer.get_car(),
+                                          signee.get_chr(),
+                                          signer.get_chat_value(),
+                                          ced,
+                                          cex);
+        }
+
+        EAC1_1_CVC sign_request(EAC1_1_CVC const& signer_cert,
+                                Private_Key const& key,
+                                EAC1_1_Req const& signee,
+                                u32bit seqnr,
+                                u32bit seqnr_len,
+                                bool domestic)
+        {
+              ECDSA_PrivateKey const* priv_key = dynamic_cast<ECDSA_PrivateKey const*>(&key);
+          if (priv_key == 0)
+            {
+              throw Invalid_Argument("CVC_EAC::create_self_signed_cert(): unsupported key type");
+            }
+          std::string chr_str = signee.get_chr().value();
+          chr_str.append(fixed_len_seqnr(seqnr, seqnr_len));
+          ASN1_Chr chr(chr_str);
+          std::string padding_and_hash = padding_and_hash_from_oid(signee.signature_algorithm().oid);
+          std::auto_ptr<Botan::PK_Signer> pk_signer = get_pk_signer(*priv_key, padding_and_hash);
+          std::auto_ptr<Public_Key> pk = signee.subject_public_key();
+          ECDSA_PublicKey*  subj_pk = dynamic_cast<ECDSA_PublicKey*>(pk.get());
+          std::auto_ptr<Public_Key> signer_pk = signer_cert.subject_public_key();
+
+          // for the case that the domain parameters are not set...
+          // (we use those from the signer because they must fit)
+          subj_pk->set_domain_parameters(priv_key->get_domain_parameters());
+
+          subj_pk->set_parameter_encoding(ENC_IMPLICITCA);
+          std::auto_ptr<EAC1_1_CVC_Encoder> enc(subj_pk->cvc_eac1_1_encoder());
+          AlgorithmIdentifier sig_algo(signer_cert.signature_algorithm());
+          MemoryVector<byte> enc_public_key = enc->public_key(sig_algo);
+          const u64bit current_time = system_time();
+          ASN1_Ced ced(current_time);
+          u32bit chat_val;
+          u32bit chat_low = signer_cert.get_chat_value() & 0x3; // take the chat rights from signer
+          ASN1_Cex cex(ced);
+          if ((signer_cert.get_chat_value() & CVCA) == CVCA)
+            {
+              // we sign a dvca
+              cex.add_months(global_config().option_as_u32bit("eac/ca/dvca_validity_months"));
+              if (domestic)
+                {
+                  chat_val = DVCA_domestic | chat_low;
+                }
+              else
+                {
+                  chat_val = DVCA_foreign | chat_low;
+                }
+            }
+          else if ((signer_cert.get_chat_value() & DVCA_domestic) == DVCA_domestic ||
+                        (signer_cert.get_chat_value() & DVCA_foreign) == DVCA_foreign)
+            {
+              cex.add_months(global_config().option_as_u32bit("eac/ca/is_validity_months"));
+              chat_val = IS | chat_low;
+            }
+          else
+            {
+              throw Invalid_Argument("sign_request(): encountered illegal value for CHAT");
+              // (IS cannot sign certificates)
+            }
+          return EAC1_1_CVC_CA::make_cert(pk_signer, enc_public_key,
+                                          ASN1_Car(signer_cert.get_chr().iso_8859()),
+                                          chr,
+                                          chat_val,
+                                          ced,
+                                          cex);
+        }
+        EAC1_1_Req create_cvc_req(Private_Key const& prkey,
+                                  ASN1_Chr const& chr,
+                                  std::string const& hash_alg)
+        {
+              ECDSA_PrivateKey const* priv_key = dynamic_cast<ECDSA_PrivateKey const*>(&prkey);
+          if (priv_key == 0)
+            {
+              throw Invalid_Argument("CVC_EAC::create_self_signed_cert(): unsupported key type");
+            }
+          ECDSA_PrivateKey key(*priv_key);
+          key.set_parameter_encoding(ENC_IMPLICITCA);
+          return Botan::CVC_EAC::create_cvc_req(key, chr, hash_alg);
+        }
+
+      } // namespace DE_EAC
+  }