propagate from branch 'net.randombit.botan' (head 14c1d4dc8696d2705a70ec3d2403e01d2ca95265)

            to branch 'net.randombit.botan.c++0x' (head c567fa7310ba082a837562092728c4b4b882bf82)

29 files changed, 292 insertions, 367 deletions

diff --git a/src/cert/cvc/asn1_eac_tm.cpp b/src/cert/cvc/asn1_eac_tm.cpp
index ee2ed2ddf..1335e8afa 100644
--- a/src/cert/cvc/asn1_eac_tm.cpp
+++ b/src/cert/cvc/asn1_eac_tm.cpp
@@ -1,7 +1,7 @@
 /*
 * EAC Time Types
 * (C) 2007 FlexSecure GmbH
-*     2008 Jack Lloyd
+*     2008-2009 Jack Lloyd
 *
 * Distributed under the terms of the Botan license
 */
@@ -22,7 +22,7 @@ SecureVector<byte> enc_two_digit(u32bit in)
    {
    SecureVector<byte> result;
    in %= 100;
-   if (in < 10)
+   if(in < 10)
       result.append(0x00);
    else
       {
@@ -50,24 +50,24 @@ u32bit dec_two_digit(byte b1, byte b2)
 /*
 * Create an EAC_Time
 */
-EAC_Time::EAC_Time(u64bit timer, ASN1_Tag t)
-   :tag(t)
+EAC_Time::EAC_Time(const std::chrono::system_clock::time_point& time,
+                   ASN1_Tag t) : tag(t)
    {
-   std::tm time_info = time_t_to_tm(timer);
+   calendar_point cal = calendar_value(time);
 
-   year   = time_info.tm_year + 1900;
-   month  = time_info.tm_mon + 1;
-   day    = time_info.tm_mday;
+   year   = cal.year;
+   month  = cal.month;
+   day    = cal.day;
    }
 
 /*
 * Create an EAC_Time
 */
-EAC_Time::EAC_Time(const std::string& t_spec, ASN1_Tag t)
-   :tag(t)
+EAC_Time::EAC_Time(const std::string& t_spec, ASN1_Tag t) : tag(t)
    {
    set_to(t_spec);
    }
+
 /*
 * Create an EAC_Time
 */
@@ -84,7 +84,7 @@ EAC_Time::EAC_Time(u32bit y, u32bit m, u32bit d, ASN1_Tag t)
 */
 void EAC_Time::set_to(const std::string& time_str)
    {
-   if (time_str == "")
+   if(time_str == "")
       {
       year = month = day = 0;
       return;
@@ -93,28 +93,28 @@ void EAC_Time::set_to(const std::string& time_str)
    std::vector<std::string> params;
    std::string current;
 
-   for (u32bit j = 0; j != time_str.size(); ++j)
+   for(u32bit j = 0; j != time_str.size(); ++j)
       {
-      if (Charset::is_digit(time_str[j]))
+      if(Charset::is_digit(time_str[j]))
          current += time_str[j];
       else
          {
-         if (current != "")
+         if(current != "")
             params.push_back(current);
          current.clear();
          }
       }
-   if (current != "")
+   if(current != "")
       params.push_back(current);
 
-   if (params.size() != 3)
+   if(params.size() != 3)
       throw Invalid_Argument("Invalid time specification " + time_str);
 
    year   = to_u32bit(params[0]);
    month  = to_u32bit(params[1]);
    day    = to_u32bit(params[2]);
 
-   if (!passes_sanity_check())
+   if(!passes_sanity_check())
       throw Invalid_Argument("Invalid time specification " + time_str);
    }
 
@@ -133,15 +133,10 @@ void EAC_Time::encode_into(DER_Encoder& der) const
 */
 std::string EAC_Time::as_string() const
    {
-   if (time_is_set() == false)
+   if(time_is_set() == false)
       throw Invalid_State("EAC_Time::as_string: No time set");
 
-   std::string asn1rep;
-   asn1rep = to_string(year, 2);
-
-   asn1rep += to_string(month, 2) + to_string(day, 2);
-
-   return asn1rep;
+   return std::to_string(year * 10000 + month * 100 + day);
    }
 
 /*
@@ -157,15 +152,14 @@ bool EAC_Time::time_is_set() const
 */
 std::string EAC_Time::readable_string() const
    {
-   if (time_is_set() == false)
+   if(time_is_set() == false)
       throw Invalid_State("EAC_Time::readable_string: No time set");
 
-   std::string readable;
-   readable += to_string(year,     2) + "/";
-   readable += to_string(month,    2) + "/";
-   readable += to_string(day,      2) + " ";
+   std::string output(11, 0);
+
+   std::sprintf(&output[0], "%04d/%02d/%02d", year, month, day);
 
-   return readable;
+   return output;
    }
 
 /*
@@ -173,11 +167,11 @@ std::string EAC_Time::readable_string() const
 */
 bool EAC_Time::passes_sanity_check() const
    {
-   if (year < 2000 || year > 2099)
+   if(year < 2000 || year > 2099)
       return false;
-   if (month == 0 || month > 12)
+   if(month == 0 || month > 12)
       return false;
-   if (day == 0 || day > 31)
+   if(day == 0 || day > 31)
       return false;
 
    return true;
@@ -186,11 +180,11 @@ bool EAC_Time::passes_sanity_check() const
 /******************************************
 * modification functions
 ******************************************/
-
 void EAC_Time::add_years(u32bit years)
    {
    year += years;
    }
+
 void EAC_Time::add_months(u32bit months)
    {
    year += months/12;
@@ -202,23 +196,22 @@ void EAC_Time::add_months(u32bit months)
       }
    }
 
-
 /*
 * Compare this time against another
 */
 s32bit EAC_Time::cmp(const EAC_Time& other) const
    {
-   if (time_is_set() == false)
+   if(time_is_set() == false)
       throw Invalid_State("EAC_Time::cmp: No time set");
 
    const s32bit EARLIER = -1, LATER = 1, SAME_TIME = 0;
 
-   if (year < other.year)     return EARLIER;
-   if (year > other.year)     return LATER;
-   if (month < other.month)   return EARLIER;
-   if (month > other.month)   return LATER;
-   if (day < other.day)       return EARLIER;
-   if (day > other.day)       return LATER;
+   if(year < other.year)     return EARLIER;
+   if(year > other.year)     return LATER;
+   if(month < other.month)   return EARLIER;
+   if(month > other.month)   return LATER;
+   if(day < other.day)       return EARLIER;
+   if(day > other.day)       return LATER;
 
    return SAME_TIME;
    }
@@ -230,22 +223,27 @@ bool operator==(const EAC_Time& t1, const EAC_Time& t2)
    {
    return (t1.cmp(t2) == 0);
    }
+
 bool operator!=(const EAC_Time& t1, const EAC_Time& t2)
    {
    return (t1.cmp(t2) != 0);
    }
+
 bool operator<=(const EAC_Time& t1, const EAC_Time& t2)
    {
    return (t1.cmp(t2) <= 0);
    }
+
 bool operator>=(const EAC_Time& t1, const EAC_Time& t2)
    {
    return (t1.cmp(t2) >= 0);
    }
+
 bool operator>(const EAC_Time& t1, const EAC_Time& t2)
    {
    return (t1.cmp(t2) > 0);
    }
+
 bool operator<(const EAC_Time& t1, const EAC_Time& t2)
    {
    return (t1.cmp(t2) < 0);
@@ -282,19 +280,6 @@ void EAC_Time::decode_from(BER_Decoder& source)
 
    }
 
-u32bit EAC_Time::get_year() const
-   {
-   return year;
-   }
-u32bit EAC_Time::get_month() const
-   {
-   return month;
-   }
-u32bit EAC_Time::get_day() const
-   {
-   return day;
-   }
-
 /*
 * make the value an octet string for encoding
 */
@@ -307,28 +292,4 @@ SecureVector<byte> EAC_Time::encoded_eac_time() const
    return result;
    }
 
-ASN1_Ced::ASN1_Ced(std::string const& str)
-   : EAC_Time(str, ASN1_Tag(37))
-   {}
-
-ASN1_Ced::ASN1_Ced(u64bit val)
-   : EAC_Time(val, ASN1_Tag(37))
-   {}
-
-ASN1_Ced::ASN1_Ced(EAC_Time const& other)
-   : EAC_Time(other.get_year(), other.get_month(), other.get_day(), ASN1_Tag(37))
-   {}
-
-ASN1_Cex::ASN1_Cex(std::string const& str)
-   : EAC_Time(str, ASN1_Tag(36))
-   {}
-
-ASN1_Cex::ASN1_Cex(u64bit val)
-   : EAC_Time(val, ASN1_Tag(36))
-   {}
-
-ASN1_Cex::ASN1_Cex(EAC_Time const& other)
-   : EAC_Time(other.get_year(), other.get_month(), other.get_day(), ASN1_Tag(36))
-   {}
-
 }
diff --git a/src/cert/cvc/cvc_ado.cpp b/src/cert/cvc/cvc_ado.cpp
index 6e1484e90..47c972c72 100644
--- a/src/cert/cvc/cvc_ado.cpp
+++ b/src/cert/cvc/cvc_ado.cpp
@@ -12,7 +12,7 @@
 
 namespace Botan {
 
-EAC1_1_ADO::EAC1_1_ADO(std::tr1::shared_ptr<DataSource> in)
+EAC1_1_ADO::EAC1_1_ADO(std::shared_ptr<DataSource> in)
    {
    init(in);
    do_decode();
@@ -20,7 +20,7 @@ EAC1_1_ADO::EAC1_1_ADO(std::tr1::shared_ptr<DataSource> in)
 
 EAC1_1_ADO::EAC1_1_ADO(const std::string& in)
    {
-   std::tr1::shared_ptr<DataSource> stream(new DataSource_Stream(in, true));
+   std::shared_ptr<DataSource> stream(new DataSource_Stream(in, true));
    init(stream);
    do_decode();
    }
@@ -41,18 +41,18 @@ void EAC1_1_ADO::force_decode()
       .end_cons()
       .get_contents();
 
-   std::tr1::shared_ptr<DataSource> req_source(new DataSource_Memory(req_bits));
+   std::shared_ptr<DataSource> req_source(new DataSource_Memory(req_bits));
    m_req = EAC1_1_Req(req_source);
    sig_algo = m_req.sig_algo;
    }
 
 MemoryVector<byte> EAC1_1_ADO::make_signed(
-   std::auto_ptr<PK_Signer> signer,
+   PK_Signer& signer,
    const MemoryRegion<byte>& tbs_bits,
    RandomNumberGenerator& rng)
    {
    SecureVector<byte> concat_sig =
-      EAC1_1_obj<EAC1_1_ADO>::make_signature(signer.get(), tbs_bits, rng);
+      EAC1_1_obj<EAC1_1_ADO>::make_signature(signer, tbs_bits, rng);
    assert(concat_sig.size() % 2 == 0);
    MemoryVector<byte> result = DER_Encoder()
       .start_cons(ASN1_Tag(7), APPLICATION)
diff --git a/src/cert/cvc/cvc_ado.h b/src/cert/cvc/cvc_ado.h
index a0dbec2a6..5968b1ba4 100644
--- a/src/cert/cvc/cvc_ado.h
+++ b/src/cert/cvc/cvc_ado.h
@@ -38,7 +38,7 @@ class BOTAN_DLL EAC1_1_ADO : public EAC1_1_obj<EAC1_1_ADO>
       * Construct a CVC ADO request from a data source
       * @param source the data source
       */
-      EAC1_1_ADO(std::tr1::shared_ptr<DataSource> source);
+      EAC1_1_ADO(std::shared_ptr<DataSource> source);
 
       /**
       * Create a signed CVC ADO request from to be signed (TBS) data
@@ -46,7 +46,7 @@ class BOTAN_DLL EAC1_1_ADO : public EAC1_1_obj<EAC1_1_ADO>
       * @param tbs_bits the TBS data to sign
       */
       static MemoryVector<byte> make_signed(
-         std::auto_ptr<PK_Signer> signer,
+         PK_Signer& signer,
          const MemoryRegion<byte>& tbs_bits,
          RandomNumberGenerator& rng);
 
diff --git a/src/cert/cvc/cvc_ca.cpp b/src/cert/cvc/cvc_ca.cpp
index 8ca8db0c2..b51c1f4ff 100644
--- a/src/cert/cvc/cvc_ca.cpp
+++ b/src/cert/cvc/cvc_ca.cpp
@@ -4,7 +4,7 @@
 #include <botan/oids.h>
 namespace Botan {
 
-EAC1_1_CVC EAC1_1_CVC_CA::make_cert(std::auto_ptr<PK_Signer> signer,
+EAC1_1_CVC EAC1_1_CVC_CA::make_cert(PK_Signer& signer,
                                     MemoryRegion<byte> const& public_key,
                                     ASN1_Car const& car,
                                     ASN1_Chr const& chr,
@@ -37,7 +37,7 @@ EAC1_1_CVC EAC1_1_CVC_CA::make_cert(std::auto_ptr<PK_Signer> signer,
                               EAC1_1_CVC::build_cert_body(tbs),
                               rng);
 
-   std::tr1::shared_ptr<DataSource> source(new DataSource_Memory(signed_cert));
+   std::shared_ptr<DataSource> source(new DataSource_Memory(signed_cert));
 
    return EAC1_1_CVC(source);
    }
diff --git a/src/cert/cvc/cvc_ca.h b/src/cert/cvc/cvc_ca.h
index 3ec307bb3..87699808f 100644
--- a/src/cert/cvc/cvc_ca.h
+++ b/src/cert/cvc/cvc_ca.h
@@ -36,7 +36,7 @@ class BOTAN_DLL EAC1_1_CVC_CA
       * @param ced the CED to appear in the certificate
       * @param ced the CEX to appear in the certificate
       */
-      static EAC1_1_CVC make_cert(std::auto_ptr<PK_Signer> signer,
+      static EAC1_1_CVC make_cert(PK_Signer& signer,
                                   MemoryRegion<byte> const& public_key,
                                   ASN1_Car const& car,
                                   ASN1_Chr const& chr,
diff --git a/src/cert/cvc/cvc_cert.cpp b/src/cert/cvc/cvc_cert.cpp
index d2be12df8..5c2e28c39 100644
--- a/src/cert/cvc/cvc_cert.cpp
+++ b/src/cert/cvc/cvc_cert.cpp
@@ -61,7 +61,7 @@ void EAC1_1_CVC::force_decode()
    // FIXME: PK algos have no notion of EAC encoder/decoder currently
 #if 0
    ECDSA_PublicKey tmp_pk;
-   std::auto_ptr<EAC1_1_CVC_Decoder> dec = tmp_pk.cvc_eac1_1_decoder();
+   std::unique_ptr<EAC1_1_CVC_Decoder> dec = tmp_pk.cvc_eac1_1_decoder();
    sig_algo = dec->public_key(enc_pk);
 
 
@@ -78,7 +78,7 @@ void EAC1_1_CVC::force_decode()
 /*
 * CVC Certificate Constructor
 */
-EAC1_1_CVC::EAC1_1_CVC(std::tr1::shared_ptr<DataSource>& in)
+EAC1_1_CVC::EAC1_1_CVC(std::shared_ptr<DataSource>& in)
    {
    init(in);
    self_signed = false;
@@ -87,7 +87,7 @@ EAC1_1_CVC::EAC1_1_CVC(std::tr1::shared_ptr<DataSource>& in)
 
 EAC1_1_CVC::EAC1_1_CVC(const std::string& in)
    {
-   std::tr1::shared_ptr<DataSource> stream(new DataSource_Stream(in, true));
+   std::shared_ptr<DataSource> stream(new DataSource_Stream(in, true));
    init(stream);
    self_signed = false;
    do_decode();
diff --git a/src/cert/cvc/cvc_cert.h b/src/cert/cvc/cvc_cert.h
index 17671d332..0bc162c0c 100644
--- a/src/cert/cvc/cvc_cert.h
+++ b/src/cert/cvc/cvc_cert.h
@@ -59,7 +59,7 @@ class BOTAN_DLL EAC1_1_CVC : public EAC1_1_gen_CVC<EAC1_1_CVC>//Signed_Object
        * Construct a CVC from a data source
        * @param source the data source
        */
-       EAC1_1_CVC(std::tr1::shared_ptr<DataSource>& source);
+       EAC1_1_CVC(std::shared_ptr<DataSource>& source);
 
        /**
        * Construct a CVC from a file
diff --git a/src/cert/cvc/cvc_gen_cert.h b/src/cert/cvc/cvc_gen_cert.h
index 797970e29..059a82562 100644
--- a/src/cert/cvc/cvc_gen_cert.h
+++ b/src/cert/cvc/cvc_gen_cert.h
@@ -34,7 +34,7 @@ class BOTAN_DLL EAC1_1_gen_CVC : public EAC1_1_obj<Derived> // CRTP continuation
       * Get this certificates public key.
       * @result this certificates public key
       */
-      std::auto_ptr<Public_Key> subject_public_key() const;
+      std::unique_ptr<Public_Key> subject_public_key() const;
 
       /**
       * Find out whether this object is self signed.
@@ -76,7 +76,7 @@ class BOTAN_DLL EAC1_1_gen_CVC : public EAC1_1_obj<Derived> // CRTP continuation
       * @result the DER encoded signed generalized CVC object
       */
       static MemoryVector<byte> make_signed(
-         std::auto_ptr<PK_Signer> signer,
+         PK_Signer& signer,
          const MemoryRegion<byte>& tbs_bits,
          RandomNumberGenerator& rng);
       virtual ~EAC1_1_gen_CVC<Derived>()
@@ -104,11 +104,11 @@ template<typename Derived> bool EAC1_1_gen_CVC<Derived>::is_self_signed() const
    }
 
 template<typename Derived> MemoryVector<byte> EAC1_1_gen_CVC<Derived>::make_signed(
-   std::auto_ptr<PK_Signer> signer,
+   PK_Signer& signer,
    const MemoryRegion<byte>& tbs_bits,
    RandomNumberGenerator& rng) // static
    {
-   SecureVector<byte> concat_sig = EAC1_1_obj<Derived>::make_signature(signer.get(), tbs_bits, rng);
+   SecureVector<byte> concat_sig = EAC1_1_obj<Derived>::make_signature(signer, tbs_bits, rng);
    assert(concat_sig.size() % 2 == 0);
    return DER_Encoder()
       .start_cons(ASN1_Tag(33), APPLICATION)
@@ -118,9 +118,9 @@ template<typename Derived> MemoryVector<byte> EAC1_1_gen_CVC<Derived>::make_sign
       .get_contents();
    }
 
-template<typename Derived> std::auto_ptr<Public_Key> EAC1_1_gen_CVC<Derived>::subject_public_key() const
+template<typename Derived> std::unique_ptr<Public_Key> EAC1_1_gen_CVC<Derived>::subject_public_key() const
    {
-   return std::auto_ptr<Public_Key>(new ECDSA_PublicKey(m_pk));
+   return std::unique_ptr<Public_Key>(new ECDSA_PublicKey(m_pk));
    }
 
 template<typename Derived> SecureVector<byte> EAC1_1_gen_CVC<Derived>::build_cert_body(MemoryRegion<byte> const& tbs)
diff --git a/src/cert/cvc/cvc_req.cpp b/src/cert/cvc/cvc_req.cpp
index 70a44bacd..aa29d8ee6 100644
--- a/src/cert/cvc/cvc_req.cpp
+++ b/src/cert/cvc/cvc_req.cpp
@@ -44,13 +44,13 @@ void EAC1_1_Req::force_decode()
    // FIXME: No EAC support in ECDSA
 #if 0
    ECDSA_PublicKey tmp_pk;
-   std::auto_ptr<EAC1_1_CVC_Decoder> dec = tmp_pk.cvc_eac1_1_decoder();
+   std::unique_ptr<EAC1_1_CVC_Decoder> dec = tmp_pk.cvc_eac1_1_decoder();
    sig_algo = dec->public_key(enc_pk);
    m_pk = tmp_pk;
 #endif
    }
 
-EAC1_1_Req::EAC1_1_Req(std::tr1::shared_ptr<DataSource> in)
+EAC1_1_Req::EAC1_1_Req(std::shared_ptr<DataSource> in)
    {
    init(in);
    self_signed = true;
@@ -59,7 +59,7 @@ EAC1_1_Req::EAC1_1_Req(std::tr1::shared_ptr<DataSource> in)
 
 EAC1_1_Req::EAC1_1_Req(const std::string& in)
    {
-   std::tr1::shared_ptr<DataSource> stream(new DataSource_Stream(in, true));
+   std::shared_ptr<DataSource> stream(new DataSource_Stream(in, true));
    init(stream);
    self_signed = true;
    do_decode();
diff --git a/src/cert/cvc/cvc_req.h b/src/cert/cvc/cvc_req.h
index 28f03db80..ea05fc157 100644
--- a/src/cert/cvc/cvc_req.h
+++ b/src/cert/cvc/cvc_req.h
@@ -35,7 +35,7 @@ class BOTAN_DLL EAC1_1_Req : public EAC1_1_gen_CVC<EAC1_1_Req>
       * Construct a CVC request from a data source.
       * @param source the data source
       */
-      EAC1_1_Req(std::tr1::shared_ptr<DataSource> source);
+      EAC1_1_Req(std::shared_ptr<DataSource> source);
 
       /**
       * Construct a CVC request from a DER encoded CVC reqeust file.
diff --git a/src/cert/cvc/cvc_self.cpp b/src/cert/cvc/cvc_self.cpp
index 227ff4136..ae10838ac 100644
--- a/src/cert/cvc/cvc_self.cpp
+++ b/src/cert/cvc/cvc_self.cpp
@@ -14,7 +14,7 @@
 #include <botan/look_pk.h>
 #include <botan/cvc_req.h>
 #include <botan/cvc_ado.h>
-#include <botan/time.h>
+#include <chrono>
 #include <sstream>
 
 namespace Botan {
@@ -84,16 +84,18 @@ EAC1_1_CVC create_self_signed_cert(Private_Key const& key,
    sig_algo.oid = OIDS::lookup(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::unique_ptr<Botan::PK_Signer> signer(get_pk_signer(*priv_key, padding_and_hash));
 
 #if 0 // FIXME
-   std::auto_ptr<EAC1_1_CVC_Encoder> enc(priv_key->cvc_eac1_1_encoder());
+   std::unique_ptr<EAC1_1_CVC_Encoder> enc(priv_key->cvc_eac1_1_encoder());
    MemoryVector<byte> enc_public_key = enc->public_key(sig_algo);
 #else
    MemoryVector<byte> enc_public_key;
 #endif
 
-   return EAC1_1_CVC_CA::make_cert(signer, enc_public_key, opt.car, chr, opt.holder_auth_templ, opt.ced, opt.cex, rng);
+   return EAC1_1_CVC_CA::make_cert(*signer.get(), enc_public_key,
+                                   opt.car, chr, opt.holder_auth_templ,
+                                   opt.ced, opt.cex, rng);
 
    }
 
@@ -113,10 +115,10 @@ EAC1_1_Req create_cvc_req(Private_Key const& key,
    sig_algo.oid = OIDS::lookup(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::unique_ptr<Botan::PK_Signer> signer(get_pk_signer(*priv_key, padding_and_hash));
 
 #if 0 // FIXME
-   std::auto_ptr<EAC1_1_CVC_Encoder> enc(priv_key->cvc_eac1_1_encoder());
+   std::unique_ptr<EAC1_1_CVC_Encoder> enc(priv_key->cvc_eac1_1_encoder());
    MemoryVector<byte> enc_public_key = enc->public_key(sig_algo);
 #else
    MemoryVector<byte> enc_public_key;
@@ -130,8 +132,11 @@ EAC1_1_Req create_cvc_req(Private_Key const& 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), rng);
-   std::tr1::shared_ptr<DataSource> source(new DataSource_Memory(signed_cert));
+   MemoryVector<byte> signed_cert =
+      EAC1_1_gen_CVC<EAC1_1_Req>::make_signed(*signer.get(),
+                                              EAC1_1_gen_CVC<EAC1_1_Req>::build_cert_body(tbs), rng);
+
+   std::shared_ptr<DataSource> source(new DataSource_Memory(signed_cert));
    return EAC1_1_Req(source);
    }
 
@@ -146,12 +151,16 @@ EAC1_1_ADO create_ado_req(Private_Key const& key,
       {
       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));
+
+   std::unique_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, rng);
-   std::tr1::shared_ptr<DataSource> source(new DataSource_Memory(signed_cert));
+
+   MemoryVector<byte> signed_cert = EAC1_1_ADO::make_signed(*signer.get(), tbs_bits, rng);
+   std::shared_ptr<DataSource> source(new DataSource_Memory(signed_cert));
    return EAC1_1_ADO(source);
    }
 
@@ -172,9 +181,8 @@ EAC1_1_CVC create_cvca(Private_Key const& key,
       }
    EAC1_1_CVC_Options opts;
    opts.car = car;
-   const u64bit current_time = system_time();
 
-   opts.ced = ASN1_Ced(current_time);
+   opts.ced = ASN1_Ced(std::chrono::system_clock::now());
    opts.cex = ASN1_Cex(opts.ced);
    opts.cex.add_months(cvca_validity_months);
    opts.holder_auth_templ = (CVCA | (iris * IRIS) | (fingerpr * FINGERPRINT));
@@ -189,12 +197,12 @@ EAC1_1_CVC link_cvca(EAC1_1_CVC const& signer,
                      EAC1_1_CVC const& signee,
                      RandomNumberGenerator& rng)
    {
-   ECDSA_PrivateKey const* priv_key = dynamic_cast<ECDSA_PrivateKey const*>(&key);
+   const ECDSA_PrivateKey* 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());
+      throw Invalid_Argument("link_cvca(): unsupported key type");
+
+   ASN1_Ced ced(std::chrono::system_clock::now());
    ASN1_Cex cex(signee.get_cex());
    if (*static_cast<EAC_Time*>(&ced) > *static_cast<EAC_Time*>(&cex))
       {
@@ -210,19 +218,19 @@ EAC1_1_CVC link_cvca(EAC1_1_CVC const& signer,
       }
    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();
+   std::unique_ptr<Botan::PK_Signer> pk_signer(get_pk_signer(*priv_key, padding_and_hash));
+   std::unique_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);
 
 #if 0 // FIXME
-   std::auto_ptr<EAC1_1_CVC_Encoder> enc(subj_pk->cvc_eac1_1_encoder());
+   std::unique_ptr<EAC1_1_CVC_Encoder> enc(subj_pk->cvc_eac1_1_encoder());
    MemoryVector<byte> enc_public_key = enc->public_key(sig_algo);
 #else
    MemoryVector<byte> enc_public_key;
 #endif
 
-   return EAC1_1_CVC_CA::make_cert(pk_signer, enc_public_key,
+   return EAC1_1_CVC_CA::make_cert(*pk_signer.get(), enc_public_key,
                                    signer.get_car(),
                                    signee.get_chr(),
                                    signer.get_chat_value(),
@@ -250,10 +258,10 @@ EAC1_1_CVC sign_request(EAC1_1_CVC const& signer_cert,
    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();
+   std::unique_ptr<Botan::PK_Signer> pk_signer(get_pk_signer(*priv_key, padding_and_hash));
+   std::unique_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();
+   std::unique_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)
@@ -262,15 +270,16 @@ EAC1_1_CVC sign_request(EAC1_1_CVC const& signer_cert,
    subj_pk->set_parameter_encoding(ENC_IMPLICITCA);
 
 #if 0 // FIXME
-   std::auto_ptr<EAC1_1_CVC_Encoder> enc(subj_pk->cvc_eac1_1_encoder());
+   std::unique_ptr<EAC1_1_CVC_Encoder> enc(subj_pk->cvc_eac1_1_encoder());
    MemoryVector<byte> enc_public_key = enc->public_key(sig_algo);
 #else
    MemoryVector<byte> enc_public_key;
 #endif
 
    AlgorithmIdentifier sig_algo(signer_cert.signature_algorithm());
-   const u64bit current_time = system_time();
-   ASN1_Ced ced(current_time);
+
+   ASN1_Ced ced(std::chrono::system_clock::now());
+
    u32bit chat_val;
    u32bit chat_low = signer_cert.get_chat_value() & 0x3; // take the chat rights from signer
    ASN1_Cex cex(ced);
@@ -298,7 +307,7 @@ EAC1_1_CVC sign_request(EAC1_1_CVC const& signer_cert,
       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,
+   return EAC1_1_CVC_CA::make_cert(*pk_signer.get(), enc_public_key,
                                    ASN1_Car(signer_cert.get_chr().iso_8859()),
                                    chr,
                                    chat_val,
diff --git a/src/cert/cvc/eac_asn_obj.h b/src/cert/cvc/eac_asn_obj.h
index 652c9a6e6..79802951c 100644
--- a/src/cert/cvc/eac_asn_obj.h
+++ b/src/cert/cvc/eac_asn_obj.h
@@ -1,7 +1,7 @@
 /*
 * EAC ASN.1 Objects
 * (C) 2007-2008 FlexSecure GmbH
-*     2008 Jack Lloyd
+*     2008-2009 Jack Lloyd
 *
 * Distributed under the terms of the Botan license
 */
@@ -12,6 +12,7 @@
 #include <botan/asn1_obj.h>
 #include <vector>
 #include <map>
+#include <chrono>
 
 namespace Botan {
 
@@ -58,7 +59,6 @@ class BOTAN_DLL EAC_Time : public ASN1_Object
       * e.g. "2007 08 01"
       */
       void set_to(const std::string& str);
-      //void set_to(const std::string&, ASN1_Tag);
 
       /**
       * Add the specified number of years to this.
@@ -76,24 +76,28 @@ class BOTAN_DLL EAC_Time : public ASN1_Object
       * Get the year value of this objects.
       * @return the year value
       */
-      u32bit get_year() const;
+      u32bit get_year() const { return year; }
 
       /**
       * Get the month value of this objects.
       * @return the month value
       */
-      u32bit get_month() const;
+      u32bit get_month() const { return month; }
 
       /**
       * Get the day value of this objects.
       * @return the day value
       */
-      u32bit get_day() const;
+      u32bit get_day() const { return day; }
 
-      EAC_Time(u64bit, ASN1_Tag t = ASN1_Tag(0));
-      //EAC_Time(const std::string& = "");
-      EAC_Time(const std::string&, ASN1_Tag = ASN1_Tag(0));
-      EAC_Time(u32bit year, u32bit month, u32bit day, ASN1_Tag = ASN1_Tag(0));
+      EAC_Time(const std::chrono::system_clock::time_point& time,
+               ASN1_Tag tag = ASN1_Tag(0));
+
+      EAC_Time(const std::string& yyyy_mm_dd,
+               ASN1_Tag tag = ASN1_Tag(0));
+
+      EAC_Time(u32bit year, u32bit month, u32bit day,
+               ASN1_Tag tag = ASN1_Tag(0));
 
       virtual ~EAC_Time() {}
    private:
@@ -115,25 +119,25 @@ class BOTAN_DLL ASN1_Ced : public EAC_Time
       * @param str a string in the format "yyyy mm dd",
       * e.g. "2007 08 01"
       */
-      ASN1_Ced(std::string const& str = "");
+      ASN1_Ced(std::string const& str = "") :
+         EAC_Time(str, ASN1_Tag(37)) {}
 
       /**
-      * Construct a CED from a timer value.
-      * @param time the number of seconds elapsed midnight, 1st
-      * January 1970 GMT (or 7pm, 31st December 1969 EST) up to the
-      * desired date
+      * Construct a CED from a time point
       */
-      ASN1_Ced(u64bit time);
+      ASN1_Ced(const std::chrono::system_clock::time_point& time) :
+         EAC_Time(time, ASN1_Tag(37)) {}
 
       /**
       * Copy constructor (for general EAC_Time objects).
       * @param other the object to copy from
       */
-      ASN1_Ced(EAC_Time const& other);
-      //ASN1_Ced(ASN1_Cex const& cex);
+      ASN1_Ced(EAC_Time const& other) :
+         EAC_Time(other.get_year(), other.get_month(), other.get_day(),
+                  ASN1_Tag(37))
+         {}
    };
 
-
 /**
 * This class represents CVC CEXs. Only limited sanity checks of
 * the inputted date value are performed.
@@ -142,27 +146,20 @@ class BOTAN_DLL ASN1_Cex : public EAC_Time
    {
    public:
       /**
-      * Construct a CED from a string value.
+      * Construct a CEX from a string value.
       * @param str a string in the format "yyyy mm dd",
       * e.g. "2007 08 01"
       */
-      ASN1_Cex(std::string const& str="");
+      ASN1_Cex(std::string const& str = "") :
+         EAC_Time(str, ASN1_Tag(36)) {}
 
-      /**
-      * Construct a CED from a timer value.
-      * @param time the number of seconds elapsed
-      *  midnight, 1st
-      * January 1970 GMT (or 7pm, 31st December 1969 EST)
-      * up to the desired date
-      */
-      ASN1_Cex(u64bit time);
+      ASN1_Cex(const std::chrono::system_clock::time_point& time) :
+         EAC_Time(time, ASN1_Tag(36)) {}
 
-      /**
-      * Copy constructor (for general EAC_Time objects).
-      * @param other the object to copy from
-      */
-      ASN1_Cex(EAC_Time const& other);
-      //ASN1_Cex(ASN1_Ced const& ced);
+      ASN1_Cex(EAC_Time const& other) :
+         EAC_Time(other.get_year(), other.get_month(), other.get_day(),
+                  ASN1_Tag(36))
+         {}
    };
 
 /**
diff --git a/src/cert/cvc/eac_obj.h b/src/cert/cvc/eac_obj.h
index d357adb7d..f822442bc 100644
--- a/src/cert/cvc/eac_obj.h
+++ b/src/cert/cvc/eac_obj.h
@@ -54,7 +54,7 @@ class BOTAN_DLL EAC1_1_obj : public EAC_Signed_Object
    protected:
       void init(SharedPtrConverter<DataSource> in);
 
-      static SecureVector<byte> make_signature(PK_Signer* signer,
+      static SecureVector<byte> make_signature(PK_Signer& signer,
                                                const MemoryRegion<byte>& tbs_bits,
                                                RandomNumberGenerator& rng);
 
@@ -68,12 +68,12 @@ template<typename Derived> SecureVector<byte> EAC1_1_obj<Derived>::get_concat_si
    }
 
 template<typename Derived> SecureVector<byte>
-EAC1_1_obj<Derived>::make_signature(PK_Signer* signer,
+EAC1_1_obj<Derived>::make_signature(PK_Signer& signer,
                                     const MemoryRegion<byte>& tbs_bits,
                                     RandomNumberGenerator& rng)
    {
    // this is the signature as a der sequence
-   SecureVector<byte> seq_sig = signer->sign_message(tbs_bits, rng);
+   SecureVector<byte> seq_sig = signer.sign_message(tbs_bits, rng);
 
    ECDSA_Signature sig(decode_seq(seq_sig));
    SecureVector<byte> concat_sig(sig.get_concatenation());
@@ -112,12 +112,12 @@ bool EAC1_1_obj<Derived>::check_signature(Public_Key& pub_key) const
       if(!dynamic_cast<PK_Verifying_wo_MR_Key*>(&pub_key))
          return false;
 
-      std::auto_ptr<ECDSA_Signature_Encoder> enc(new ECDSA_Signature_Encoder(&m_sig));
+      std::unique_ptr<ECDSA_Signature_Encoder> enc(new ECDSA_Signature_Encoder(&m_sig));
       SecureVector<byte> seq_sig = enc->signature_bits();
       SecureVector<byte> to_sign = tbs_data();
 
       PK_Verifying_wo_MR_Key& sig_key = dynamic_cast<PK_Verifying_wo_MR_Key&>(pub_key);
-      std::auto_ptr<PK_Verifier> verifier(get_pk_verifier(sig_key, padding, format));
+      std::unique_ptr<PK_Verifier> verifier(get_pk_verifier(sig_key, padding, format));
       return verifier->verify_message(to_sign, seq_sig);
       }
    catch(...)
diff --git a/src/cert/cvc/ecdsa_sig.cpp b/src/cert/cvc/ecdsa_sig.cpp
index c33a4550a..1a60f7aa8 100644
--- a/src/cert/cvc/ecdsa_sig.cpp
+++ b/src/cert/cvc/ecdsa_sig.cpp
@@ -41,7 +41,7 @@ ECDSA_Signature const decode_seq(MemoryRegion<byte> const& seq)
    {
    ECDSA_Signature sig;
 
-   std::auto_ptr<ECDSA_Signature_Decoder> dec(new ECDSA_Signature_Decoder(&sig));
+   std::unique_ptr<ECDSA_Signature_Decoder> dec(new ECDSA_Signature_Decoder(&sig));
    dec->signature_bits(seq);
    return sig;
    }
diff --git a/src/cert/cvc/freestore.h b/src/cert/cvc/freestore.h
index 7f8b85388..3049dbd13 100644
--- a/src/cert/cvc/freestore.h
+++ b/src/cert/cvc/freestore.h
@@ -8,14 +8,7 @@
 #define BOTAN_FREESTORE_H__
 
 #include <botan/build.h>
-
-#if defined(BOTAN_USE_STD_TR1)
-  #include <tr1/memory>
-#elif defined(BOTAN_USE_BOOST_TR1)
-  #include <boost/tr1/memory.hpp>
-#else
-  #error "Please choose a TR1 implementation in build.h"
-#endif
+#include <memory>
 
 namespace Botan {
 
@@ -29,7 +22,7 @@ template<typename T>
 class BOTAN_DLL SharedPtrConverter
    {
    public:
-      typedef std::tr1::shared_ptr<T> SharedPtr;
+      typedef std::shared_ptr<T> SharedPtr;
 
       /**
       * Construct a null pointer equivalent object.
diff --git a/src/cert/cvc/info.txt b/src/cert/cvc/info.txt
index 2033b9576..b89441a03 100644
--- a/src/cert/cvc/info.txt
+++ b/src/cert/cvc/info.txt
@@ -1,7 +1,5 @@
 define CARD_VERIFIABLE_CERTIFICATES
 
-uses_tr1 yes
-
 load_on auto
 
 <header:public>
diff --git a/src/cert/x509/crl_ent.cpp b/src/cert/x509/crl_ent.cpp
index 42a742ebb..e7ce1a57a 100644
--- a/src/cert/x509/crl_ent.cpp
+++ b/src/cert/x509/crl_ent.cpp
@@ -11,7 +11,6 @@
 #include <botan/ber_dec.h>
 #include <botan/bigint.h>
 #include <botan/oids.h>
-#include <botan/time.h>
 
 namespace Botan {
 
@@ -31,7 +30,7 @@ CRL_Entry::CRL_Entry(const X509_Certificate& cert, CRL_Code why) :
    throw_on_unknown_critical(false)
    {
    serial = cert.serial_number();
-   time = X509_Time(system_time());
+   time = X509_Time(std::chrono::system_clock::now());
    reason = why;
    }
 
diff --git a/src/cert/x509/pkcs10.cpp b/src/cert/x509/pkcs10.cpp
index 5617cece4..5645552a0 100644
--- a/src/cert/x509/pkcs10.cpp
+++ b/src/cert/x509/pkcs10.cpp
@@ -45,7 +45,7 @@ void PKCS10_Request::force_decode()
    cert_req_info.decode(version);
    if(version != 0)
       throw Decoding_Error("Unknown version code in PKCS #10 request: " +
-                           to_string(version));
+                           std::to_string(version));
 
    X509_DN dn_subject;
    cert_req_info.decode(dn_subject);
diff --git a/src/cert/x509/x509_ca.cpp b/src/cert/x509/x509_ca.cpp
index 16b7b3b9b..59a5bbaf8 100644
--- a/src/cert/x509/x509_ca.cpp
+++ b/src/cert/x509/x509_ca.cpp
@@ -14,10 +14,6 @@
 #include <botan/lookup.h>
 #include <botan/look_pk.h>
 #include <botan/oids.h>
-#include <botan/time.h>
-#include <algorithm>
-#include <typeinfo>
-#include <iterator>
 #include <memory>
 #include <set>
 
@@ -61,7 +57,7 @@ X509_Certificate X509_CA::sign_request(const PKCS10_Request& req,
       constraints = Key_Constraints(KEY_CERT_SIGN | CRL_SIGN);
    else
       {
-      std::auto_ptr<Public_Key> key(req.subject_public_key());
+      std::unique_ptr<Public_Key> key(req.subject_public_key());
       constraints = X509::find_constraints(*key, req.constraints());
       }
 
@@ -173,8 +169,7 @@ X509_CRL X509_CA::update_crl(const X509_CRL& crl,
 
    for(u32bit j = 0; j != already_revoked.size(); ++j)
       {
-      std::set<SecureVector<byte> >::const_iterator i;
-      i = removed_from_crl.find(already_revoked[j].serial_number());
+      auto i = removed_from_crl.find(already_revoked[j].serial_number());
 
       if(i == removed_from_crl.end())
          all_revoked.push_back(already_revoked[j]);
@@ -201,7 +196,8 @@ X509_CRL X509_CA::make_crl(const std::vector<CRL_Entry>& revoked,
       next_update = timespec_to_u32bit("7d");
 
    // Totally stupid: ties encoding logic to the return of std::time!!
-   const u64bit current_time = system_time();
+   auto current_time = std::chrono::system_clock::now();
+   auto expire_time = current_time + std::chrono::seconds(next_update);
 
    Extensions extensions;
    extensions.add(
@@ -214,7 +210,7 @@ X509_CRL X509_CA::make_crl(const std::vector<CRL_Entry>& revoked,
             .encode(ca_sig_algo)
             .encode(cert.issuer_dn())
             .encode(X509_Time(current_time))
-            .encode(X509_Time(current_time + next_update))
+            .encode(X509_Time(expire_time))
             .encode_if(revoked.size() > 0,
                  DER_Encoder()
                     .start_cons(SEQUENCE)
@@ -275,7 +271,7 @@ PK_Signer* choose_sig_format(const Private_Key& key,
 
    sig_algo.oid = OIDS::lookup(algo_name + "/" + padding);
 
-   std::auto_ptr<X509_Encoder> encoding(key.x509_encoder());
+   std::unique_ptr<X509_Encoder> encoding(key.x509_encoder());
    if(!encoding.get())
       throw Encoding_Error("Key " + algo_name + " does not support "
                            "X.509 encoding");
diff --git a/src/cert/x509/x509_ca.h b/src/cert/x509/x509_ca.h
index 6eb4bbbef..b680bd0e4 100644
--- a/src/cert/x509/x509_ca.h
+++ b/src/cert/x509/x509_ca.h
@@ -97,11 +97,11 @@ class BOTAN_DLL X509_CA
               const Private_Key& key,
               const std::string& hash_fn);
 
+      X509_CA(const X509_CA&) = delete;
+      X509_CA& operator=(const X509_CA&) = delete;
+
       ~X509_CA();
    private:
-      X509_CA(const X509_CA&) {}
-      X509_CA& operator=(const X509_CA&) { return (*this); }
-
       X509_CRL make_crl(const std::vector<CRL_Entry>& entries,
                         u32bit crl_number, u32bit next_update,
                         RandomNumberGenerator& rng) const;
diff --git a/src/cert/x509/x509_crl.cpp b/src/cert/x509/x509_crl.cpp
index f6a344dba..3613c1a91 100644
--- a/src/cert/x509/x509_crl.cpp
+++ b/src/cert/x509/x509_crl.cpp
@@ -44,7 +44,7 @@ void X509_CRL::force_decode()
 
    if(version != 0 && version != 1)
       throw X509_CRL_Error("Unknown X.509 CRL version " +
-                           to_string(version+1));
+                           std::to_string(version+1));
 
    AlgorithmIdentifier sig_algo_inner;
    tbs_crl.decode(sig_algo_inner);
diff --git a/src/cert/x509/x509_obj.cpp b/src/cert/x509/x509_obj.cpp
index 31b4a309f..95a1c1cca 100644
--- a/src/cert/x509/x509_obj.cpp
+++ b/src/cert/x509/x509_obj.cpp
@@ -168,7 +168,7 @@ bool X509_Object::check_signature(Public_Key& pub_key) const
       Signature_Format format =
          (pub_key.message_parts() >= 2) ? DER_SEQUENCE : IEEE_1363;
 
-      std::auto_ptr<PK_Verifier> verifier;
+      std::unique_ptr<PK_Verifier> verifier;
 
       if(dynamic_cast<PK_Verifying_with_MR_Key*>(&pub_key))
          {
diff --git a/src/cert/x509/x509cert.cpp b/src/cert/x509/x509cert.cpp
index 05f23298b..e3844e8e9 100644
--- a/src/cert/x509/x509cert.cpp
+++ b/src/cert/x509/x509cert.cpp
@@ -27,12 +27,8 @@ std::vector<std::string> lookup_oids(const std::vector<std::string>& in)
    {
    std::vector<std::string> out;
 
-   std::vector<std::string>::const_iterator i = in.begin();
-   while(i != in.end())
-      {
+   for(auto i = in.begin(); i != in.end(); ++i)
       out.push_back(OIDS::lookup(OID(*i)));
-      ++i;
-      }
    return out;
    }
 
@@ -84,7 +80,7 @@ void X509_Certificate::force_decode()
       .decode(dn_subject);
 
    if(version > 2)
-      throw Decoding_Error("Unknown X.509 cert version " + to_string(version));
+      throw Decoding_Error("Unknown X.509 cert version " + std::to_string(version));
    if(sig_algo != sig_algo_inner)
       throw Decoding_Error("Algorithm identifier mismatch");
 
@@ -304,25 +300,16 @@ bool operator!=(const X509_Certificate& cert1, const X509_Certificate& cert2)
 */
 X509_DN create_dn(const Data_Store& info)
    {
-   class DN_Matcher : public Data_Store::Matcher
+   auto names = info.search_for(
+      [](const std::string& key, const std::string&)
       {
-      public:
-         bool operator()(const std::string& key, const std::string&) const
-            {
-            if(key.find("X520.") != std::string::npos)
-               return true;
-            return false;
-            }
-      };
-
-   std::multimap<std::string, std::string> names =
-      info.search_with(DN_Matcher());
+         return (key.find("X520.") != std::string::npos);
+      });
 
    X509_DN dn;
 
-   std::multimap<std::string, std::string>::iterator j;
-   for(j = names.begin(); j != names.end(); ++j)
-      dn.add_attribute(j->first, j->second);
+   for(auto i = names.begin(); i != names.end(); ++i)
+      dn.add_attribute(i->first, i->second);
 
    return dn;
    }
@@ -332,33 +319,19 @@ X509_DN create_dn(const Data_Store& info)
 */
 AlternativeName create_alt_name(const Data_Store& info)
    {
-   class AltName_Matcher : public Data_Store::Matcher
+   auto names = info.search_for(
+      [](const std::string& key, const std::string&)
       {
-      public:
-         bool operator()(const std::string& key, const std::string&) const
-            {
-            for(u32bit j = 0; j != matches.size(); ++j)
-               if(key.compare(matches[j]) == 0)
-                  return true;
-            return false;
-            }
-
-         AltName_Matcher(const std::string& match_any_of)
-            {
-            matches = split_on(match_any_of, '/');
-            }
-      private:
-         std::vector<std::string> matches;
-      };
-
-   std::multimap<std::string, std::string> names =
-      info.search_with(AltName_Matcher("RFC822/DNS/URI/IP"));
+         return (key == "RFC822" ||
+                 key == "DNS" ||
+                 key == "URI" ||
+                 key == "IP");
+      });
 
    AlternativeName alt_name;
 
-   std::multimap<std::string, std::string>::iterator j;
-   for(j = names.begin(); j != names.end(); ++j)
-      alt_name.add_attribute(j->first, j->second);
+   for(auto i = names.begin(); i != names.end(); ++i)
+      alt_name.add_attribute(i->first, i->second);
 
    return alt_name;
    }
diff --git a/src/cert/x509/x509find.cpp b/src/cert/x509/x509find.cpp
index 257367da9..41643a94a 100644
--- a/src/cert/x509/x509find.cpp
+++ b/src/cert/x509/x509find.cpp
@@ -11,6 +11,8 @@
 
 namespace Botan {
 
+namespace X509_Store_Search {
+
 namespace {
 
 /*
@@ -42,70 +44,65 @@ bool ignore_case(const std::string& searching_for, const std::string& found)
 /*
 * Search based on the contents of a DN entry
 */
-bool DN_Check::match(const X509_Certificate& cert) const
+std::function<bool (const X509_Certificate&)>
+by_dn(const std::string& dn_entry,
+      const std::string& to_find,
+      DN_Search_Type method)
    {
-   std::vector<std::string> info = cert.subject_info(dn_entry);
-
-   for(u32bit j = 0; j != info.size(); ++j)
-      if(compare(info[j], looking_for))
-         return true;
-   return false;
-   }
+   if(method == SUBSTRING_MATCHING)
+      return by_dn(dn_entry, to_find, substring_match);
+   else if(method == IGNORE_CASE)
+      return by_dn(dn_entry, to_find, ignore_case);
 
-/*
-* DN_Check Constructor
-*/
-DN_Check::DN_Check(const std::string& dn_entry, const std::string& looking_for,
-                   compare_fn func)
-   {
-   this->dn_entry = dn_entry;
-   this->looking_for = looking_for;
-   compare = func;
+   throw Invalid_Argument("Unknown method argument to by_dn");
    }
 
-/*
-* DN_Check Constructor
-*/
-DN_Check::DN_Check(const std::string& dn_entry, const std::string& looking_for,
-                   Search_Type method)
+std::function<bool (const X509_Certificate&)>
+by_dn(const std::string& dn_entry,
+      const std::string& to_find,
+      std::function<bool (std::string, std::string)> compare)
    {
-   this->dn_entry = dn_entry;
-   this->looking_for = looking_for;
+   return [&](const X509_Certificate& cert)
+      {
+      std::vector<std::string> info = cert.subject_info(dn_entry);
 
-   if(method == SUBSTRING_MATCHING)
-      compare = &substring_match;
-   else if(method == IGNORE_CASE)
-      compare = &ignore_case;
-   else
-      throw Invalid_Argument("Unknown method argument to DN_Check()");
+      for(u32bit i = 0; i != info.size(); ++i)
+         if(compare(info[i], to_find))
+            return true;
+      return false;
+      };
    }
 
-/*
-* Match by issuer and serial number
-*/
-bool IandS_Match::match(const X509_Certificate& cert) const
+std::function<bool (const X509_Certificate&)>
+by_issuer_and_serial(const X509_DN& issuer, const MemoryRegion<byte>& serial)
    {
-   if(cert.serial_number() != serial)
-      return false;
-   return (cert.issuer_dn() == issuer);
+   /* Serial number compare is much faster than X.509 DN, and unlikely
+   to collide even across issuers, so do that first to fail fast
+   */
+
+   return [&](const X509_Certificate& cert)
+      {
+      if(cert.serial_number() != serial)
+         return false;
+      return (cert.issuer_dn() == issuer);
+      };
    }
 
-/*
-* IandS_Match Constructor
-*/
-IandS_Match::IandS_Match(const X509_DN& issuer,
-                         const MemoryRegion<byte>& serial)
+std::function<bool (const X509_Certificate&)>
+by_issuer_and_serial(const X509_DN& issuer, const BigInt& serial)
    {
-   this->issuer = issuer;
-   this->serial = serial;
+   return by_issuer_and_serial(issuer, BigInt::encode(serial));
    }
 
-/*
-* Match by subject key identifier
-*/
-bool SKID_Match::match(const X509_Certificate& cert) const
+std::function<bool (const X509_Certificate&)>
+by_skid(const MemoryRegion<byte>& subject_key_id)
    {
-   return (cert.subject_key_id() == skid);
+   return [&](const X509_Certificate& cert)
+      {
+      return (cert.subject_key_id() == subject_key_id);
+      };
    }
 
 }
+
+}
diff --git a/src/cert/x509/x509find.h b/src/cert/x509/x509find.h
index a7a84c7a5..1bf29dfbc 100644
--- a/src/cert/x509/x509find.h
+++ b/src/cert/x509/x509find.h
@@ -9,51 +9,43 @@
 #define BOTAN_X509_CERT_STORE_SEARCH_H__
 
 #include <botan/x509stor.h>
+#include <botan/bigint.h>
 
 namespace Botan {
 
+namespace X509_Store_Search {
+
 /*
 * Search based on the contents of a DN entry
 */
-class BOTAN_DLL DN_Check : public X509_Store::Search_Func
-   {
-   public:
-      typedef bool (*compare_fn)(const std::string&, const std::string&);
-      enum Search_Type { SUBSTRING_MATCHING, IGNORE_CASE };
+enum DN_Search_Type { SUBSTRING_MATCHING, IGNORE_CASE };
 
-      bool match(const X509_Certificate& cert) const;
+std::function<bool (const X509_Certificate&)>
+by_dn(const std::string& dn_entry,
+          const std::string& to_find,
+          DN_Search_Type method);
 
-      DN_Check(const std::string&, const std::string&, compare_fn);
-      DN_Check(const std::string&, const std::string&, Search_Type);
-   private:
-      std::string dn_entry, looking_for;
-      compare_fn compare;
-   };
+std::function<bool (const X509_Certificate&)>
+by_dn(const std::string& dn_entry,
+          const std::string& to_find,
+          std::function<bool (std::string, std::string)> method);
 
-/*
-* Search for a certificate by issuer/serial
+/**
+* Search for certs by issuer + serial number
 */
-class BOTAN_DLL IandS_Match : public X509_Store::Search_Func
-   {
-   public:
-      bool match(const X509_Certificate& cert) const;
-      IandS_Match(const X509_DN&, const MemoryRegion<byte>&);
-   private:
-      X509_DN issuer;
-      MemoryVector<byte> serial;
-   };
+std::function<bool (const X509_Certificate&)>
+by_issuer_and_serial(const X509_DN& issuer, const MemoryRegion<byte>& serial);
 
-/*
-* Search for a certificate by subject keyid
+std::function<bool (const X509_Certificate&)>
+by_issuer_and_serial(const X509_DN& issuer, const BigInt& serial);
+
+/**
+* Search for certs by subject key identifier
 */
-class BOTAN_DLL SKID_Match : public X509_Store::Search_Func
-   {
-   public:
-      bool match(const X509_Certificate& cert) const;
-      SKID_Match(const MemoryRegion<byte>& s) : skid(s) {}
-   private:
-      MemoryVector<byte> skid;
-   };
+std::function<bool (const X509_Certificate&)>
+by_skid(const MemoryRegion<byte>& subject_key_id);
+
+}
 
 }
 
diff --git a/src/cert/x509/x509opt.cpp b/src/cert/x509/x509opt.cpp
index c6421d9ca..8d235ad5d 100644
--- a/src/cert/x509/x509opt.cpp
+++ b/src/cert/x509/x509opt.cpp
@@ -8,7 +8,7 @@
 #include <botan/x509self.h>
 #include <botan/oids.h>
 #include <botan/parsing.h>
-#include <botan/time.h>
+#include <chrono>
 
 namespace Botan {
 
@@ -78,16 +78,16 @@ void X509_Cert_Options::sanity_check() const
 * Initialize the certificate options
 */
 X509_Cert_Options::X509_Cert_Options(const std::string& initial_opts,
-                                     u32bit expiration_time_in_seconds)
+                                     u32bit expiration_time)
    {
    is_CA = false;
    path_limit = 0;
    constraints = NO_CONSTRAINTS;
 
-   const u32bit now = system_time();
+   auto now = std::chrono::system_clock::now();
 
    start = X509_Time(now);
-   end = X509_Time(now + expiration_time_in_seconds);
+   end = X509_Time(now + std::chrono::seconds(expiration_time));
 
    if(initial_opts == "")
       return;
diff --git a/src/cert/x509/x509self.cpp b/src/cert/x509/x509self.cpp
index f915c6ff5..df31897bb 100644
--- a/src/cert/x509/x509self.cpp
+++ b/src/cert/x509/x509self.cpp
@@ -73,7 +73,7 @@ X509_Certificate create_self_signed_cert(const X509_Cert_Options& opts,
    AlternativeName subject_alt;
 
    MemoryVector<byte> pub_key = shared_setup(opts, key);
-   std::auto_ptr<PK_Signer> signer(choose_sig_format(key, hash_fn, sig_algo));
+   std::unique_ptr<PK_Signer> signer(choose_sig_format(key, hash_fn, sig_algo));
    load_info(opts, subject_dn, subject_alt);
 
    Key_Constraints constraints;
@@ -112,7 +112,7 @@ PKCS10_Request create_cert_req(const X509_Cert_Options& opts,
    AlternativeName subject_alt;
 
    MemoryVector<byte> pub_key = shared_setup(opts, key);
-   std::auto_ptr<PK_Signer> signer(choose_sig_format(key, hash_fn, sig_algo));
+   std::unique_ptr<PK_Signer> signer(choose_sig_format(key, hash_fn, sig_algo));
    load_info(opts, subject_dn, subject_alt);
 
    const u32bit PKCS10_VERSION = 0;
diff --git a/src/cert/x509/x509stor.cpp b/src/cert/x509/x509stor.cpp
index e9e8f4575..80507c1dd 100644
--- a/src/cert/x509/x509stor.cpp
+++ b/src/cert/x509/x509stor.cpp
@@ -10,8 +10,8 @@
 #include <botan/pubkey.h>
 #include <botan/look_pk.h>
 #include <botan/oids.h>
-#include <botan/time.h>
 #include <algorithm>
+#include <chrono>
 #include <memory>
 
 namespace Botan {
@@ -22,13 +22,14 @@ namespace {
 * Do a validity check
 */
 s32bit validity_check(const X509_Time& start, const X509_Time& end,
-                      u64bit current_time, u32bit slack)
+                      const std::chrono::system_clock::time_point& now,
+                      std::chrono::seconds slack)
    {
    const s32bit NOT_YET_VALID = -1, VALID_TIME = 0, EXPIRED = 1;
 
-   if(start.cmp(current_time + slack) > 0)
+   if(start.cmp(now + slack) > 0)
       return NOT_YET_VALID;
-   if(end.cmp(current_time - slack) < 0)
+   if(end.cmp(now - slack) < 0)
       return EXPIRED;
    return VALID_TIME;
    }
@@ -169,7 +170,8 @@ bool X509_Store::CRL_Data::operator<(const X509_Store::CRL_Data& other) const
 /*
 * X509_Store Constructor
 */
-X509_Store::X509_Store(u32bit slack, u32bit cache_timeout)
+X509_Store::X509_Store(std::chrono::seconds slack,
+                       std::chrono::seconds cache_timeout)
    {
    revoked_info_valid = true;
 
@@ -212,10 +214,11 @@ X509_Code X509_Store::validate_cert(const X509_Certificate& cert,
    if(chaining_result != VERIFIED)
       return chaining_result;
 
-   const u64bit current_time = system_time();
+   auto current_time = std::chrono::system_clock::now();
 
    s32bit time_check = validity_check(cert.start_time(), cert.end_time(),
                                       current_time, time_slack);
+
    if(time_check < 0)      return CERT_NOT_YET_VALID;
    else if(time_check > 0) return CERT_HAS_EXPIRED;
 
@@ -380,8 +383,8 @@ X509_Code X509_Store::check_sig(const Cert_Info& cert_info,
 */
 X509_Code X509_Store::check_sig(const X509_Object& object, Public_Key* key)
    {
-   std::auto_ptr<Public_Key> pub_key(key);
-   std::auto_ptr<PK_Verifier> verifier;
+   std::unique_ptr<Public_Key> pub_key(key);
+   std::unique_ptr<PK_Verifier> verifier;
 
    try {
       std::vector<std::string> sig_info =
@@ -464,12 +467,12 @@ bool X509_Store::is_revoked(const X509_Certificate& cert) const
 * Retrieve all the certificates in the store
 */
 std::vector<X509_Certificate>
-X509_Store::get_certs(const Search_Func& search) const
+X509_Store::get_certs(std::function<bool (const X509_Certificate&)> pred) const
    {
    std::vector<X509_Certificate> found_certs;
    for(u32bit j = 0; j != certs.size(); ++j)
       {
-      if(search.match(certs[j].cert))
+      if(pred(certs[j].cert))
          found_certs.push_back(certs[j].cert);
       }
    return found_certs;
@@ -563,8 +566,10 @@ void X509_Store::add_trusted_certs(DataSource& source)
 */
 X509_Code X509_Store::add_crl(const X509_CRL& crl)
    {
+   auto current_time = std::chrono::system_clock::now();
+
    s32bit time_check = validity_check(crl.this_update(), crl.next_update(),
-                                      system_time(), time_slack);
+                                      current_time, time_slack);
 
    if(time_check < 0)      return CRL_NOT_YET_VALID;
    else if(time_check > 0) return CRL_HAS_EXPIRED;
@@ -603,8 +608,7 @@ X509_Code X509_Store::add_crl(const X509_CRL& crl)
       revoked_info.serial = revoked_certs[j].serial_number();
       revoked_info.auth_key_id = crl.authority_key_id();
 
-      std::vector<CRL_Data>::iterator p =
-         std::find(revoked.begin(), revoked.end(), revoked_info);
+      auto p = std::find(revoked.begin(), revoked.end(), revoked_info);
 
       if(revoked_certs[j].reason_code() == REMOVE_FROM_CRL)
          {
@@ -642,8 +646,8 @@ X509_Store::Cert_Info::Cert_Info(const X509_Certificate& c,
                                  bool t) : cert(c), trusted(t)
    {
    checked = false;
+   last_checked = std::chrono::system_clock::time_point::min();
    result = UNKNOWN_X509_ERROR;
-   last_checked = 0;
    }
 
 /*
@@ -661,9 +665,9 @@ X509_Code X509_Store::Cert_Info::verify_result() const
 */
 void X509_Store::Cert_Info::set_result(X509_Code code) const
    {
-   result = code;
-   last_checked = system_time();
    checked = true;
+   last_checked = std::chrono::system_clock::now();
+   result = code;
    }
 
 /*
@@ -677,16 +681,16 @@ bool X509_Store::Cert_Info::is_trusted() const
 /*
 * Check if this certificate has been verified
 */
-bool X509_Store::Cert_Info::is_verified(u32bit timeout) const
+bool X509_Store::Cert_Info::is_verified(std::chrono::seconds timeout) const
    {
    if(!checked)
       return false;
    if(result != VERIFIED && result != CERT_NOT_YET_VALID)
       return true;
 
-   const u64bit current_time = system_time();
+   auto now = std::chrono::system_clock::now();
 
-   if(current_time > last_checked + timeout)
+   if(now > last_checked + timeout)
       checked = false;
 
    return checked;
diff --git a/src/cert/x509/x509stor.h b/src/cert/x509/x509stor.h
index 4e6037883..1911c6b6a 100644
--- a/src/cert/x509/x509stor.h
+++ b/src/cert/x509/x509stor.h
@@ -11,6 +11,7 @@
 #include <botan/x509cert.h>
 #include <botan/x509_crl.h>
 #include <botan/certstor.h>
+#include <functional>
 
 namespace Botan {
 
@@ -48,13 +49,6 @@ enum X509_Code {
 class BOTAN_DLL X509_Store
    {
    public:
-      class BOTAN_DLL Search_Func
-         {
-         public:
-            virtual bool match(const X509_Certificate&) const = 0;
-            virtual ~Search_Func() {}
-         };
-
       enum Cert_Usage {
          ANY              = 0x00,
          TLS_SERVER       = 0x01,
@@ -67,7 +61,13 @@ class BOTAN_DLL X509_Store
 
       X509_Code validate_cert(const X509_Certificate&, Cert_Usage = ANY);
 
-      std::vector<X509_Certificate> get_certs(const Search_Func&) const;
+      /**
+      * @param match the matching function
+      * @return list of certs for which match returns true
+      */
+      std::vector<X509_Certificate>
+         get_certs(std::function<bool (const X509_Certificate&)> match) const;
+
       std::vector<X509_Certificate> get_cert_chain(const X509_Certificate&);
       std::string PEM_encode() const;
 
@@ -94,18 +94,22 @@ class BOTAN_DLL X509_Store
 
       static X509_Code check_sig(const X509_Object&, Public_Key*);
 
-      X509_Store(u32bit time_slack = 24*60*60,
-                 u32bit cache_results = 30*60);
+      X509_Store& operator=(const X509_Store&) = delete;
+
+      /**
+      * @param slack the slack in checking validity times against current clock
+      * @param cache how long to cache validation results before rechecking
+      */
+      X509_Store(std::chrono::seconds slack = std::chrono::seconds(24*60*60),
+                 std::chrono::seconds cache = std::chrono::seconds(30*60));
 
       X509_Store(const X509_Store&);
       ~X509_Store();
    private:
-      X509_Store& operator=(const X509_Store&) { return (*this); }
-
       class BOTAN_DLL Cert_Info
          {
          public:
-            bool is_verified(u32bit timeout) const;
+            bool is_verified(std::chrono::seconds cache_timeout) const;
             bool is_trusted() const;
             X509_Code verify_result() const;
             void set_result(X509_Code) const;
@@ -116,7 +120,7 @@ class BOTAN_DLL X509_Store
          private:
             mutable bool checked;
             mutable X509_Code result;
-            mutable u64bit last_checked;
+            mutable std::chrono::system_clock::time_point last_checked;
          };
 
       u32bit find_cert(const X509_DN&, const MemoryRegion<byte>&) const;
@@ -131,10 +135,12 @@ class BOTAN_DLL X509_Store
       bool is_revoked(const X509_Certificate&) const;
 
       static const u32bit NO_CERT_FOUND = 0xFFFFFFFF;
+
       std::vector<Cert_Info> certs;
       std::vector<CRL_Data> revoked;
       std::vector<Certificate_Store*> stores;
-      u32bit time_slack, validation_cache_timeout;
+
+      std::chrono::seconds time_slack, validation_cache_timeout;
       mutable bool revoked_info_valid;
    };