propagate from branch 'net.randombit.botan' (head c1db52e38b60afbc6549af5222d6e10b1b9730dd)

            to branch 'net.randombit.botan.c++0x' (head e56dfbfe6bffbd5b4e52b115549d885c5fd04586)

9 files changed, 76 insertions, 67 deletions

diff --git a/checks/bench.cpp b/checks/bench.cpp
index cfb44070d..9b917c99d 100644
--- a/checks/bench.cpp
+++ b/checks/bench.cpp
@@ -14,7 +14,10 @@
 #include <botan/engine.h>
 #include <botan/parsing.h>
 #include <botan/symkey.h>
-#include <botan/time.h>
+
+#include <chrono>
+
+typedef std::chrono::high_resolution_clock benchmark_clock;
 
 #include "common.h"
 #include "bench.h"
@@ -206,17 +209,23 @@ bool bench_algo(const std::string& algo,
          Botan::Pipe pipe(filt, new Botan::BitBucket);
          pipe.start_msg();
 
-         const u64bit start = Botan::get_nanoseconds_clock();
-         u64bit nanoseconds_used = 0;
+         std::chrono::nanoseconds max_time(nanoseconds_max);
+         std::chrono::nanoseconds time_used(0);
+
+         auto start = benchmark_clock::now();
+
          u64bit reps = 0;
 
-         while(nanoseconds_used < nanoseconds_max)
+         while(time_used < max_time)
             {
             pipe.write(&buf[0], buf.size());
             ++reps;
-            nanoseconds_used = Botan::get_nanoseconds_clock() - start;
+            time_used = benchmark_clock::now() - start;
             }
 
+         u64bit nanoseconds_used =
+            std::chrono::duration_cast<std::chrono::nanoseconds>(time_used).count();
+
          double mbytes_per_second =
             (953.67 * (buf.size() * reps)) / nanoseconds_used;
 
diff --git a/checks/cvc_tests.cpp b/checks/cvc_tests.cpp
index 8ca00e048..7904a2700 100644
--- a/checks/cvc_tests.cpp
+++ b/checks/cvc_tests.cpp
@@ -163,8 +163,8 @@ void test_enc_gen_selfsigned(RandomNumberGenerator& rng)
       }
    CHECK(ill_date_exc2);
    //cout << "readable = '" << cert_in.get_ced().readable_string() << "'\n";
-   std::auto_ptr<Public_Key> p_pk = cert_in.subject_public_key();
-   //auto_ptr<ECDSA_PublicKey> ecdsa_pk = dynamic_cast<auto_ptr<ECDSA_PublicKey> >(p_pk);
+   std::unique_ptr<Public_Key> p_pk = cert_in.subject_public_key();
+   //unique_ptr<ECDSA_PublicKey> ecdsa_pk = dynamic_cast<auto_ptr<ECDSA_PublicKey> >(p_pk);
    ECDSA_PublicKey* p_ecdsa_pk = dynamic_cast<ECDSA_PublicKey*>(p_pk.get());
    // let´s see if encoding is truely implicitca, because this is what the key should have
    // been set to when decoding (see above)(because it has no domain params):
@@ -182,7 +182,7 @@ void test_enc_gen_selfsigned(RandomNumberGenerator& rng)
    CHECK(exc);
    // set them and try again
    //cert_in.set_domain_parameters(dom_pars);
-   std::auto_ptr<Public_Key> p_pk2 = cert_in.subject_public_key();
+   std::unique_ptr<Public_Key> p_pk2 = cert_in.subject_public_key();
    ECDSA_PublicKey* p_ecdsa_pk2 = dynamic_cast<ECDSA_PublicKey*>(p_pk2.get());
    p_ecdsa_pk2->set_domain_parameters(dom_pars);
    CHECK(p_ecdsa_pk2->domain_parameters().get_order() == dom_pars.get_order());
@@ -213,7 +213,7 @@ void test_enc_gen_req(RandomNumberGenerator& rng)
    // read and check signature...
    EAC1_1_Req req_in(TEST_DATA_DIR "/my_cv_req.ber");
    //req_in.set_domain_parameters(dom_pars);
-   std::auto_ptr<Public_Key> p_pk = req_in.subject_public_key();
+   std::unique_ptr<Public_Key> p_pk = req_in.subject_public_key();
    ECDSA_PublicKey* p_ecdsa_pk = dynamic_cast<ECDSA_PublicKey*>(p_pk.get());
    p_ecdsa_pk->set_domain_parameters(dom_pars);
    CHECK(p_ecdsa_pk->domain_parameters().get_order() == dom_pars.get_order());
@@ -228,7 +228,7 @@ void test_cvc_req_ext(RandomNumberGenerator&)
    EAC1_1_Req req_in(TEST_DATA_DIR "/DE1_flen_chars_cvcRequest_ECDSA.der");
    EC_Domain_Params dom_pars(get_EC_Dom_Pars_by_oid("1.3.36.3.3.2.8.1.1.5")); // "german curve"
    //req_in.set_domain_parameters(dom_pars);
-   std::auto_ptr<Public_Key> p_pk = req_in.subject_public_key();
+   std::unique_ptr<Public_Key> p_pk = req_in.subject_public_key();
    ECDSA_PublicKey* p_ecdsa_pk = dynamic_cast<ECDSA_PublicKey*>(p_pk.get());
    p_ecdsa_pk->set_domain_parameters(dom_pars);
    CHECK(p_ecdsa_pk->domain_parameters().get_order() == dom_pars.get_order());
@@ -350,8 +350,7 @@ void test_eac_time(RandomNumberGenerator&)
    {
    std::cout << "." << std::flush;
 
-   const u64bit current_time = system_time();
-   EAC_Time time(current_time);
+   EAC_Time time(std::chrono::system_clock::now());
    //     std::cout << "time as std::string = " << time.as_string() << std::endl;
    EAC_Time sooner("", ASN1_Tag(99));
    //X509_Time sooner("", ASN1_Tag(99));
@@ -390,11 +389,11 @@ void test_ver_cvca(RandomNumberGenerator&)
 
    EAC1_1_CVC req_in(TEST_DATA_DIR "/cvca01.cv.crt");
 
-   //auto_ptr<ECDSA_PublicKey> ecdsa_pk = dynamic_cast<auto_ptr<ECDSA_PublicKey> >(p_pk);
+   //unique_ptr<ECDSA_PublicKey> ecdsa_pk = dynamic_cast<auto_ptr<ECDSA_PublicKey> >(p_pk);
    //ECDSA_PublicKey* p_ecdsa_pk = dynamic_cast<ECDSA_PublicKey*>(p_pk.get());
    bool exc = false;
 
-   std::auto_ptr<Public_Key> p_pk2 = req_in.subject_public_key();
+   std::unique_ptr<Public_Key> p_pk2 = req_in.subject_public_key();
    ECDSA_PublicKey* p_ecdsa_pk2 = dynamic_cast<ECDSA_PublicKey*>(p_pk2.get());
    bool ver_ec = req_in.check_signature(*p_pk2);
    CHECK_MESSAGE(ver_ec, "could not positively verify correct selfsigned cvca certificate");
@@ -512,7 +511,7 @@ void test_cvc_chain(RandomNumberGenerator& rng)
    CHECK(link12.check_signature(cvca_privk));
    EAC1_1_CVC link12_reloaded(TEST_DATA_DIR "/cvc_chain_link12.cer");
    EAC1_1_CVC cvca1_reloaded(TEST_DATA_DIR "/cvc_chain_cvca.cer");
-   std::auto_ptr<Public_Key> cvca1_rel_pk = cvca1_reloaded.subject_public_key();
+   std::unique_ptr<Public_Key> cvca1_rel_pk = cvca1_reloaded.subject_public_key();
    CHECK(link12_reloaded.check_signature(*cvca1_rel_pk));
 
    // create first round dvca-req
@@ -542,7 +541,7 @@ void test_cvc_chain(RandomNumberGenerator& rng)
 
    // verify the ado and sign the request too
 
-   std::auto_ptr<Public_Key> ap_pk = dvca_cert1.subject_public_key();
+   std::unique_ptr<Public_Key> ap_pk = dvca_cert1.subject_public_key();
    ECDSA_PublicKey* cert_pk = dynamic_cast<ECDSA_PublicKey*>(ap_pk.get());
 
    cert_pk->set_domain_parameters(dom_pars);
diff --git a/checks/ec_tests.cpp b/checks/ec_tests.cpp
index 0c814a136..637e3d988 100644
--- a/checks/ec_tests.cpp
+++ b/checks/ec_tests.cpp
@@ -679,11 +679,11 @@ void test_enc_dec_uncompressed_521_prime_too_large()
    BigInt bi_b_secp = BigInt::decode ( sv_b_secp.begin(), sv_b_secp.size() );
 
    CurveGFp secp521r1 (bi_p_secp, bi_a_secp, bi_b_secp);
-   std::auto_ptr<PointGFp> p_G;
+   std::unique_ptr<PointGFp> p_G;
    bool exc = false;
    try
       {
-      p_G = std::auto_ptr<PointGFp>(new PointGFp(OS2ECP ( sv_G_secp_uncomp, secp521r1)));
+      p_G = std::unique_ptr<PointGFp>(new PointGFp(OS2ECP ( sv_G_secp_uncomp, secp521r1)));
       p_G->check_invariants();
       }
    catch (std::exception e)
diff --git a/checks/ecdsa.cpp b/checks/ecdsa.cpp
index f9dcf5597..862677e63 100644
--- a/checks/ecdsa.cpp
+++ b/checks/ecdsa.cpp
@@ -70,7 +70,7 @@ void test_hash_larger_than_n(RandomNumberGenerator& rng)
          {
          format = "EMSA1_BSI(SHA-1)";
          }
-      std::auto_ptr<PK_Signer> pk_signer(get_pk_signer(priv_key, format));
+      std::unique_ptr<PK_Signer> pk_signer(get_pk_signer(priv_key, format));
       SecureVector<byte> signature;
       bool sig_exc = false;
       try
@@ -93,7 +93,7 @@ void test_hash_larger_than_n(RandomNumberGenerator& rng)
 
       if(i==0) // makes no sense to check for sha224
          {
-         std::auto_ptr<PK_Verifier> pk_verifier(get_pk_verifier(priv_key, format));
+         std::unique_ptr<PK_Verifier> pk_verifier(get_pk_verifier(priv_key, format));
          bool ver = pk_verifier->verify_message(message, signature);
          CHECK(ver);
          }
@@ -103,10 +103,10 @@ void test_hash_larger_than_n(RandomNumberGenerator& rng)
    // now check that verification alone fails
 
    // sign it with the normal EMSA1
-   std::auto_ptr<PK_Signer> pk_signer(get_pk_signer(priv_key, "EMSA1(SHA-224)"));
+   std::unique_ptr<PK_Signer> pk_signer(get_pk_signer(priv_key, "EMSA1(SHA-224)"));
    SecureVector<byte> signature = pk_signer->sign_message(message, rng);
 
-   std::auto_ptr<PK_Verifier> pk_verifier(get_pk_verifier(priv_key, "EMSA1_BSI(SHA-224)"));
+   std::unique_ptr<PK_Verifier> pk_verifier(get_pk_verifier(priv_key, "EMSA1_BSI(SHA-224)"));
 
    // verify against EMSA1_BSI
    // we make sure it doesn't fail because of the invalid signature,
@@ -156,7 +156,7 @@ void test_decode_ecdsa_X509()
    CHECK_MESSAGE(to_hex(cert.authority_key_id()) == "0096452DE588F966C4CCDF161DD1F3F5341B71E7", "error reading authority key id from x509 ecdsa certificate");
    CHECK_MESSAGE(to_hex(cert.subject_key_id()) == "0096452DE588F966C4CCDF161DD1F3F5341B71E7", "error reading Subject key id from x509 ecdsa certificate");
 
-   std::auto_ptr<X509_PublicKey> pubkey(cert.subject_public_key());
+   std::unique_ptr<X509_PublicKey> pubkey(cert.subject_public_key());
    bool ver_ec = cert.check_signature(*pubkey);
    CHECK_MESSAGE(ver_ec, "could not positively verify correct selfsigned x509-ecdsa certificate");
    }
@@ -168,7 +168,7 @@ void test_decode_ver_link_SHA256()
    X509_Certificate root_cert(TEST_DATA_DIR "/root2_SHA256.cer");
    X509_Certificate link_cert(TEST_DATA_DIR "/link_SHA256.cer");
 
-   std::auto_ptr<X509_PublicKey> pubkey(root_cert.subject_public_key());
+   std::unique_ptr<X509_PublicKey> pubkey(root_cert.subject_public_key());
    bool ver_ec = link_cert.check_signature(*pubkey);
    CHECK_MESSAGE(ver_ec, "could not positively verify correct SHA256 link x509-ecdsa certificate");
 
@@ -180,7 +180,7 @@ void test_decode_ver_link_SHA1()
    X509_Certificate root_cert(TEST_DATA_DIR "/root_SHA1.163.crt");
    X509_Certificate link_cert(TEST_DATA_DIR "/link_SHA1.166.crt");
 
-   std::auto_ptr<X509_PublicKey> pubkey(root_cert.subject_public_key());
+   std::unique_ptr<X509_PublicKey> pubkey(root_cert.subject_public_key());
    bool ver_ec = link_cert.check_signature(*pubkey);
    CHECK_MESSAGE(ver_ec, "could not positively verify correct SHA1 link x509-ecdsa certificate");
    }
@@ -223,8 +223,8 @@ bool test_ec_sign(RandomNumberGenerator& rng)
       ECDSA_PrivateKey priv_key(rng, dom_pars);
       std::string pem_encoded_key = PKCS8::PEM_encode(priv_key);
 
-      std::auto_ptr<PK_Signer> signer(get_pk_signer(priv_key, "EMSA1(SHA-224)"));
-      std::auto_ptr<PK_Verifier> verifier(get_pk_verifier(priv_key, "EMSA1(SHA-224)"));
+      std::unique_ptr<PK_Signer> signer(get_pk_signer(priv_key, "EMSA1(SHA-224)"));
+      std::unique_ptr<PK_Verifier> verifier(get_pk_verifier(priv_key, "EMSA1(SHA-224)"));
 
       for(u32bit i = 0; i != 256; ++i)
          signer->update((byte)i);
@@ -305,11 +305,11 @@ void test_create_and_verify(RandomNumberGenerator& rng)
    std::ofstream priv_key(TEST_DATA_DIR "/dompar_private.pkcs8.pem");
    priv_key << PKCS8::PEM_encode(key);
 
-   std::auto_ptr<PKCS8_PrivateKey> loaded_key(PKCS8::load_key(TEST_DATA_DIR "/wo_dompar_private.pkcs8.pem", rng));
+   std::unique_ptr<PKCS8_PrivateKey> loaded_key(PKCS8::load_key(TEST_DATA_DIR "/wo_dompar_private.pkcs8.pem", rng));
    ECDSA_PrivateKey* loaded_ec_key = dynamic_cast<ECDSA_PrivateKey*>(loaded_key.get());
    CHECK_MESSAGE(loaded_ec_key, "the loaded key could not be converted into an ECDSA_PrivateKey");
 
-   std::auto_ptr<PKCS8_PrivateKey> loaded_key_1(PKCS8::load_key(TEST_DATA_DIR "/rsa_private.pkcs8.pem", rng));
+   std::unique_ptr<PKCS8_PrivateKey> loaded_key_1(PKCS8::load_key(TEST_DATA_DIR "/rsa_private.pkcs8.pem", rng));
    ECDSA_PrivateKey* loaded_rsa_key = dynamic_cast<ECDSA_PrivateKey*>(loaded_key_1.get());
    CHECK_MESSAGE(!loaded_rsa_key, "the loaded key is ECDSA_PrivateKey -> shouldn't be, is a RSA-Key");
 
@@ -342,7 +342,7 @@ void test_create_and_verify(RandomNumberGenerator& rng)
    std::string key_odd_oid_str = PKCS8::PEM_encode(key_odd_oid);
 
    DataSource_Memory key_data_src(key_odd_oid_str);
-   std::auto_ptr<PKCS8_PrivateKey> loaded_key2(PKCS8::load_key(key_data_src, rng));
+   std::unique_ptr<PKCS8_PrivateKey> loaded_key2(PKCS8::load_key(key_data_src, rng));
 
    if(!dynamic_cast<ECDSA_PrivateKey*>(loaded_key.get()))
       {
@@ -412,7 +412,7 @@ void test_read_pkcs8(RandomNumberGenerator& rng)
    std::cout << "." << std::flush;
    try
       {
-      std::auto_ptr<PKCS8_PrivateKey> loaded_key(PKCS8::load_key(TEST_DATA_DIR "/wo_dompar_private.pkcs8.pem", rng));
+      std::unique_ptr<PKCS8_PrivateKey> loaded_key(PKCS8::load_key(TEST_DATA_DIR "/wo_dompar_private.pkcs8.pem", rng));
       ECDSA_PrivateKey* loaded_ec_key = dynamic_cast<ECDSA_PrivateKey*>(loaded_key.get());
       CHECK_MESSAGE(loaded_ec_key, "the loaded key could not be converted into an ECDSA_PrivateKey");
 
@@ -423,7 +423,7 @@ void test_read_pkcs8(RandomNumberGenerator& rng)
       bool ver_success = loaded_ec_key->verify(sv_message.begin(), sv_message.size(), signature.begin(), signature.size());
       CHECK_MESSAGE(ver_success, "generated signature could not be verified positively");
 
-      std::auto_ptr<PKCS8_PrivateKey> loaded_key_nodp(PKCS8::load_key(TEST_DATA_DIR "/nodompar_private.pkcs8.pem", rng));
+      std::unique_ptr<PKCS8_PrivateKey> loaded_key_nodp(PKCS8::load_key(TEST_DATA_DIR "/nodompar_private.pkcs8.pem", rng));
       // anew in each test with unregistered domain-parameters
       ECDSA_PrivateKey* loaded_ec_key_nodp = dynamic_cast<ECDSA_PrivateKey*>(loaded_key_nodp.get());
       CHECK_MESSAGE(loaded_ec_key_nodp, "the loaded key could not be converted into an ECDSA_PrivateKey");
@@ -434,7 +434,7 @@ void test_read_pkcs8(RandomNumberGenerator& rng)
       CHECK_MESSAGE(ver_success_nodp, "generated signature could not be verified positively (no_dom)");
       try
          {
-         std::auto_ptr<PKCS8_PrivateKey> loaded_key_withdp(PKCS8::load_key(TEST_DATA_DIR "/withdompar_private.pkcs8.pem", rng));
+         std::unique_ptr<PKCS8_PrivateKey> loaded_key_withdp(PKCS8::load_key(TEST_DATA_DIR "/withdompar_private.pkcs8.pem", rng));
 
          std::cout << "Unexpected success: loaded key with unknown OID\n";
          }
@@ -453,7 +453,7 @@ void test_cp_and_as_ctors(RandomNumberGenerator& rng)
    {
    std::cout << "." << std::flush;
 
-   std::auto_ptr<PKCS8_PrivateKey> loaded_key(PKCS8::load_key(TEST_DATA_DIR "/wo_dompar_private.pkcs8.pem", rng));
+   std::unique_ptr<PKCS8_PrivateKey> loaded_key(PKCS8::load_key(TEST_DATA_DIR "/wo_dompar_private.pkcs8.pem", rng));
    ECDSA_PrivateKey* loaded_ec_key = dynamic_cast<ECDSA_PrivateKey*>(loaded_key.get());
    CHECK_MESSAGE(loaded_ec_key, "the loaded key could not be converted into an ECDSA_PrivateKey");
    std::string str_message = ("12345678901234567890abcdef12");
@@ -489,7 +489,7 @@ void test_non_init_ecdsa_keys(RandomNumberGenerator& rng)
    {
    std::cout << "." << std::flush;
 
-   std::auto_ptr<PKCS8_PrivateKey> loaded_key(PKCS8::load_key(TEST_DATA_DIR "/wo_dompar_private.pkcs8.pem", rng));
+   std::unique_ptr<PKCS8_PrivateKey> loaded_key(PKCS8::load_key(TEST_DATA_DIR "/wo_dompar_private.pkcs8.pem", rng));
    //ECDSA_PrivateKey* loaded_ec_key = dynamic_cast<ECDSA_PrivateKey*>(loaded_key.get());
    //CHECK_MESSAGE(loaded_ec_key, "the loaded key could not be converted into an ECDSA_PrivateKey");
    std::string str_message = ("12345678901234567890abcdef12");
diff --git a/checks/eckaeg.cpp b/checks/eckaeg.cpp
index e5de2e425..3f5443607 100644
--- a/checks/eckaeg.cpp
+++ b/checks/eckaeg.cpp
@@ -102,7 +102,7 @@ void test_eckaeg_some_dp(RandomNumberGenerator& rng)
       Botan::EC_Domain_Params dom_pars(Botan::get_EC_Dom_Pars_by_oid(oids[i]));
       Botan::ECKAEG_PrivateKey private_a(rng, dom_pars);
       Botan::ECKAEG_PublicKey public_a = private_a;
-      /*auto_ptr<Botan::X509_Encoder> x509_key_enc = public_a.x509_encoder();
+      /*unique_ptr<Botan::X509_Encoder> x509_key_enc = public_a.x509_encoder();
       Botan::MemoryVector<Botan::byte> enc_key_a = Botan::DER_Encoder()
       .start_cons(Botan::SEQUENCE)
       .encode(x509_key_enc->alg_id())
diff --git a/checks/pk.cpp b/checks/pk.cpp
index 07e6aeb10..b50ce17da 100644
--- a/checks/pk.cpp
+++ b/checks/pk.cpp
@@ -184,7 +184,7 @@ u32bit validate_rsa_enc_pkcs8(const std::string& algo,
    DataSource_Memory keysource(reinterpret_cast<const byte*>(str[0].c_str()),
                                str[0].length());
 
-   std::auto_ptr<Private_Key> privkey(PKCS8::load_key(keysource, rng, pass));
+   std::unique_ptr<Private_Key> privkey(PKCS8::load_key(keysource, rng, pass));
 
    RSA_PrivateKey* rsapriv = dynamic_cast<RSA_PrivateKey*>(privkey.get());
    if(!rsapriv)
@@ -303,7 +303,7 @@ u32bit validate_rsa_ver(const std::string& algo,
 
    std::string emsa = algo.substr(6, std::string::npos);
 
-   std::auto_ptr<PK_Verifier> v(get_pk_verifier(key, emsa));
+   std::unique_ptr<PK_Verifier> v(get_pk_verifier(key, emsa));
 
    SecureVector<byte> msg = decode_hex(str[2]);
    SecureVector<byte> sig = decode_hex(str[3]);
@@ -326,7 +326,7 @@ u32bit validate_rsa_ver_x509(const std::string& algo,
    DataSource_Memory keysource(reinterpret_cast<const byte*>(str[0].c_str()),
                                str[0].length());
 
-   std::auto_ptr<Public_Key> key(X509::load_key(keysource));
+   std::unique_ptr<Public_Key> key(X509::load_key(keysource));
 
    RSA_PublicKey* rsakey = dynamic_cast<RSA_PublicKey*>(key.get());
 
@@ -335,7 +335,7 @@ u32bit validate_rsa_ver_x509(const std::string& algo,
 
    std::string emsa = algo.substr(11, std::string::npos);
 
-   std::auto_ptr<PK_Verifier> v(get_pk_verifier(*rsakey, emsa));
+   std::unique_ptr<PK_Verifier> v(get_pk_verifier(*rsakey, emsa));
 
    SecureVector<byte> msg = decode_hex(str[1]);
    SecureVector<byte> sig = decode_hex(str[2]);
@@ -361,7 +361,7 @@ u32bit validate_rw_ver(const std::string& algo,
 
    std::string emsa = algo.substr(5, std::string::npos);
 
-   std::auto_ptr<PK_Verifier> v(get_pk_verifier(key, emsa));
+   std::unique_ptr<PK_Verifier> v(get_pk_verifier(key, emsa));
 
    SecureVector<byte> msg = decode_hex(str[2]);
    SecureVector<byte> sig = decode_hex(str[3]);
@@ -417,7 +417,7 @@ u32bit validate_dsa_sig(const std::string& algo,
    DataSource_Memory keysource(reinterpret_cast<const byte*>(str[0].c_str()),
                                str[0].length());
 
-   std::auto_ptr<Private_Key> privkey(PKCS8::load_key(keysource, rng, pass));
+   std::unique_ptr<Private_Key> privkey(PKCS8::load_key(keysource, rng, pass));
 
    DSA_PrivateKey* dsapriv = dynamic_cast<DSA_PrivateKey*>(privkey.get());
    if(!dsapriv)
@@ -449,7 +449,7 @@ u32bit validate_dsa_ver(const std::string& algo,
 
 
 #if defined(BOTAN_HAS_DSA)
-   std::auto_ptr<Public_Key> key(X509::load_key(keysource));
+   std::unique_ptr<Public_Key> key(X509::load_key(keysource));
 
    DSA_PublicKey* dsakey = dynamic_cast<DSA_PublicKey*>(key.get());
 
@@ -458,7 +458,7 @@ u32bit validate_dsa_ver(const std::string& algo,
 
    std::string emsa = algo.substr(7, std::string::npos);
 
-   std::auto_ptr<PK_Verifier> v(get_pk_verifier(*dsakey, emsa));
+   std::unique_ptr<PK_Verifier> v(get_pk_verifier(*dsakey, emsa));
 
    SecureVector<byte> msg = decode_hex(str[1]);
    SecureVector<byte> sig = decode_hex(str[2]);
diff --git a/checks/pk_bench.cpp b/checks/pk_bench.cpp
index a0ea1d1d3..4a70a5899 100644
--- a/checks/pk_bench.cpp
+++ b/checks/pk_bench.cpp
@@ -211,17 +211,17 @@ void benchmark_rsa(RandomNumberGenerator& rng,
          while(verify_timer.seconds() < seconds ||
                sig_timer.seconds() < seconds)
             {
-            std::auto_ptr<PK_Encryptor> enc(get_pk_encryptor(key, enc_padding));
-            std::auto_ptr<PK_Decryptor> dec(get_pk_decryptor(key, enc_padding));
+            std::unique_ptr<PK_Encryptor> enc(get_pk_encryptor(key, enc_padding));
+            std::unique_ptr<PK_Decryptor> dec(get_pk_decryptor(key, enc_padding));
             benchmark_enc_dec(*enc, *dec, enc_timer, dec_timer, rng, 10000, seconds);
 
-            std::auto_ptr<PK_Signer> sig(get_pk_signer(key, sig_padding));
-            std::auto_ptr<PK_Verifier> ver(get_pk_verifier(key, sig_padding));
+            std::unique_ptr<PK_Signer> sig(get_pk_signer(key, sig_padding));
+            std::unique_ptr<PK_Verifier> ver(get_pk_verifier(key, sig_padding));
             benchmark_sig_ver(*ver, *sig, verify_timer,
                               sig_timer, rng, 10000, seconds);
             }
 
-         const std::string rsa_keylen = "RSA-" + to_string(keylen);
+         const std::string rsa_keylen = "RSA-" + std::to_string(keylen);
 
          report.report(rsa_keylen, keygen_timer);
          report.report(rsa_keylen, verify_timer);
@@ -266,13 +266,13 @@ void benchmark_rw(RandomNumberGenerator& rng,
          RW_PrivateKey key(rng, keylen);
          keygen_timer.stop();
 
-         std::auto_ptr<PK_Signer> sig(get_pk_signer(key, padding));
-         std::auto_ptr<PK_Verifier> ver(get_pk_verifier(key, padding));
+         std::unique_ptr<PK_Signer> sig(get_pk_signer(key, padding));
+         std::unique_ptr<PK_Verifier> ver(get_pk_verifier(key, padding));
 
          benchmark_sig_ver(*ver, *sig, verify_timer, sig_timer, rng, 10000, seconds);
          }
 
-      const std::string nm = "RW-" + to_string(keylen);
+      const std::string nm = "RW-" + std::to_string(keylen);
       report.report(nm, keygen_timer);
       report.report(nm, verify_timer);
       report.report(nm, sig_timer);
@@ -307,7 +307,7 @@ void benchmark_ecdsa(RandomNumberGenerator& rng,
       if(hashbits == 521)
          hashbits = 512;
 
-      const std::string padding = "EMSA1(SHA-" + to_string(hashbits) + ")";
+      const std::string padding = "EMSA1(SHA-" + std::to_string(hashbits) + ")";
 
       Timer keygen_timer("keygen");
       Timer verify_timer(padding + " verify");
@@ -320,14 +320,14 @@ void benchmark_ecdsa(RandomNumberGenerator& rng,
          ECDSA_PrivateKey key(rng, params);
          keygen_timer.stop();
 
-         std::auto_ptr<PK_Signer> sig(get_pk_signer(key, padding));
-         std::auto_ptr<PK_Verifier> ver(get_pk_verifier(key, padding));
+         std::unique_ptr<PK_Signer> sig(get_pk_signer(key, padding));
+         std::unique_ptr<PK_Verifier> ver(get_pk_verifier(key, padding));
 
          benchmark_sig_ver(*ver, *sig, verify_timer,
                            sig_timer, rng, 1000, seconds);
          }
 
-      const std::string nm = "ECDSA-" + to_string(pbits);
+      const std::string nm = "ECDSA-" + std::to_string(pbits);
 
       report.report(nm, keygen_timer);
       report.report(nm, verify_timer);
@@ -393,7 +393,7 @@ void benchmark_eckaeg(RandomNumberGenerator& rng,
             }
          }
 
-      const std::string nm = "ECKAEG-" + to_string(pbits);
+      const std::string nm = "ECKAEG-" + std::to_string(pbits);
       report.report(nm, keygen_timer);
       report.report(nm, kex_timer);
       }
@@ -421,7 +421,7 @@ void benchmark_dsa_nr(RandomNumberGenerator& rng,
       u32bit pbits = to_u32bit(split_on(domains[j], '/')[2]);
       u32bit qbits = (pbits <= 1024) ? 160 : 256;
 
-      const std::string padding = "EMSA1(SHA-" + to_string(qbits) + ")";
+      const std::string padding = "EMSA1(SHA-" + std::to_string(qbits) + ")";
 
       Timer keygen_timer("keygen");
       Timer verify_timer(padding + " verify");
@@ -436,14 +436,14 @@ void benchmark_dsa_nr(RandomNumberGenerator& rng,
          PRIV_KEY_TYPE key(rng, group);
          keygen_timer.stop();
 
-         std::auto_ptr<PK_Signer> sig(get_pk_signer(key, padding));
-         std::auto_ptr<PK_Verifier> ver(get_pk_verifier(key, padding));
+         std::unique_ptr<PK_Signer> sig(get_pk_signer(key, padding));
+         std::unique_ptr<PK_Verifier> ver(get_pk_verifier(key, padding));
 
          benchmark_sig_ver(*ver, *sig, verify_timer,
                            sig_timer, rng, 1000, seconds);
          }
 
-      const std::string nm = algo_name + "-" + to_string(pbits);
+      const std::string nm = algo_name + "-" + std::to_string(pbits);
       report.report(nm, keygen_timer);
       report.report(nm, verify_timer);
       report.report(nm, sig_timer);
@@ -606,13 +606,13 @@ void benchmark_elg(RandomNumberGenerator& rng,
          ElGamal_PrivateKey key(rng, group);
          keygen_timer.stop();
 
-         std::auto_ptr<PK_Decryptor> dec(get_pk_decryptor(key, padding));
-         std::auto_ptr<PK_Encryptor> enc(get_pk_encryptor(key, padding));
+         std::unique_ptr<PK_Decryptor> dec(get_pk_decryptor(key, padding));
+         std::unique_ptr<PK_Encryptor> enc(get_pk_encryptor(key, padding));
 
          benchmark_enc_dec(*enc, *dec, enc_timer, dec_timer, rng, 1000, seconds);
          }
 
-      const std::string nm = algo_name + "-" + to_string(pbits);
+      const std::string nm = algo_name + "-" + std::to_string(pbits);
       report.report(nm, keygen_timer);
       report.report(nm, enc_timer);
       report.report(nm, dec_timer);
diff --git a/checks/timer.cpp b/checks/timer.cpp
index 3736a4779..9f3d34607 100644
--- a/checks/timer.cpp
+++ b/checks/timer.cpp
@@ -5,7 +5,7 @@
 */
 
 #include "timer.h"
-#include <botan/time.h>
+#include <chrono>
 #include <iomanip>
 
 Timer::Timer(const std::string& n, u32bit e_mul) :
@@ -38,7 +38,8 @@ void Timer::stop()
 
 u64bit Timer::get_clock()
    {
-   return Botan::get_nanoseconds_clock();
+   auto now = std::chrono::high_resolution_clock::now().time_since_epoch();
+   return std::chrono::duration_cast<std::chrono::nanoseconds>(now).count();
    }
 
 std::ostream& operator<<(std::ostream& out, Timer& timer)
diff --git a/checks/x509.cpp b/checks/x509.cpp
index 8b7ce7d47..3a48f57f9 100644
--- a/checks/x509.cpp
+++ b/checks/x509.cpp
@@ -40,7 +40,7 @@ namespace {
 
 u64bit key_id(const Public_Key* key)
    {
-   std::auto_ptr<X509_Encoder> encoder(key->x509_encoder());
+   std::unique_ptr<X509_Encoder> encoder(key->x509_encoder());
    if(!encoder.get())
       throw Internal_Error("Public_Key:key_id: No encoder found");