Move unittests' RSA pregen code into a new file, and improve.

This patch moves the pregenerated RSA key logic into a new
testing_rsakeys.c.

Also, it adds support for RSA2048, since the link handshake tests
want that.

Also, it includes pregenerated keys, rather than trying to actually
generate the keys at startup, since generating even a small handful
of RSA2048 keys makes for an annoying delay.

src/test/include.am

@@ -128,6 +128,7 @@ src_test_test_SOURCES = \
 	src/test/test_helpers.c \
 	src/test/test_dns.c \
 	src/test/testing_common.c \
+	src/test/testing_rsakeys.c \
 	src/ext/tinytest.c
 
 src_test_test_slow_SOURCES = \
@@ -135,6 +136,7 @@ src_test_test_slow_SOURCES = \
 	src/test/test_crypto_slow.c \
 	src/test/test_util_slow.c \
 	src/test/testing_common.c \
+	src/test/testing_rsakeys.c \
 	src/ext/tinytest.c
 
 src_test_test_memwipe_SOURCES = \

src/test/test.h

@@ -74,6 +74,8 @@
 
 const char *get_fname(const char *name);
 struct crypto_pk_t *pk_generate(int idx);
+void init_pregenerated_keys(void);
+void free_pregenerated_keys(void);
 
 #define US2_CONCAT_2__(a, b) a ## __ ## b
 #define US_CONCAT_2__(a, b) a ## _ ## b

src/test/testing_common.c

@@ -155,65 +155,6 @@ remove_directory(void)
   rm_rf(temp_dir);
 }
 
-/** Define this if unit tests spend too much time generating public keys*/
-#define CACHE_GENERATED_KEYS
-
-#define N_PREGEN_KEYS 11
-static crypto_pk_t *pregen_keys[N_PREGEN_KEYS];
-static int next_key_idx;
-
-/** Generate and return a new keypair for use in unit tests.  If we're using
- * the key cache optimization, we might reuse keys. "idx" is ignored.
- * Our only guarantee is that we won't reuse a key till this function has been
- * called several times. The order in which keys are returned is slightly
- * randomized, so that tests that depend on a particular order will not be
- * reliable. */
-crypto_pk_t *
-pk_generate(int idx)
-{
-  (void) idx;
-#ifdef CACHE_GENERATED_KEYS
-  /* Either skip 1 or 2 keys. */
-  next_key_idx += crypto_rand_int_range(1,3);
-  next_key_idx %= N_PREGEN_KEYS;
-  return crypto_pk_dup_key(pregen_keys[next_key_idx]);
-#else
-  crypto_pk_t *result;
-  int res;
-  result = crypto_pk_new();
-  res = crypto_pk_generate_key__real(result);
-  tor_assert(!res);
-  return result;
-#endif
-}
-
-#ifdef CACHE_GENERATED_KEYS
-static int
-crypto_pk_generate_key_with_bits__get_cached(crypto_pk_t *env, int bits)
-{
-  if (bits != 1024)
-    return crypto_pk_generate_key_with_bits__real(env, bits);
-
-  crypto_pk_t *newkey = pk_generate(0);
-  crypto_pk_assign_(env, newkey);
-  crypto_pk_free(newkey);
-  return 0;
-}
-#endif
-
-/** Free all storage used for the cached key optimization. */
-static void
-free_pregenerated_keys(void)
-{
-  unsigned idx;
-  for (idx = 0; idx < N_PREGEN_KEYS; ++idx) {
-    if (pregen_keys[idx]) {
-      crypto_pk_free(pregen_keys[idx]);
-      pregen_keys[idx] = NULL;
-    }
-  }
-}
-
 static void *
 passthrough_test_setup(const struct testcase_t *testcase)
 {
@@ -339,15 +280,7 @@ main(int c, const char **v)
   }
   tor_set_failed_assertion_callback(an_assertion_failed);
 
-#ifdef CACHE_GENERATED_KEYS
-  for (i = 0; i < N_PREGEN_KEYS; ++i) {
-    pregen_keys[i] = crypto_pk_new();
-    int r = crypto_pk_generate_key(pregen_keys[i]);
-    tor_assert(r == 0);
-  }
-  MOCK(crypto_pk_generate_key_with_bits,
-       crypto_pk_generate_key_with_bits__get_cached);
-#endif
+  init_pregenerated_keys();
 
   atexit(remove_directory);
 

src/test/testing_rsakeys.c

@@ -0,0 +1,545 @@
+/* Copyright (c) 2001-2004, Roger Dingledine.
+ * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
+ * Copyright (c) 2007-2016, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+#include "orconfig.h"
+#include "or.h"
+#include "test.h"
+
+/** Define this if unit tests spend too much time generating public keys.
+ * This module is meant to save time by using a bunch of pregenerated RSA
+keys among */
+#define USE_PREGENERATED_RSA_KEYS
+
+#ifdef USE_PREGENERATED_RSA_KEYS
+
+static const char *PREGEN_KEYS_1024[] = {
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIICWwIBAAKBgQCZa39BCgq7KWBWFSjGYHhqmTCHvQ7WNEFAb9Mujb6Xn/Zy01fu\n"
+"WIpVvqmAKeLNEziItUm/gB8GwAN+/ZLwL9pufjIp2Ar+yqVXKySioZQxuCgTP2wm\n"
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+"z1kWShL0POjYPX/BnKE1FkpklWcKBb7wkK7dvAKkEQ==\n"
+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIICXQIBAAKBgQCyqMM2TfFGV5tVBTVabxLVln8146nDavIdR6q78DCUMh8Zfzkk\n"
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+"aOFbXmOungiC9+p/4U7RbX0MEzjFDHCWlaHASviGVgta\n"
+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIICWwIBAAKBgQDDt2V63APj3JSqaRgofUzhtB+prm0wII4uHyxfOxnpYIELOW5z\n"
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+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
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+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
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+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
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+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
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+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
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+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIICXAIBAAKBgQDGgUJAm7vf/3focNGwzv4TkzYF2XwpAirnb61dyxvfug1zKv2k\n"
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+"tiTDeKHzypesWYoTxOiNQWCQMLrFGuUbDpYOuDOVNjw=\n"
+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIICXQIBAAKBgQCcwSAfytnspSSDX/sKmCPOMnpuCYeWA4wbz1wLyb63a8/KXhhG\n"
+"6o2W0kt3x1vnGZkeWwZOeBFUqwoc+xHhoNcZFsMOyqbqA3UMZW5cx27MsexRTQHs\n"
+"Go1newu/E+8NNCohY51G7z1Hdo0L6mi/Tldh7puuGsMwKqNG/Vvo/GQDgwIDAQAB\n"
+"AoGBAIUdpBAbjXDe1OET0vYuOMnUKA/l29RS8tpy/zGrg1/0GCM8QNWIPfEEaL4w\n"
+"+CSKonMazYI5iE4kaZQuygKXOdFqKxX8nrGK2hR0DIEUHhhiqyGMUKrf4ELkAJzK\n"
+"tHtcO64OFEU2EGa72wCmyk2MhqhLxWxA7E00x24uvW6pen6xAkEAzHhbzlRgLZ+K\n"
+"QuXmQHEqkGaS2Ccf6c9TA5Bf5S2/5zBl+OqVyJJQH0yrbPYR6Nn1NeSv3R4IDJYg\n"
+"fSZLaVzWHQJBAMRCU6QtTnZoQ97pLvXCSKRYKJF+CnE3zDFTyoJrpK0W1FSnb1EE\n"
+"DWjjdSdMLynf/InX+VOaLk3Gxwjme4NKjh8CQQCg2b4/HplayrsVzY3I/D2jw02Z\n"
+"xY2RfYusrhMCU284DBbsLn8OfiuRs9rXqOyF5ZDFiNXgeROT8zYzvcBtbp7xAkBU\n"
+"ZET9IvJLXjhZISItUXbVHIeNUIqC9sBaMbKx9EGioF97a2gliT2O7cgRtuPM+ODq\n"
+"ETHILlNc5G3vuNRBt4x3AkBV98Y1SZA3TQlUVTsjGraxkFTfU1IlomiOdOwTQ+xZ\n"
+"x+JxhhgZwZ+kgI3PidEufFCTZJ3WO6Wk9gk18Bx7CLjm\n"
+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIICXgIBAAKBgQDq/K7wNW3fcTbaRTjNZlM4W0G7tKeO+X0bca4+9uin3ML3ogNJ\n"
+"6qT/B0QAZB6Vyi9kKa3E8plQkjmPuX8Q27zj2QjEuDZ12RGFnikeOosUhOYiDh3Z\n"
+"T9CHnr6stozzgk79Xd6VI7bqRcgRwbY0uc9QVr6vwddyIfSploSpVcgspQIDAQAB\n"
+"AoGBAJfUpo/sZc6uzxtfCKGmkPTj+ef3hSBbUZuu60AhtxfnC06HrwpOg0eJAUYj\n"
+"aqOsHMziJTYQ7kDiCjE0UMaqxDNS5hueumznq2xM2mSN0nYoktU00kpANVkW4VPA\n"
+"33TB16DyqlKq2/21Rs1g8/8+IKkKDbRLTC//1WqNHASQVoGNAkEA/+z4hxTVXZkr\n"
+"9hz29tAHKURlqzxUEKLnS0eL+XGJRNfGJ+65eXL+gFiIbTnpVeidL1+lKWkZyYzl\n"
+"75cNRdUHhwJBAOsOJ9mUOqTbLW5tzh18ewZGOa1JcxhOvf2E1d56N8tDK6lvoqkF\n"
+"oUUb8kIweDxPLCVLCl8qFrbjn619fxDInXMCQAfEZGKNIlCd5nSoumIRPDZnagKB\n"
+"aTe8CfMB7+CZLoZVWiE6IIzsDYdNqI5QFKHT1nlqmLOiCfNRAGV+GxwEdB8CQQDE\n"
+"sHu4HclU2fMSTOAE3H01qt3om2WsGXfyBI3SNQMrG3IVvkymkwd4BQKbUGPMU5Pl\n"
+"QP3U1CtdruuXCUSijrzxAkEAoqYub6+0zM8fakSQZcZ01TG9Fuo2xVFDCQsvqR3m\n"
+"ZhRT/oinIvOxSh4fQs40bmt1RBmc2L1Is6YB2NTVQEBZDQ==\n"
+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIICWwIBAAKBgQCrf0rPvHYaGYQrc1ciRwaONs8TUvSVmUU98HMYXoFEkBL4CAGH\n"
+"4oNHFk8kXHEOsBED0eccSYegWhqKHSz7PbjmJaXloExWrtx5ea3Twf8VTgcfDWQP\n"
+"0TzD3G1TYjAFPQ1/LAZCpQFmwpMmTGGxegUhOzkpEWXdLVEVc9Uw4C4L2QIDAQAB\n"
+"AoGAZXAJZA5pHM7y6nBynYe9TOkGWru6h7H8zsImkcd0VoWRcrvpi+JjG+0KKsuy\n"
+"46kop0XEmWq0mhgxknfnX0QG1MKTqGMIUGN4qCaezOabIpCOdA4d/pr/mWoNgOWw\n"
+"9Kc/tNCrKxPKsQMAlWP6ktHN30XRSlHgAjSeUVUiNHztvTECQQDUNin2nyIvj8ZA\n"
+"QAsFW9qW+TiTkeUK6yiZ9Gvgf20gwZRWOe5/xnMxVvtN6v7Av1ew/l4VhBoj/w5g\n"
+"ydIZk+2LAkEAzuJwdt+ccllG19qmEcbo9XFafgi2PvlEjPJmT1rHV2ns/7HIMu27\n"
+"PJY36GgExSfFco6VmicaoOt+RKg+5acgqwJBAKQxAEjcGWQ5VsgRhTVxO3DChX7Q\n"
+"TColhrWPwwPhM/s7K92HVzwvvKL5TNmdr9xMb7n3Ja56FouxZVuH6/J0XT8CQAat\n"
+"Mhnz/3WFQg8HRGLAe5YoMVZt64u+uaKe1ARtlo9QoNBjqWVTXL6IzocWjEjcjrey\n"
+"uEtARdC5qNqIX3dD3H8CP3pVCPvpHOTxkUaktmLYowSA1HSfO9wkE6bMCHhkLwXF\n"
+"yTIJ+N7c5u5YN1B6hhVqpKbdnSv+K0MQ0xbfwOWNMw==\n"
+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIICXAIBAAKBgQDGQmrKfO3WovoXkOTSh/shO9qjbX4izhg4pccVU3Tp45v/dgAE\n"
+"uDUuaa/clToyH5AhOtuazO/asC3ZNajg1ia5VPzmQU3gtqiIZIEXFaOovPlOrXru\n"
+"wyQnxaGORndJwfDXicG6bUwI+PDpNq8c4VOTujReeF0r74qMSc7TQLVlUQIDAQAB\n"
+"AoGAakR/aTm9YibJVohbnl00xoOGlcLCsXU2lmaFZ3DsYdGWdD+TkvQJzW7ozJtQ\n"
+"Lj2sy6L4wujGR7nXWW3hr2IaLpoc1UoyJpieAZM5os6bMN+N4MCqdcZMlazMtSWV\n"
+"UDO7O7xQGFpcvvZmnfKCyluFaJ5K/tWxP+2TnS1/m0BDRIECQQD5DYvToA0eKBt+\n"
+"7K4eEI8pzDot9NlcL21D86kNgpmuY4pifALU7GvXr299JpFFiYa2A1JVRfpQaoI3\n"
+"hZzz0ze1AkEAy8opWJP+T2q4reD5Qq5UjjrHUXFID23KeJEjh5YF40/bHqyVpWVR\n"
+"UMntNgAzs+13vRij48Zn6I8GRhStaQ3ArQJASPyFS8GN1paeaDXoWPs1WWR2cF1f\n"
+"DbsAZHeVxVXOv+J//ZimI8wdVpodLCoPTLee+NxEVqUpVEPCYY8QjgwKOQJAATmj\n"
+"6f5pxvxzQ8hYd0gpBfngfOLbdgxI7VSiDAyg2G8AeDy9YZMsW/n6zRpPNUO2NpLR\n"
+"WWs18LX7aaxyJnGIuQJBAPPfy9pd4XEFsRBIIe3N23Gua1XkS/407RJtAGm73Vrt\n"
+"QhtWh3i6D5gfpEApMoaE8aaQQ7H0z+0Uh1t8SWesy10=\n"
+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIICWwIBAAKBgQCc/M/X8etUqrxnmH3PyuAYLIPZhwNySch8qz9NB47izYjxzuBG\n"
+"GSls6H7WeKIrB8UJY1gW8TLkdOLcrI/0hTANNHEPaueOE0xdABFj7tAaiiGPIM25\n"
+"N0wc76me0ZAMYJrZTHk8JZK153y9wInYBwVZreXCVSVf11RuVwe+iFQa5QIDAQAB\n"
+"AoGAQC4XJtivdhDLL6snHFF7pkZkrQTGgu3pOhakrXA+mTigGQOTqvTUe8LdP/9X\n"
+"hTIK+tiTheWcAcxLhx5BSB0/VDKjYhS0ROpTc33Iq9KalOQaTJbBYGA4eagpQjwU\n"
+"jGwr9u2sUsM9WI/Jg0VvLSKhfnNwYIUzLpK3BbWb2qAdh+0CQQDQ2s/8DlibFSBK\n"
+"UsFK7lLpV8UgMk9CkaNM2BPzI8Hsjpp6s3pULVRd36m4YTSg15EEHv7bZ1N/+krX\n"
+"mXb9xUULAkEAwGy5wHsUSjTK+kntkNXjlCU/+9R+HFpzg9Bwm/PqXTBwEWeU24hV\n"
+"iRjPvqPtWFZrWi/nfcviuMaqtdliw1I1zwJAZ2mQxhtMYC2LuYFUWAe9YfClmJWQ\n"
+"jUOTef8bka5I3RqW/t5TWc7AEWMnpDXtWx6hnUrDolt9Cschu7MvKeQ9lQJAL18U\n"
+"46PpPNN+XNuyVoOxgRkihVasrUI/SeYYsuv7eHGiRUagyOLpW9T139LvbV3pE8zT\n"
+"So7VA/Q0towL2lX01QJAGcoBNNouSpum9+5NvGQK1XXsZweawE+pFR2BE5XcjG+n\n"
+"FnaLEUBX7nTxhTU2cSQET1PKRNp568a281NEna0nxw==\n"
+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIICXAIBAAKBgQDFOqqGG/VtIScxayZYZ+BT+hcs5W1bD5qRxunbG9O36UVT18UE\n"
+"CWw9HUf0Q5sDMGvVmBxwZ4GjbR5FDPfhIXaRCzobnejJXq/0k+O5NAVkcSPtJvhK\n"
+"AaUqBrWA41vnjKOtJudTsZLfufKafzYwVonze7fXGyVsBRjVwHNS4iqq2QIDAQAB\n"
+"AoGAJCoStI6R3RXUKvKb0GATuTJFZ50WBTmCPTK9FMkwdCuY47vPy2Ky7y3cUMTI\n"
+"urf5PewrYs0H72CFyWGMXkKVi8aOYshsATEXMfGSqOcqXn+UDssRzvabZFlpnAUa\n"
+"WDVt/iN092AdakXNna7/DxrLisDpq8HHJfjtlWGPfkXRg4ECQQDpHeKimTvwJcPc\n"
+"iDa6Qb/n9gwLeRckfzhYtfX1luJYLIOHh+J9vjQN75thenBLQB/B6qlKtOn9ejxg\n"
+"5z+3zIOpAkEA2JbxXVTCOA802p9khvHxDtLHdKi3w/BjjJiC7Mgqo69ZI+s3PB9E\n"
+"F2HJA69kZqpGqvybWHDapjWsq7rcMlxrsQJBAME2yvR3y00VEAyGPc4M1vF8ZqlP\n"
+"uRW/+ETWtEDUyU/JvU6lGt2bu2tdkEyv/cjxIiFIzP4litdT7B1pLc+6S9kCQBwE\n"
+"usiWFGHoJbA6emiyl7qRLdg7kzo3uMkRWa6D3nA6WM+6t/SBHu/faH+fit91G5s2\n"
+"/mmcf8yMmP/GNoIVTqECQFl4Pt6yGiz/YVoYSp35ljY5n3JB6T8o2pOmIrRLuPmT\n"
+"6kgyygtJBAmx5nnQoeG8n08tl9QakWznKzkNJ0DIFKI=\n"
+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIICXQIBAAKBgQDCaOqJ0lsSAEBcnNB6X7BvVcEcol+evi/nJsPe0uT1SbtW50Ch\n"
+"vYOHwK6aQR2C5x9VSs47cLynTL7tNt5d8oeryF3NpI8VTPLImDJCcvUZhS7p4bxn\n"
+"JO+Wm+D/e3TWfyjreuWtdL+Mfimw2gzwWuBEtmj51GzQ89eYm7fh11SB6QIDAQAB\n"
+"AoGAWaakMbZNxPlUtOCjyysBY/Y5vYira7rswD3CKak7aFn+CE9QIMYSN7IFUqEg\n"
+"iNMoQd7jR8nvVX8wtJeO5+gF48W13C3n8FZSrW7c5N3bmfMIgo0xa/TGfeXHP98o\n"
+"7vhH0I58j3ZZt0Q+3wTm7t7WPE/nJzgrCk30TqmoaEmstTkCQQDtV6YZ6juEK2Lp\n"
+"LGUiqohcS/WJxvFrF5+LNpk86Xdgomf6FphZlkq42KYkvl7qibKDcfDqLKTbHHle\n"
+"vQQeCgZ7AkEA0bFHi7F8o4iHtKleBvt4QCj1neA0q3CRDypCI5EqFSrNpxY4Krhh\n"
+"WYSVX+xT00QYaCpKKWfYQztCw7Anylv96wJACl86Mwe5ch0zRV1bThiFvQLUyCCZ\n"
+"jESMBFlueOr6/I4cXSF/puqaeVl+aTyoiTdbRcNE8/bffXPRGgLIm0d04QJBAJSY\n"
+"lmTN789Lby99Xh6AkaSV4ghw26Ip8QHYJmph8npxjK69Niw/4Oy44cnKBVUPSmR2\n"
+"o3tYFY7/Lb7S1D+4lOUCQQDbMQUGVsZT+ZjuOG1bAjIuXoAOfOd3mgH5VgQHjSgJ\n"
+"ourZtlJ4OUpNrq9IfWqPkM+zSE8+0Dk8/9MS5ngBA/SJ\n"
+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIICXQIBAAKBgQDNbHjwg+7tVNr9erMLowXRnIcttp4pUJbr3B7Jo/u+kD/Yo3F3\n"
+"4rIKhHpJl1uEHP1QmvAD+4ApFFI2hNG54xYI8dGflxL5HOs5xxyOPpkrwzQ8Qvnv\n"
+"LPg7Gf6PAW9zF4McG4wK0TkrV28G6NhqcPs5VFY6UyvfZ0fEdWAeoWTIfQIDAQAB\n"
+"AoGBAKOmkMp7MLLd8QAS6eSRYSdWHdLrMyES1MjduaFGBF4SKOr7en/Zl6ENXSaX\n"
+"cA7V0XCPnjpt9/HCAKTyNupx4LCeFWiqdu8VGXhlzX8bdb896OSR2brKbxgRY5tF\n"
+"36uL8akrZdrYgocykQCxmRARMB7/rHwDusiamjL6RUZ3+c45AkEA6UPTVmKZQRMr\n"
+"A7Qgg5nXrXo9117Lpqf3FdZ1wdni9V59Ptf5xrx9oGZNZzctJPXSAH4M4cumSJrV\n"
+"sZ1V8qE7AwJBAOFx+5luLrVKrdlG7MyOhTAdhKYUvKIvL4wvVSY6y+L2nNEx/cTx\n"
+"KYbxGC+H1RJbkCS09rYir3VfDRWQ3W1c1n8CQH+X4hn2hO3blkPIW6CgniD+JKWR\n"
+"7MOUTMtdK7yFemfM76VYbgAPSohabSxwOfllnSE30cQQqTw9tXYaIdE98BECQG+M\n"
+"QWxSS0QillB6unIgVqBPCrJOcmNhK4qWZPBMiVNcqI0Nyj2nAeAl7MyfzfqOWY0A\n"
+"CU5nbR+LD2NLUXRqSisCQQCN3IGv1WOWInmA5xhU6vCFDX5u48Dcji7VLJO/Nv/i\n"
+"b/zHKAgjHk5Js7bi5ZWEGaUgA4Jt6cKmGdERheqTMKxx\n"
+"-----END RSA PRIVATE KEY-----\n"
+};
+
+static const char *PREGEN_KEYS_2048[] = {
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIIEpAIBAAKCAQEAoksI1qIuIaFCqT4QbgDvOQCmr9Z9F0E7ku+U5Ep/5dWNANqB\n"
+"bSzAOq0+cxiisfF+H4desoqiWDUwlOwXH74qD3ZsbChhvFUD78cQBWQkF+whLVHb\n"
+"296QmF0LZqosqz9HMS9CdoMUc1brZb78Hb25QIOOjrg25KYHLZHaqcet1wfhHow6\n"
+"Uehc6QTuWgOWFhJnfiXzYgen2o8lnLixxZozhk7Lm7Aix9ur2ckXdQ2Wgny4xw70\n"
+"JW84Hapnd8oFUD98XXrExk4VFuIcA8qo7r7y18II6wx4Cw1suKru6bhW65cM/y51\n"
+"KC4lB7VkvuoJCelRFdM1PfKZLv2tJP63oAqJrQIDAQABAoIBAQCWc38PEqw3avqU\n"
+"UMAEaoNa0bq1Gd8/Nq8WqVnbRSFKHO2pk+cWIb1W6BITuwvgcGKesezdEV4s7apK\n"
+"9I7/U1hEm2Ep50mrwRh0KZM1nD9Fmharn851Bt//D4qpMytT2caS1yADI8NKpZJ1\n"
+"8VZh7+cT4qG+txHUaAIRgbw3VrBWvTIMu6SOSOZm+e3eOr5UU3du1KvjdJHJ2c2k\n"
+"TceHvUdKxV7OYt+BBSN1oBOhs3ajUSRge1v3twRDg3cmbwG0DeXvwHNhGUTcF8IH\n"
+"JO1RF5njbkFvyqdAi3ltjU41zYd4OMuPtrwzFOtxUjKT62Soz109HUXXE2CGKFPZ\n"
+"PVi5/BIhAoGBANN1xqS5BgHszIB0nXbw5ImYpTRmyhO0KsTblBT9+8Q/B7BCK7bM\n"
+"zl+dOPeyvEadSwE7RSMMt6CAlTakWIf3Quw/VZajvXy9C9/LHf52pEKXjxMFMPKE\n"
+"aGLHpQnwMtDi8/H8AEAXxI3hpxB2KVR7sAYHWihSGjRJ6oPGvEmKEkb5AoGBAMR6\n"
+"G2PKz0xk1vFrjfjSY+y13gH/t7xHaXUggjggUSGKaknQh2BDUllXjadeI0fi1eLW\n"
+"r98ZImZZgntAgjaIZ4bAlooTDk4gRHaz9jI+z8lsRwOKnWdiigM7txiXZTMVwMqj\n"
+"o5mMNGMA+A+ACkTViRHmkDI7S/9FqAvnbOqVwgFVAoGBALUcY6WDvwx5B3Jh7tgH\n"
+"XIYpEh3+h8c2gYcX1g3gtvkPTwN8uToY0gz8eOVV1YHZiHsmi4GIi+HRH3usaRMT\n"
+"COOVHzYlSc8Dj57+tdLTRL6wVl9hC9o647ju64DGlI9qQquYPZKniLZIdbFYsu9j\n"
+"/JA9Tc/I+h6czFpPJccKlbrpAoGAAPWXrKUQ3g6f/g3IY66jTkSVEO1uuDyhBzFh\n"
+"cWS3ALLsUe/yuUWa4VTMHEUZZwB0iucBdNVqlZVaTb/C4wFHgCDwmzv8leUScIHw\n"
+"cc5ctV8R+bJzkk2o3tsrybLzi4xPpK2n3tgQaWtXyruVUUC5qpy1l4kylcyBRY2b\n"
+"uomAqQECgYAiCNWtuWIDlRBcvtIB+kHguzcoFT3vTCCNhalTEn0zi/tbi+voQgVJ\n"
+"SDJNptZv+6vRwQ/HfcQtljKIPO6hUZPYaFWRNhgbh7Ay85lRXYXQOottE8ayReBk\n"
+"zZb0fl853Qah4DPsaOugAvhjjKeBmKg6bFWO1z6hj18I3UpDf2YnVQ==\n"
+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIIEpQIBAAKCAQEAssO0r37mSJNAkc/ISwXBsu9JjyLeWlsHPAhylQGkSAdp2rjz\n"
+"E6AT0Eh3wrocNO31I4pvHReAuh1QedGY6T1cQwO/WAAhQtRCBQDK12qWRgfbC11y\n"
+"Xu7zNYPd1Z7YIRy+FxhbL5f+lv3rEUv0HUG5c3CWhLtbANKg+jOieIDzA4Yp1s55\n"
+"ynodQBUkTZrwQiT0P8yDSjiasf+clgJRfA1k2XK12KSAMRgyDuPTE4OtBxBvUM3L\n"
+"Zvxs81PsmcOuAG4DLaFTg2a/QkCjt2VC1SYYuh/LVxpL41FFh3eMoK5g5deHkgRe\n"
+"tlywKjAHIDJu/qgNzNgNW7ymwn2CfBvry9h0/wIDAQABAoIBAEMZ4wDdCWPEokAZ\n"
+"Vn2Ss5qO53WrCPuxn42RPjFgZGIFJl7LfbKoK8fK6+lUIrJbf+DPXdX1tIQn7MVN\n"
+"P7CNL8yX44MMyW9kbUOjgIBLqgyvdjFV6lBoMTKtRN+iuE31lATnR5Md4pqaxVnA\n"
+"wOkaepoycM1x5j7w0SwZparF/HIdkYv0y/MysqT9ByupPA4Fqp/iRSrosHXahNtI\n"
+"KZYj1TyERYtuDXq91P4dr/pWq3FmDNI8O3upblkL0YouvG/ZlFLdiNy77XbAyWcX\n"
+"ps3YDddM+vECnXO3+sa3ZxgBYvXJdWrrIzM5A+jCkDRZQGsFAzK5I5/S7C2ljt6i\n"
+"SmzqvMECgYEA16bGy2XTi6KBPb8aev/OBgK9XuGLwUqK1m15mS9Y2qPHmuc22qaZ\n"
+"hw6zginPFrxAEtQWKanhZy4aVqlLkDPLwRnyeuMo1EZAc5B1gZ5ViSAKxBq99hA9\n"
+"eqyakdb+IUQsEnRDxSc2gqUQ0EagksUyw5wGG5Q/CVEALmS/r1SU3KUCgYEA1DYf\n"
+"6JYdzuRtule3vYeWXKf8sOJpdplgWV7tvLrKkQhdE564uwMCYB23HvYfwWqEdDYG\n"
+"fsYg/ur/stk9MDZ3wZKffTEM8V3sX1t1JXnC3ogSAgMGhLZ3ILOLqkoO4BEZJnsS\n"
+"dMdiNijlAtQkqs/BO/UVUAKysCtKP3v/+1775dMCgYEAvLjGFjApfnSbV/cK7IM6\n"
+"wEXbhdIqZOCgOeEaXjVyM/zKbMRVW+oaR3hVHd8KzSG3jQKv1oxFpu9Qu3ByoWLC\n"
+"uF3Ft0debs6ADuJoAyQWROeWpGGmxlUWCGpO5rxYL7KiQxAeUsXrTU+5NBvq4CbV\n"
+"MxwyuCX3OGb7mp4upfiGQcUCgYEAuhVsDYv1P4LXJVvd5viKRV2ZG5KuYC1Ga5fu\n"
+"aFxzXJI07At2eaa94oKsHR494mEBHNZzA5/BN0fiSHZuTWS1xqxH5oOokc6Gg2ez\n"
+"ZdVLp88x20nD4YQPGkHW6tBeEuVrZG7vVC+yU0Ow7bYRISdkjqrusWZsQkbzqI+X\n"
+"fFliEbkCgYEAu8x+47M1ordbI7NmbBGyiyP0r7nMRCZ+KEvGeCNYracWmsnCNnfV\n"
+"zR2UzmwtSainw3Ho8Jv/rWDC8RIDauyBRYEi2VqOnUzT2ca0iymQyLeBCudAQuio\n"
+"drOu4JU8RzZ3Ad6V3DNFnaqmX/7GA9Pa2GI8NJMyb8p1GAGv7Gi8nxc=\n"
+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIIEowIBAAKCAQEAt01S8JuEwWy/Hzb90yO2O7oGWq3GfvfDpFOF4OQnwG3kQ/BP\n"
+"4MoPDCYHdqb3iI9aD3vykZA6Q8zpdfGwjm4+bHrgRdiSmZWv8NvRwuQ5Ji9xbiGn\n"
+"hA1XwqH9hvgFTiy6tRvirWSJ7kzH3Q/bEGpCbHUQkwMog4v6yCNKNrjlwjN++eCi\n"
+"gFK/0RMOJMLOs8BD3zY+lKjd/pd8LBRujkMyUF5SryeRueAFjD2sq4OXq8DPABGt\n"
+"zdR6vbTcsi4JwP1Q6y4x0/LIWEprzzewNU63I5E2zj0WnoRGAIM4aF+VuqcHjWUx\n"
+"VWnyLZldSen6lScZ4xj4seitiDbSFvtFkDF6VwIDAQABAoIBAGTP9im2ntDyyjqU\n"
+"uA0DuxomOZBtupniEouyFBOX5/UBe2WSKZxsBNKdp8UuFz3X+aRCeyprtF/NtyjT\n"
+"AFOVdmebPPWtIxOtK9LAUyFo+7VwqmXzxHnwDLBS/2jXx7MzDozFBWpvvRx+xf1i\n"
+"1wy0JEwaJj90oTeYKRkhr5NhJZwkX8zCNYaemBd3kHB3aGWGJasI1Y81UezeRKCn\n"
+"hSbn2CrWalI7pyJ4lsavM11nIq1Eu2ZthJiNCMghbYrHoBHd+iVWiCYchP2rNEWV\n"
+"sdHtaVHtQ9zdZ43bao3OzPu7lAjd6UAbxsuhUe+a2YdDz/+Up+6+BvQf1FCfYIjW\n"
+"KFUdCoECgYEA4t5O+u0V9gkMUhKsevYb0zgc7O/mo8ivN+V++EpAtL0mhiwxeO8p\n"
+"oef0szLyhdULQeLN9pJQDCeAbkGdwIe3L+AKU8o8BFGEWLFysZjMg9In/UTrp5MN\n"
+"mMDy2SRKKu5BqsvdYH302xpZfHq1T2cMNDWE8lrZffduH06Cgq/XEtECgYEAztbj\n"
+"bhFneADnrvk609VnOQvoQEjySeCQKFQFRRI6k/FguqMisL2IRXnMaWammosdeCAg\n"
+"m7eZchnszHIst9cwZUKXUFqmAqeDuWSNdTI7uKZH6nT/A6IDlgdjaHsqhvpK0Ac9\n"
+"ngycdHONitOZh0ZG74pdWjf828Dwzf+CuYjl9KcCgYEAmIvI6ZqvkJ8m5Kzfw1Jn\n"
+"BVCOypbJK8oOX3R2Orea6KzjEYb3wQx3nwFcHX6danYFOskpmqlpH7MT/Y8rZsEa\n"
+"4RsxdoPedTzm08iFiXtn0R9nejp0hlov402iPXXUVSedih3IflBTa1w9XaEY9wog\n"
+"P57ZBSknYzcTmgNtaDiaUnECgYA5sWauhNw/dMEq5QmrnJK2LsQRakdqo+CR3x25\n"
+"LmR4b5Nze51pfvRLrLV/kMpXwQXvQ8bUqFl8og6S2CXxAWzWUcSy/RXhF6h+RbXP\n"
+"Qru1vWvB0fBvqvklF9p6giBSle3YKKzfMNVTBggs+OiR+uA+YHG5gHRfN2nzi5mC\n"
+"9tRtcQKBgBnDSi4lRCjRe9pPnyAYaa4iyBUGhjPysScSLY9orel89+qmTBQ/Py6J\n"
+"0+sefL4ZJaOsuaR2mSSPP/lbSkF9DMFs4tHbBqY+WkVNYLshAkauHwqv26HTVCSd\n"
+"QKzeb7uZw9lNaRIzDvy/3wfCLvXfdDozPFrOUgkyaBN5pJSA/4sv\n"
+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIIEogIBAAKCAQEA9qtiDoJWqU/eSlpj381eG6UcDzfMguFh/q4e4s7QVdRYj5J0\n"
+"Msv0PCkti8JHuvQUyncRpOPccBkhNbVjNbjIgw1pHaIZNdVotUDhP0kseRyJ6z3M\n"
+"qbZ5qKn+0mHjVjPNItVDDe6tebYMT1BZpVyRrCOqY2v5z1ecLC+ReygmHgDpzg+L\n"
+"0rWfIxGT10IPZ8pAlcdEn6xt5aEhi7mPCX/xwqfQChPIJz6zVLEC8UaPtvDBohPR\n"
+"6NQTBTeZZAAtzrQ7+oNxfz1v6Fz6RwMei7Q+qOBnMiwpQmbcDBKABM2RnXSpD0LA\n"
+"1GR7/+CiV1HQoShWVvEwrSIlM6jVAJo6iqF6WQIDAQABAoIBAHqwcdxPnfUm4aTP\n"
+"4r9NcZKEhDlZgqJSoiA/0OL1BRC7xrTanmspoLhPrvTF1FG715+Aq8j9AQbMqQUC\n"
+"zG7LEwiEIhV4K9vn4uXMeHy206UFud/E5EhBl695pmJUB/Q3XcAGnQyP+77++o50\n"
+"o7IpIdeiAbzj1uP3aplbq5u7M4JV7fUZWA/368G4HolqFTxcAfBJ05GXlp97BBwY\n"
+"AnY3/pNrKMz0NiPf3nsJHYWK18up0JCLPL3tomc94wuNZ66spIazHIL9aaKY0q3V\n"
+"LkBrelndfYM1m4xRTnSOy6STu0qKTPOpX0C8XBLYs6uiXjRsChqSYwndCCeASaH3\n"
+"LGNIcbUCgYEA/m4qvt8tdT4wEvnE+QUxEELmBtT4UFa3NnQISrzNlhNeI0Zd2xlp\n"
+"SG0/pcw83mG2uX+V5xSaWL5LYfLBkvy83Y0yIWgYbbIkyyCOUZnTpwaDGU/FjWip\n"
+"3TfXf5qpAgiez94sV+MsFpKfG05yxJh5u+3sIyGTVUAxp0HPx4LVgbMCgYEA+DD1\n"
+"fu6ttpuV1UMrsFdjuk6gBvSbyJ9OilY2jT+yE7hSRc/yP3O9ikuR74tNlVrWTnO2\n"
+"0kcYbyLJXE2cGUC2q5e4r8TDGiozNfQ7/OC2M3XaJ+xJk4zMf/8PuDDpWr+18ZXA\n"
+"Pf+ibXWTFvZ6ZeUmpbrrfCrXdvmIZnwVuOI0FcMCgYAZn26emksxq3mb75tumJ9A\n"
+"S/xuY7Q+Iv2Adl7/Z9QscPbiBowdLIn1yUrHn7Hhk2WbeMXX57NDjKZ6zr+/1cQP\n"
+"a9DInHsZUP9zlWu/vAYcpAM/4VC71PaGWMFTEHhExCl6NZ2xnCcsfseXMGdOdSyN\n"
+"SICnaRI1W6mkdnQ+W2a1EQKBgGEKA3KVr6XuPy8bDEHuaTe29irCCQbwAq1j+ABS\n"
+"HzZGoyRYocbdYgZoda7LMJJs6c3SwHCHC66oU0KbtaTKAKImuDdBH2djiJJX4/yD\n"
+"f7mvIpTpdfsS2gJRn7vMo/CvdFv4ySl0gfV6OwCHbmPYrLuv0dLCjWwfNI2dhoC7\n"
+"MNIxAoGAIPSIG4BrShzbeX4c2L18iwIg+NlOcUbtl0Ccr1t6uLGI+ge/6I6T/5XH\n"
+"DPKqYIf0IRYV8suxpfQNKiz/C0NPffA1d1M2hvuAg2v09o2cSwvdcQwdmakKZ5bl\n"
+"sdCuYKdCIwomEUOz/4XgQrJl4XDUqxftJT6/egAjWvcIYvfNCsY=\n"
+"-----END RSA PRIVATE KEY-----\n",
+
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIIEowIBAAKCAQEA1yHZMsgRLckL+v6rgpGq9qmxVBNDxeuul1V/QlFyOlcAk5n/\n"
+"uduTalSqGQhc4NEePMxq6nFui4ucpkZOozmcEnhV0N9jld9IB9rLGt4erdg7RKl9\n"
+"+gQ+zTn69j69U36E2I47H4dM69uxeSOyWP2Odxpw+biisa3o8mMz1zCmuj4GMDtG\n"
+"DlnSpthFzgQR6N1pbvxLXrWg5F16GqFiJOD7kXDfy4/l6kB/mDs1T/3r8kav6DqR\n"
+"c/t3aQZxgWGIpI7hc9Qgvp7coZRMey5dNOZEna3tqS8dn2tZlhkpYV5uyFUjmxjG\n"
+"TERSULQ7hvUqW+eshGGsnxFtL7ANnTSc4xECowIDAQABAoIBAFhJJMhpQFuIySjd\n"
+"AGeZ/g4x/3rgWQzNNp4WUR5XLEhy0eLA7ShJywp06kVRoEQGraEHxsyldldAGS5H\n"
+"ZhgoGTufNKB+PHER646FpJpHE1IGjfQUloVW3qr8I1iQ0MOGBWCVpf+/V7rnMsLi\n"
+"+lr421FXgYuJ0QKXuyRVv72M0q9U6i+ml3aVAhgW/19oFg+dW7YccX+9iVyD05Q5\n"
+"KR64tX8xd4wrAqfAgYA3erbbE6GTyHYD5K54kIgfRr/+pIU4qc1L7XOCblnqc/rI\n"
+"BilFysEC634r2MNe66uQvNui4oQTfBcFFlXg0zAmp7d5QE0ApOL6HpCsmbImm2uJ\n"
+"sdFNYyECgYEA716kfEv7HfnF0P3pAP2AOuEsW6t8q0UtWvnHrwRQXQw8Yv90g7kD\n"
+"pUV3/BjD9VQgsQZosbdSn5wbT4j7dypRdrzYk+8m/hBk4Q8M/tWoRGVOn46NudvK\n"
+"/KX0A4ODLuulj8yAZVc7CM5Cdy4GCGJBVO+oVvBUAnHxfZziOyqBw9MCgYEA5hQg\n"
+"HEORzdxvbbfAx1ggvH1Eg1lqRhmpI43PpRkaoqb8jLwXb2CyBeuv3RBft/X2Tr6F\n"
+"mHpe0U1kN/5YEjii/Q/jUX8azIHaUNNSAjrriEeMQZOqFxmhCdiyeXuqg2fbFbhe\n"
+"K3Q6/fsB1xj9OOSwyPMqm/M5U0LsoGjmg8TFE/ECgYAlImKUIdlwOgp1NJ7MF4eo\n"
+"Gryd8AmkLFQv8+YFgb7R4I8RsJ2rva0SG6fUhScJTSbRL7RYNZ9swXP/L7oLL5Z5\n"
+"vCxBLu22pmZv/7y9X/n9ulWrLRtRhQaFkV08mk9knQwPNeOJVTIEWLM49/vZmxyV\n"
+"h6Ru8FOoGXMkUI1MLnj5HwKBgGJLkNhiacVYeuaWDa9c0EeXARFYvxWJ2wAMkvzG\n"
+"9+ErlFQP+7ciyYvMAItidnJii8NilDLrfNzQwpNFf5zxQ3j4M7bapblfdMT5M10u\n"
+"jPfhEWPm0VEjKvDI+p76HYQcd7YU2W6ZLqbZeRTLYUvQMFL5yGduBzyyJ+P0TR9Y\n"
+"jpYRAoGBAM7vYGTprw4w2tTZPFICXVk1bQ0LO06oNRtwkiQTUT6UqPjWMFyvHnmN\n"
+"11SVVBmRZ0RAk6e5eZLFX8WelJ4J4nSOGRcJheCtoEFlO7D1ewAUSbqWJ0pBqp2T\n"
+"gV4oCS8LYe8zReVoYZJjuLwoHvxZzs/hUjc3SI2HRW2W/HQRPC25\n"
+"-----END RSA PRIVATE KEY-----\n"
+};
+
+#define N_PREGEN_KEYS_1024 ARRAY_LENGTH(PREGEN_KEYS_1024)
+static crypto_pk_t *pregen_keys_1024[N_PREGEN_KEYS_1024];
+static int next_key_idx_1024;
+#define N_PREGEN_KEYS_2048 ARRAY_LENGTH(PREGEN_KEYS_2048)
+static crypto_pk_t *pregen_keys_2048[N_PREGEN_KEYS_2048];
+static int next_key_idx_2048;
+#endif
+
+/** Generate and return a new keypair for use in unit tests.  If we're using
+ * the key cache optimization, we might reuse keys. "idx" is ignored.
+ * Our only guarantee is that we won't reuse a key till this function has been
+ * called several times. The order in which keys are returned is slightly
+ * randomized, so that tests that depend on a particular order will not be
+ * reliable. */
+static crypto_pk_t *
+pk_generate_internal(int bits)
+{
+  tor_assert(bits == 2048 || bits == 1024);
+
+#ifdef USE_PREGENERATED_RSA_KEYS
+  int *idxp;
+  int n_pregen;
+  crypto_pk_t **pregen_array;
+  if (bits == 2048) {
+    idxp = &next_key_idx_2048;
+    n_pregen = N_PREGEN_KEYS_2048;
+    pregen_array = pregen_keys_2048;
+  } else {
+    idxp = &next_key_idx_1024;
+    n_pregen = N_PREGEN_KEYS_1024;
+    pregen_array = pregen_keys_1024;
+  }
+  /* Either skip 1 or 2 keys. */
+  *idxp += crypto_rand_int_range(1,3);
+  *idxp %= n_pregen;
+  return crypto_pk_dup_key(pregen_array[*idxp]);
+#else
+  crypto_pk_t *result;
+  int res;
+  result = crypto_pk_new();
+  res = crypto_pk_generate_key_with_bits__real(result, bits);
+  tor_assert(!res);
+  return result;
+#endif
+}
+
+crypto_pk_t *
+pk_generate(int idx)
+{
+  (void) idx;
+  return pk_generate_internal(1024);
+}
+
+#ifdef USE_PREGENERATED_RSA_KEYS
+static int
+crypto_pk_generate_key_with_bits__get_cached(crypto_pk_t *env, int bits)
+{
+  if (bits == 1024 || bits == 2048)  {
+    crypto_pk_t *newkey = pk_generate_internal(bits);
+    crypto_pk_assign_(env, newkey);
+    crypto_pk_free(newkey);
+  } else {
+    return crypto_pk_generate_key_with_bits__real(env, bits);
+  }
+  return 0;
+}
+#endif
+
+/** Free all storage used for the cached key optimization. */
+void
+free_pregenerated_keys(void)
+{
+#ifdef USE_PREGENERATED_RSA_KEYS
+  unsigned idx;
+  for (idx = 0; idx < N_PREGEN_KEYS_1024; ++idx) {
+    if (pregen_keys_1024[idx]) {
+      crypto_pk_free(pregen_keys_1024[idx]);
+      pregen_keys_1024[idx] = NULL;
+    }
+  }
+  for (idx = 0; idx < N_PREGEN_KEYS_2048; ++idx) {
+    if (pregen_keys_2048[idx]) {
+      crypto_pk_free(pregen_keys_2048[idx]);
+      pregen_keys_2048[idx] = NULL;
+    }
+  }
+#endif
+}
+
+void
+init_pregenerated_keys(void)
+{
+#ifdef USE_PREGENERATED_RSA_KEYS
+  const char *s;
+  crypto_pk_t *pk;
+  unsigned i;
+  for (i = 0; i < N_PREGEN_KEYS_1024; ++i) {
+    pk = pregen_keys_1024[i] = crypto_pk_new();
+    s = PREGEN_KEYS_1024[i];
+    int r = crypto_pk_read_private_key_from_string(pk, s, strlen(s));
+    tor_assert(r == 0);
+  }
+  for (i = 0; i < N_PREGEN_KEYS_2048; ++i) {
+    pk = pregen_keys_2048[i] = crypto_pk_new();
+    s = PREGEN_KEYS_2048[i];
+    int r = crypto_pk_read_private_key_from_string(pk, s, strlen(s));
+    tor_assert(r == 0);
+  }
+
+  MOCK(crypto_pk_generate_key_with_bits,
+       crypto_pk_generate_key_with_bits__get_cached);
+#endif
+}