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authorlloyd <[email protected]>2008-10-28 18:04:59 +0000
committerlloyd <[email protected]>2008-10-28 18:04:59 +0000
commit462ed4a4efe1a7470ac9b6dec55ebe6352b898e2 (patch)
tree32505934bef2316ff39038c1a94f1fc58f7a8d75 /checks
parentfd8817b742a483220965b3ca161347142303343e (diff)
Add HMAC_RNG benchmarks. Change X9.31 PRNG to use HMAC_RNG as lower RNG
Diffstat (limited to 'checks')
-rw-r--r--checks/algos.cpp1
-rw-r--r--checks/dolook2.cpp45
2 files changed, 35 insertions, 11 deletions
diff --git a/checks/algos.cpp b/checks/algos.cpp
index 2ed25a846..6d0b17b4c 100644
--- a/checks/algos.cpp
+++ b/checks/algos.cpp
@@ -90,6 +90,7 @@ std::vector<algorithm> get_algos()
algos.push_back(algorithm("MAC", "HMAC(SHA-1)", 16));
algos.push_back(algorithm("MAC", "X9.19-MAC", 16));
+ algos.push_back(algorithm("RNG", "HMAC_RNG", 4096));
algos.push_back(algorithm("RNG", "Randpool", 4096));
algos.push_back(algorithm("RNG", "X9.31-RNG", 4096));
diff --git a/checks/dolook2.cpp b/checks/dolook2.cpp
index 9dc72cacb..ece8b261f 100644
--- a/checks/dolook2.cpp
+++ b/checks/dolook2.cpp
@@ -10,6 +10,13 @@
#include <botan/randpool.h>
#endif
+#if defined(BOTAN_HAS_HMAC_RNG)
+ #include <botan/hmac_rng.h>
+ #include <botan/hmac.h>
+ #include <botan/sha2_32.h>
+ #include <botan/sha2_64.h>
+#endif
+
#if defined(BOTAN_HAS_X931_RNG)
#include <botan/x931_rng.h>
#endif
@@ -133,25 +140,41 @@ Filter* lookup_rng(const std::string& algname,
new Fixed_Output_RNG(decode_hex(key)));
#endif
-#if defined(BOTAN_HAS_X931_RNG) && defined(BOTAN_HAS_RANDPOOL)
+#if defined(BOTAN_HAS_RANDPOOL)
+ if(algname == "Randpool")
+ {
+ prng = new Randpool(get_block_cipher("AES-256"),
+ get_mac("HMAC(SHA-256)"));
+
+ prng->add_entropy(reinterpret_cast<const byte*>(key.c_str()),
+ key.length());
+ }
+#endif
+
+#if defined(BOTAN_HAS_X931_RNG)
// these are used for benchmarking: AES-256/SHA-256 matches library
// defaults, so benchmark reflects real-world performance (maybe)
- if(!prng && (algname == "Randpool" || algname == "X9.31-RNG"))
+ if(algname == "X9.31-RNG")
{
- Randpool* randpool = new Randpool(get_block_cipher("AES-256"),
- get_mac("HMAC(SHA-256)"));
- randpool->add_entropy(reinterpret_cast<const byte*>(key.c_str()),
- key.length());
-
- if(algname == "Randpool")
- prng = randpool;
- else
- prng = new ANSI_X931_RNG(get_block_cipher("AES-256"), randpool);
+ RandomNumberGenerator* hmac_rng =
+ new HMAC_RNG(new HMAC(new SHA_512), new HMAC(new SHA_256));
+ prng = new ANSI_X931_RNG(get_block_cipher("AES-256"), hmac_rng);
+ }
+#endif
+
+#if defined(BOTAN_HAS_HMAC_RNG)
+ if(algname == "HMAC_RNG")
+ {
+ prng = new HMAC_RNG(new HMAC(new SHA_512), new HMAC(new SHA_256));
}
#endif
if(prng)
+ {
+ prng->add_entropy(reinterpret_cast<const byte*>(key.c_str()),
+ key.length());
return new RNG_Filter(prng);
+ }
return 0;
}