diff options
Diffstat (limited to 'src/tests/test_rng.cpp')
| -rw-r--r-- | src/tests/test_rng.cpp | 44 |
1 files changed, 36 insertions, 8 deletions
diff --git a/src/tests/test_rng.cpp b/src/tests/test_rng.cpp index c905b09e3..d057f0e55 100644 --- a/src/tests/test_rng.cpp +++ b/src/tests/test_rng.cpp @@ -144,16 +144,18 @@ class HMAC_DRBG_Unit_Tests : public Test Request_Counting_RNG counting_rng; Botan::HMAC_DRBG rng(std::move(mac), counting_rng, Botan::Entropy_Sources::global_sources(), 2); Botan::secure_vector<uint8_t> seed_input( - {0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD,0xEE,0xFF}); + {0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD,0xEE,0xFF, + 0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD,0xEE,0xFF}); Botan::secure_vector<uint8_t> output_after_initialization( - {0x26,0x06,0x95,0xF4,0xB8,0x96,0x0D,0x0B,0x27,0x4E,0xA2,0x9E,0x8D,0x2B,0x5A,0x35}); + {0x48,0xD3,0xB4,0x5A,0xAB,0x65,0xEF,0x92,0xCC,0xFC,0xB9,0x42,0x7E,0xF2,0x0C,0x90, + 0x29,0x70,0x65,0xEC,0xC1,0xB8,0xA5,0x25,0xBF,0xE4,0xDC,0x6F,0xF3,0x6D,0x0E,0x38}); Botan::secure_vector<uint8_t> output_without_reseed( {0xC4,0x90,0x04,0x5B,0x35,0x4F,0x50,0x09,0x68,0x45,0xF0,0x4B,0x11,0x03,0x58,0xF0}); result.test_eq("is_seeded",rng.is_seeded(),false); rng.initialize_with(seed_input.data(), seed_input.size()); - Botan::secure_vector<uint8_t> out(16); + Botan::secure_vector<uint8_t> out(32); rng.randomize(out.data(), out.size()); result.test_eq("underlying RNG calls", counting_rng.randomize_count(), size_t(0)); @@ -337,8 +339,8 @@ class HMAC_DRBG_Unit_Tests : public Test // make sure the nonce has at least 1/2*security_strength bits - // SHA-256 -> 128 bits security strength - for( auto nonce_size : { 0, 4, 15, 16, 17, 32 } ) + // SHA-256 -> 256 bits security strength + for( auto nonce_size : { 0, 4, 8, 16, 31, 32, 34 } ) { if(!mac) { @@ -350,15 +352,15 @@ class HMAC_DRBG_Unit_Tests : public Test std::vector<uint8_t> nonce(nonce_size); rng.initialize_with(nonce.data(), nonce.size()); - if(nonce_size < 16) + if(nonce_size < 32) { result.test_eq("not seeded", rng.is_seeded(), false); - result.test_throws("invalid nonce size", [&rng, &nonce] () { rng.random_vec(16); }); + result.test_throws("invalid nonce size", [&rng, &nonce] () { rng.random_vec(32); }); } else { result.test_eq("is seeded", rng.is_seeded(), true); - rng.random_vec(16); + rng.random_vec(32); } } @@ -487,6 +489,31 @@ class HMAC_DRBG_Unit_Tests : public Test return result; } + Test::Result test_security_level() + { + Test::Result result("HMAC_DRBG Security Level"); + + std::vector<std::string> approved_hash_fns { "SHA-160", "SHA-224", "SHA-256", "SHA-512/256", "SHA-384", "SHA-512" }; + std::vector<uint32_t> security_strengths { 128, 192, 256, 256, 256, 256 }; + + for( size_t i = 0; i < approved_hash_fns.size(); ++i ) + { + std::string hash_fn = approved_hash_fns[i]; + std::string mac_name = "HMAC(" + hash_fn + ")"; + auto mac = Botan::MessageAuthenticationCode::create(mac_name); + if(!mac) + { + result.note_missing(mac_name); + continue; + } + + Botan::HMAC_DRBG rng(std::move(mac)); + result.test_eq(hash_fn + " security level", rng.security_level(), security_strengths[i]); + } + + return result; + } + Test::Result test_randomize_with_ts_input() { Test::Result result("HMAC_DRBG Randomize With Timestamp Input"); @@ -536,6 +563,7 @@ class HMAC_DRBG_Unit_Tests : public Test results.push_back(test_prediction_resistance()); results.push_back(test_fork_safety()); results.push_back(test_randomize_with_ts_input()); + results.push_back(test_security_level()); return results; } }; |