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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /comm/third_party/botan/src/fuzzer/redc_p521.cpp | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'comm/third_party/botan/src/fuzzer/redc_p521.cpp')
-rw-r--r-- | comm/third_party/botan/src/fuzzer/redc_p521.cpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/comm/third_party/botan/src/fuzzer/redc_p521.cpp b/comm/third_party/botan/src/fuzzer/redc_p521.cpp new file mode 100644 index 0000000000..e148c94bb7 --- /dev/null +++ b/comm/third_party/botan/src/fuzzer/redc_p521.cpp @@ -0,0 +1,31 @@ +/* +* (C) 2015,2016 Jack Lloyd +* +* Botan is released under the Simplified BSD License (see license.txt) +*/ + +#include "fuzzers.h" +#include <botan/reducer.h> +#include <botan/curve_nistp.h> + +void fuzz(const uint8_t in[], size_t len) + { + if(len > 2*(521+7)/8) + return; + + static const Botan::BigInt& prime = Botan::prime_p521(); + static const Botan::BigInt prime_2 = prime * prime; + static Botan::Modular_Reducer prime_redc(prime); + + Botan::BigInt input = Botan::BigInt::decode(in, len); + + if(input < prime_2) + { + const Botan::BigInt ref = prime_redc.reduce(input); + + Botan::secure_vector<Botan::word> ws; + Botan::redc_p521(input, ws); + + FUZZER_ASSERT_EQUAL(ref, input); + } + } |