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generator: memcpy -> memmove
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This commit is contained in:
surtur 2021-12-11 01:04:57 +01:00
parent 595245fbce
commit a7e8caa26e
Signed by: wanderer
GPG Key ID: 19CE1EC1D9E0486D
1 changed files with 4 additions and 4 deletions
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8
generator.cpp
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@ -63,7 +63,7 @@ auto Generator::reseed(const std::string& s) -> void {
try {
std::string a{do_sha(to_be_hashed)};
std::memcpy(&G.k[0], &a[0], G.k.SizeInBytes());
std::memmove(&G.k[0], &a[0], G.k.SizeInBytes());
++G.ctr;
} catch(std::exception& e) {
fmt::print("{}", e.what());
@ -128,7 +128,7 @@ auto Generator::do_crypto() -> std::string {
// 16 bytes --> 128bit
static constexpr const std::size_t ctr_length{16};
CryptoPP::FixedSizeSecBlock<CryptoPP::byte, ctr_length> ctr;
std::memcpy(&ctr, &G.ctr, ctr_length);
std::memmove(&ctr, &G.ctr, ctr_length);
try {
// fmt::print("plain text: {}\n", plain);
@ -174,7 +174,7 @@ auto Generator::generate_blocks(unsigned int k_blocks) -> std::string {
try {
std::string da_key{""};
da_key.resize(G.k.size());
std::memcpy(&da_key[0], &G.k[0], G.k_length);
std::memmove(&da_key[0], &G.k[0], G.k_length);
// TODO(me): assert reseed_time > 100ms
reseed(do_sha(da_key));
} catch(std::exception& e) {
@ -226,7 +226,7 @@ auto Generator::generate_random_data(uint n) -> std::string {
/* clear out the old key and set a new one */
std::memset(G.k, 0x00, G.k.size());
std::memcpy(&G.k[0], &dst[0], dst.size());
std::memmove(&G.k[0], &dst[0], dst.size());
} catch(std::exception& e) {
fmt::print("{}", e.what());
}