mirror of
https://github.com/dashpay/dash.git
synced 2024-12-24 19:42:46 +01:00
Add selftest for SHA256 transform
This commit is contained in:
parent
c1ccb15b0e
commit
fa9be909c9
@ -5,6 +5,7 @@
|
||||
#include "crypto/sha256.h"
|
||||
#include "crypto/common.h"
|
||||
|
||||
#include <assert.h>
|
||||
#include <string.h>
|
||||
#include <atomic>
|
||||
|
||||
@ -140,7 +141,36 @@ void Transform(uint32_t* s, const unsigned char* chunk, size_t blocks)
|
||||
|
||||
} // namespace sha256
|
||||
|
||||
void (*Transform)(uint32_t*, const unsigned char*, size_t) = sha256::Transform;
|
||||
typedef void (*TransformType)(uint32_t*, const unsigned char*, size_t);
|
||||
|
||||
bool SelfTest(TransformType tr) {
|
||||
static const unsigned char in1[65] = {0, 0x80};
|
||||
static const unsigned char in2[129] = {
|
||||
0,
|
||||
32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
|
||||
32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
|
||||
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0
|
||||
};
|
||||
static const uint32_t init[8] = {0x6a09e667ul, 0xbb67ae85ul, 0x3c6ef372ul, 0xa54ff53aul, 0x510e527ful, 0x9b05688cul, 0x1f83d9abul, 0x5be0cd19ul};
|
||||
static const uint32_t out1[8] = {0xe3b0c442ul, 0x98fc1c14ul, 0x9afbf4c8ul, 0x996fb924ul, 0x27ae41e4ul, 0x649b934cul, 0xa495991bul, 0x7852b855ul};
|
||||
static const uint32_t out2[8] = {0xce4153b0ul, 0x147c2a86ul, 0x3ed4298eul, 0xe0676bc8ul, 0x79fc77a1ul, 0x2abe1f49ul, 0xb2b055dful, 0x1069523eul};
|
||||
uint32_t buf[8];
|
||||
memcpy(buf, init, sizeof(buf));
|
||||
// Process nothing, and check we remain in the initial state.
|
||||
tr(buf, nullptr, 0);
|
||||
if (memcmp(buf, init, sizeof(buf))) return false;
|
||||
// Process the padded empty string (unaligned)
|
||||
tr(buf, in1 + 1, 1);
|
||||
if (memcmp(buf, out1, sizeof(buf))) return false;
|
||||
// Process 64 spaces (unaligned)
|
||||
memcpy(buf, init, sizeof(buf));
|
||||
tr(buf, in2 + 1, 2);
|
||||
if (memcmp(buf, out2, sizeof(buf))) return false;
|
||||
return true;
|
||||
}
|
||||
|
||||
TransformType Transform = sha256::Transform;
|
||||
|
||||
} // namespace
|
||||
|
||||
@ -150,10 +180,12 @@ std::string SHA256AutoDetect()
|
||||
uint32_t eax, ebx, ecx, edx;
|
||||
if (__get_cpuid(1, &eax, &ebx, &ecx, &edx) && (ecx >> 19) & 1) {
|
||||
Transform = sha256_sse4::Transform;
|
||||
assert(SelfTest(Transform));
|
||||
return "sse4";
|
||||
}
|
||||
#endif
|
||||
|
||||
assert(SelfTest(Transform));
|
||||
return "standard";
|
||||
}
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user