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core: C++-ify SHA1 interface

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All callers of the SHA1 code are C++. Might just as well use
a C++ like interface.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2024-04-23 21:30:40 +08:00 • committed by bstoeger
parent 729356e0b1
commit 21f68387ae
6 changed files with 71 additions and 78 deletions
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29
core/sha1.h
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@ -9,31 +9,28 @@
#define SHA1_H
#ifdef __cplusplus
extern "C" {
#endif
typedef struct
#include <array>
#include <string>
struct SHA1
{
SHA1();
void update(const void *dataIn, unsigned long len);
void update(const std::string &s);
// Note: the hash() functions change state. Call only once.
std::array<unsigned char, 20> hash();
uint32_t hash_uint32(); // Return first 4 bytes of hash interpreted
// as little-endian unsigned integer.
private:
unsigned long long size;
unsigned int H[5];
unsigned int W[16];
} blk_SHA_CTX;
void blk_SHA1_Init(blk_SHA_CTX *ctx);
void blk_SHA1_Update(blk_SHA_CTX *ctx, const void *dataIn, unsigned long len);
void blk_SHA1_Final(unsigned char hashout[20], blk_SHA_CTX *ctx);
/* Make us use the standard names */
#define SHA_CTX blk_SHA_CTX
#define SHA1_Init blk_SHA1_Init
#define SHA1_Update blk_SHA1_Update
#define SHA1_Final blk_SHA1_Final
};
/* Helper function that calculates an SHA1 has and returns the first 4 bytes as uint32_t */
uint32_t SHA1_uint32(const void *dataIn, unsigned long len);
#ifdef __cplusplus
}
#endif
#endif // SHA1_H