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#include "psha2.hpp"
#include "psha2_capi.h"
#include <cstdlib>
const EVP_MD *EVP_sha256(void) {
static const int one[1] = { 1 };
return &one[0];
}
size_t EVP_MD_size(const EVP_MD *e) {
if (*e == 1) return SHA256_DIGEST_LENGTH;
return 0;
}
int EVP_MD_get_size(const EVP_MD *e) {
if (*e == 1) return SHA256_DIGEST_LENGTH;
return 0;
}
EVP_MD_CTX *EVP_MD_CTX_new(void) {
return (EVP_MD_CTX *)calloc(1, sizeof(EVP_MD_CTX));
}
int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl) {
ctx->type = *type;
if (*type == 1) {
ctx->psha_256 = new PSHA2_256_Internal();
return 1;
}
return 0;
}
int EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *d, size_t cnt) {
if (ctx->type == 1) {
ctx->psha_256->append(d, cnt);
return 1;
}
return 0;
}
int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *s) {
if (ctx->type == 1) {
ctx->psha_256->finalize_bytes(md);
if (s) *s = SHA256_DIGEST_LENGTH;
return 1;
}
return 0;
}
void EVP_MD_CTX_free(EVP_MD_CTX *ctx) {
if (ctx->type == 1) {
delete ctx->psha_256;
ctx->psha_256 = nullptr;
}
free(ctx);
}
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