36 lines
904 B
C++
36 lines
904 B
C++
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#include "md5.h"
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bool md5_init(MD5_CTX* ctx) {
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if (!CryptAcquireContext(&ctx->hProv, nullptr, nullptr, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) {
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return false;
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}
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// Create the hash object
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if (!CryptCreateHash(ctx->hProv, CALG_MD5, 0, 0, &ctx->hHash)) {
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CryptReleaseContext(ctx->hProv, 0);
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return false;
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}
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return true;
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}
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void md5_update(MD5_CTX* ctx, const uint8_t* in, size_t len) {
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CryptHashData(ctx->hHash, in, static_cast<DWORD>(len), 0);
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}
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void md5_final(MD5_CTX* ctx, uint8_t* digest) {
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DWORD dataLen = MD5_DIGEST_LENGTH;
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CryptGetHashParam(ctx->hHash, HP_HASHVAL, digest, &dataLen, 0);
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CryptDestroyHash(ctx->hHash);
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ctx->hHash = 0;
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}
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bool md5_cleanup(MD5_CTX* ctx) {
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if (ctx->hHash) {
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CryptDestroyHash(ctx->hHash);
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}
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CryptReleaseContext(ctx->hProv, 0);
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memset(ctx, 0, sizeof(MD5_CTX));
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return true;
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}
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