33 lines
742 B
C++
33 lines
742 B
C++
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#include <openssl/evp.h>
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#include <cstring>
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#include "md5.h"
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bool md5_init(MD5_CTX* ctx) {
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memset(ctx, 0, sizeof(*ctx));
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ctx->md_ctx = EVP_MD_CTX_new();
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if (!ctx->md_ctx) {
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return false;
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}
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return EVP_DigestInit_ex(ctx->md_ctx, EVP_md5(), nullptr) == 1;
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}
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bool md5_cleanup(MD5_CTX* ctx) {
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if (ctx->md_ctx != nullptr) {
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EVP_MD_CTX_free(ctx->md_ctx);
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}
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memset(ctx, 0xcc, sizeof(*ctx));
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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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EVP_DigestUpdate(ctx->md_ctx, in, len);
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}
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void md5_final(MD5_CTX* ctx, uint8_t* digest) {
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unsigned int len{MD5_DIGEST_LENGTH};
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EVP_DigestFinal_ex(ctx->md_ctx, digest, &len);
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EVP_MD_CTX_reset(ctx->md_ctx);
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}
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