diff --git a/src/bucket_metadata.c b/src/bucket_metadata.c
index 05f3e67..3a9db98 100644
--- a/src/bucket_metadata.c
+++ b/src/bucket_metadata.c
@@ -38,6 +38,23 @@
#include <openssl/bio.h>
#include <openssl/evp.h>
#include <openssl/buffer.h>
+
+#if (OPENSSL_VERSION_NUMBER < 0x10100000L)
+static EVP_MD_CTX* EVP_MD_CTX_new(void) {
+ EVP_MD_CTX* ctx = (EVP_MD_CTX*)malloc(sizeof(EVP_MD_CTX));
+ if(ctx) {
+ EVP_MD_CTX_init(ctx);
+ }
+ return ctx;
+}
+
+static void EVP_MD_CTX_free(EVP_MD_CTX* ctx) {
+ if(ctx) {
+ EVP_MD_CTX_cleanup(ctx);
+ free(ctx);
+ }
+}
+#endif
#endif
#include "libs3.h"
@@ -486,16 +503,17 @@ void S3_get_lifecycle(const S3BucketContext *bucketContext,
// Calculate MD5 and encode it as base64
void generate_content_md5(const char* data, int size,
char* retBuffer, int retBufferSize) {
- MD5_CTX mdContext;
+ EVP_MD_CTX *mdContext;
BIO *bio, *b64;
BUF_MEM *bufferPtr;
char md5Buffer[MD5_DIGEST_LENGTH];
- MD5_Init(&mdContext);
- MD5_Update(&mdContext, data, size);
- MD5_Final((unsigned char*)md5Buffer, &mdContext);
-
+ mdContext = EVP_MD_CTX_new();
+ EVP_DigestInit_ex(mdContext, EVP_md5(), NULL);
+ EVP_DigestUpdate(mdContext, data, size);
+ EVP_DigestFinal_ex(mdContext, (unsigned char*)md5Buffer, NULL);
+ EVP_MD_CTX_free(mdContext);
b64 = BIO_new(BIO_f_base64());
bio = BIO_new(BIO_s_mem());