#ifndef HEADER_HMAC_H
#define HEADER_HMAC_H
+#include <openssl/opensslconf.h>
+
#ifdef OPENSSL_NO_HMAC
#error HMAC is disabled.
#endif
#include <openssl/evp.h>
-#define HMAC_MAX_MD_CBLOCK 64
+#define HMAC_MAX_MD_CBLOCK 128 /* largest known is SHA512 */
#ifdef __cplusplus
extern "C" {
#define HMAC_size(e) (EVP_MD_size((e)->md))
+void HMAC_CTX_init(HMAC_CTX *ctx);
+void HMAC_CTX_cleanup(HMAC_CTX *ctx);
+
+#define HMAC_cleanup(ctx) HMAC_CTX_cleanup(ctx) /* deprecated */
+
void HMAC_Init(HMAC_CTX *ctx, const void *key, int len,
- const EVP_MD *md);
-void HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, int len);
+ const EVP_MD *md); /* deprecated */
+void HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len,
+ const EVP_MD *md, ENGINE *impl);
+void HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, size_t len);
void HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len);
-void HMAC_cleanup(HMAC_CTX *ctx);
unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len,
- const unsigned char *d, int n, unsigned char *md,
+ const unsigned char *d, size_t n, unsigned char *md,
unsigned int *md_len);