blake2b: add EVP_MAC API

[openssl.git] / crypto / include / internal / evp_int.h

diff --git a/crypto/include/internal/evp_int.h b/crypto/include/internal/evp_int.h
index 3264b3df71e8c6938fa77019fb96aad8b500da1c..e0914006ce07cd4ad3088b6ed275e0dd2ddf1041 100644 (file)
--- a/crypto/include/internal/evp_int.h
+++ b/crypto/include/internal/evp_int.h
@@ -1,7 +1,7 @@
 /*
  * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
  *
- * Licensed under the OpenSSL license (the "License").  You may not use
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html
@@ -10,6 +10,12 @@
 #include <openssl/evp.h>
 #include "internal/refcount.h"
 
+/*
+ * Don't free up md_ctx->pctx in EVP_MD_CTX_reset, use the reserved flag
+ * values in evp.h
+ */
+#define EVP_MD_CTX_FLAG_KEEP_PKEY_CTX   0x0400
+
 struct evp_pkey_ctx_st {
     /* Method associated with this operation */
     const EVP_PKEY_METHOD *pmeth;
@@ -106,6 +112,44 @@ extern const EVP_PKEY_METHOD hkdf_pkey_meth;
 extern const EVP_PKEY_METHOD poly1305_pkey_meth;
 extern const EVP_PKEY_METHOD siphash_pkey_meth;
 
+/* struct evp_mac_impl_st is defined by the implementation */
+typedef struct evp_mac_impl_st EVP_MAC_IMPL;
+struct evp_mac_st {
+    int type;
+    EVP_MAC_IMPL *(*new) (void);
+    int (*copy) (EVP_MAC_IMPL *macdst, EVP_MAC_IMPL *macsrc);
+    void (*free) (EVP_MAC_IMPL *macctx);
+    size_t (*size) (EVP_MAC_IMPL *macctx);
+    int (*init) (EVP_MAC_IMPL *macctx);
+    int (*update) (EVP_MAC_IMPL *macctx, const unsigned char *data,
+                   size_t datalen);
+    int (*final) (EVP_MAC_IMPL *macctx, unsigned char *out);
+    int (*ctrl) (EVP_MAC_IMPL *macctx, int cmd, va_list args);
+    int (*ctrl_str) (EVP_MAC_IMPL *macctx, const char *type, const char *value);
+};
+
+extern const EVP_MAC blake2b_mac_meth;
+extern const EVP_MAC cmac_meth;
+extern const EVP_MAC gmac_meth;
+extern const EVP_MAC hmac_meth;
+extern const EVP_MAC kmac128_meth;
+extern const EVP_MAC kmac256_meth;
+extern const EVP_MAC siphash_meth;
+extern const EVP_MAC poly1305_meth;
+
+/* Internal keccak algorithms used for KMAC */
+const EVP_MD *evp_keccak_kmac128(void);
+const EVP_MD *evp_keccak_kmac256(void);
+
+/*
+ * This function is internal for now, but can be made external when needed.
+ * The documentation would read:
+ *
+ * EVP_add_mac() adds the MAC implementation C<mac> to the internal
+ * object database.
+ */
+int EVP_add_mac(const EVP_MAC *mac);
+
 struct evp_md_st {
     int type;
     int pkey_type;
@@ -417,6 +461,7 @@ struct evp_pkey_st {
 
 void openssl_add_all_ciphers_int(void);
 void openssl_add_all_digests_int(void);
+void openssl_add_all_macs_int(void);
 void evp_cleanup_int(void);
 void evp_app_cleanup_int(void);