Latest update.

providers/implementations/ciphers/cipher_aes_siv.h

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+/*
+ * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * 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
+ */
+
+#include "prov/ciphercommon.h"
+#include "crypto/aes_platform.h"
+#include "crypto/siv.h"
+
+typedef struct prov_cipher_hw_aes_siv_st {
+    int (*initkey)(void *ctx, const uint8_t *key, size_t keylen);
+    int (*cipher)(void *ctx, unsigned char *out, const unsigned char *in,
+                  size_t len);
+    void (*setspeed)(void *ctx, int speed);
+    int (*settag)(void *ctx, const unsigned char *tag, size_t tagl);
+    void (*cleanup)(void *ctx);
+} PROV_CIPHER_HW_AES_SIV;
+
+typedef struct prov_siv_ctx_st {
+    unsigned int mode;       /* The mode that we are using */
+    unsigned int enc : 1;    /* Set to 1 if we are encrypting or 0 otherwise */
+    uint64_t flags;
+    size_t keylen;           /* The input keylength (twice the alg key length) */
+    size_t taglen;           /* the taglen is the same as the sivlen */
+    SIV128_CONTEXT siv;
+    EVP_CIPHER *ctr;        /* These are fetched - so we need to free them */
+    EVP_CIPHER *cbc;
+    const PROV_CIPHER_HW_AES_SIV *hw;
+} PROV_AES_SIV_CTX;
+
+const PROV_CIPHER_HW_AES_SIV *PROV_CIPHER_HW_aes_siv(size_t keybits);