Move CMAC to providers

[openssl.git] / crypto / cmac / cm_meth.c

diff --git a/crypto/cmac/cm_meth.c b/crypto/cmac/cm_meth.c
deleted file mode 100644 (file)
index 07acf05..0000000
--- a/crypto/cmac/cm_meth.c
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- * Copyright 2018 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 <stdio.h>
-#include "internal/cryptlib.h"
-#include <openssl/x509.h>
-#include <openssl/x509v3.h>
-#include <openssl/evp.h>
-#include <openssl/cmac.h>
-#include "internal/evp_int.h"
-
-/* local CMAC pkey structure */
-
-/* typedef EVP_MAC_IMPL */
-struct evp_mac_impl_st {
-    /* tmpcipher and tmpengine are set to NULL after a CMAC_Init call */
-    const EVP_CIPHER *tmpcipher; /* cached CMAC cipher */
-    const ENGINE *tmpengine;     /* cached CMAC cipher engine */
-    CMAC_CTX *ctx;
-};
-
-static EVP_MAC_IMPL *cmac_new(void)
-{
-    EVP_MAC_IMPL *cctx;
-
-    if ((cctx = OPENSSL_zalloc(sizeof(*cctx))) == NULL
-        || (cctx->ctx = CMAC_CTX_new()) == NULL) {
-        OPENSSL_free(cctx);
-        cctx = NULL;
-    }
-
-    return cctx;
-}
-
-static void cmac_free(EVP_MAC_IMPL *cctx)
-{
-    if (cctx != NULL) {
-        CMAC_CTX_free(cctx->ctx);
-        OPENSSL_free(cctx);
-    }
-}
-
-static EVP_MAC_IMPL *cmac_dup(const EVP_MAC_IMPL *csrc)
-{
-    EVP_MAC_IMPL *cdst = cmac_new();
-
-    if (cdst == NULL)
-        return NULL;
-
-    if (!CMAC_CTX_copy(cdst->ctx, csrc->ctx)) {
-        cmac_free(cdst);
-        return NULL;
-    }
-
-    cdst->tmpengine = csrc->tmpengine;
-    cdst->tmpcipher = csrc->tmpcipher;
-
-    return cdst;
-}
-
-static size_t cmac_size(EVP_MAC_IMPL *cctx)
-{
-    return EVP_CIPHER_CTX_block_size(CMAC_CTX_get0_cipher_ctx(cctx->ctx));
-}
-
-static int cmac_init(EVP_MAC_IMPL *cctx)
-{
-    int rv = CMAC_Init(cctx->ctx, NULL, 0, cctx->tmpcipher,
-                       (ENGINE *)cctx->tmpengine);
-    cctx->tmpcipher = NULL;
-    cctx->tmpengine = NULL;
-
-    return rv;
-}
-
-static int cmac_update(EVP_MAC_IMPL *cctx, const unsigned char *data,
-                       size_t datalen)
-{
-    return CMAC_Update(cctx->ctx, data, datalen);
-}
-
-static int cmac_final(EVP_MAC_IMPL *cctx, unsigned char *out)
-{
-    size_t hlen;
-
-    return CMAC_Final(cctx->ctx, out, &hlen);
-}
-
-static int cmac_ctrl(EVP_MAC_IMPL *cctx, int cmd, va_list args)
-{
-    switch (cmd) {
-    case EVP_MAC_CTRL_SET_KEY:
-        {
-            const unsigned char *key = va_arg(args, const unsigned char *);
-            size_t keylen = va_arg(args, size_t);
-            int rv = CMAC_Init(cctx->ctx, key, keylen, cctx->tmpcipher,
-                               (ENGINE *)cctx->tmpengine);
-
-            cctx->tmpcipher = NULL;
-            cctx->tmpengine = NULL;
-
-            return rv;
-        }
-        break;
-    case EVP_MAC_CTRL_SET_CIPHER:
-        cctx->tmpcipher = va_arg(args, const EVP_CIPHER *);
-        break;
-    case EVP_MAC_CTRL_SET_ENGINE:
-        cctx->tmpengine = va_arg(args, const ENGINE *);
-        break;
-    default:
-        return -2;
-    }
-    return 1;
-}
-
-static int cmac_ctrl_int(EVP_MAC_IMPL *hctx, int cmd, ...)
-{
-    int rv;
-    va_list args;
-
-    va_start(args, cmd);
-    rv = cmac_ctrl(hctx, cmd, args);
-    va_end(args);
-
-    return rv;
-}
-
-static int cmac_ctrl_str_cb(void *hctx, int cmd, void *buf, size_t buflen)
-{
-    return cmac_ctrl_int(hctx, cmd, buf, buflen);
-}
-
-static int cmac_ctrl_str(EVP_MAC_IMPL *cctx, const char *type,
-                         const char *value)
-{
-    if (!value)
-        return 0;
-    if (strcmp(type, "cipher") == 0) {
-        const EVP_CIPHER *c = EVP_get_cipherbyname(value);
-
-        if (c == NULL)
-            return 0;
-        return cmac_ctrl_int(cctx, EVP_MAC_CTRL_SET_CIPHER, c);
-    }
-    if (strcmp(type, "key") == 0)
-        return EVP_str2ctrl(cmac_ctrl_str_cb, cctx, EVP_MAC_CTRL_SET_KEY,
-                            value);
-    if (strcmp(type, "hexkey") == 0)
-        return EVP_hex2ctrl(cmac_ctrl_str_cb, cctx, EVP_MAC_CTRL_SET_KEY,
-                            value);
-    return -2;
-}
-
-const EVP_MAC cmac_meth = {
-    EVP_MAC_CMAC,
-    cmac_new,
-    cmac_dup,
-    cmac_free,
-    cmac_size,
-    cmac_init,
-    cmac_update,
-    cmac_final,
-    cmac_ctrl,
-    cmac_ctrl_str
-};