+++ /dev/null
-/*
- * 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 <stdarg.h>
-#include <string.h>
-#include <openssl/evp.h>
-#include <openssl/err.h>
-#include "internal/siphash.h"
-#include "siphash_local.h"
-#include "internal/evp_int.h"
-
-/* local SIPHASH structure is actually a SIPHASH */
-
-struct evp_mac_impl_st {
- SIPHASH ctx;
-};
-
-static EVP_MAC_IMPL *siphash_new(void)
-{
- return OPENSSL_zalloc(sizeof(EVP_MAC_IMPL));
-}
-
-static void siphash_free(EVP_MAC_IMPL *sctx)
-{
- OPENSSL_free(sctx);
-}
-
-static EVP_MAC_IMPL *siphash_dup(const EVP_MAC_IMPL *ssrc)
-{
- EVP_MAC_IMPL *sdst;
-
- sdst = siphash_new();
- if (sdst == NULL)
- return NULL;
-
- *sdst = *ssrc;
-
- return sdst;
-}
-
-static size_t siphash_size(EVP_MAC_IMPL *sctx)
-{
- return SipHash_hash_size(&sctx->ctx);
-}
-
-static int siphash_init(EVP_MAC_IMPL *sctx)
-{
- /* Not much to do here, actual initialization happens through controls */
- return 1;
-}
-
-static int siphash_update(EVP_MAC_IMPL *sctx, const unsigned char *data,
- size_t datalen)
-{
- SipHash_Update(&sctx->ctx, data, datalen);
- return 1;
-}
-
-static int siphash_final(EVP_MAC_IMPL *sctx, unsigned char *out)
-{
- size_t hlen = siphash_size(sctx);
-
- return SipHash_Final(&sctx->ctx, out, hlen);
-}
-
-static int siphash_ctrl(EVP_MAC_IMPL *sctx, int cmd, va_list args)
-{
- switch (cmd) {
- case EVP_MAC_CTRL_SET_SIZE:
- {
- size_t size = va_arg(args, size_t);
-
- return SipHash_set_hash_size(&sctx->ctx, size);
- }
- break;
- case EVP_MAC_CTRL_SET_KEY:
- {
- const unsigned char *key = va_arg(args, const unsigned char *);
- size_t keylen = va_arg(args, size_t);
-
- if (key == NULL || keylen != SIPHASH_KEY_SIZE)
- return 0;
-
- return SipHash_Init(&sctx->ctx, key, 0, 0);
- }
- break;
- default:
- return -2;
- }
- return 1;
-}
-
-static int siphash_ctrl_int(EVP_MAC_IMPL *sctx, int cmd, ...)
-{
- int rv;
- va_list args;
-
- va_start(args, cmd);
- rv = siphash_ctrl(sctx, cmd, args);
- va_end(args);
-
- return rv;
-}
-
-static int siphash_ctrl_str_cb(void *ctx, int cmd, void *buf, size_t buflen)
-{
- return siphash_ctrl_int(ctx, cmd, buf, buflen);
-}
-
-static int siphash_ctrl_str(EVP_MAC_IMPL *ctx,
- const char *type, const char *value)
-{
- if (value == NULL)
- return 0;
- if (strcmp(type, "digestsize") == 0) {
- size_t hash_size = atoi(value);
-
- return siphash_ctrl_int(ctx, EVP_MAC_CTRL_SET_SIZE, hash_size);
- }
- if (strcmp(type, "key") == 0)
- return EVP_str2ctrl(siphash_ctrl_str_cb, ctx, EVP_MAC_CTRL_SET_KEY,
- value);
- if (strcmp(type, "hexkey") == 0)
- return EVP_hex2ctrl(siphash_ctrl_str_cb, ctx, EVP_MAC_CTRL_SET_KEY,
- value);
- return -2;
-}
-
-const EVP_MAC siphash_meth = {
- EVP_MAC_SIPHASH,
- siphash_new,
- siphash_dup,
- siphash_free,
- siphash_size,
- siphash_init,
- siphash_update,
- siphash_final,
- siphash_ctrl,
- siphash_ctrl_str
-};
--- /dev/null
+/*
+ * 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 <openssl/opensslconf.h>
+#ifndef OPENSSL_NO_SIPHASH
+
+# include <string.h>
+# include <openssl/core_numbers.h>
+# include <openssl/core_names.h>
+# include <openssl/params.h>
+# include <openssl/evp.h>
+# include <openssl/err.h>
+
+# include "internal/siphash.h"
+/*
+ * TODO(3.0) when siphash has moved entirely to our providers, this
+ * header should be moved to the provider include directory. For the
+ * moment, crypto/siphash/siphash_ameth.c has us stuck.
+ */
+# include "../../../crypto/siphash/siphash_local.h"
+
+# include "internal/providercommonerr.h"
+# include "internal/provider_algs.h"
+
+/*
+ * Forward declaration of everything implemented here. This is not strictly
+ * necessary for the compiler, but provides an assurance that the signatures
+ * of the functions in the dispatch table are correct.
+ */
+static OSSL_OP_mac_newctx_fn siphash_new;
+static OSSL_OP_mac_dupctx_fn siphash_dup;
+static OSSL_OP_mac_freectx_fn siphash_free;
+static OSSL_OP_mac_gettable_ctx_params_fn siphash_gettable_ctx_params;
+static OSSL_OP_mac_ctx_get_params_fn siphash_ctx_get_params;
+static OSSL_OP_mac_settable_ctx_params_fn siphash_settable_params;
+static OSSL_OP_mac_ctx_set_params_fn siphash_set_params;
+static OSSL_OP_mac_size_fn siphash_size;
+static OSSL_OP_mac_init_fn siphash_init;
+static OSSL_OP_mac_update_fn siphash_update;
+static OSSL_OP_mac_final_fn siphash_final;
+
+struct siphash_data_st {
+ void *provctx;
+ SIPHASH siphash; /* Siphash data */
+};
+
+static void *siphash_new(void *provctx)
+{
+ struct siphash_data_st *ctx = OPENSSL_zalloc(sizeof(*ctx));
+
+ ctx->provctx = provctx;
+ return ctx;
+}
+
+static void siphash_free(void *vmacctx)
+{
+ OPENSSL_free(vmacctx);
+}
+
+static void *siphash_dup(void *vsrc)
+{
+ struct siphash_data_st *ssrc = vsrc;
+ struct siphash_data_st *sdst = siphash_new(ssrc->provctx);
+
+ if (sdst == NULL)
+ return NULL;
+
+ sdst->siphash = ssrc->siphash;
+ return sdst;
+}
+
+static size_t siphash_size(void *vmacctx)
+{
+ struct siphash_data_st *ctx = vmacctx;
+
+ return SipHash_hash_size(&ctx->siphash);
+}
+
+static int siphash_init(void *vmacctx)
+{
+ /* Not much to do here, actual initialization happens through controls */
+ return 1;
+}
+
+static int siphash_update(void *vmacctx, const unsigned char *data,
+ size_t datalen)
+{
+ struct siphash_data_st *ctx = vmacctx;
+
+ SipHash_Update(&ctx->siphash, data, datalen);
+ return 1;
+}
+
+static int siphash_final(void *vmacctx, unsigned char *out, size_t *outl,
+ size_t outsize)
+{
+ struct siphash_data_st *ctx = vmacctx;
+ size_t hlen = siphash_size(ctx);
+
+ if (outsize < hlen)
+ return 0;
+
+ *outl = hlen;
+ return SipHash_Final(&ctx->siphash, out, hlen);
+}
+
+static const OSSL_PARAM known_gettable_ctx_params[] = {
+ OSSL_PARAM_size_t(OSSL_MAC_PARAM_OUTLEN, NULL),
+ OSSL_PARAM_size_t(OSSL_MAC_PARAM_SIZE, NULL), /* Same as "outlen" */
+ OSSL_PARAM_size_t(OSSL_MAC_PARAM_DIGESTSIZE, NULL), /* Same as "outlen" */
+ OSSL_PARAM_END
+};
+static const OSSL_PARAM *siphash_gettable_ctx_params(void)
+{
+ return known_gettable_ctx_params;
+}
+
+static int siphash_ctx_get_params(void *vmacctx, OSSL_PARAM params[])
+{
+ OSSL_PARAM *p;
+
+ if ((p = OSSL_PARAM_locate(params, OSSL_MAC_PARAM_OUTLEN)) != NULL
+ || (p = OSSL_PARAM_locate(params, OSSL_MAC_PARAM_SIZE)) != NULL
+ || (p = OSSL_PARAM_locate(params, OSSL_MAC_PARAM_DIGESTSIZE)) != NULL)
+ return OSSL_PARAM_set_size_t(p, siphash_size(vmacctx));
+
+ return 1;
+}
+
+static const OSSL_PARAM known_settable_ctx_params[] = {
+ OSSL_PARAM_size_t(OSSL_MAC_PARAM_OUTLEN, NULL),
+ OSSL_PARAM_size_t(OSSL_MAC_PARAM_SIZE, NULL), /* Same as "outlen" */
+ OSSL_PARAM_size_t(OSSL_MAC_PARAM_DIGESTSIZE, NULL), /* Same as "outlen" */
+ OSSL_PARAM_octet_string(OSSL_MAC_PARAM_KEY, NULL, 0),
+ OSSL_PARAM_END
+};
+static const OSSL_PARAM *siphash_settable_params(void)
+{
+ return known_settable_ctx_params;
+}
+
+static int siphash_set_params(void *vmacctx, const OSSL_PARAM *params)
+{
+ struct siphash_data_st *ctx = vmacctx;
+ const OSSL_PARAM *p = NULL;
+
+ if ((p = OSSL_PARAM_locate_const(params, OSSL_MAC_PARAM_OUTLEN)) != NULL
+ || ((p = OSSL_PARAM_locate_const(params, OSSL_MAC_PARAM_DIGESTSIZE))
+ != NULL)
+ || ((p = OSSL_PARAM_locate_const(params, OSSL_MAC_PARAM_SIZE))
+ != NULL)) {
+ size_t size;
+
+ if (!OSSL_PARAM_get_size_t(p, &size)
+ || !SipHash_set_hash_size(&ctx->siphash, size))
+ return 0;
+ }
+ if ((p = OSSL_PARAM_locate_const(params, OSSL_MAC_PARAM_KEY)) != NULL)
+ if (p->data_type != OSSL_PARAM_OCTET_STRING
+ || p->data_size != SIPHASH_KEY_SIZE
+ || !SipHash_Init(&ctx->siphash, p->data, 0, 0))
+ return 0;
+ return 1;
+}
+
+const OSSL_DISPATCH siphash_functions[] = {
+ { OSSL_FUNC_MAC_NEWCTX, (void (*)(void))siphash_new },
+ { OSSL_FUNC_MAC_DUPCTX, (void (*)(void))siphash_dup },
+ { OSSL_FUNC_MAC_FREECTX, (void (*)(void))siphash_free },
+ { OSSL_FUNC_MAC_INIT, (void (*)(void))siphash_init },
+ { OSSL_FUNC_MAC_UPDATE, (void (*)(void))siphash_update },
+ { OSSL_FUNC_MAC_FINAL, (void (*)(void))siphash_final },
+ { OSSL_FUNC_MAC_GETTABLE_CTX_PARAMS,
+ (void (*)(void))siphash_gettable_ctx_params },
+ { OSSL_FUNC_MAC_CTX_GET_PARAMS, (void (*)(void))siphash_ctx_get_params },
+ { OSSL_FUNC_MAC_SETTABLE_CTX_PARAMS,
+ (void (*)(void))siphash_settable_params },
+ { OSSL_FUNC_MAC_CTX_SET_PARAMS, (void (*)(void))siphash_set_params },
+ { 0, NULL }
+};
+
+#endif
projects / oweals / openssl.git / commitdiff