+++ /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/evp.h>
-#include "internal/evp_int.h"
-#include "internal/poly1305.h"
-#include "internal/cryptlib.h"
-#include "poly1305_local.h"
-
-/* typedef EVP_MAC_IMPL */
-struct evp_mac_impl_st {
- POLY1305 *ctx; /* poly1305 context */
-};
-
-static EVP_MAC_IMPL *poly1305_new(void)
-{
- EVP_MAC_IMPL *ctx;
-
- if ((ctx = OPENSSL_zalloc(sizeof(*ctx))) == NULL
- || (ctx->ctx = OPENSSL_zalloc(sizeof(POLY1305))) == NULL) {
- OPENSSL_free(ctx);
- return 0;
- }
- return ctx;
-}
-
-static void poly1305_free(EVP_MAC_IMPL *ctx)
-{
- if (ctx != NULL) {
- OPENSSL_free(ctx->ctx);
- OPENSSL_free(ctx);
- }
-}
-
-static EVP_MAC_IMPL *poly1305_dup(const EVP_MAC_IMPL *src)
-{
- EVP_MAC_IMPL *dst;
-
- dst = poly1305_new();
- if (dst == NULL)
- return NULL;
-
- *dst->ctx = *src->ctx;
-
- return dst;
-}
-
-static size_t poly1305_size(EVP_MAC_IMPL *ctx)
-{
- return POLY1305_DIGEST_SIZE;
-}
-
-static int poly1305_init(EVP_MAC_IMPL *ctx)
-{
- /* initialize the context in MAC_ctrl function */
- return 1;
-}
-
-static int poly1305_update(EVP_MAC_IMPL *ctx, const unsigned char *data,
- size_t datalen)
-{
- POLY1305 *poly_ctx = ctx->ctx;
-
- /* poly1305 has nothing to return in its update function */
- Poly1305_Update(poly_ctx, data, datalen);
- return 1;
-}
-
-static int poly1305_final(EVP_MAC_IMPL *ctx, unsigned char *out)
-{
- POLY1305 *poly_ctx = ctx->ctx;
-
- Poly1305_Final(poly_ctx, out);
- return 1;
-}
-
-static int poly1305_ctrl(EVP_MAC_IMPL *ctx, int cmd, va_list args)
-{
- POLY1305 *poly_ctx = ctx->ctx;
- unsigned char *key;
- size_t keylen;
-
- switch (cmd) {
- case EVP_MAC_CTRL_SET_KEY:
- key = va_arg(args, unsigned char *);
- keylen = va_arg(args, size_t);
-
- if (keylen != POLY1305_KEY_SIZE) {
- EVPerr(EVP_F_POLY1305_CTRL, EVP_R_INVALID_KEY_LENGTH);
- return 0;
- }
- Poly1305_Init(poly_ctx, key);
- return 1;
- default:
- return -2;
- }
- return 1;
-}
-
-static int poly1305_ctrl_int(EVP_MAC_IMPL *ctx, int cmd, ...)
-{
- int rv;
- va_list args;
-
- va_start(args, cmd);
- rv = poly1305_ctrl(ctx, cmd, args);
- va_end(args);
-
- return rv;
-}
-
-static int poly1305_ctrl_str_cb(void *ctx, int cmd, void *buf, size_t buflen)
-{
- return poly1305_ctrl_int(ctx, cmd, buf, buflen);
-}
-
-static int poly1305_ctrl_str(EVP_MAC_IMPL *ctx,
- const char *type, const char *value)
-{
- if (value == NULL)
- return 0;
- if (strcmp(type, "key") == 0)
- return EVP_str2ctrl(poly1305_ctrl_str_cb, ctx, EVP_MAC_CTRL_SET_KEY,
- value);
- if (strcmp(type, "hexkey") == 0)
- return EVP_hex2ctrl(poly1305_ctrl_str_cb, ctx, EVP_MAC_CTRL_SET_KEY,
- value);
- return -2;
-}
-
-const EVP_MAC poly1305_meth = {
- EVP_MAC_POLY1305,
- poly1305_new,
- poly1305_dup,
- poly1305_free,
- poly1305_size,
- poly1305_init,
- poly1305_update,
- poly1305_final,
- poly1305_ctrl,
- poly1305_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_POLY1305
+
+# include <openssl/core_numbers.h>
+# include <openssl/core_names.h>
+# include <openssl/params.h>
+# include <openssl/evp.h>
+# include <openssl/err.h>
+
+# include "internal/poly1305.h"
+/*
+ * TODO(3.0) when poly1305 has moved entirely to our providers, this
+ * header should be moved to the provider include directory. For the
+ * moment, crypto/poly1305/poly1305_ameth.c has us stuck.
+ */
+# include "../../../crypto/poly1305/poly1305_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 poly1305_new;
+static OSSL_OP_mac_dupctx_fn poly1305_dup;
+static OSSL_OP_mac_freectx_fn poly1305_free;
+static OSSL_OP_mac_gettable_params_fn poly1305_gettable_params;
+static OSSL_OP_mac_get_params_fn poly1305_get_params;
+static OSSL_OP_mac_settable_ctx_params_fn poly1305_settable_ctx_params;
+static OSSL_OP_mac_ctx_set_params_fn poly1305_ctx_set_params;
+static OSSL_OP_mac_init_fn poly1305_init;
+static OSSL_OP_mac_update_fn poly1305_update;
+static OSSL_OP_mac_final_fn poly1305_final;
+
+struct poly1305_data_st {
+ void *provctx;
+ POLY1305 poly1305; /* Poly1305 data */
+};
+
+static size_t poly1305_size(void);
+
+static void *poly1305_new(void *provctx)
+{
+ struct poly1305_data_st *ctx = OPENSSL_zalloc(sizeof(*ctx));
+
+ ctx->provctx = provctx;
+ return ctx;
+}
+
+static void poly1305_free(void *vmacctx)
+{
+ OPENSSL_free(vmacctx);
+}
+
+static void *poly1305_dup(void *vsrc)
+{
+ struct poly1305_data_st *src = vsrc;
+ struct poly1305_data_st *dst = poly1305_new(src->provctx);
+
+ if (dst == NULL)
+ return NULL;
+
+ dst->poly1305 = src->poly1305;
+ return dst;
+}
+
+static size_t poly1305_size(void)
+{
+ return POLY1305_DIGEST_SIZE;
+}
+
+static int poly1305_init(void *vmacctx)
+{
+ /* initialize the context in MAC_ctrl function */
+ return 1;
+}
+
+static int poly1305_update(void *vmacctx, const unsigned char *data,
+ size_t datalen)
+{
+ struct poly1305_data_st *ctx = vmacctx;
+
+ /* poly1305 has nothing to return in its update function */
+ Poly1305_Update(&ctx->poly1305, data, datalen);
+ return 1;
+}
+
+static int poly1305_final(void *vmacctx, unsigned char *out, size_t *outl,
+ size_t outsize)
+{
+ struct poly1305_data_st *ctx = vmacctx;
+
+ Poly1305_Final(&ctx->poly1305, out);
+ return 1;
+}
+
+static const OSSL_PARAM known_gettable_params[] = {
+ OSSL_PARAM_size_t(OSSL_MAC_PARAM_OUTLEN, NULL),
+ OSSL_PARAM_size_t(OSSL_MAC_PARAM_SIZE, NULL), /* Same as "outlen" */
+ OSSL_PARAM_END
+};
+static const OSSL_PARAM *poly1305_gettable_params(void)
+{
+ return known_gettable_params;
+}
+
+static int poly1305_get_params(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)
+ return OSSL_PARAM_set_size_t(p, poly1305_size());
+
+ return 1;
+}
+
+static const OSSL_PARAM known_settable_ctx_params[] = {
+ OSSL_PARAM_octet_string(OSSL_MAC_PARAM_KEY, NULL, 0),
+ OSSL_PARAM_END
+};
+static const OSSL_PARAM *poly1305_settable_ctx_params(void)
+{
+ return known_settable_ctx_params;
+}
+
+static int poly1305_ctx_set_params(void *vmacctx, const OSSL_PARAM *params)
+{
+ struct poly1305_data_st *ctx = vmacctx;
+ const OSSL_PARAM *p = NULL;
+
+ if ((p = OSSL_PARAM_locate_const(params, OSSL_MAC_PARAM_KEY)) != NULL) {
+ if (p->data_type != OSSL_PARAM_OCTET_STRING
+ || p->data_size != POLY1305_KEY_SIZE) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_KEY_LENGTH);
+ return 0;
+ }
+ Poly1305_Init(&ctx->poly1305, p->data);
+ }
+ return 1;
+}
+
+const OSSL_DISPATCH poly1305_functions[] = {
+ { OSSL_FUNC_MAC_NEWCTX, (void (*)(void))poly1305_new },
+ { OSSL_FUNC_MAC_DUPCTX, (void (*)(void))poly1305_dup },
+ { OSSL_FUNC_MAC_FREECTX, (void (*)(void))poly1305_free },
+ { OSSL_FUNC_MAC_INIT, (void (*)(void))poly1305_init },
+ { OSSL_FUNC_MAC_UPDATE, (void (*)(void))poly1305_update },
+ { OSSL_FUNC_MAC_FINAL, (void (*)(void))poly1305_final },
+ { OSSL_FUNC_MAC_GETTABLE_PARAMS, (void (*)(void))poly1305_gettable_params },
+ { OSSL_FUNC_MAC_GET_PARAMS, (void (*)(void))poly1305_get_params },
+ { OSSL_FUNC_MAC_SETTABLE_CTX_PARAMS,
+ (void (*)(void))poly1305_settable_ctx_params },
+ { OSSL_FUNC_MAC_CTX_SET_PARAMS, (void (*)(void))poly1305_ctx_set_params },
+ { 0, NULL }
+};
+
+#endif
projects / oweals / openssl.git / commitdiff