/*
- * Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2018-2023 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
* https://www.openssl.org/source/license.html
*/
-#include <openssl/core_numbers.h>
+#include <openssl/core_dispatch.h>
#include <openssl/core_names.h>
#include <openssl/params.h>
#include <openssl/evp.h>
#include <openssl/err.h>
+#include <openssl/proverr.h>
#include "crypto/poly1305.h"
-#include "prov/providercommonerr.h"
#include "prov/implementations.h"
+#include "prov/providercommon.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_set_ctx_params_fn poly1305_set_ctx_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;
+static OSSL_FUNC_mac_newctx_fn poly1305_new;
+static OSSL_FUNC_mac_dupctx_fn poly1305_dup;
+static OSSL_FUNC_mac_freectx_fn poly1305_free;
+static OSSL_FUNC_mac_gettable_params_fn poly1305_gettable_params;
+static OSSL_FUNC_mac_get_params_fn poly1305_get_params;
+static OSSL_FUNC_mac_settable_ctx_params_fn poly1305_settable_ctx_params;
+static OSSL_FUNC_mac_set_ctx_params_fn poly1305_set_ctx_params;
+static OSSL_FUNC_mac_init_fn poly1305_init;
+static OSSL_FUNC_mac_update_fn poly1305_update;
+static OSSL_FUNC_mac_final_fn poly1305_final;
struct poly1305_data_st {
void *provctx;
+ int updated;
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));
+ struct poly1305_data_st *ctx;
- ctx->provctx = provctx;
+ if (!ossl_prov_is_running())
+ return NULL;
+ ctx = OPENSSL_zalloc(sizeof(*ctx));
+ if (ctx != NULL)
+ ctx->provctx = provctx;
return ctx;
}
static void *poly1305_dup(void *vsrc)
{
struct poly1305_data_st *src = vsrc;
- struct poly1305_data_st *dst = poly1305_new(src->provctx);
+ struct poly1305_data_st *dst;
+ if (!ossl_prov_is_running())
+ return NULL;
+ dst = OPENSSL_malloc(sizeof(*dst));
if (dst == NULL)
return NULL;
- dst->poly1305 = src->poly1305;
+ *dst = *src;
return dst;
}
return POLY1305_DIGEST_SIZE;
}
-static int poly1305_init(void *vmacctx)
+static int poly1305_setkey(struct poly1305_data_st *ctx,
+ const unsigned char *key, size_t keylen)
{
- /* initialize the context in MAC_ctrl function */
+ if (keylen != POLY1305_KEY_SIZE) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_KEY_LENGTH);
+ return 0;
+ }
+ Poly1305_Init(&ctx->poly1305, key);
+ ctx->updated = 0;
return 1;
}
+static int poly1305_init(void *vmacctx, const unsigned char *key,
+ size_t keylen, const OSSL_PARAM params[])
+{
+ struct poly1305_data_st *ctx = vmacctx;
+
+ /* initialize the context in MAC_ctrl function */
+ if (!ossl_prov_is_running() || !poly1305_set_ctx_params(ctx, params))
+ return 0;
+ if (key != NULL)
+ return poly1305_setkey(ctx, key, keylen);
+ /* no reinitialization of context with the same key is allowed */
+ return ctx->updated == 0;
+}
+
static int poly1305_update(void *vmacctx, const unsigned char *data,
size_t datalen)
{
struct poly1305_data_st *ctx = vmacctx;
+ ctx->updated = 1;
+ if (datalen == 0)
+ return 1;
+
/* poly1305 has nothing to return in its update function */
Poly1305_Update(&ctx->poly1305, data, datalen);
return 1;
{
struct poly1305_data_st *ctx = vmacctx;
+ if (!ossl_prov_is_running())
+ return 0;
+ ctx->updated = 1;
Poly1305_Final(&ctx->poly1305, out);
+ *outl = poly1305_size();
return 1;
}
OSSL_PARAM_size_t(OSSL_MAC_PARAM_SIZE, NULL),
OSSL_PARAM_END
};
-static const OSSL_PARAM *poly1305_gettable_params(void)
+static const OSSL_PARAM *poly1305_gettable_params(void *provctx)
{
return known_gettable_params;
}
OSSL_PARAM_octet_string(OSSL_MAC_PARAM_KEY, NULL, 0),
OSSL_PARAM_END
};
-static const OSSL_PARAM *poly1305_settable_ctx_params(void)
+static const OSSL_PARAM *poly1305_settable_ctx_params(ossl_unused void *ctx,
+ ossl_unused void *provctx)
{
return known_settable_ctx_params;
}
static int poly1305_set_ctx_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);
- }
+ const OSSL_PARAM *p;
+
+ if ((p = OSSL_PARAM_locate_const(params, OSSL_MAC_PARAM_KEY)) != NULL
+ && !poly1305_setkey(ctx, p->data, p->data_size))
+ return 0;
return 1;
}
-const OSSL_DISPATCH poly1305_functions[] = {
+const OSSL_DISPATCH ossl_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_SETTABLE_CTX_PARAMS,
(void (*)(void))poly1305_settable_ctx_params },
{ OSSL_FUNC_MAC_SET_CTX_PARAMS, (void (*)(void))poly1305_set_ctx_params },
- { 0, NULL }
+ OSSL_DISPATCH_END
};
projects / openssl.git / blobdiff