+++ /dev/null
-/*
- * Copyright 2020 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/crypto.h>
-#include <openssl/core_dispatch.h>
-#include <openssl/core_names.h>
-#include <openssl/err.h>
-#include <openssl/params.h>
-#include <openssl/evp.h>
-#include <openssl/err.h>
-#include "internal/nelem.h"
-#include "internal/sizes.h"
-#include "prov/providercommon.h"
-#include "prov/implementations.h"
-#include "prov/providercommonerr.h"
-#include "prov/provider_ctx.h"
-#include "crypto/ecx.h"
-
-static OSSL_FUNC_signature_newctx_fn eddsa_newctx;
-static OSSL_FUNC_signature_digest_sign_init_fn eddsa_digest_signverify_init;
-static OSSL_FUNC_signature_digest_sign_fn ed25519_digest_sign;
-static OSSL_FUNC_signature_digest_sign_fn ed448_digest_sign;
-static OSSL_FUNC_signature_digest_verify_fn ed25519_digest_verify;
-static OSSL_FUNC_signature_digest_verify_fn ed448_digest_verify;
-static OSSL_FUNC_signature_freectx_fn eddsa_freectx;
-static OSSL_FUNC_signature_dupctx_fn eddsa_dupctx;
-
-typedef struct {
- OPENSSL_CTX *libctx;
- ECX_KEY *key;
-} PROV_EDDSA_CTX;
-
-static void *eddsa_newctx(void *provctx, const char *propq_unused)
-{
- PROV_EDDSA_CTX *peddsactx;
-
- if (!ossl_prov_is_running())
- return NULL;
-
- peddsactx = OPENSSL_zalloc(sizeof(PROV_EDDSA_CTX));
- if (peddsactx == NULL) {
- PROVerr(0, ERR_R_MALLOC_FAILURE);
- return NULL;
- }
-
- peddsactx->libctx = PROV_LIBRARY_CONTEXT_OF(provctx);
-
- return peddsactx;
-}
-
-static int eddsa_digest_signverify_init(void *vpeddsactx, const char *mdname,
- void *vedkey)
-{
- PROV_EDDSA_CTX *peddsactx = (PROV_EDDSA_CTX *)vpeddsactx;
- ECX_KEY *edkey = (ECX_KEY *)vedkey;
-
- if (!ossl_prov_is_running())
- return 0;
-
- if (mdname != NULL && mdname[0] != '\0') {
- PROVerr(0, PROV_R_INVALID_DIGEST);
- return 0;
- }
-
- if (!ecx_key_up_ref(edkey)) {
- PROVerr(0, ERR_R_INTERNAL_ERROR);
- return 0;
- }
-
- peddsactx->key = edkey;
-
- return 1;
-}
-
-int ed25519_digest_sign(void *vpeddsactx, unsigned char *sigret,
- size_t *siglen, size_t sigsize,
- const unsigned char *tbs, size_t tbslen)
-{
- PROV_EDDSA_CTX *peddsactx = (PROV_EDDSA_CTX *)vpeddsactx;
- const ECX_KEY *edkey = peddsactx->key;
-
- if (!ossl_prov_is_running())
- return 0;
-
- if (sigret == NULL) {
- *siglen = ED25519_SIGSIZE;
- return 1;
- }
- if (sigsize < ED25519_SIGSIZE) {
- PROVerr(0, PROV_R_OUTPUT_BUFFER_TOO_SMALL);
- return 0;
- }
-
- if (ED25519_sign(sigret, tbs, tbslen, edkey->pubkey, edkey->privkey,
- peddsactx->libctx, NULL) == 0) {
- PROVerr(0, PROV_R_FAILED_TO_SIGN);
- return 0;
- }
- *siglen = ED25519_SIGSIZE;
- return 1;
-}
-
-int ed448_digest_sign(void *vpeddsactx, unsigned char *sigret,
- size_t *siglen, size_t sigsize,
- const unsigned char *tbs, size_t tbslen)
-{
- PROV_EDDSA_CTX *peddsactx = (PROV_EDDSA_CTX *)vpeddsactx;
- const ECX_KEY *edkey = peddsactx->key;
-
- if (!ossl_prov_is_running())
- return 0;
-
- if (sigret == NULL) {
- *siglen = ED448_SIGSIZE;
- return 1;
- }
- if (sigsize < ED448_SIGSIZE) {
- PROVerr(0, PROV_R_OUTPUT_BUFFER_TOO_SMALL);
- return 0;
- }
-
- if (ED448_sign(peddsactx->libctx, sigret, tbs, tbslen, edkey->pubkey,
- edkey->privkey, NULL, 0) == 0) {
- PROVerr(0, PROV_R_FAILED_TO_SIGN);
- return 0;
- }
- *siglen = ED448_SIGSIZE;
- return 1;
-}
-
-int ed25519_digest_verify(void *vpeddsactx, const unsigned char *sig,
- size_t siglen, const unsigned char *tbs,
- size_t tbslen)
-{
- PROV_EDDSA_CTX *peddsactx = (PROV_EDDSA_CTX *)vpeddsactx;
- const ECX_KEY *edkey = peddsactx->key;
-
- if (!ossl_prov_is_running() || siglen != ED25519_SIGSIZE)
- return 0;
-
- return ED25519_verify(tbs, tbslen, sig, edkey->pubkey, peddsactx->libctx,
- NULL);
-}
-
-int ed448_digest_verify(void *vpeddsactx, const unsigned char *sig,
- size_t siglen, const unsigned char *tbs,
- size_t tbslen)
-{
- PROV_EDDSA_CTX *peddsactx = (PROV_EDDSA_CTX *)vpeddsactx;
- const ECX_KEY *edkey = peddsactx->key;
-
- if (!ossl_prov_is_running() || siglen != ED448_SIGSIZE)
- return 0;
-
- return ED448_verify(peddsactx->libctx, tbs, tbslen, sig, edkey->pubkey,
- NULL, 0);
-}
-
-static void eddsa_freectx(void *vpeddsactx)
-{
- PROV_EDDSA_CTX *peddsactx = (PROV_EDDSA_CTX *)vpeddsactx;
-
- ecx_key_free(peddsactx->key);
-
- OPENSSL_free(peddsactx);
-}
-
-static void *eddsa_dupctx(void *vpeddsactx)
-{
- PROV_EDDSA_CTX *srcctx = (PROV_EDDSA_CTX *)vpeddsactx;
- PROV_EDDSA_CTX *dstctx;
-
- if (!ossl_prov_is_running())
- return NULL;
-
- dstctx = OPENSSL_zalloc(sizeof(*srcctx));
- if (dstctx == NULL)
- return NULL;
-
- *dstctx = *srcctx;
- dstctx->key = NULL;
-
- if (srcctx->key != NULL && !ecx_key_up_ref(srcctx->key)) {
- PROVerr(0, ERR_R_INTERNAL_ERROR);
- goto err;
- }
- dstctx->key = srcctx->key;
-
- return dstctx;
- err:
- eddsa_freectx(dstctx);
- return NULL;
-}
-
-const OSSL_DISPATCH ed25519_signature_functions[] = {
- { OSSL_FUNC_SIGNATURE_NEWCTX, (void (*)(void))eddsa_newctx },
- { OSSL_FUNC_SIGNATURE_DIGEST_SIGN_INIT,
- (void (*)(void))eddsa_digest_signverify_init },
- { OSSL_FUNC_SIGNATURE_DIGEST_SIGN,
- (void (*)(void))ed25519_digest_sign },
- { OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_INIT,
- (void (*)(void))eddsa_digest_signverify_init },
- { OSSL_FUNC_SIGNATURE_DIGEST_VERIFY,
- (void (*)(void))ed25519_digest_verify },
- { OSSL_FUNC_SIGNATURE_FREECTX, (void (*)(void))eddsa_freectx },
- { OSSL_FUNC_SIGNATURE_DUPCTX, (void (*)(void))eddsa_dupctx },
- { 0, NULL }
-};
-
-const OSSL_DISPATCH ed448_signature_functions[] = {
- { OSSL_FUNC_SIGNATURE_NEWCTX, (void (*)(void))eddsa_newctx },
- { OSSL_FUNC_SIGNATURE_DIGEST_SIGN_INIT,
- (void (*)(void))eddsa_digest_signverify_init },
- { OSSL_FUNC_SIGNATURE_DIGEST_SIGN,
- (void (*)(void))ed448_digest_sign },
- { OSSL_FUNC_SIGNATURE_DIGEST_VERIFY_INIT,
- (void (*)(void))eddsa_digest_signverify_init },
- { OSSL_FUNC_SIGNATURE_DIGEST_VERIFY,
- (void (*)(void))ed448_digest_verify },
- { OSSL_FUNC_SIGNATURE_FREECTX, (void (*)(void))eddsa_freectx },
- { OSSL_FUNC_SIGNATURE_DUPCTX, (void (*)(void))eddsa_dupctx },
- { 0, NULL }
-};
projects / openssl.git / blobdiff