Openssl 1.1.0h
This commit is contained in:
Hakase
@@ -0,0 +1,3 @@
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LIBS=../../libcrypto
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SOURCE[../../libcrypto]=\
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hmac.c hm_ameth.c hm_pmeth.c
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@@ -0,0 +1,125 @@
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/*
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* Copyright 2007-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include "internal/cryptlib.h"
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#include <openssl/evp.h>
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#include "internal/asn1_int.h"
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#define HMAC_TEST_PRIVATE_KEY_FORMAT
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/*
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* HMAC "ASN1" method. This is just here to indicate the maximum HMAC output
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* length and to free up an HMAC key.
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*/
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static int hmac_size(const EVP_PKEY *pkey)
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{
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return EVP_MAX_MD_SIZE;
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}
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static void hmac_key_free(EVP_PKEY *pkey)
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{
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ASN1_OCTET_STRING *os = EVP_PKEY_get0(pkey);
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if (os) {
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if (os->data)
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OPENSSL_cleanse(os->data, os->length);
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ASN1_OCTET_STRING_free(os);
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}
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}
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static int hmac_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)
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{
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switch (op) {
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case ASN1_PKEY_CTRL_DEFAULT_MD_NID:
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*(int *)arg2 = NID_sha256;
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return 1;
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default:
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return -2;
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}
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}
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static int hmac_pkey_public_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
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{
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return ASN1_OCTET_STRING_cmp(EVP_PKEY_get0(a), EVP_PKEY_get0(b));
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}
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#ifdef HMAC_TEST_PRIVATE_KEY_FORMAT
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/*
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* A bogus private key format for test purposes. This is simply the HMAC key
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* with "HMAC PRIVATE KEY" in the headers. When enabled the genpkey utility
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* can be used to "generate" HMAC keys.
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*/
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static int old_hmac_decode(EVP_PKEY *pkey,
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const unsigned char **pder, int derlen)
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{
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ASN1_OCTET_STRING *os;
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os = ASN1_OCTET_STRING_new();
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if (os == NULL || !ASN1_OCTET_STRING_set(os, *pder, derlen))
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goto err;
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if (!EVP_PKEY_assign(pkey, EVP_PKEY_HMAC, os))
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goto err;
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return 1;
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err:
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ASN1_OCTET_STRING_free(os);
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return 0;
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}
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static int old_hmac_encode(const EVP_PKEY *pkey, unsigned char **pder)
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{
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int inc;
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ASN1_OCTET_STRING *os = EVP_PKEY_get0(pkey);
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if (pder) {
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if (!*pder) {
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*pder = OPENSSL_malloc(os->length);
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if (*pder == NULL)
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return -1;
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inc = 0;
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} else
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inc = 1;
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memcpy(*pder, os->data, os->length);
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if (inc)
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*pder += os->length;
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}
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return os->length;
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}
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#endif
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const EVP_PKEY_ASN1_METHOD hmac_asn1_meth = {
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EVP_PKEY_HMAC,
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EVP_PKEY_HMAC,
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0,
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"HMAC",
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"OpenSSL HMAC method",
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0, 0, hmac_pkey_public_cmp, 0,
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0, 0, 0,
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hmac_size,
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0, 0,
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0, 0, 0, 0, 0, 0, 0,
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hmac_key_free,
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hmac_pkey_ctrl,
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#ifdef HMAC_TEST_PRIVATE_KEY_FORMAT
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old_hmac_decode,
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old_hmac_encode
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#else
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0, 0
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#endif
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};
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@@ -0,0 +1,210 @@
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/*
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* Copyright 2007-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include "internal/cryptlib.h"
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#include <openssl/x509.h>
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#include <openssl/x509v3.h>
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#include <openssl/evp.h>
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#include <openssl/hmac.h>
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#include "internal/evp_int.h"
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/* HMAC pkey context structure */
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typedef struct {
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const EVP_MD *md; /* MD for HMAC use */
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ASN1_OCTET_STRING ktmp; /* Temp storage for key */
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HMAC_CTX *ctx;
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} HMAC_PKEY_CTX;
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static int pkey_hmac_init(EVP_PKEY_CTX *ctx)
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{
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HMAC_PKEY_CTX *hctx;
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hctx = OPENSSL_zalloc(sizeof(*hctx));
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if (hctx == NULL)
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return 0;
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hctx->ktmp.type = V_ASN1_OCTET_STRING;
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hctx->ctx = HMAC_CTX_new();
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if (hctx->ctx == NULL) {
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OPENSSL_free(hctx);
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return 0;
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}
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ctx->data = hctx;
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ctx->keygen_info_count = 0;
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return 1;
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}
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static void pkey_hmac_cleanup(EVP_PKEY_CTX *ctx);
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static int pkey_hmac_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
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{
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HMAC_PKEY_CTX *sctx, *dctx;
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/* allocate memory for dst->data and a new HMAC_CTX in dst->data->ctx */
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if (!pkey_hmac_init(dst))
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return 0;
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sctx = EVP_PKEY_CTX_get_data(src);
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dctx = EVP_PKEY_CTX_get_data(dst);
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dctx->md = sctx->md;
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if (!HMAC_CTX_copy(dctx->ctx, sctx->ctx))
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goto err;
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if (sctx->ktmp.data) {
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if (!ASN1_OCTET_STRING_set(&dctx->ktmp,
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sctx->ktmp.data, sctx->ktmp.length))
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goto err;
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}
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return 1;
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err:
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/* release HMAC_CTX in dst->data->ctx and memory allocated for dst->data */
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pkey_hmac_cleanup (dst);
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return 0;
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}
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static void pkey_hmac_cleanup(EVP_PKEY_CTX *ctx)
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{
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HMAC_PKEY_CTX *hctx = EVP_PKEY_CTX_get_data(ctx);
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if (hctx != NULL) {
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HMAC_CTX_free(hctx->ctx);
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OPENSSL_clear_free(hctx->ktmp.data, hctx->ktmp.length);
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OPENSSL_free(hctx);
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EVP_PKEY_CTX_set_data(ctx, NULL);
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}
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}
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static int pkey_hmac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
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{
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ASN1_OCTET_STRING *hkey = NULL;
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HMAC_PKEY_CTX *hctx = ctx->data;
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if (!hctx->ktmp.data)
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return 0;
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hkey = ASN1_OCTET_STRING_dup(&hctx->ktmp);
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if (!hkey)
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return 0;
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EVP_PKEY_assign(pkey, EVP_PKEY_HMAC, hkey);
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return 1;
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}
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static int int_update(EVP_MD_CTX *ctx, const void *data, size_t count)
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{
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HMAC_PKEY_CTX *hctx = EVP_MD_CTX_pkey_ctx(ctx)->data;
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if (!HMAC_Update(hctx->ctx, data, count))
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return 0;
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return 1;
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}
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static int hmac_signctx_init(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx)
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{
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HMAC_PKEY_CTX *hctx = ctx->data;
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HMAC_CTX_set_flags(hctx->ctx,
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EVP_MD_CTX_test_flags(mctx, ~EVP_MD_CTX_FLAG_NO_INIT));
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EVP_MD_CTX_set_flags(mctx, EVP_MD_CTX_FLAG_NO_INIT);
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EVP_MD_CTX_set_update_fn(mctx, int_update);
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return 1;
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}
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static int hmac_signctx(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
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EVP_MD_CTX *mctx)
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{
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unsigned int hlen;
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HMAC_PKEY_CTX *hctx = ctx->data;
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int l = EVP_MD_CTX_size(mctx);
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if (l < 0)
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return 0;
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*siglen = l;
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if (!sig)
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return 1;
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if (!HMAC_Final(hctx->ctx, sig, &hlen))
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return 0;
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*siglen = (size_t)hlen;
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return 1;
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}
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static int pkey_hmac_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
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{
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HMAC_PKEY_CTX *hctx = ctx->data;
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ASN1_OCTET_STRING *key;
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switch (type) {
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case EVP_PKEY_CTRL_SET_MAC_KEY:
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if ((!p2 && p1 > 0) || (p1 < -1))
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return 0;
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if (!ASN1_OCTET_STRING_set(&hctx->ktmp, p2, p1))
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return 0;
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break;
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case EVP_PKEY_CTRL_MD:
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hctx->md = p2;
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break;
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case EVP_PKEY_CTRL_DIGESTINIT:
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key = (ASN1_OCTET_STRING *)ctx->pkey->pkey.ptr;
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if (!HMAC_Init_ex(hctx->ctx, key->data, key->length, hctx->md,
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ctx->engine))
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return 0;
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break;
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default:
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return -2;
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}
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return 1;
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}
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static int pkey_hmac_ctrl_str(EVP_PKEY_CTX *ctx,
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const char *type, const char *value)
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{
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if (!value) {
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return 0;
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}
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if (strcmp(type, "key") == 0)
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return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, value);
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if (strcmp(type, "hexkey") == 0)
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return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, value);
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return -2;
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}
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const EVP_PKEY_METHOD hmac_pkey_meth = {
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EVP_PKEY_HMAC,
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0,
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pkey_hmac_init,
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pkey_hmac_copy,
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pkey_hmac_cleanup,
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||||
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0, 0,
|
||||
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0,
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pkey_hmac_keygen,
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||||
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0, 0,
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||||
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||||
0, 0,
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||||
|
||||
0, 0,
|
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|
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hmac_signctx_init,
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hmac_signctx,
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||||
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||||
0, 0,
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||||
|
||||
0, 0,
|
||||
|
||||
0, 0,
|
||||
|
||||
0, 0,
|
||||
|
||||
pkey_hmac_ctrl,
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pkey_hmac_ctrl_str
|
||||
};
|
||||
@@ -0,0 +1,240 @@
|
||||
/*
|
||||
* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
|
||||
*
|
||||
* Licensed under the OpenSSL license (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 <stdlib.h>
|
||||
#include <string.h>
|
||||
#include "internal/cryptlib.h"
|
||||
#include <openssl/hmac.h>
|
||||
#include <openssl/opensslconf.h>
|
||||
#include "hmac_lcl.h"
|
||||
|
||||
int HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len,
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const EVP_MD *md, ENGINE *impl)
|
||||
{
|
||||
int i, j, reset = 0;
|
||||
unsigned char pad[HMAC_MAX_MD_CBLOCK];
|
||||
|
||||
/* If we are changing MD then we must have a key */
|
||||
if (md != NULL && md != ctx->md && (key == NULL || len < 0))
|
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return 0;
|
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|
||||
if (md != NULL) {
|
||||
reset = 1;
|
||||
ctx->md = md;
|
||||
} else if (ctx->md) {
|
||||
md = ctx->md;
|
||||
} else {
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (key != NULL) {
|
||||
reset = 1;
|
||||
j = EVP_MD_block_size(md);
|
||||
OPENSSL_assert(j <= (int)sizeof(ctx->key));
|
||||
if (j < len) {
|
||||
if (!EVP_DigestInit_ex(ctx->md_ctx, md, impl))
|
||||
goto err;
|
||||
if (!EVP_DigestUpdate(ctx->md_ctx, key, len))
|
||||
goto err;
|
||||
if (!EVP_DigestFinal_ex(ctx->md_ctx, ctx->key,
|
||||
&ctx->key_length))
|
||||
goto err;
|
||||
} else {
|
||||
if (len < 0 || len > (int)sizeof(ctx->key))
|
||||
return 0;
|
||||
memcpy(ctx->key, key, len);
|
||||
ctx->key_length = len;
|
||||
}
|
||||
if (ctx->key_length != HMAC_MAX_MD_CBLOCK)
|
||||
memset(&ctx->key[ctx->key_length], 0,
|
||||
HMAC_MAX_MD_CBLOCK - ctx->key_length);
|
||||
}
|
||||
|
||||
if (reset) {
|
||||
for (i = 0; i < HMAC_MAX_MD_CBLOCK; i++)
|
||||
pad[i] = 0x36 ^ ctx->key[i];
|
||||
if (!EVP_DigestInit_ex(ctx->i_ctx, md, impl))
|
||||
goto err;
|
||||
if (!EVP_DigestUpdate(ctx->i_ctx, pad, EVP_MD_block_size(md)))
|
||||
goto err;
|
||||
|
||||
for (i = 0; i < HMAC_MAX_MD_CBLOCK; i++)
|
||||
pad[i] = 0x5c ^ ctx->key[i];
|
||||
if (!EVP_DigestInit_ex(ctx->o_ctx, md, impl))
|
||||
goto err;
|
||||
if (!EVP_DigestUpdate(ctx->o_ctx, pad, EVP_MD_block_size(md)))
|
||||
goto err;
|
||||
}
|
||||
if (!EVP_MD_CTX_copy_ex(ctx->md_ctx, ctx->i_ctx))
|
||||
goto err;
|
||||
return 1;
|
||||
err:
|
||||
return 0;
|
||||
}
|
||||
|
||||
#if OPENSSL_API_COMPAT < 0x10100000L
|
||||
int HMAC_Init(HMAC_CTX *ctx, const void *key, int len, const EVP_MD *md)
|
||||
{
|
||||
if (key && md)
|
||||
HMAC_CTX_reset(ctx);
|
||||
return HMAC_Init_ex(ctx, key, len, md, NULL);
|
||||
}
|
||||
#endif
|
||||
|
||||
int HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, size_t len)
|
||||
{
|
||||
if (!ctx->md)
|
||||
return 0;
|
||||
return EVP_DigestUpdate(ctx->md_ctx, data, len);
|
||||
}
|
||||
|
||||
int HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len)
|
||||
{
|
||||
unsigned int i;
|
||||
unsigned char buf[EVP_MAX_MD_SIZE];
|
||||
|
||||
if (!ctx->md)
|
||||
goto err;
|
||||
|
||||
if (!EVP_DigestFinal_ex(ctx->md_ctx, buf, &i))
|
||||
goto err;
|
||||
if (!EVP_MD_CTX_copy_ex(ctx->md_ctx, ctx->o_ctx))
|
||||
goto err;
|
||||
if (!EVP_DigestUpdate(ctx->md_ctx, buf, i))
|
||||
goto err;
|
||||
if (!EVP_DigestFinal_ex(ctx->md_ctx, md, len))
|
||||
goto err;
|
||||
return 1;
|
||||
err:
|
||||
return 0;
|
||||
}
|
||||
|
||||
size_t HMAC_size(const HMAC_CTX *ctx)
|
||||
{
|
||||
return EVP_MD_size((ctx)->md);
|
||||
}
|
||||
|
||||
HMAC_CTX *HMAC_CTX_new(void)
|
||||
{
|
||||
HMAC_CTX *ctx = OPENSSL_zalloc(sizeof(HMAC_CTX));
|
||||
|
||||
if (ctx != NULL) {
|
||||
if (!HMAC_CTX_reset(ctx)) {
|
||||
HMAC_CTX_free(ctx);
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
return ctx;
|
||||
}
|
||||
|
||||
static void hmac_ctx_cleanup(HMAC_CTX *ctx)
|
||||
{
|
||||
EVP_MD_CTX_reset(ctx->i_ctx);
|
||||
EVP_MD_CTX_reset(ctx->o_ctx);
|
||||
EVP_MD_CTX_reset(ctx->md_ctx);
|
||||
ctx->md = NULL;
|
||||
ctx->key_length = 0;
|
||||
OPENSSL_cleanse(ctx->key, sizeof(ctx->key));
|
||||
}
|
||||
|
||||
void HMAC_CTX_free(HMAC_CTX *ctx)
|
||||
{
|
||||
if (ctx != NULL) {
|
||||
hmac_ctx_cleanup(ctx);
|
||||
EVP_MD_CTX_free(ctx->i_ctx);
|
||||
EVP_MD_CTX_free(ctx->o_ctx);
|
||||
EVP_MD_CTX_free(ctx->md_ctx);
|
||||
OPENSSL_free(ctx);
|
||||
}
|
||||
}
|
||||
|
||||
int HMAC_CTX_reset(HMAC_CTX *ctx)
|
||||
{
|
||||
hmac_ctx_cleanup(ctx);
|
||||
if (ctx->i_ctx == NULL)
|
||||
ctx->i_ctx = EVP_MD_CTX_new();
|
||||
if (ctx->i_ctx == NULL)
|
||||
goto err;
|
||||
if (ctx->o_ctx == NULL)
|
||||
ctx->o_ctx = EVP_MD_CTX_new();
|
||||
if (ctx->o_ctx == NULL)
|
||||
goto err;
|
||||
if (ctx->md_ctx == NULL)
|
||||
ctx->md_ctx = EVP_MD_CTX_new();
|
||||
if (ctx->md_ctx == NULL)
|
||||
goto err;
|
||||
ctx->md = NULL;
|
||||
return 1;
|
||||
err:
|
||||
hmac_ctx_cleanup(ctx);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx)
|
||||
{
|
||||
if (!HMAC_CTX_reset(dctx))
|
||||
goto err;
|
||||
if (!EVP_MD_CTX_copy_ex(dctx->i_ctx, sctx->i_ctx))
|
||||
goto err;
|
||||
if (!EVP_MD_CTX_copy_ex(dctx->o_ctx, sctx->o_ctx))
|
||||
goto err;
|
||||
if (!EVP_MD_CTX_copy_ex(dctx->md_ctx, sctx->md_ctx))
|
||||
goto err;
|
||||
memcpy(dctx->key, sctx->key, HMAC_MAX_MD_CBLOCK);
|
||||
dctx->key_length = sctx->key_length;
|
||||
dctx->md = sctx->md;
|
||||
return 1;
|
||||
err:
|
||||
hmac_ctx_cleanup(dctx);
|
||||
return 0;
|
||||
}
|
||||
|
||||
unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len,
|
||||
const unsigned char *d, size_t n, unsigned char *md,
|
||||
unsigned int *md_len)
|
||||
{
|
||||
HMAC_CTX *c = NULL;
|
||||
static unsigned char m[EVP_MAX_MD_SIZE];
|
||||
static const unsigned char dummy_key[1] = {'\0'};
|
||||
|
||||
if (md == NULL)
|
||||
md = m;
|
||||
if ((c = HMAC_CTX_new()) == NULL)
|
||||
goto err;
|
||||
|
||||
/* For HMAC_Init_ex, NULL key signals reuse. */
|
||||
if (key == NULL && key_len == 0) {
|
||||
key = dummy_key;
|
||||
}
|
||||
|
||||
if (!HMAC_Init_ex(c, key, key_len, evp_md, NULL))
|
||||
goto err;
|
||||
if (!HMAC_Update(c, d, n))
|
||||
goto err;
|
||||
if (!HMAC_Final(c, md, md_len))
|
||||
goto err;
|
||||
HMAC_CTX_free(c);
|
||||
return md;
|
||||
err:
|
||||
HMAC_CTX_free(c);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags)
|
||||
{
|
||||
EVP_MD_CTX_set_flags(ctx->i_ctx, flags);
|
||||
EVP_MD_CTX_set_flags(ctx->o_ctx, flags);
|
||||
EVP_MD_CTX_set_flags(ctx->md_ctx, flags);
|
||||
}
|
||||
|
||||
const EVP_MD *HMAC_CTX_get_md(const HMAC_CTX *ctx)
|
||||
{
|
||||
return ctx->md;
|
||||
}
|
||||
@@ -0,0 +1,33 @@
|
||||
/*
|
||||
* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
|
||||
*
|
||||
* Licensed under the OpenSSL license (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
|
||||
*/
|
||||
|
||||
#ifndef HEADER_HMAC_LCL_H
|
||||
# define HEADER_HMAC_LCL_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
#if 0 /* emacs indentation fix */
|
||||
}
|
||||
#endif
|
||||
|
||||
struct hmac_ctx_st {
|
||||
const EVP_MD *md;
|
||||
EVP_MD_CTX *md_ctx;
|
||||
EVP_MD_CTX *i_ctx;
|
||||
EVP_MD_CTX *o_ctx;
|
||||
unsigned int key_length;
|
||||
unsigned char key[HMAC_MAX_MD_CBLOCK];
|
||||
};
|
||||
|
||||
#ifdef __cplusplus
|
||||
} /* extern "C" */
|
||||
#endif
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user