GnuTLS: Add option to build with libnettle instead of libgcrypt
GnuTLS-based builds can now be done using either libnettle or libgcrypt for crypto functionality: CONFIG_TLS=gnutls CONFIG_CRYPTO=nettle CONFIG_TLS=gnutls CONFIG_CRYPTO=gnutls Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen
parent
b4635f0a61
commit
b7ed94834d
5 changed files with 494 additions and 9 deletions
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@ -639,21 +639,33 @@ L_CFLAGS += -DTLS_DEFAULT_CIPHERS=\"$(CONFIG_TLS_DEFAULT_CIPHERS)\"
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endif
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ifeq ($(CONFIG_TLS), gnutls)
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ifndef CONFIG_CRYPTO
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# default to libgcrypt
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CONFIG_CRYPTO=gnutls
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endif
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ifdef TLS_FUNCS
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OBJS += src/crypto/tls_gnutls.c
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LIBS += -lgnutls -lgpg-error
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endif
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OBJS += src/crypto/crypto_gnutls.c
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HOBJS += src/crypto/crypto_gnutls.c
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OBJS += src/crypto/crypto_$(CONFIG_CRYPTO).c
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HOBJS += src/crypto/crypto_$(CONFIG_CRYPTO).c
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ifdef NEED_FIPS186_2_PRF
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OBJS += src/crypto/fips_prf_internal.c
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OBJS += src/crypto/sha1-internal.c
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endif
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ifeq ($(CONFIG_CRYPTO), gnutls)
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LIBS += -lgcrypt
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LIBS_h += -lgcrypt
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CONFIG_INTERNAL_RC4=y
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CONFIG_INTERNAL_DH_GROUP5=y
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endif
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ifeq ($(CONFIG_CRYPTO), nettle)
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LIBS += -lnettle -lgmp
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LIBS_p += -lnettle -lgmp
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CONFIG_INTERNAL_RC4=y
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CONFIG_INTERNAL_DH_GROUP5=y
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endif
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endif
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ifeq ($(CONFIG_TLS), internal)
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ifndef CONFIG_CRYPTO
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@ -677,21 +677,33 @@ CFLAGS += -DTLS_DEFAULT_CIPHERS=\"$(CONFIG_TLS_DEFAULT_CIPHERS)\"
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endif
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ifeq ($(CONFIG_TLS), gnutls)
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ifndef CONFIG_CRYPTO
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# default to libgcrypt
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CONFIG_CRYPTO=gnutls
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endif
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ifdef TLS_FUNCS
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OBJS += ../src/crypto/tls_gnutls.o
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LIBS += -lgnutls -lgpg-error
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endif
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OBJS += ../src/crypto/crypto_gnutls.o
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HOBJS += ../src/crypto/crypto_gnutls.o
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OBJS += ../src/crypto/crypto_$(CONFIG_CRYPTO).o
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HOBJS += ../src/crypto/crypto_$(CONFIG_CRYPTO).o
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ifdef NEED_FIPS186_2_PRF
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OBJS += ../src/crypto/fips_prf_internal.o
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SHA1OBJS += ../src/crypto/sha1-internal.o
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endif
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ifeq ($(CONFIG_CRYPTO), gnutls)
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LIBS += -lgcrypt
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LIBS_h += -lgcrypt
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CONFIG_INTERNAL_RC4=y
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CONFIG_INTERNAL_DH_GROUP5=y
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endif
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ifeq ($(CONFIG_CRYPTO), nettle)
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LIBS += -lnettle -lgmp
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LIBS_p += -lnettle -lgmp
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CONFIG_INTERNAL_RC4=y
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CONFIG_INTERNAL_DH_GROUP5=y
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endif
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endif
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ifeq ($(CONFIG_TLS), internal)
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ifndef CONFIG_CRYPTO
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437
src/crypto/crypto_nettle.c
Normal file
437
src/crypto/crypto_nettle.c
Normal file
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@ -0,0 +1,437 @@
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/*
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* Wrapper functions for libnettle and libgmp
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* Copyright (c) 2017, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#include "includes.h"
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#include <nettle/nettle-meta.h>
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#include <nettle/des.h>
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#undef des_encrypt
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#include <nettle/hmac.h>
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#include <nettle/aes.h>
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#undef aes_encrypt
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#undef aes_decrypt
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#include <nettle/arcfour.h>
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#include <nettle/bignum.h>
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#include "common.h"
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#include "md5.h"
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#include "sha1.h"
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#include "sha256.h"
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#include "sha384.h"
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#include "sha512.h"
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#include "crypto.h"
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int des_encrypt(const u8 *clear, const u8 *key, u8 *cypher)
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{
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struct des_ctx ctx;
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u8 pkey[8], next, tmp;
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int i;
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/* Add parity bits to the key */
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next = 0;
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for (i = 0; i < 7; i++) {
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tmp = key[i];
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pkey[i] = (tmp >> i) | next | 1;
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next = tmp << (7 - i);
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}
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pkey[i] = next | 1;
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nettle_des_set_key(&ctx, pkey);
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nettle_des_encrypt(&ctx, DES_BLOCK_SIZE, cypher, clear);
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os_memset(&ctx, 0, sizeof(ctx));
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return 0;
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}
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static int nettle_digest_vector(const struct nettle_hash *alg, size_t num_elem,
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const u8 *addr[], const size_t *len, u8 *mac)
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{
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void *ctx;
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size_t i;
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if (TEST_FAIL())
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return -1;
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ctx = os_malloc(alg->context_size);
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if (!ctx)
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return -1;
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alg->init(ctx);
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for (i = 0; i < num_elem; i++)
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alg->update(ctx, len[i], addr[i]);
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alg->digest(ctx, alg->digest_size, mac);
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bin_clear_free(ctx, alg->context_size);
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return 0;
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}
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int md4_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)
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{
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return nettle_digest_vector(&nettle_md4, num_elem, addr, len, mac);
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}
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int md5_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)
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{
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return nettle_digest_vector(&nettle_md5, num_elem, addr, len, mac);
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}
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int sha1_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)
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{
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return nettle_digest_vector(&nettle_sha1, num_elem, addr, len, mac);
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}
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int sha256_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)
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{
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return nettle_digest_vector(&nettle_sha256, num_elem, addr, len, mac);
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}
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int sha384_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)
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{
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return nettle_digest_vector(&nettle_sha384, num_elem, addr, len, mac);
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}
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int sha512_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)
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{
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return nettle_digest_vector(&nettle_sha512, num_elem, addr, len, mac);
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}
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int hmac_md5_vector(const u8 *key, size_t key_len, size_t num_elem,
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const u8 *addr[], const size_t *len, u8 *mac)
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{
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struct hmac_md5_ctx ctx;
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size_t i;
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if (TEST_FAIL())
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return -1;
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hmac_md5_set_key(&ctx, key_len, key);
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for (i = 0; i < num_elem; i++)
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hmac_md5_update(&ctx, len[i], addr[i]);
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hmac_md5_digest(&ctx, MD5_DIGEST_SIZE, mac);
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os_memset(&ctx, 0, sizeof(ctx));
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return 0;
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}
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int hmac_md5(const u8 *key, size_t key_len, const u8 *data, size_t data_len,
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u8 *mac)
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{
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return hmac_md5_vector(key, key_len, 1, &data, &data_len, mac);
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}
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int hmac_sha1_vector(const u8 *key, size_t key_len, size_t num_elem,
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const u8 *addr[], const size_t *len, u8 *mac)
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{
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struct hmac_sha1_ctx ctx;
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size_t i;
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if (TEST_FAIL())
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return -1;
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hmac_sha1_set_key(&ctx, key_len, key);
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for (i = 0; i < num_elem; i++)
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hmac_sha1_update(&ctx, len[i], addr[i]);
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hmac_sha1_digest(&ctx, SHA1_DIGEST_SIZE, mac);
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os_memset(&ctx, 0, sizeof(ctx));
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return 0;
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}
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int hmac_sha1(const u8 *key, size_t key_len, const u8 *data, size_t data_len,
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u8 *mac)
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{
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return hmac_sha1_vector(key, key_len, 1, &data, &data_len, mac);
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}
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#ifdef CONFIG_SHA256
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int hmac_sha256_vector(const u8 *key, size_t key_len, size_t num_elem,
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const u8 *addr[], const size_t *len, u8 *mac)
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{
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struct hmac_sha256_ctx ctx;
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size_t i;
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if (TEST_FAIL())
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return -1;
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hmac_sha256_set_key(&ctx, key_len, key);
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for (i = 0; i < num_elem; i++)
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hmac_sha256_update(&ctx, len[i], addr[i]);
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hmac_sha256_digest(&ctx, SHA256_DIGEST_SIZE, mac);
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os_memset(&ctx, 0, sizeof(ctx));
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return 0;
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}
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int hmac_sha256(const u8 *key, size_t key_len, const u8 *data,
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size_t data_len, u8 *mac)
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{
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return hmac_sha256_vector(key, key_len, 1, &data, &data_len, mac);
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}
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#endif /* CONFIG_SHA256 */
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#ifdef CONFIG_SHA384
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int hmac_sha384_vector(const u8 *key, size_t key_len, size_t num_elem,
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const u8 *addr[], const size_t *len, u8 *mac)
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{
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struct hmac_sha384_ctx ctx;
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size_t i;
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if (TEST_FAIL())
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return -1;
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hmac_sha384_set_key(&ctx, key_len, key);
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for (i = 0; i < num_elem; i++)
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hmac_sha384_update(&ctx, len[i], addr[i]);
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hmac_sha384_digest(&ctx, SHA384_DIGEST_SIZE, mac);
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os_memset(&ctx, 0, sizeof(ctx));
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return 0;
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}
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int hmac_sha384(const u8 *key, size_t key_len, const u8 *data,
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size_t data_len, u8 *mac)
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{
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return hmac_sha384_vector(key, key_len, 1, &data, &data_len, mac);
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}
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#endif /* CONFIG_SHA384 */
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#ifdef CONFIG_SHA512
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int hmac_sha512_vector(const u8 *key, size_t key_len, size_t num_elem,
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const u8 *addr[], const size_t *len, u8 *mac)
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{
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struct hmac_sha512_ctx ctx;
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size_t i;
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if (TEST_FAIL())
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return -1;
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hmac_sha512_set_key(&ctx, key_len, key);
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for (i = 0; i < num_elem; i++)
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hmac_sha512_update(&ctx, len[i], addr[i]);
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hmac_sha512_digest(&ctx, SHA512_DIGEST_SIZE, mac);
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os_memset(&ctx, 0, sizeof(ctx));
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return 0;
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}
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int hmac_sha512(const u8 *key, size_t key_len, const u8 *data,
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size_t data_len, u8 *mac)
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{
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return hmac_sha512_vector(key, key_len, 1, &data, &data_len, mac);
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}
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#endif /* CONFIG_SHA512 */
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void * aes_encrypt_init(const u8 *key, size_t len)
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{
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struct aes_ctx *ctx;
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if (TEST_FAIL())
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return NULL;
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ctx = os_malloc(sizeof(*ctx));
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if (!ctx)
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return NULL;
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nettle_aes_set_encrypt_key(ctx, len, key);
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return ctx;
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}
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int aes_encrypt(void *ctx, const u8 *plain, u8 *crypt)
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{
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struct aes_ctx *actx = ctx;
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nettle_aes_encrypt(actx, AES_BLOCK_SIZE, crypt, plain);
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return 0;
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}
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void aes_encrypt_deinit(void *ctx)
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{
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struct aes_ctx *actx = ctx;
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bin_clear_free(actx, sizeof(*actx));
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}
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void * aes_decrypt_init(const u8 *key, size_t len)
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{
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struct aes_ctx *ctx;
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if (TEST_FAIL())
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return NULL;
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ctx = os_malloc(sizeof(*ctx));
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if (!ctx)
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return NULL;
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nettle_aes_set_decrypt_key(ctx, len, key);
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return ctx;
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}
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int aes_decrypt(void *ctx, const u8 *crypt, u8 *plain)
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{
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struct aes_ctx *actx = ctx;
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nettle_aes_decrypt(actx, AES_BLOCK_SIZE, plain, crypt);
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return 0;
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}
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void aes_decrypt_deinit(void *ctx)
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{
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struct aes_ctx *actx = ctx;
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bin_clear_free(actx, sizeof(*actx));
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}
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int crypto_dh_init(u8 generator, const u8 *prime, size_t prime_len, u8 *privkey,
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u8 *pubkey)
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{
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size_t pubkey_len, pad;
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if (os_get_random(privkey, prime_len) < 0)
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return -1;
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if (os_memcmp(privkey, prime, prime_len) > 0) {
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/* Make sure private value is smaller than prime */
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privkey[0] = 0;
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}
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pubkey_len = prime_len;
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if (crypto_mod_exp(&generator, 1, privkey, prime_len, prime, prime_len,
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pubkey, &pubkey_len) < 0)
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return -1;
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if (pubkey_len < prime_len) {
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pad = prime_len - pubkey_len;
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os_memmove(pubkey + pad, pubkey, pubkey_len);
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os_memset(pubkey, 0, pad);
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}
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return 0;
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}
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int crypto_dh_derive_secret(u8 generator, const u8 *prime, size_t prime_len,
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const u8 *privkey, size_t privkey_len,
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const u8 *pubkey, size_t pubkey_len,
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u8 *secret, size_t *len)
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{
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return crypto_mod_exp(pubkey, pubkey_len, privkey, privkey_len,
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prime, prime_len, secret, len);
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}
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int crypto_mod_exp(const u8 *base, size_t base_len,
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const u8 *power, size_t power_len,
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const u8 *modulus, size_t modulus_len,
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u8 *result, size_t *result_len)
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{
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mpz_t bn_base, bn_exp, bn_modulus, bn_result;
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int ret = -1;
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size_t len;
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mpz_inits(bn_base, bn_exp, bn_modulus, bn_result, NULL);
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mpz_import(bn_base, base_len, 1, 1, 1, 0, base);
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mpz_import(bn_exp, power_len, 1, 1, 1, 0, power);
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mpz_import(bn_modulus, modulus_len, 1, 1, 1, 0, modulus);
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mpz_powm(bn_result, bn_base, bn_exp, bn_modulus);
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len = mpz_sizeinbase(bn_result, 2);
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len = (len + 7) / 8;
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if (*result_len < len)
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goto error;
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mpz_export(result, result_len, 1, 1, 1, 0, bn_result);
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ret = 0;
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error:
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mpz_clears(bn_base, bn_exp, bn_modulus, bn_result, NULL);
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return ret;
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}
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struct crypto_cipher {
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enum crypto_cipher_alg alg;
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union {
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struct arcfour_ctx arcfour_ctx;
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} u;
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};
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struct crypto_cipher * crypto_cipher_init(enum crypto_cipher_alg alg,
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const u8 *iv, const u8 *key,
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size_t key_len)
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{
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struct crypto_cipher *ctx;
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ctx = os_zalloc(sizeof(*ctx));
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if (!ctx)
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return NULL;
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ctx->alg = alg;
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switch (alg) {
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case CRYPTO_CIPHER_ALG_RC4:
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nettle_arcfour_set_key(&ctx->u.arcfour_ctx, key_len, key);
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break;
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default:
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os_free(ctx);
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return NULL;
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}
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return ctx;
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}
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|
||||
int crypto_cipher_encrypt(struct crypto_cipher *ctx, const u8 *plain,
|
||||
u8 *crypt, size_t len)
|
||||
{
|
||||
switch (ctx->alg) {
|
||||
case CRYPTO_CIPHER_ALG_RC4:
|
||||
nettle_arcfour_crypt(&ctx->u.arcfour_ctx, len, crypt, plain);
|
||||
break;
|
||||
default:
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
int crypto_cipher_decrypt(struct crypto_cipher *ctx, const u8 *crypt,
|
||||
u8 *plain, size_t len)
|
||||
{
|
||||
switch (ctx->alg) {
|
||||
case CRYPTO_CIPHER_ALG_RC4:
|
||||
nettle_arcfour_crypt(&ctx->u.arcfour_ctx, len, plain, crypt);
|
||||
break;
|
||||
default:
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
void crypto_cipher_deinit(struct crypto_cipher *ctx)
|
||||
{
|
||||
bin_clear_free(ctx, sizeof(*ctx));
|
||||
}
|
||||
|
|
@ -1039,21 +1039,33 @@ L_CFLAGS += -DTLS_DEFAULT_CIPHERS=\"$(CONFIG_TLS_DEFAULT_CIPHERS)\"
|
|||
endif
|
||||
|
||||
ifeq ($(CONFIG_TLS), gnutls)
|
||||
ifndef CONFIG_CRYPTO
|
||||
# default to libgcrypt
|
||||
CONFIG_CRYPTO=gnutls
|
||||
endif
|
||||
ifdef TLS_FUNCS
|
||||
OBJS += src/crypto/tls_gnutls.c
|
||||
LIBS += -lgnutls -lgpg-error
|
||||
endif
|
||||
OBJS += src/crypto/crypto_gnutls.c
|
||||
OBJS_p += src/crypto/crypto_gnutls.c
|
||||
OBJS += src/crypto/crypto_$(CONFIG_CRYPTO).c
|
||||
OBJS_p += src/crypto/crypto_$(CONFIG_CRYPTO).c
|
||||
ifdef NEED_FIPS186_2_PRF
|
||||
OBJS += src/crypto/fips_prf_internal.c
|
||||
OBJS += src/crypto/sha1-internal.c
|
||||
endif
|
||||
ifeq ($(CONFIG_CRYPTO), gnutls)
|
||||
LIBS += -lgcrypt
|
||||
LIBS_p += -lgcrypt
|
||||
CONFIG_INTERNAL_RC4=y
|
||||
CONFIG_INTERNAL_DH_GROUP5=y
|
||||
endif
|
||||
ifeq ($(CONFIG_CRYPTO), nettle)
|
||||
LIBS += -lnettle -lgmp
|
||||
LIBS_p += -lnettle -lgmp
|
||||
CONFIG_INTERNAL_RC4=y
|
||||
CONFIG_INTERNAL_DH_GROUP5=y
|
||||
endif
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_TLS), internal)
|
||||
ifndef CONFIG_CRYPTO
|
||||
|
|
|
|||
|
|
@ -1082,22 +1082,34 @@ CFLAGS += -DTLS_DEFAULT_CIPHERS=\"$(CONFIG_TLS_DEFAULT_CIPHERS)\"
|
|||
endif
|
||||
|
||||
ifeq ($(CONFIG_TLS), gnutls)
|
||||
ifndef CONFIG_CRYPTO
|
||||
# default to libgcrypt
|
||||
CONFIG_CRYPTO=gnutls
|
||||
endif
|
||||
ifdef TLS_FUNCS
|
||||
OBJS += ../src/crypto/tls_gnutls.o
|
||||
LIBS += -lgnutls -lgpg-error
|
||||
endif
|
||||
OBJS += ../src/crypto/crypto_gnutls.o
|
||||
OBJS_p += ../src/crypto/crypto_gnutls.o
|
||||
OBJS_priv += ../src/crypto/crypto_gnutls.o
|
||||
OBJS += ../src/crypto/crypto_$(CONFIG_CRYPTO).o
|
||||
OBJS_p += ../src/crypto/crypto_$(CONFIG_CRYPTO).o
|
||||
OBJS_priv += ../src/crypto/crypto_$(CONFIG_CRYPTO).o
|
||||
ifdef NEED_FIPS186_2_PRF
|
||||
OBJS += ../src/crypto/fips_prf_internal.o
|
||||
SHA1OBJS += ../src/crypto/sha1-internal.o
|
||||
endif
|
||||
ifeq ($(CONFIG_CRYPTO), gnutls)
|
||||
LIBS += -lgcrypt
|
||||
LIBS_p += -lgcrypt
|
||||
CONFIG_INTERNAL_RC4=y
|
||||
CONFIG_INTERNAL_DH_GROUP5=y
|
||||
endif
|
||||
ifeq ($(CONFIG_CRYPTO), nettle)
|
||||
LIBS += -lnettle -lgmp
|
||||
LIBS_p += -lnettle -lgmp
|
||||
CONFIG_INTERNAL_RC4=y
|
||||
CONFIG_INTERNAL_DH_GROUP5=y
|
||||
endif
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_TLS), internal)
|
||||
ifndef CONFIG_CRYPTO
|
||||
|
|
|
|||
Loading…
Reference in a new issue