aes-gcm: Adapt AES-GCM to build for EC
Update header, C code, trim unnecessary bits.
Also add a test with vectors taken from BoringSSL tests.
BRANCH=none
BUG=b:111160949
TEST=make run-aes -j
TEST=make BOARD=nocturne_fp test-aes -j
flash_fp_mcu aes.bin
runtest => pass
(C implementation speed: 909555 us for 1000 iterations)
(ASM implementation speed: 596690 us for 1000 iterations)
Change-Id: Ief54a8441d26ba44de4c3ac81e203cab7472269f
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1141446
Commit-Ready: Nicolas Norvez <norvez@chromium.org>
Reviewed-by: Nicolas Norvez <norvez@chromium.org>
This commit is contained in:
Nicolas Boichat
chrome-bot
parent
4a237232c2
commit
15dd79c1a2
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@ -19,6 +19,7 @@ common-$(CONFIG_ACCEL_KX022)+=math_util.o
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ifneq ($(CORE),cortex-m)
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common-$(CONFIG_AES)+=aes.o
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endif
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common-$(CONFIG_AES_GCM)+=aes-gcm.o
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common-$(CONFIG_CMD_ADC)+=adc.o
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common-$(HAS_TASK_ALS)+=als.o
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common-$(CONFIG_AP_HANG_DETECT)+=ap_hang_detect.o
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@ -162,6 +163,11 @@ $(out)/RW/common/rsa.o: CFLAGS+=-O3
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$(out)/RO/common/rsa.o: CFLAGS+=-O3
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endif
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# AES-GCM code needs C99, else we'd have to move many variables declarations
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# around.
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$(out)/RW/common/aes-gcm.o: CFLAGS+=-std=c99 -Wno-declaration-after-statement
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$(out)/RO/common/aes-gcm.o: CFLAGS+=-std=c99 -Wno-declaration-after-statement
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ifneq ($(CONFIG_BOOTBLOCK),)
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build-util-bin += gen_emmc_transfer_data
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@ -24,6 +24,7 @@ endif
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core-y=cpu.o init.o ldivmod.o llsr.o uldivmod.o vecttable.o
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core-$(CONFIG_AES)+=aes.o
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core-$(CONFIG_AES_GCM)+=ghash.o
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core-$(CONFIG_ARMV7M_CACHE)+=cache.o
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core-$(CONFIG_COMMON_PANIC_OUTPUT)+=panic.o
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core-$(CONFIG_COMMON_RUNTIME)+=switch.o task.o
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@ -162,6 +162,9 @@
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/* Support AES symmetric-key algorithm */
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#undef CONFIG_AES
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/* Support AES-GCM */
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#undef CONFIG_AES_GCM
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/*
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* Some ALS modules may be connected to the EC. We need the command, and
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* specific drivers for each module.
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383
test/aes.c
383
test/aes.c
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@ -13,6 +13,7 @@
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
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#include "aes.h"
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#include "aes-gcm.h"
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#include "console.h"
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#include "common.h"
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#include "test_util.h"
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@ -20,33 +21,399 @@
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#include "util.h"
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#include "watchdog.h"
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/* Temporary buffer, to avoid using too much stack space. */
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static uint8_t tmp[512];
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static int test_aes_gcm_raw(const uint8_t *key, int key_size,
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const uint8_t *plaintext, const uint8_t *ciphertext, int plaintext_size,
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const uint8_t *nonce, int nonce_size,
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const uint8_t *tag, int tag_size) {
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uint8_t *out = tmp;
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static AES_KEY aes_key;
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static GCM128_CONTEXT ctx;
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TEST_ASSERT(plaintext_size <= sizeof(tmp));
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TEST_ASSERT(AES_set_encrypt_key(key, 8 * key_size, &aes_key) == 0);
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CRYPTO_gcm128_init(&ctx, &aes_key, (block128_f)AES_encrypt, 0);
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CRYPTO_gcm128_setiv(&ctx, &aes_key, nonce, nonce_size);
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CRYPTO_gcm128_encrypt(&ctx, &aes_key, plaintext, out, plaintext_size);
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TEST_ASSERT(CRYPTO_gcm128_finish(&ctx, tag, tag_size));
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TEST_ASSERT_ARRAY_EQ(ciphertext, out, plaintext_size);
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CRYPTO_gcm128_setiv(&ctx, &aes_key, nonce, nonce_size);
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memset(out, 0, plaintext_size);
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CRYPTO_gcm128_decrypt(&ctx, &aes_key, ciphertext, out, plaintext_size);
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TEST_ASSERT(CRYPTO_gcm128_finish(&ctx, tag, tag_size));
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TEST_ASSERT_ARRAY_EQ(plaintext, out, plaintext_size);
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return EC_SUCCESS;
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}
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static int test_aes_gcm(void)
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{
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/*
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* Test vectors from BoringSSL crypto/fipsmodule/modes/gcm_tests.txt
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* (only the ones with actual data, and no additional data).
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*/
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static const uint8_t key1[] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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};
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static const uint8_t plain1[] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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};
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static const uint8_t nonce1[] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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};
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static const uint8_t cipher1[] = {
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0x03, 0x88, 0xda, 0xce, 0x60, 0xb6, 0xa3, 0x92,
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0xf3, 0x28, 0xc2, 0xb9, 0x71, 0xb2, 0xfe, 0x78,
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};
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static const uint8_t tag1[] = {
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0xab, 0x6e, 0x47, 0xd4, 0x2c, 0xec, 0x13, 0xbd,
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0xf5, 0x3a, 0x67, 0xb2, 0x12, 0x57, 0xbd, 0xdf,
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};
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static const uint8_t key2[] = {
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0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
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0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08,
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};
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static const uint8_t plain2[] = {
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0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,
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0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,
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0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,
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0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,
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0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,
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0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,
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0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,
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0xba, 0x63, 0x7b, 0x39, 0x1a, 0xaf, 0xd2, 0x55,
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};
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static const uint8_t nonce2[] = {
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0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad,
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0xde, 0xca, 0xf8, 0x88,
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};
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static const uint8_t cipher2[] = {
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0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24,
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0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c,
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0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0,
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0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e,
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0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c,
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0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05,
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0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97,
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0x3d, 0x58, 0xe0, 0x91, 0x47, 0x3f, 0x59, 0x85,
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};
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static const uint8_t tag2[] = {
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0x4d, 0x5c, 0x2a, 0xf3, 0x27, 0xcd, 0x64, 0xa6,
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0x2c, 0xf3, 0x5a, 0xbd, 0x2b, 0xa6, 0xfa, 0xb4,
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};
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static const uint8_t key3[] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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};
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static const uint8_t plain3[] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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};
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static const uint8_t nonce3[] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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};
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static const uint8_t cipher3[] = {
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0x98, 0xe7, 0x24, 0x7c, 0x07, 0xf0, 0xfe, 0x41,
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0x1c, 0x26, 0x7e, 0x43, 0x84, 0xb0, 0xf6, 0x00,
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};
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static const uint8_t tag3[] = {
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0x2f, 0xf5, 0x8d, 0x80, 0x03, 0x39, 0x27, 0xab,
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0x8e, 0xf4, 0xd4, 0x58, 0x75, 0x14, 0xf0, 0xfb,
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};
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static const uint8_t key4[] = {
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0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
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0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08,
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0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
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};
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static const uint8_t plain4[] = {
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0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,
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0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,
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0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,
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0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,
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0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,
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0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,
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0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,
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0xba, 0x63, 0x7b, 0x39, 0x1a, 0xaf, 0xd2, 0x55,
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};
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static const uint8_t nonce4[] = {
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0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad,
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0xde, 0xca, 0xf8, 0x88,
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};
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static const uint8_t cipher4[] = {
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0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41,
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0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57,
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0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84,
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0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c,
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0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25,
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0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47,
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0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9,
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0xcc, 0xda, 0x27, 0x10, 0xac, 0xad, 0xe2, 0x56,
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};
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static const uint8_t tag4[] = {
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0x99, 0x24, 0xa7, 0xc8, 0x58, 0x73, 0x36, 0xbf,
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0xb1, 0x18, 0x02, 0x4d, 0xb8, 0x67, 0x4a, 0x14,
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};
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static const uint8_t key5[] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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};
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static const uint8_t plain5[] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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};
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static const uint8_t nonce5[] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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};
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static const uint8_t cipher5[] = {
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0xce, 0xa7, 0x40, 0x3d, 0x4d, 0x60, 0x6b, 0x6e,
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0x07, 0x4e, 0xc5, 0xd3, 0xba, 0xf3, 0x9d, 0x18,
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};
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static const uint8_t tag5[] = {
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0xd0, 0xd1, 0xc8, 0xa7, 0x99, 0x99, 0x6b, 0xf0,
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0x26, 0x5b, 0x98, 0xb5, 0xd4, 0x8a, 0xb9, 0x19,
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};
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static const uint8_t key6[] = {
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0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
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0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08,
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0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
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0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08,
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};
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static const uint8_t plain6[] = {
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0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,
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0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,
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0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,
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0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,
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0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,
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0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,
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0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,
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0xba, 0x63, 0x7b, 0x39, 0x1a, 0xaf, 0xd2, 0x55,
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};
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static const uint8_t nonce6[] = {
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0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad,
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0xde, 0xca, 0xf8, 0x88,
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};
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static const uint8_t cipher6[] = {
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0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07,
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0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d,
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0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9,
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0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa,
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0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d,
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0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38,
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0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a,
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0xbc, 0xc9, 0xf6, 0x62, 0x89, 0x80, 0x15, 0xad,
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};
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static const uint8_t tag6[] = {
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0xb0, 0x94, 0xda, 0xc5, 0xd9, 0x34, 0x71, 0xbd,
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0xec, 0x1a, 0x50, 0x22, 0x70, 0xe3, 0xcc, 0x6c,
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};
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static const uint8_t key7[] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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};
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static const uint8_t plain7[] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
};
|
||||
/* This nonce results in 0xfff in counter LSB. */
|
||||
static const uint8_t nonce7[] = {
|
||||
0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
};
|
||||
static const uint8_t cipher7[] = {
|
||||
0x56, 0xb3, 0x37, 0x3c, 0xa9, 0xef, 0x6e, 0x4a,
|
||||
0x2b, 0x64, 0xfe, 0x1e, 0x9a, 0x17, 0xb6, 0x14,
|
||||
0x25, 0xf1, 0x0d, 0x47, 0xa7, 0x5a, 0x5f, 0xce,
|
||||
0x13, 0xef, 0xc6, 0xbc, 0x78, 0x4a, 0xf2, 0x4f,
|
||||
0x41, 0x41, 0xbd, 0xd4, 0x8c, 0xf7, 0xc7, 0x70,
|
||||
0x88, 0x7a, 0xfd, 0x57, 0x3c, 0xca, 0x54, 0x18,
|
||||
0xa9, 0xae, 0xff, 0xcd, 0x7c, 0x5c, 0xed, 0xdf,
|
||||
0xc6, 0xa7, 0x83, 0x97, 0xb9, 0xa8, 0x5b, 0x49,
|
||||
0x9d, 0xa5, 0x58, 0x25, 0x72, 0x67, 0xca, 0xab,
|
||||
0x2a, 0xd0, 0xb2, 0x3c, 0xa4, 0x76, 0xa5, 0x3c,
|
||||
0xb1, 0x7f, 0xb4, 0x1c, 0x4b, 0x8b, 0x47, 0x5c,
|
||||
0xb4, 0xf3, 0xf7, 0x16, 0x50, 0x94, 0xc2, 0x29,
|
||||
0xc9, 0xe8, 0xc4, 0xdc, 0x0a, 0x2a, 0x5f, 0xf1,
|
||||
0x90, 0x3e, 0x50, 0x15, 0x11, 0x22, 0x13, 0x76,
|
||||
0xa1, 0xcd, 0xb8, 0x36, 0x4c, 0x50, 0x61, 0xa2,
|
||||
0x0c, 0xae, 0x74, 0xbc, 0x4a, 0xcd, 0x76, 0xce,
|
||||
0xb0, 0xab, 0xc9, 0xfd, 0x32, 0x17, 0xef, 0x9f,
|
||||
0x8c, 0x90, 0xbe, 0x40, 0x2d, 0xdf, 0x6d, 0x86,
|
||||
0x97, 0xf4, 0xf8, 0x80, 0xdf, 0xf1, 0x5b, 0xfb,
|
||||
0x7a, 0x6b, 0x28, 0x24, 0x1e, 0xc8, 0xfe, 0x18,
|
||||
0x3c, 0x2d, 0x59, 0xe3, 0xf9, 0xdf, 0xff, 0x65,
|
||||
0x3c, 0x71, 0x26, 0xf0, 0xac, 0xb9, 0xe6, 0x42,
|
||||
0x11, 0xf4, 0x2b, 0xae, 0x12, 0xaf, 0x46, 0x2b,
|
||||
0x10, 0x70, 0xbe, 0xf1, 0xab, 0x5e, 0x36, 0x06,
|
||||
0x87, 0x2c, 0xa1, 0x0d, 0xee, 0x15, 0xb3, 0x24,
|
||||
0x9b, 0x1a, 0x1b, 0x95, 0x8f, 0x23, 0x13, 0x4c,
|
||||
0x4b, 0xcc, 0xb7, 0xd0, 0x32, 0x00, 0xbc, 0xe4,
|
||||
0x20, 0xa2, 0xf8, 0xeb, 0x66, 0xdc, 0xf3, 0x64,
|
||||
0x4d, 0x14, 0x23, 0xc1, 0xb5, 0x69, 0x90, 0x03,
|
||||
0xc1, 0x3e, 0xce, 0xf4, 0xbf, 0x38, 0xa3, 0xb6,
|
||||
0x0e, 0xed, 0xc3, 0x40, 0x33, 0xba, 0xc1, 0x90,
|
||||
0x27, 0x83, 0xdc, 0x6d, 0x89, 0xe2, 0xe7, 0x74,
|
||||
0x18, 0x8a, 0x43, 0x9c, 0x7e, 0xbc, 0xc0, 0x67,
|
||||
0x2d, 0xbd, 0xa4, 0xdd, 0xcf, 0xb2, 0x79, 0x46,
|
||||
0x13, 0xb0, 0xbe, 0x41, 0x31, 0x5e, 0xf7, 0x78,
|
||||
0x70, 0x8a, 0x70, 0xee, 0x7d, 0x75, 0x16, 0x5c,
|
||||
};
|
||||
static const uint8_t tag7[] = {
|
||||
0x8b, 0x30, 0x7f, 0x6b, 0x33, 0x28, 0x6d, 0x0a,
|
||||
0xb0, 0x26, 0xa9, 0xed, 0x3f, 0xe1, 0xe8, 0x5f,
|
||||
};
|
||||
|
||||
TEST_ASSERT(!test_aes_gcm_raw(key1, sizeof(key1),
|
||||
plain1, cipher1, sizeof(plain1),
|
||||
nonce1, sizeof(nonce1), tag1, sizeof(tag1)));
|
||||
TEST_ASSERT(!test_aes_gcm_raw(key2, sizeof(key2),
|
||||
plain2, cipher2, sizeof(plain2),
|
||||
nonce2, sizeof(nonce2), tag2, sizeof(tag2)));
|
||||
TEST_ASSERT(!test_aes_gcm_raw(key3, sizeof(key3),
|
||||
plain3, cipher3, sizeof(plain3),
|
||||
nonce3, sizeof(nonce3), tag3, sizeof(tag3)));
|
||||
TEST_ASSERT(!test_aes_gcm_raw(key4, sizeof(key4),
|
||||
plain4, cipher4, sizeof(plain4),
|
||||
nonce4, sizeof(nonce4), tag4, sizeof(tag4)));
|
||||
TEST_ASSERT(!test_aes_gcm_raw(key5, sizeof(key5),
|
||||
plain5, cipher5, sizeof(plain5),
|
||||
nonce5, sizeof(nonce5), tag5, sizeof(tag5)));
|
||||
TEST_ASSERT(!test_aes_gcm_raw(key6, sizeof(key6),
|
||||
plain6, cipher6, sizeof(plain6),
|
||||
nonce6, sizeof(nonce6), tag6, sizeof(tag6)));
|
||||
TEST_ASSERT(!test_aes_gcm_raw(key7, sizeof(key7),
|
||||
plain7, cipher7, sizeof(plain7),
|
||||
nonce7, sizeof(nonce7), tag7, sizeof(tag7)));
|
||||
|
||||
return EC_SUCCESS;
|
||||
}
|
||||
|
||||
static void test_aes_gcm_speed(void)
|
||||
{
|
||||
int i;
|
||||
static const uint8_t key[] = {
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
};
|
||||
const int key_size = sizeof(key);
|
||||
static const uint8_t plaintext[512] = { 0 };
|
||||
const int plaintext_size = sizeof(plaintext);
|
||||
static const uint8_t nonce[] = {
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00,
|
||||
};
|
||||
const int nonce_size = sizeof(nonce);
|
||||
uint8_t tag[12] = {0};
|
||||
const int tag_size = sizeof(tag);
|
||||
|
||||
uint8_t *out = tmp;
|
||||
static AES_KEY aes_key;
|
||||
static GCM128_CONTEXT ctx;
|
||||
timestamp_t t0, t1;
|
||||
|
||||
assert(plaintext_size <= sizeof(tmp));
|
||||
|
||||
t0 = get_time();
|
||||
for (i = 0; i < 1000; i++) {
|
||||
AES_set_encrypt_key(key, 8 * key_size, &aes_key);
|
||||
CRYPTO_gcm128_init(&ctx, &aes_key, (block128_f)AES_encrypt, 0);
|
||||
CRYPTO_gcm128_setiv(&ctx, &aes_key, nonce, nonce_size);
|
||||
CRYPTO_gcm128_encrypt(&ctx, &aes_key, plaintext, out,
|
||||
plaintext_size);
|
||||
CRYPTO_gcm128_tag(&ctx, tag, tag_size);
|
||||
}
|
||||
t1 = get_time();
|
||||
ccprintf("AES-GCM duration %ld us\n", t1.val - t0.val);
|
||||
}
|
||||
|
||||
static int test_aes_raw(const uint8_t *key, int key_size,
|
||||
const uint8_t *plaintext, const uint8_t *ciphertext)
|
||||
{
|
||||
AES_KEY aes_key;
|
||||
uint8_t block[AES_BLOCK_SIZE];
|
||||
uint8_t *block = tmp;
|
||||
|
||||
TEST_ASSERT(AES_BLOCK_SIZE <= sizeof(tmp));
|
||||
|
||||
TEST_ASSERT(AES_set_encrypt_key(key, 8 * key_size, &aes_key) == 0);
|
||||
|
||||
/* Test encryption. */
|
||||
AES_encrypt(plaintext, block, &aes_key);
|
||||
TEST_ASSERT_ARRAY_EQ(ciphertext, block, sizeof(block));
|
||||
TEST_ASSERT_ARRAY_EQ(ciphertext, block, AES_BLOCK_SIZE);
|
||||
|
||||
/* Test in-place encryption. */
|
||||
memcpy(block, plaintext, AES_BLOCK_SIZE);
|
||||
AES_encrypt(block, block, &aes_key);
|
||||
TEST_ASSERT_ARRAY_EQ(ciphertext, block, sizeof(block));
|
||||
TEST_ASSERT_ARRAY_EQ(ciphertext, block, AES_BLOCK_SIZE);
|
||||
|
||||
TEST_ASSERT(AES_set_decrypt_key(key, 8 * key_size, &aes_key) == 0);
|
||||
|
||||
/* Test decryption. */
|
||||
AES_decrypt(ciphertext, block, &aes_key);
|
||||
TEST_ASSERT_ARRAY_EQ(plaintext, block, sizeof(block));
|
||||
TEST_ASSERT_ARRAY_EQ(plaintext, block, AES_BLOCK_SIZE);
|
||||
|
||||
/* Test in-place decryption. */
|
||||
memcpy(block, ciphertext, AES_BLOCK_SIZE);
|
||||
AES_decrypt(block, block, &aes_key);
|
||||
TEST_ASSERT_ARRAY_EQ(plaintext, block, sizeof(block));
|
||||
TEST_ASSERT_ARRAY_EQ(plaintext, block, AES_BLOCK_SIZE);
|
||||
|
||||
return EC_SUCCESS;
|
||||
}
|
||||
|
|
@ -140,5 +507,11 @@ void run_test(void)
|
|||
watchdog_reload();
|
||||
RUN_TEST(test_aes);
|
||||
|
||||
/* do not check result, just as a benchmark */
|
||||
test_aes_gcm_speed();
|
||||
|
||||
watchdog_reload();
|
||||
RUN_TEST(test_aes_gcm);
|
||||
|
||||
test_print_result();
|
||||
}
|
||||
|
|
|
|||
|
|
@ -20,6 +20,7 @@
|
|||
|
||||
#ifdef TEST_AES
|
||||
#define CONFIG_AES
|
||||
#define CONFIG_AES_GCM
|
||||
#endif
|
||||
|
||||
#ifdef TEST_BASE32
|
||||
|
|
|
|||
|
|
@ -46,24 +46,41 @@
|
|||
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
* ==================================================================== */
|
||||
|
||||
#include <openssl/base.h>
|
||||
#include "aes-gcm.h"
|
||||
#include "common.h"
|
||||
#include "endian.h"
|
||||
#include "util.h"
|
||||
|
||||
#include <assert.h>
|
||||
#include <string.h>
|
||||
#define STRICT_ALIGNMENT 1
|
||||
|
||||
#include <openssl/mem.h>
|
||||
#include <openssl/cpu.h>
|
||||
#define OPENSSL_memcpy memcpy
|
||||
#define OPENSSL_memset memset
|
||||
#define CRYPTO_memcmp safe_memcmp
|
||||
|
||||
#include "internal.h"
|
||||
#include "../../internal.h"
|
||||
|
||||
#if !defined(OPENSSL_NO_ASM) && \
|
||||
(defined(OPENSSL_X86) || defined(OPENSSL_X86_64) || \
|
||||
defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64) || \
|
||||
defined(OPENSSL_PPC64LE))
|
||||
#ifdef CORE_CORTEX_M
|
||||
#define GHASH_ASM
|
||||
#define OPENSSL_ARM
|
||||
#define __ARM_ARCH__ 7
|
||||
#endif
|
||||
|
||||
static inline uint32_t CRYPTO_bswap4(uint32_t x) {
|
||||
return __builtin_bswap32(x);
|
||||
}
|
||||
|
||||
static inline uint64_t CRYPTO_bswap8(uint64_t x) {
|
||||
return __builtin_bswap64(x);
|
||||
}
|
||||
|
||||
static inline size_t load_word_le(const void *in) {
|
||||
size_t v;
|
||||
OPENSSL_memcpy(&v, in, sizeof(v));
|
||||
return v;
|
||||
}
|
||||
|
||||
static inline void store_word_le(void *out, size_t v) {
|
||||
OPENSSL_memcpy(out, &v, sizeof(v));
|
||||
}
|
||||
|
||||
#define PACK(s) ((size_t)(s) << (sizeof(size_t) * 8 - 16))
|
||||
#define REDUCE1BIT(V) \
|
||||
do { \
|
||||
|
|
@ -283,13 +300,12 @@ void gcm_ghash_4bit_mmx(uint64_t Xi[2], const u128 Htable[16], const uint8_t *in
|
|||
#endif
|
||||
|
||||
#elif defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)
|
||||
#include <openssl/arm_arch.h>
|
||||
#if __ARM_ARCH__ >= 7
|
||||
#define GHASH_ASM_ARM
|
||||
#define GCM_FUNCREF_4BIT
|
||||
|
||||
static int pmull_capable(void) {
|
||||
return CRYPTO_is_ARMv8_PMULL_capable();
|
||||
return 0;
|
||||
}
|
||||
|
||||
void gcm_init_v8(u128 Htable[16], const uint64_t Xi[2]);
|
||||
|
|
@ -297,7 +313,7 @@ void gcm_gmult_v8(uint64_t Xi[2], const u128 Htable[16]);
|
|||
void gcm_ghash_v8(uint64_t Xi[2], const u128 Htable[16], const uint8_t *inp,
|
||||
size_t len);
|
||||
|
||||
#if defined(OPENSSL_ARM)
|
||||
#if defined(OPENSSL_ARM_NEON)
|
||||
// 32-bit ARM also has support for doing GCM with NEON instructions.
|
||||
static int neon_capable(void) {
|
||||
return CRYPTO_is_NEON_capable();
|
||||
|
|
@ -313,14 +329,14 @@ static int neon_capable(void) {
|
|||
return 0;
|
||||
}
|
||||
static void gcm_init_neon(u128 Htable[16], const uint64_t Xi[2]) {
|
||||
abort();
|
||||
|
||||
}
|
||||
static void gcm_gmult_neon(uint64_t Xi[2], const u128 Htable[16]) {
|
||||
abort();
|
||||
|
||||
}
|
||||
static void gcm_ghash_neon(uint64_t Xi[2], const u128 Htable[16],
|
||||
const uint8_t *inp, size_t len) {
|
||||
abort();
|
||||
|
||||
}
|
||||
#endif
|
||||
|
||||
|
|
@ -344,11 +360,9 @@ void gcm_ghash_p8(uint64_t Xi[2], const u128 Htable[16], const uint8_t *inp,
|
|||
#endif
|
||||
#endif
|
||||
|
||||
void CRYPTO_ghash_init(gmult_func *out_mult, ghash_func *out_hash,
|
||||
u128 *out_key, u128 out_table[16],
|
||||
int *out_is_avx,
|
||||
const uint8_t *gcm_key) {
|
||||
*out_is_avx = 0;
|
||||
static void CRYPTO_ghash_init(gmult_func *out_mult, ghash_func *out_hash,
|
||||
u128 *out_key, u128 out_table[16],
|
||||
const uint8_t *gcm_key) {
|
||||
|
||||
union {
|
||||
uint64_t u[2];
|
||||
|
|
@ -426,11 +440,8 @@ void CRYPTO_gcm128_init(GCM128_CONTEXT *ctx, const void *aes_key,
|
|||
OPENSSL_memset(gcm_key, 0, sizeof(gcm_key));
|
||||
(*block)(gcm_key, gcm_key, aes_key);
|
||||
|
||||
int is_avx;
|
||||
CRYPTO_ghash_init(&ctx->gmult, &ctx->ghash, &ctx->H, ctx->Htable, &is_avx,
|
||||
CRYPTO_ghash_init(&ctx->gmult, &ctx->ghash, &ctx->H, ctx->Htable,
|
||||
gcm_key);
|
||||
|
||||
ctx->use_aesni_gcm_crypt = (is_avx && block_is_hwaes) ? 1 : 0;
|
||||
}
|
||||
|
||||
void CRYPTO_gcm128_setiv(GCM128_CONTEXT *ctx, const void *key,
|
||||
|
|
@ -807,215 +818,6 @@ int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, const void *key,
|
|||
return 1;
|
||||
}
|
||||
|
||||
int CRYPTO_gcm128_encrypt_ctr32(GCM128_CONTEXT *ctx, const void *key,
|
||||
const uint8_t *in, uint8_t *out, size_t len,
|
||||
ctr128_f stream) {
|
||||
unsigned int n, ctr;
|
||||
uint64_t mlen = ctx->len.u[1];
|
||||
#ifdef GCM_FUNCREF_4BIT
|
||||
void (*gcm_gmult_p)(uint64_t Xi[2], const u128 Htable[16]) = ctx->gmult;
|
||||
#ifdef GHASH
|
||||
void (*gcm_ghash_p)(uint64_t Xi[2], const u128 Htable[16], const uint8_t *inp,
|
||||
size_t len) = ctx->ghash;
|
||||
#endif
|
||||
#endif
|
||||
|
||||
mlen += len;
|
||||
if (mlen > ((UINT64_C(1) << 36) - 32) ||
|
||||
(sizeof(len) == 8 && mlen < len)) {
|
||||
return 0;
|
||||
}
|
||||
ctx->len.u[1] = mlen;
|
||||
|
||||
if (ctx->ares) {
|
||||
// First call to encrypt finalizes GHASH(AAD)
|
||||
GCM_MUL(ctx, Xi);
|
||||
ctx->ares = 0;
|
||||
}
|
||||
|
||||
n = ctx->mres;
|
||||
if (n) {
|
||||
while (n && len) {
|
||||
ctx->Xi.c[n] ^= *(out++) = *(in++) ^ ctx->EKi.c[n];
|
||||
--len;
|
||||
n = (n + 1) % 16;
|
||||
}
|
||||
if (n == 0) {
|
||||
GCM_MUL(ctx, Xi);
|
||||
} else {
|
||||
ctx->mres = n;
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
#if defined(AESNI_GCM)
|
||||
if (ctx->use_aesni_gcm_crypt) {
|
||||
// |aesni_gcm_encrypt| may not process all the input given to it. It may
|
||||
// not process *any* of its input if it is deemed too small.
|
||||
size_t bulk = aesni_gcm_encrypt(in, out, len, key, ctx->Yi.c, ctx->Xi.u);
|
||||
in += bulk;
|
||||
out += bulk;
|
||||
len -= bulk;
|
||||
}
|
||||
#endif
|
||||
|
||||
ctr = CRYPTO_bswap4(ctx->Yi.d[3]);
|
||||
|
||||
#if defined(GHASH)
|
||||
while (len >= GHASH_CHUNK) {
|
||||
(*stream)(in, out, GHASH_CHUNK / 16, key, ctx->Yi.c);
|
||||
ctr += GHASH_CHUNK / 16;
|
||||
ctx->Yi.d[3] = CRYPTO_bswap4(ctr);
|
||||
GHASH(ctx, out, GHASH_CHUNK);
|
||||
out += GHASH_CHUNK;
|
||||
in += GHASH_CHUNK;
|
||||
len -= GHASH_CHUNK;
|
||||
}
|
||||
#endif
|
||||
size_t i = len & kSizeTWithoutLower4Bits;
|
||||
if (i != 0) {
|
||||
size_t j = i / 16;
|
||||
|
||||
(*stream)(in, out, j, key, ctx->Yi.c);
|
||||
ctr += (unsigned int)j;
|
||||
ctx->Yi.d[3] = CRYPTO_bswap4(ctr);
|
||||
in += i;
|
||||
len -= i;
|
||||
#if defined(GHASH)
|
||||
GHASH(ctx, out, i);
|
||||
out += i;
|
||||
#else
|
||||
while (j--) {
|
||||
for (i = 0; i < 16; ++i) {
|
||||
ctx->Xi.c[i] ^= out[i];
|
||||
}
|
||||
GCM_MUL(ctx, Xi);
|
||||
out += 16;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
if (len) {
|
||||
(*ctx->block)(ctx->Yi.c, ctx->EKi.c, key);
|
||||
++ctr;
|
||||
ctx->Yi.d[3] = CRYPTO_bswap4(ctr);
|
||||
while (len--) {
|
||||
ctx->Xi.c[n] ^= out[n] = in[n] ^ ctx->EKi.c[n];
|
||||
++n;
|
||||
}
|
||||
}
|
||||
|
||||
ctx->mres = n;
|
||||
return 1;
|
||||
}
|
||||
|
||||
int CRYPTO_gcm128_decrypt_ctr32(GCM128_CONTEXT *ctx, const void *key,
|
||||
const uint8_t *in, uint8_t *out, size_t len,
|
||||
ctr128_f stream) {
|
||||
unsigned int n, ctr;
|
||||
uint64_t mlen = ctx->len.u[1];
|
||||
#ifdef GCM_FUNCREF_4BIT
|
||||
void (*gcm_gmult_p)(uint64_t Xi[2], const u128 Htable[16]) = ctx->gmult;
|
||||
#ifdef GHASH
|
||||
void (*gcm_ghash_p)(uint64_t Xi[2], const u128 Htable[16], const uint8_t *inp,
|
||||
size_t len) = ctx->ghash;
|
||||
#endif
|
||||
#endif
|
||||
|
||||
mlen += len;
|
||||
if (mlen > ((UINT64_C(1) << 36) - 32) ||
|
||||
(sizeof(len) == 8 && mlen < len)) {
|
||||
return 0;
|
||||
}
|
||||
ctx->len.u[1] = mlen;
|
||||
|
||||
if (ctx->ares) {
|
||||
// First call to decrypt finalizes GHASH(AAD)
|
||||
GCM_MUL(ctx, Xi);
|
||||
ctx->ares = 0;
|
||||
}
|
||||
|
||||
n = ctx->mres;
|
||||
if (n) {
|
||||
while (n && len) {
|
||||
uint8_t c = *(in++);
|
||||
*(out++) = c ^ ctx->EKi.c[n];
|
||||
ctx->Xi.c[n] ^= c;
|
||||
--len;
|
||||
n = (n + 1) % 16;
|
||||
}
|
||||
if (n == 0) {
|
||||
GCM_MUL(ctx, Xi);
|
||||
} else {
|
||||
ctx->mres = n;
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
#if defined(AESNI_GCM)
|
||||
if (ctx->use_aesni_gcm_crypt) {
|
||||
// |aesni_gcm_decrypt| may not process all the input given to it. It may
|
||||
// not process *any* of its input if it is deemed too small.
|
||||
size_t bulk = aesni_gcm_decrypt(in, out, len, key, ctx->Yi.c, ctx->Xi.u);
|
||||
in += bulk;
|
||||
out += bulk;
|
||||
len -= bulk;
|
||||
}
|
||||
#endif
|
||||
|
||||
ctr = CRYPTO_bswap4(ctx->Yi.d[3]);
|
||||
|
||||
#if defined(GHASH)
|
||||
while (len >= GHASH_CHUNK) {
|
||||
GHASH(ctx, in, GHASH_CHUNK);
|
||||
(*stream)(in, out, GHASH_CHUNK / 16, key, ctx->Yi.c);
|
||||
ctr += GHASH_CHUNK / 16;
|
||||
ctx->Yi.d[3] = CRYPTO_bswap4(ctr);
|
||||
out += GHASH_CHUNK;
|
||||
in += GHASH_CHUNK;
|
||||
len -= GHASH_CHUNK;
|
||||
}
|
||||
#endif
|
||||
size_t i = len & kSizeTWithoutLower4Bits;
|
||||
if (i != 0) {
|
||||
size_t j = i / 16;
|
||||
|
||||
#if defined(GHASH)
|
||||
GHASH(ctx, in, i);
|
||||
#else
|
||||
while (j--) {
|
||||
size_t k;
|
||||
for (k = 0; k < 16; ++k) {
|
||||
ctx->Xi.c[k] ^= in[k];
|
||||
}
|
||||
GCM_MUL(ctx, Xi);
|
||||
in += 16;
|
||||
}
|
||||
j = i / 16;
|
||||
in -= i;
|
||||
#endif
|
||||
(*stream)(in, out, j, key, ctx->Yi.c);
|
||||
ctr += (unsigned int)j;
|
||||
ctx->Yi.d[3] = CRYPTO_bswap4(ctr);
|
||||
out += i;
|
||||
in += i;
|
||||
len -= i;
|
||||
}
|
||||
if (len) {
|
||||
(*ctx->block)(ctx->Yi.c, ctx->EKi.c, key);
|
||||
++ctr;
|
||||
ctx->Yi.d[3] = CRYPTO_bswap4(ctr);
|
||||
while (len--) {
|
||||
uint8_t c = in[n];
|
||||
ctx->Xi.c[n] ^= c;
|
||||
out[n] = c ^ ctx->EKi.c[n];
|
||||
++n;
|
||||
}
|
||||
}
|
||||
|
||||
ctx->mres = n;
|
||||
return 1;
|
||||
}
|
||||
|
||||
int CRYPTO_gcm128_finish(GCM128_CONTEXT *ctx, const uint8_t *tag, size_t len) {
|
||||
uint64_t alen = ctx->len.u[0] << 3;
|
||||
uint64_t clen = ctx->len.u[1] << 3;
|
||||
|
|
|
|||
|
|
@ -8,12 +8,7 @@
|
|||
@ in the file LICENSE in the source distribution or at
|
||||
@ https://www.openssl.org/source/license.html
|
||||
|
||||
#include <openssl/arm_arch.h>
|
||||
|
||||
@ Silence ARMv8 deprecated IT instruction warnings. This file is used by both
|
||||
@ ARMv7 and ARMv8 processors and does not use ARMv8 instructions. (ARMv8 PMULL
|
||||
@ instructions are in aesv8-armx.pl.)
|
||||
.arch armv7-a
|
||||
#define __ARM_ARCH__ 7
|
||||
|
||||
.text
|
||||
#if defined(__thumb2__) || defined(__clang__)
|
||||
|
|
@ -111,7 +106,7 @@ gcm_ghash_4bit:
|
|||
#ifdef __thumb2__
|
||||
it pl
|
||||
#endif
|
||||
ldrplb r12,[r2,r3]
|
||||
ldrbpl r12,[r2,r3]
|
||||
eor r6,r6,r7,lsl#28
|
||||
eor r7,r11,r7,lsr#4
|
||||
|
||||
|
|
@ -124,7 +119,7 @@ gcm_ghash_4bit:
|
|||
#ifdef __thumb2__
|
||||
it pl
|
||||
#endif
|
||||
ldrplb r8,[r0,r3]
|
||||
ldrbpl r8,[r0,r3]
|
||||
eor r4,r4,r5,lsl#28
|
||||
eor r5,r9,r5,lsr#4
|
||||
ldrh r9,[sp,r14]
|
||||
|
|
@ -180,7 +175,7 @@ gcm_ghash_4bit:
|
|||
#ifdef __thumb2__
|
||||
it ne
|
||||
#endif
|
||||
ldrneb r12,[r2,#15]
|
||||
ldrbne r12,[r2,#15]
|
||||
#if __ARM_ARCH__>=7 && defined(__ARMEL__)
|
||||
rev r6,r6
|
||||
str r6,[r0,#4]
|
||||
|
|
@ -270,7 +265,7 @@ gcm_gmult_4bit:
|
|||
#ifdef __thumb2__
|
||||
it pl
|
||||
#endif
|
||||
ldrplb r12,[r0,r3]
|
||||
ldrbpl r12,[r0,r3]
|
||||
eor r6,r6,r7,lsl#28
|
||||
eor r7,r11,r7,lsr#4
|
||||
|
||||
|
|
@ -363,7 +358,7 @@ gcm_gmult_4bit:
|
|||
.word 0xe12fff1e @ interoperable with Thumb ISA:-)
|
||||
#endif
|
||||
.size gcm_gmult_4bit,.-gcm_gmult_4bit
|
||||
#if __ARM_MAX_ARCH__>=7
|
||||
#ifdef __ARM_NEON__
|
||||
.arch armv7-a
|
||||
.fpu neon
|
||||
|
||||
|
|
|
|||
|
|
@ -46,46 +46,12 @@
|
|||
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
* ==================================================================== */
|
||||
|
||||
#ifndef OPENSSL_HEADER_MODES_INTERNAL_H
|
||||
#define OPENSSL_HEADER_MODES_INTERNAL_H
|
||||
#ifndef __CROS_EC_AES_GCM_H
|
||||
#define __CROS_EC_AES_GCM_H
|
||||
|
||||
#include <openssl/base.h>
|
||||
|
||||
#include <string.h>
|
||||
|
||||
#include "../../internal.h"
|
||||
|
||||
#if defined(__cplusplus)
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
|
||||
#define STRICT_ALIGNMENT 1
|
||||
#if defined(OPENSSL_X86_64) || defined(OPENSSL_X86) || defined(OPENSSL_AARCH64)
|
||||
#undef STRICT_ALIGNMENT
|
||||
#define STRICT_ALIGNMENT 0
|
||||
#endif
|
||||
|
||||
static inline uint32_t GETU32(const void *in) {
|
||||
uint32_t v;
|
||||
OPENSSL_memcpy(&v, in, sizeof(v));
|
||||
return CRYPTO_bswap4(v);
|
||||
}
|
||||
|
||||
static inline void PUTU32(void *out, uint32_t v) {
|
||||
v = CRYPTO_bswap4(v);
|
||||
OPENSSL_memcpy(out, &v, sizeof(v));
|
||||
}
|
||||
|
||||
static inline size_t load_word_le(const void *in) {
|
||||
size_t v;
|
||||
OPENSSL_memcpy(&v, in, sizeof(v));
|
||||
return v;
|
||||
}
|
||||
|
||||
static inline void store_word_le(void *out, size_t v) {
|
||||
OPENSSL_memcpy(out, &v, sizeof(v));
|
||||
}
|
||||
#include "common.h"
|
||||
#include "endian.h"
|
||||
#include "util.h"
|
||||
|
||||
// block128_f is the type of a 128-bit, block cipher.
|
||||
typedef void (*block128_f)(const uint8_t in[16], uint8_t out[16],
|
||||
|
|
@ -125,10 +91,6 @@ struct gcm128_context {
|
|||
|
||||
unsigned int mres, ares;
|
||||
block128_f block;
|
||||
|
||||
// use_aesni_gcm_crypt is true if this context should use the assembly
|
||||
// functions |aesni_gcm_encrypt| and |aesni_gcm_decrypt| to process data.
|
||||
unsigned use_aesni_gcm_crypt:1;
|
||||
};
|
||||
|
||||
|
||||
|
|
@ -141,77 +103,45 @@ struct gcm128_context {
|
|||
|
||||
typedef struct gcm128_context GCM128_CONTEXT;
|
||||
|
||||
// CRYPTO_ghash_init writes a precomputed table of powers of |gcm_key| to
|
||||
// |out_table| and sets |*out_mult| and |*out_hash| to (potentially hardware
|
||||
// accelerated) functions for performing operations in the GHASH field. If the
|
||||
// AVX implementation was used |*out_is_avx| will be true.
|
||||
void CRYPTO_ghash_init(gmult_func *out_mult, ghash_func *out_hash,
|
||||
u128 *out_key, u128 out_table[16], int *out_is_avx,
|
||||
const uint8_t *gcm_key);
|
||||
|
||||
// CRYPTO_gcm128_init initialises |ctx| to use |block| (typically AES) with
|
||||
// the given key. |block_is_hwaes| is one if |block| is |aes_hw_encrypt|.
|
||||
OPENSSL_EXPORT void CRYPTO_gcm128_init(GCM128_CONTEXT *ctx, const void *key,
|
||||
void CRYPTO_gcm128_init(GCM128_CONTEXT *ctx, const void *key,
|
||||
block128_f block, int block_is_hwaes);
|
||||
|
||||
// CRYPTO_gcm128_setiv sets the IV (nonce) for |ctx|. The |key| must be the
|
||||
// same key that was passed to |CRYPTO_gcm128_init|.
|
||||
OPENSSL_EXPORT void CRYPTO_gcm128_setiv(GCM128_CONTEXT *ctx, const void *key,
|
||||
void CRYPTO_gcm128_setiv(GCM128_CONTEXT *ctx, const void *key,
|
||||
const uint8_t *iv, size_t iv_len);
|
||||
|
||||
// CRYPTO_gcm128_aad sets the authenticated data for an instance of GCM.
|
||||
// This must be called before and data is encrypted. It returns one on success
|
||||
// and zero otherwise.
|
||||
OPENSSL_EXPORT int CRYPTO_gcm128_aad(GCM128_CONTEXT *ctx, const uint8_t *aad,
|
||||
int CRYPTO_gcm128_aad(GCM128_CONTEXT *ctx, const uint8_t *aad,
|
||||
size_t len);
|
||||
|
||||
// CRYPTO_gcm128_encrypt encrypts |len| bytes from |in| to |out|. The |key|
|
||||
// must be the same key that was passed to |CRYPTO_gcm128_init|. It returns one
|
||||
// on success and zero otherwise.
|
||||
OPENSSL_EXPORT int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx, const void *key,
|
||||
int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx, const void *key,
|
||||
const uint8_t *in, uint8_t *out,
|
||||
size_t len);
|
||||
|
||||
// CRYPTO_gcm128_decrypt decrypts |len| bytes from |in| to |out|. The |key|
|
||||
// must be the same key that was passed to |CRYPTO_gcm128_init|. It returns one
|
||||
// on success and zero otherwise.
|
||||
OPENSSL_EXPORT int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, const void *key,
|
||||
int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, const void *key,
|
||||
const uint8_t *in, uint8_t *out,
|
||||
size_t len);
|
||||
|
||||
// CRYPTO_gcm128_encrypt_ctr32 encrypts |len| bytes from |in| to |out| using
|
||||
// a CTR function that only handles the bottom 32 bits of the nonce, like
|
||||
// |CRYPTO_ctr128_encrypt_ctr32|. The |key| must be the same key that was
|
||||
// passed to |CRYPTO_gcm128_init|. It returns one on success and zero
|
||||
// otherwise.
|
||||
OPENSSL_EXPORT int CRYPTO_gcm128_encrypt_ctr32(GCM128_CONTEXT *ctx,
|
||||
const void *key,
|
||||
const uint8_t *in, uint8_t *out,
|
||||
size_t len, ctr128_f stream);
|
||||
|
||||
// CRYPTO_gcm128_decrypt_ctr32 decrypts |len| bytes from |in| to |out| using
|
||||
// a CTR function that only handles the bottom 32 bits of the nonce, like
|
||||
// |CRYPTO_ctr128_encrypt_ctr32|. The |key| must be the same key that was
|
||||
// passed to |CRYPTO_gcm128_init|. It returns one on success and zero
|
||||
// otherwise.
|
||||
OPENSSL_EXPORT int CRYPTO_gcm128_decrypt_ctr32(GCM128_CONTEXT *ctx,
|
||||
const void *key,
|
||||
const uint8_t *in, uint8_t *out,
|
||||
size_t len, ctr128_f stream);
|
||||
|
||||
// CRYPTO_gcm128_finish calculates the authenticator and compares it against
|
||||
// |len| bytes of |tag|. It returns one on success and zero otherwise.
|
||||
OPENSSL_EXPORT int CRYPTO_gcm128_finish(GCM128_CONTEXT *ctx, const uint8_t *tag,
|
||||
int CRYPTO_gcm128_finish(GCM128_CONTEXT *ctx, const uint8_t *tag,
|
||||
size_t len);
|
||||
|
||||
// CRYPTO_gcm128_tag calculates the authenticator and copies it into |tag|.
|
||||
// The minimum of |len| and 16 bytes are copied into |tag|.
|
||||
OPENSSL_EXPORT void CRYPTO_gcm128_tag(GCM128_CONTEXT *ctx, uint8_t *tag,
|
||||
void CRYPTO_gcm128_tag(GCM128_CONTEXT *ctx, uint8_t *tag,
|
||||
size_t len);
|
||||
|
||||
|
||||
#if defined(__cplusplus)
|
||||
} // extern C
|
||||
#endif
|
||||
|
||||
#endif // OPENSSL_HEADER_MODES_INTERNAL_H
|
||||
#endif // __CROS_EC_AES_GCM_H
|
||||
|
|
|
|||
Loading…
Reference in New Issue