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-rw-r--r--comm/third_party/libgcrypt/cipher/sm4.c1251
1 files changed, 1251 insertions, 0 deletions
diff --git a/comm/third_party/libgcrypt/cipher/sm4.c b/comm/third_party/libgcrypt/cipher/sm4.c
new file mode 100644
index 0000000000..c8dd0406e1
--- /dev/null
+++ b/comm/third_party/libgcrypt/cipher/sm4.c
@@ -0,0 +1,1251 @@
+/* sm4.c - SM4 Cipher Algorithm
+ * Copyright (C) 2020 Alibaba Group.
+ * Copyright (C) 2020 Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
+ * Copyright (C) 2020 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ *
+ * This file is part of Libgcrypt.
+ *
+ * Libgcrypt is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * Libgcrypt is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "types.h" /* for byte and u32 typedefs */
+#include "bithelp.h"
+#include "g10lib.h"
+#include "cipher.h"
+#include "bufhelp.h"
+#include "cipher-internal.h"
+#include "cipher-selftest.h"
+
+/* Helper macro to force alignment to 64 bytes. */
+#ifdef HAVE_GCC_ATTRIBUTE_ALIGNED
+# define ATTR_ALIGNED_64 __attribute__ ((aligned (64)))
+#else
+# define ATTR_ALIGNED_64
+#endif
+
+/* USE_AESNI_AVX inidicates whether to compile with Intel AES-NI/AVX code. */
+#undef USE_AESNI_AVX
+#if defined(ENABLE_AESNI_SUPPORT) && defined(ENABLE_AVX_SUPPORT)
+# if defined(__x86_64__) && (defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS) || \
+ defined(HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS))
+# define USE_AESNI_AVX 1
+# endif
+#endif
+
+/* USE_AESNI_AVX inidicates whether to compile with Intel AES-NI/AVX2 code. */
+#undef USE_AESNI_AVX2
+#if defined(ENABLE_AESNI_SUPPORT) && defined(ENABLE_AVX2_SUPPORT)
+# if defined(__x86_64__) && (defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS) || \
+ defined(HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS))
+# define USE_AESNI_AVX2 1
+# endif
+#endif
+
+/* Assembly implementations use SystemV ABI, ABI conversion and additional
+ * stack to store XMM6-XMM15 needed on Win64. */
+#undef ASM_FUNC_ABI
+#if defined(USE_AESNI_AVX) || defined(USE_AESNI_AVX2)
+# ifdef HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS
+# define ASM_FUNC_ABI __attribute__((sysv_abi))
+# else
+# define ASM_FUNC_ABI
+# endif
+#endif
+
+static const char *sm4_selftest (void);
+
+static void _gcry_sm4_ctr_enc (void *context, unsigned char *ctr,
+ void *outbuf_arg, const void *inbuf_arg,
+ size_t nblocks);
+static void _gcry_sm4_cbc_dec (void *context, unsigned char *iv,
+ void *outbuf_arg, const void *inbuf_arg,
+ size_t nblocks);
+static void _gcry_sm4_cfb_dec (void *context, unsigned char *iv,
+ void *outbuf_arg, const void *inbuf_arg,
+ size_t nblocks);
+static size_t _gcry_sm4_ocb_crypt (gcry_cipher_hd_t c, void *outbuf_arg,
+ const void *inbuf_arg, size_t nblocks,
+ int encrypt);
+static size_t _gcry_sm4_ocb_auth (gcry_cipher_hd_t c, const void *abuf_arg,
+ size_t nblocks);
+
+typedef struct
+{
+ u32 rkey_enc[32];
+ u32 rkey_dec[32];
+#ifdef USE_AESNI_AVX
+ unsigned int use_aesni_avx:1;
+#endif
+#ifdef USE_AESNI_AVX2
+ unsigned int use_aesni_avx2:1;
+#endif
+} SM4_context;
+
+static const u32 fk[4] =
+{
+ 0xa3b1bac6, 0x56aa3350, 0x677d9197, 0xb27022dc
+};
+
+static struct
+{
+ volatile u32 counter_head;
+ u32 cacheline_align[64 / 4 - 1];
+ byte S[256];
+ volatile u32 counter_tail;
+} sbox_table ATTR_ALIGNED_64 =
+ {
+ 0,
+ { 0, },
+ {
+ 0xd6, 0x90, 0xe9, 0xfe, 0xcc, 0xe1, 0x3d, 0xb7,
+ 0x16, 0xb6, 0x14, 0xc2, 0x28, 0xfb, 0x2c, 0x05,
+ 0x2b, 0x67, 0x9a, 0x76, 0x2a, 0xbe, 0x04, 0xc3,
+ 0xaa, 0x44, 0x13, 0x26, 0x49, 0x86, 0x06, 0x99,
+ 0x9c, 0x42, 0x50, 0xf4, 0x91, 0xef, 0x98, 0x7a,
+ 0x33, 0x54, 0x0b, 0x43, 0xed, 0xcf, 0xac, 0x62,
+ 0xe4, 0xb3, 0x1c, 0xa9, 0xc9, 0x08, 0xe8, 0x95,
+ 0x80, 0xdf, 0x94, 0xfa, 0x75, 0x8f, 0x3f, 0xa6,
+ 0x47, 0x07, 0xa7, 0xfc, 0xf3, 0x73, 0x17, 0xba,
+ 0x83, 0x59, 0x3c, 0x19, 0xe6, 0x85, 0x4f, 0xa8,
+ 0x68, 0x6b, 0x81, 0xb2, 0x71, 0x64, 0xda, 0x8b,
+ 0xf8, 0xeb, 0x0f, 0x4b, 0x70, 0x56, 0x9d, 0x35,
+ 0x1e, 0x24, 0x0e, 0x5e, 0x63, 0x58, 0xd1, 0xa2,
+ 0x25, 0x22, 0x7c, 0x3b, 0x01, 0x21, 0x78, 0x87,
+ 0xd4, 0x00, 0x46, 0x57, 0x9f, 0xd3, 0x27, 0x52,
+ 0x4c, 0x36, 0x02, 0xe7, 0xa0, 0xc4, 0xc8, 0x9e,
+ 0xea, 0xbf, 0x8a, 0xd2, 0x40, 0xc7, 0x38, 0xb5,
+ 0xa3, 0xf7, 0xf2, 0xce, 0xf9, 0x61, 0x15, 0xa1,
+ 0xe0, 0xae, 0x5d, 0xa4, 0x9b, 0x34, 0x1a, 0x55,
+ 0xad, 0x93, 0x32, 0x30, 0xf5, 0x8c, 0xb1, 0xe3,
+ 0x1d, 0xf6, 0xe2, 0x2e, 0x82, 0x66, 0xca, 0x60,
+ 0xc0, 0x29, 0x23, 0xab, 0x0d, 0x53, 0x4e, 0x6f,
+ 0xd5, 0xdb, 0x37, 0x45, 0xde, 0xfd, 0x8e, 0x2f,
+ 0x03, 0xff, 0x6a, 0x72, 0x6d, 0x6c, 0x5b, 0x51,
+ 0x8d, 0x1b, 0xaf, 0x92, 0xbb, 0xdd, 0xbc, 0x7f,
+ 0x11, 0xd9, 0x5c, 0x41, 0x1f, 0x10, 0x5a, 0xd8,
+ 0x0a, 0xc1, 0x31, 0x88, 0xa5, 0xcd, 0x7b, 0xbd,
+ 0x2d, 0x74, 0xd0, 0x12, 0xb8, 0xe5, 0xb4, 0xb0,
+ 0x89, 0x69, 0x97, 0x4a, 0x0c, 0x96, 0x77, 0x7e,
+ 0x65, 0xb9, 0xf1, 0x09, 0xc5, 0x6e, 0xc6, 0x84,
+ 0x18, 0xf0, 0x7d, 0xec, 0x3a, 0xdc, 0x4d, 0x20,
+ 0x79, 0xee, 0x5f, 0x3e, 0xd7, 0xcb, 0x39, 0x48
+ },
+ 0
+ };
+
+static const u32 ck[] =
+{
+ 0x00070e15, 0x1c232a31, 0x383f464d, 0x545b6269,
+ 0x70777e85, 0x8c939aa1, 0xa8afb6bd, 0xc4cbd2d9,
+ 0xe0e7eef5, 0xfc030a11, 0x181f262d, 0x343b4249,
+ 0x50575e65, 0x6c737a81, 0x888f969d, 0xa4abb2b9,
+ 0xc0c7ced5, 0xdce3eaf1, 0xf8ff060d, 0x141b2229,
+ 0x30373e45, 0x4c535a61, 0x686f767d, 0x848b9299,
+ 0xa0a7aeb5, 0xbcc3cad1, 0xd8dfe6ed, 0xf4fb0209,
+ 0x10171e25, 0x2c333a41, 0x484f565d, 0x646b7279
+};
+
+#ifdef USE_AESNI_AVX
+extern void _gcry_sm4_aesni_avx_expand_key(const byte *key, u32 *rk_enc,
+ u32 *rk_dec, const u32 *fk,
+ const u32 *ck) ASM_FUNC_ABI;
+
+extern void _gcry_sm4_aesni_avx_ctr_enc(const u32 *rk_enc, byte *out,
+ const byte *in, byte *ctr) ASM_FUNC_ABI;
+
+extern void _gcry_sm4_aesni_avx_cbc_dec(const u32 *rk_dec, byte *out,
+ const byte *in, byte *iv) ASM_FUNC_ABI;
+
+extern void _gcry_sm4_aesni_avx_cfb_dec(const u32 *rk_enc, byte *out,
+ const byte *in, byte *iv) ASM_FUNC_ABI;
+
+extern void _gcry_sm4_aesni_avx_ocb_enc(const u32 *rk_enc,
+ unsigned char *out,
+ const unsigned char *in,
+ unsigned char *offset,
+ unsigned char *checksum,
+ const u64 Ls[8]) ASM_FUNC_ABI;
+
+extern void _gcry_sm4_aesni_avx_ocb_dec(const u32 *rk_dec,
+ unsigned char *out,
+ const unsigned char *in,
+ unsigned char *offset,
+ unsigned char *checksum,
+ const u64 Ls[8]) ASM_FUNC_ABI;
+
+extern void _gcry_sm4_aesni_avx_ocb_auth(const u32 *rk_enc,
+ const unsigned char *abuf,
+ unsigned char *offset,
+ unsigned char *checksum,
+ const u64 Ls[8]) ASM_FUNC_ABI;
+
+extern unsigned int
+_gcry_sm4_aesni_avx_crypt_blk1_8(const u32 *rk, byte *out, const byte *in,
+ unsigned int num_blks) ASM_FUNC_ABI;
+
+static inline unsigned int
+sm4_aesni_avx_crypt_blk1_8(const u32 *rk, byte *out, const byte *in,
+ unsigned int num_blks)
+{
+ return _gcry_sm4_aesni_avx_crypt_blk1_8(rk, out, in, num_blks);
+}
+
+#endif /* USE_AESNI_AVX */
+
+#ifdef USE_AESNI_AVX2
+extern void _gcry_sm4_aesni_avx2_ctr_enc(const u32 *rk_enc, byte *out,
+ const byte *in,
+ byte *ctr) ASM_FUNC_ABI;
+
+extern void _gcry_sm4_aesni_avx2_cbc_dec(const u32 *rk_dec, byte *out,
+ const byte *in,
+ byte *iv) ASM_FUNC_ABI;
+
+extern void _gcry_sm4_aesni_avx2_cfb_dec(const u32 *rk_enc, byte *out,
+ const byte *in,
+ byte *iv) ASM_FUNC_ABI;
+
+extern void _gcry_sm4_aesni_avx2_ocb_enc(const u32 *rk_enc,
+ unsigned char *out,
+ const unsigned char *in,
+ unsigned char *offset,
+ unsigned char *checksum,
+ const u64 Ls[16]) ASM_FUNC_ABI;
+
+extern void _gcry_sm4_aesni_avx2_ocb_dec(const u32 *rk_dec,
+ unsigned char *out,
+ const unsigned char *in,
+ unsigned char *offset,
+ unsigned char *checksum,
+ const u64 Ls[16]) ASM_FUNC_ABI;
+
+extern void _gcry_sm4_aesni_avx2_ocb_auth(const u32 *rk_enc,
+ const unsigned char *abuf,
+ unsigned char *offset,
+ unsigned char *checksum,
+ const u64 Ls[16]) ASM_FUNC_ABI;
+#endif /* USE_AESNI_AVX2 */
+
+static inline void prefetch_sbox_table(void)
+{
+ const volatile byte *vtab = (void *)&sbox_table;
+
+ /* Modify counters to trigger copy-on-write and unsharing if physical pages
+ * of look-up table are shared between processes. Modifying counters also
+ * causes checksums for pages to change and hint same-page merging algorithm
+ * that these pages are frequently changing. */
+ sbox_table.counter_head++;
+ sbox_table.counter_tail++;
+
+ /* Prefetch look-up table to cache. */
+ (void)vtab[0 * 32];
+ (void)vtab[1 * 32];
+ (void)vtab[2 * 32];
+ (void)vtab[3 * 32];
+ (void)vtab[4 * 32];
+ (void)vtab[5 * 32];
+ (void)vtab[6 * 32];
+ (void)vtab[7 * 32];
+ (void)vtab[8 * 32 - 1];
+}
+
+static inline u32 sm4_t_non_lin_sub(u32 x)
+{
+ u32 out;
+
+ out = (u32)sbox_table.S[(x >> 0) & 0xff] << 0;
+ out |= (u32)sbox_table.S[(x >> 8) & 0xff] << 8;
+ out |= (u32)sbox_table.S[(x >> 16) & 0xff] << 16;
+ out |= (u32)sbox_table.S[(x >> 24) & 0xff] << 24;
+
+ return out;
+}
+
+static inline u32 sm4_key_lin_sub(u32 x)
+{
+ return x ^ rol(x, 13) ^ rol(x, 23);
+}
+
+static inline u32 sm4_enc_lin_sub(u32 x)
+{
+ u32 xrol2 = rol(x, 2);
+ return x ^ xrol2 ^ rol(xrol2, 8) ^ rol(xrol2, 16) ^ rol(x, 24);
+}
+
+static inline u32 sm4_key_sub(u32 x)
+{
+ return sm4_key_lin_sub(sm4_t_non_lin_sub(x));
+}
+
+static inline u32 sm4_enc_sub(u32 x)
+{
+ return sm4_enc_lin_sub(sm4_t_non_lin_sub(x));
+}
+
+static inline u32
+sm4_round(const u32 x0, const u32 x1, const u32 x2, const u32 x3, const u32 rk)
+{
+ return x0 ^ sm4_enc_sub(x1 ^ x2 ^ x3 ^ rk);
+}
+
+static void
+sm4_expand_key (SM4_context *ctx, const byte *key)
+{
+ u32 rk[4];
+ int i;
+
+#ifdef USE_AESNI_AVX
+ if (ctx->use_aesni_avx)
+ {
+ _gcry_sm4_aesni_avx_expand_key (key, ctx->rkey_enc, ctx->rkey_dec,
+ fk, ck);
+ return;
+ }
+#endif
+
+ rk[0] = buf_get_be32(key + 4 * 0) ^ fk[0];
+ rk[1] = buf_get_be32(key + 4 * 1) ^ fk[1];
+ rk[2] = buf_get_be32(key + 4 * 2) ^ fk[2];
+ rk[3] = buf_get_be32(key + 4 * 3) ^ fk[3];
+
+ for (i = 0; i < 32; i += 4)
+ {
+ rk[0] = rk[0] ^ sm4_key_sub(rk[1] ^ rk[2] ^ rk[3] ^ ck[i + 0]);
+ rk[1] = rk[1] ^ sm4_key_sub(rk[2] ^ rk[3] ^ rk[0] ^ ck[i + 1]);
+ rk[2] = rk[2] ^ sm4_key_sub(rk[3] ^ rk[0] ^ rk[1] ^ ck[i + 2]);
+ rk[3] = rk[3] ^ sm4_key_sub(rk[0] ^ rk[1] ^ rk[2] ^ ck[i + 3]);
+ ctx->rkey_enc[i + 0] = rk[0];
+ ctx->rkey_enc[i + 1] = rk[1];
+ ctx->rkey_enc[i + 2] = rk[2];
+ ctx->rkey_enc[i + 3] = rk[3];
+ ctx->rkey_dec[31 - i - 0] = rk[0];
+ ctx->rkey_dec[31 - i - 1] = rk[1];
+ ctx->rkey_dec[31 - i - 2] = rk[2];
+ ctx->rkey_dec[31 - i - 3] = rk[3];
+ }
+
+ wipememory (rk, sizeof(rk));
+}
+
+static gcry_err_code_t
+sm4_setkey (void *context, const byte *key, const unsigned keylen,
+ cipher_bulk_ops_t *bulk_ops)
+{
+ SM4_context *ctx = context;
+ static int init = 0;
+ static const char *selftest_failed = NULL;
+ unsigned int hwf = _gcry_get_hw_features ();
+
+ (void)hwf;
+
+ if (!init)
+ {
+ init = 1;
+ selftest_failed = sm4_selftest();
+ if (selftest_failed)
+ log_error("%s\n", selftest_failed);
+ }
+ if (selftest_failed)
+ return GPG_ERR_SELFTEST_FAILED;
+
+ if (keylen != 16)
+ return GPG_ERR_INV_KEYLEN;
+
+#ifdef USE_AESNI_AVX
+ ctx->use_aesni_avx = (hwf & HWF_INTEL_AESNI) && (hwf & HWF_INTEL_AVX);
+#endif
+#ifdef USE_AESNI_AVX2
+ ctx->use_aesni_avx2 = (hwf & HWF_INTEL_AESNI) && (hwf & HWF_INTEL_AVX2);
+#endif
+
+ /* Setup bulk encryption routines. */
+ memset (bulk_ops, 0, sizeof(*bulk_ops));
+ bulk_ops->cbc_dec = _gcry_sm4_cbc_dec;
+ bulk_ops->cfb_dec = _gcry_sm4_cfb_dec;
+ bulk_ops->ctr_enc = _gcry_sm4_ctr_enc;
+ bulk_ops->ocb_crypt = _gcry_sm4_ocb_crypt;
+ bulk_ops->ocb_auth = _gcry_sm4_ocb_auth;
+
+ sm4_expand_key (ctx, key);
+ return 0;
+}
+
+static unsigned int
+sm4_do_crypt (const u32 *rk, byte *out, const byte *in)
+{
+ u32 x[4];
+ int i;
+
+ x[0] = buf_get_be32(in + 0 * 4);
+ x[1] = buf_get_be32(in + 1 * 4);
+ x[2] = buf_get_be32(in + 2 * 4);
+ x[3] = buf_get_be32(in + 3 * 4);
+
+ for (i = 0; i < 32; i += 4)
+ {
+ x[0] = sm4_round(x[0], x[1], x[2], x[3], rk[i + 0]);
+ x[1] = sm4_round(x[1], x[2], x[3], x[0], rk[i + 1]);
+ x[2] = sm4_round(x[2], x[3], x[0], x[1], rk[i + 2]);
+ x[3] = sm4_round(x[3], x[0], x[1], x[2], rk[i + 3]);
+ }
+
+ buf_put_be32(out + 0 * 4, x[3 - 0]);
+ buf_put_be32(out + 1 * 4, x[3 - 1]);
+ buf_put_be32(out + 2 * 4, x[3 - 2]);
+ buf_put_be32(out + 3 * 4, x[3 - 3]);
+
+ return /*burn_stack*/ 4*6+sizeof(void*)*4;
+}
+
+static unsigned int
+sm4_encrypt (void *context, byte *outbuf, const byte *inbuf)
+{
+ SM4_context *ctx = context;
+
+ prefetch_sbox_table ();
+
+ return sm4_do_crypt (ctx->rkey_enc, outbuf, inbuf);
+}
+
+static unsigned int
+sm4_decrypt (void *context, byte *outbuf, const byte *inbuf)
+{
+ SM4_context *ctx = context;
+
+ prefetch_sbox_table ();
+
+ return sm4_do_crypt (ctx->rkey_dec, outbuf, inbuf);
+}
+
+static unsigned int
+sm4_do_crypt_blks2 (const u32 *rk, byte *out, const byte *in)
+{
+ u32 x[4];
+ u32 y[4];
+ u32 k;
+ int i;
+
+ /* Encrypts/Decrypts two blocks for higher instruction level
+ * parallelism. */
+
+ x[0] = buf_get_be32(in + 0 * 4);
+ x[1] = buf_get_be32(in + 1 * 4);
+ x[2] = buf_get_be32(in + 2 * 4);
+ x[3] = buf_get_be32(in + 3 * 4);
+ y[0] = buf_get_be32(in + 4 * 4);
+ y[1] = buf_get_be32(in + 5 * 4);
+ y[2] = buf_get_be32(in + 6 * 4);
+ y[3] = buf_get_be32(in + 7 * 4);
+
+ for (i = 0; i < 32; i += 4)
+ {
+ k = rk[i + 0];
+ x[0] = sm4_round(x[0], x[1], x[2], x[3], k);
+ y[0] = sm4_round(y[0], y[1], y[2], y[3], k);
+ k = rk[i + 1];
+ x[1] = sm4_round(x[1], x[2], x[3], x[0], k);
+ y[1] = sm4_round(y[1], y[2], y[3], y[0], k);
+ k = rk[i + 2];
+ x[2] = sm4_round(x[2], x[3], x[0], x[1], k);
+ y[2] = sm4_round(y[2], y[3], y[0], y[1], k);
+ k = rk[i + 3];
+ x[3] = sm4_round(x[3], x[0], x[1], x[2], k);
+ y[3] = sm4_round(y[3], y[0], y[1], y[2], k);
+ }
+
+ buf_put_be32(out + 0 * 4, x[3 - 0]);
+ buf_put_be32(out + 1 * 4, x[3 - 1]);
+ buf_put_be32(out + 2 * 4, x[3 - 2]);
+ buf_put_be32(out + 3 * 4, x[3 - 3]);
+ buf_put_be32(out + 4 * 4, y[3 - 0]);
+ buf_put_be32(out + 5 * 4, y[3 - 1]);
+ buf_put_be32(out + 6 * 4, y[3 - 2]);
+ buf_put_be32(out + 7 * 4, y[3 - 3]);
+
+ return /*burn_stack*/ 4*10+sizeof(void*)*4;
+}
+
+static unsigned int
+sm4_crypt_blocks (const u32 *rk, byte *out, const byte *in,
+ unsigned int num_blks)
+{
+ unsigned int burn_depth = 0;
+ unsigned int nburn;
+
+ while (num_blks >= 2)
+ {
+ nburn = sm4_do_crypt_blks2 (rk, out, in);
+ burn_depth = nburn > burn_depth ? nburn : burn_depth;
+ out += 2 * 16;
+ in += 2 * 16;
+ num_blks -= 2;
+ }
+
+ while (num_blks)
+ {
+ nburn = sm4_do_crypt (rk, out, in);
+ burn_depth = nburn > burn_depth ? nburn : burn_depth;
+ out += 16;
+ in += 16;
+ num_blks--;
+ }
+
+ if (burn_depth)
+ burn_depth += sizeof(void *) * 5;
+ return burn_depth;
+}
+
+/* Bulk encryption of complete blocks in CTR mode. This function is only
+ intended for the bulk encryption feature of cipher.c. CTR is expected to be
+ of size 16. */
+static void
+_gcry_sm4_ctr_enc(void *context, unsigned char *ctr,
+ void *outbuf_arg, const void *inbuf_arg,
+ size_t nblocks)
+{
+ SM4_context *ctx = context;
+ byte *outbuf = outbuf_arg;
+ const byte *inbuf = inbuf_arg;
+ int burn_stack_depth = 0;
+
+#ifdef USE_AESNI_AVX2
+ if (ctx->use_aesni_avx2)
+ {
+ /* Process data in 16 block chunks. */
+ while (nblocks >= 16)
+ {
+ _gcry_sm4_aesni_avx2_ctr_enc(ctx->rkey_enc, outbuf, inbuf, ctr);
+
+ nblocks -= 16;
+ outbuf += 16 * 16;
+ inbuf += 16 * 16;
+ }
+ }
+#endif
+
+#ifdef USE_AESNI_AVX
+ if (ctx->use_aesni_avx)
+ {
+ /* Process data in 8 block chunks. */
+ while (nblocks >= 8)
+ {
+ _gcry_sm4_aesni_avx_ctr_enc(ctx->rkey_enc, outbuf, inbuf, ctr);
+
+ nblocks -= 8;
+ outbuf += 8 * 16;
+ inbuf += 8 * 16;
+ }
+ }
+#endif
+
+ /* Process remaining blocks. */
+ if (nblocks)
+ {
+ unsigned int (*crypt_blk1_8)(const u32 *rk, byte *out, const byte *in,
+ unsigned int num_blks);
+ byte tmpbuf[16 * 8];
+ unsigned int tmp_used = 16;
+
+ if (0)
+ ;
+#ifdef USE_AESNI_AVX
+ else if (ctx->use_aesni_avx)
+ {
+ crypt_blk1_8 = sm4_aesni_avx_crypt_blk1_8;
+ }
+#endif
+ else
+ {
+ prefetch_sbox_table ();
+ crypt_blk1_8 = sm4_crypt_blocks;
+ }
+
+ /* Process remaining blocks. */
+ while (nblocks)
+ {
+ size_t curr_blks = nblocks > 8 ? 8 : nblocks;
+ size_t i;
+
+ if (curr_blks * 16 > tmp_used)
+ tmp_used = curr_blks * 16;
+
+ cipher_block_cpy (tmpbuf + 0 * 16, ctr, 16);
+ for (i = 1; i < curr_blks; i++)
+ {
+ cipher_block_cpy (&tmpbuf[i * 16], ctr, 16);
+ cipher_block_add (&tmpbuf[i * 16], i, 16);
+ }
+ cipher_block_add (ctr, curr_blks, 16);
+
+ burn_stack_depth = crypt_blk1_8 (ctx->rkey_enc, tmpbuf, tmpbuf,
+ curr_blks);
+
+ for (i = 0; i < curr_blks; i++)
+ {
+ cipher_block_xor (outbuf, &tmpbuf[i * 16], inbuf, 16);
+ outbuf += 16;
+ inbuf += 16;
+ }
+
+ nblocks -= curr_blks;
+ }
+
+ wipememory(tmpbuf, tmp_used);
+ }
+
+ if (burn_stack_depth)
+ _gcry_burn_stack(burn_stack_depth);
+}
+
+/* Bulk decryption of complete blocks in CBC mode. This function is only
+ intended for the bulk encryption feature of cipher.c. */
+static void
+_gcry_sm4_cbc_dec(void *context, unsigned char *iv,
+ void *outbuf_arg, const void *inbuf_arg,
+ size_t nblocks)
+{
+ SM4_context *ctx = context;
+ unsigned char *outbuf = outbuf_arg;
+ const unsigned char *inbuf = inbuf_arg;
+ int burn_stack_depth = 0;
+
+#ifdef USE_AESNI_AVX2
+ if (ctx->use_aesni_avx2)
+ {
+ /* Process data in 16 block chunks. */
+ while (nblocks >= 16)
+ {
+ _gcry_sm4_aesni_avx2_cbc_dec(ctx->rkey_dec, outbuf, inbuf, iv);
+
+ nblocks -= 16;
+ outbuf += 16 * 16;
+ inbuf += 16 * 16;
+ }
+ }
+#endif
+
+#ifdef USE_AESNI_AVX
+ if (ctx->use_aesni_avx)
+ {
+ /* Process data in 8 block chunks. */
+ while (nblocks >= 8)
+ {
+ _gcry_sm4_aesni_avx_cbc_dec(ctx->rkey_dec, outbuf, inbuf, iv);
+
+ nblocks -= 8;
+ outbuf += 8 * 16;
+ inbuf += 8 * 16;
+ }
+ }
+#endif
+
+ /* Process remaining blocks. */
+ if (nblocks)
+ {
+ unsigned int (*crypt_blk1_8)(const u32 *rk, byte *out, const byte *in,
+ unsigned int num_blks);
+ unsigned char savebuf[16 * 8];
+ unsigned int tmp_used = 16;
+
+ if (0)
+ ;
+#ifdef USE_AESNI_AVX
+ else if (ctx->use_aesni_avx)
+ {
+ crypt_blk1_8 = sm4_aesni_avx_crypt_blk1_8;
+ }
+#endif
+ else
+ {
+ prefetch_sbox_table ();
+ crypt_blk1_8 = sm4_crypt_blocks;
+ }
+
+ /* Process remaining blocks. */
+ while (nblocks)
+ {
+ size_t curr_blks = nblocks > 8 ? 8 : nblocks;
+ size_t i;
+
+ if (curr_blks * 16 > tmp_used)
+ tmp_used = curr_blks * 16;
+
+ burn_stack_depth = crypt_blk1_8 (ctx->rkey_dec, savebuf, inbuf,
+ curr_blks);
+
+ for (i = 0; i < curr_blks; i++)
+ {
+ cipher_block_xor_n_copy_2(outbuf, &savebuf[i * 16], iv, inbuf,
+ 16);
+ outbuf += 16;
+ inbuf += 16;
+ }
+
+ nblocks -= curr_blks;
+ }
+
+ wipememory(savebuf, tmp_used);
+ }
+
+ if (burn_stack_depth)
+ _gcry_burn_stack(burn_stack_depth);
+}
+
+/* Bulk decryption of complete blocks in CFB mode. This function is only
+ intended for the bulk encryption feature of cipher.c. */
+static void
+_gcry_sm4_cfb_dec(void *context, unsigned char *iv,
+ void *outbuf_arg, const void *inbuf_arg,
+ size_t nblocks)
+{
+ SM4_context *ctx = context;
+ unsigned char *outbuf = outbuf_arg;
+ const unsigned char *inbuf = inbuf_arg;
+ int burn_stack_depth = 0;
+
+#ifdef USE_AESNI_AVX2
+ if (ctx->use_aesni_avx2)
+ {
+ /* Process data in 16 block chunks. */
+ while (nblocks >= 16)
+ {
+ _gcry_sm4_aesni_avx2_cfb_dec(ctx->rkey_enc, outbuf, inbuf, iv);
+
+ nblocks -= 16;
+ outbuf += 16 * 16;
+ inbuf += 16 * 16;
+ }
+ }
+#endif
+
+#ifdef USE_AESNI_AVX
+ if (ctx->use_aesni_avx)
+ {
+ /* Process data in 8 block chunks. */
+ while (nblocks >= 8)
+ {
+ _gcry_sm4_aesni_avx_cfb_dec(ctx->rkey_enc, outbuf, inbuf, iv);
+
+ nblocks -= 8;
+ outbuf += 8 * 16;
+ inbuf += 8 * 16;
+ }
+ }
+#endif
+
+ /* Process remaining blocks. */
+ if (nblocks)
+ {
+ unsigned int (*crypt_blk1_8)(const u32 *rk, byte *out, const byte *in,
+ unsigned int num_blks);
+ unsigned char ivbuf[16 * 8];
+ unsigned int tmp_used = 16;
+
+ if (0)
+ ;
+#ifdef USE_AESNI_AVX
+ else if (ctx->use_aesni_avx)
+ {
+ crypt_blk1_8 = sm4_aesni_avx_crypt_blk1_8;
+ }
+#endif
+ else
+ {
+ prefetch_sbox_table ();
+ crypt_blk1_8 = sm4_crypt_blocks;
+ }
+
+ /* Process remaining blocks. */
+ while (nblocks)
+ {
+ size_t curr_blks = nblocks > 8 ? 8 : nblocks;
+ size_t i;
+
+ if (curr_blks * 16 > tmp_used)
+ tmp_used = curr_blks * 16;
+
+ cipher_block_cpy (&ivbuf[0 * 16], iv, 16);
+ for (i = 1; i < curr_blks; i++)
+ cipher_block_cpy (&ivbuf[i * 16], &inbuf[(i - 1) * 16], 16);
+ cipher_block_cpy (iv, &inbuf[(i - 1) * 16], 16);
+
+ burn_stack_depth = crypt_blk1_8 (ctx->rkey_enc, ivbuf, ivbuf,
+ curr_blks);
+
+ for (i = 0; i < curr_blks; i++)
+ {
+ cipher_block_xor (outbuf, inbuf, &ivbuf[i * 16], 16);
+ outbuf += 16;
+ inbuf += 16;
+ }
+
+ nblocks -= curr_blks;
+ }
+
+ wipememory(ivbuf, tmp_used);
+ }
+
+ if (burn_stack_depth)
+ _gcry_burn_stack(burn_stack_depth);
+}
+
+/* Bulk encryption/decryption of complete blocks in OCB mode. */
+static size_t
+_gcry_sm4_ocb_crypt (gcry_cipher_hd_t c, void *outbuf_arg,
+ const void *inbuf_arg, size_t nblocks, int encrypt)
+{
+ SM4_context *ctx = (void *)&c->context.c;
+ unsigned char *outbuf = outbuf_arg;
+ const unsigned char *inbuf = inbuf_arg;
+ u64 blkn = c->u_mode.ocb.data_nblocks;
+ int burn_stack_depth = 0;
+
+#ifdef USE_AESNI_AVX2
+ if (ctx->use_aesni_avx2)
+ {
+ u64 Ls[16];
+ unsigned int n = 16 - (blkn % 16);
+ u64 *l;
+ int i;
+
+ if (nblocks >= 16)
+ {
+ for (i = 0; i < 16; i += 8)
+ {
+ /* Use u64 to store pointers for x32 support (assembly function
+ * assumes 64-bit pointers). */
+ Ls[(i + 0 + n) % 16] = (uintptr_t)(void *)c->u_mode.ocb.L[0];
+ Ls[(i + 1 + n) % 16] = (uintptr_t)(void *)c->u_mode.ocb.L[1];
+ Ls[(i + 2 + n) % 16] = (uintptr_t)(void *)c->u_mode.ocb.L[0];
+ Ls[(i + 3 + n) % 16] = (uintptr_t)(void *)c->u_mode.ocb.L[2];
+ Ls[(i + 4 + n) % 16] = (uintptr_t)(void *)c->u_mode.ocb.L[0];
+ Ls[(i + 5 + n) % 16] = (uintptr_t)(void *)c->u_mode.ocb.L[1];
+ Ls[(i + 6 + n) % 16] = (uintptr_t)(void *)c->u_mode.ocb.L[0];
+ }
+
+ Ls[(7 + n) % 16] = (uintptr_t)(void *)c->u_mode.ocb.L[3];
+ l = &Ls[(15 + n) % 16];
+
+ /* Process data in 16 block chunks. */
+ while (nblocks >= 16)
+ {
+ blkn += 16;
+ *l = (uintptr_t)(void *)ocb_get_l(c, blkn - blkn % 16);
+
+ if (encrypt)
+ _gcry_sm4_aesni_avx2_ocb_enc(ctx->rkey_enc, outbuf, inbuf,
+ c->u_iv.iv, c->u_ctr.ctr, Ls);
+ else
+ _gcry_sm4_aesni_avx2_ocb_dec(ctx->rkey_dec, outbuf, inbuf,
+ c->u_iv.iv, c->u_ctr.ctr, Ls);
+
+ nblocks -= 16;
+ outbuf += 16 * 16;
+ inbuf += 16 * 16;
+ }
+ }
+ }
+#endif
+
+#ifdef USE_AESNI_AVX
+ if (ctx->use_aesni_avx)
+ {
+ u64 Ls[8];
+ unsigned int n = 8 - (blkn % 8);
+ u64 *l;
+
+ if (nblocks >= 8)
+ {
+ /* Use u64 to store pointers for x32 support (assembly function
+ * assumes 64-bit pointers). */
+ Ls[(0 + n) % 8] = (uintptr_t)(void *)c->u_mode.ocb.L[0];
+ Ls[(1 + n) % 8] = (uintptr_t)(void *)c->u_mode.ocb.L[1];
+ Ls[(2 + n) % 8] = (uintptr_t)(void *)c->u_mode.ocb.L[0];
+ Ls[(3 + n) % 8] = (uintptr_t)(void *)c->u_mode.ocb.L[2];
+ Ls[(4 + n) % 8] = (uintptr_t)(void *)c->u_mode.ocb.L[0];
+ Ls[(5 + n) % 8] = (uintptr_t)(void *)c->u_mode.ocb.L[1];
+ Ls[(6 + n) % 8] = (uintptr_t)(void *)c->u_mode.ocb.L[0];
+ Ls[(7 + n) % 8] = (uintptr_t)(void *)c->u_mode.ocb.L[3];
+ l = &Ls[(7 + n) % 8];
+
+ /* Process data in 8 block chunks. */
+ while (nblocks >= 8)
+ {
+ blkn += 8;
+ *l = (uintptr_t)(void *)ocb_get_l(c, blkn - blkn % 8);
+
+ if (encrypt)
+ _gcry_sm4_aesni_avx_ocb_enc(ctx->rkey_enc, outbuf, inbuf,
+ c->u_iv.iv, c->u_ctr.ctr, Ls);
+ else
+ _gcry_sm4_aesni_avx_ocb_dec(ctx->rkey_dec, outbuf, inbuf,
+ c->u_iv.iv, c->u_ctr.ctr, Ls);
+
+ nblocks -= 8;
+ outbuf += 8 * 16;
+ inbuf += 8 * 16;
+ }
+ }
+ }
+#endif
+
+ if (nblocks)
+ {
+ unsigned int (*crypt_blk1_8)(const u32 *rk, byte *out, const byte *in,
+ unsigned int num_blks);
+ const u32 *rk = encrypt ? ctx->rkey_enc : ctx->rkey_dec;
+ unsigned char tmpbuf[16 * 8];
+ unsigned int tmp_used = 16;
+
+ if (0)
+ ;
+#ifdef USE_AESNI_AVX
+ else if (ctx->use_aesni_avx)
+ {
+ crypt_blk1_8 = sm4_aesni_avx_crypt_blk1_8;
+ }
+#endif
+ else
+ {
+ prefetch_sbox_table ();
+ crypt_blk1_8 = sm4_crypt_blocks;
+ }
+
+ while (nblocks)
+ {
+ size_t curr_blks = nblocks > 8 ? 8 : nblocks;
+ size_t i;
+
+ if (curr_blks * 16 > tmp_used)
+ tmp_used = curr_blks * 16;
+
+ for (i = 0; i < curr_blks; i++)
+ {
+ const unsigned char *l = ocb_get_l(c, ++blkn);
+
+ /* Checksum_i = Checksum_{i-1} xor P_i */
+ if (encrypt)
+ cipher_block_xor_1(c->u_ctr.ctr, &inbuf[i * 16], 16);
+
+ /* Offset_i = Offset_{i-1} xor L_{ntz(i)} */
+ cipher_block_xor_2dst (&tmpbuf[i * 16], c->u_iv.iv, l, 16);
+ cipher_block_xor (&outbuf[i * 16], &inbuf[i * 16],
+ c->u_iv.iv, 16);
+ }
+
+ /* C_i = Offset_i xor ENCIPHER(K, P_i xor Offset_i) */
+ crypt_blk1_8 (rk, outbuf, outbuf, curr_blks);
+
+ for (i = 0; i < curr_blks; i++)
+ {
+ cipher_block_xor_1 (&outbuf[i * 16], &tmpbuf[i * 16], 16);
+
+ /* Checksum_i = Checksum_{i-1} xor P_i */
+ if (!encrypt)
+ cipher_block_xor_1(c->u_ctr.ctr, &outbuf[i * 16], 16);
+ }
+
+ outbuf += curr_blks * 16;
+ inbuf += curr_blks * 16;
+ nblocks -= curr_blks;
+ }
+
+ wipememory(tmpbuf, tmp_used);
+ }
+
+ c->u_mode.ocb.data_nblocks = blkn;
+
+ if (burn_stack_depth)
+ _gcry_burn_stack(burn_stack_depth);
+
+ return 0;
+}
+
+/* Bulk authentication of complete blocks in OCB mode. */
+static size_t
+_gcry_sm4_ocb_auth (gcry_cipher_hd_t c, const void *abuf_arg, size_t nblocks)
+{
+ SM4_context *ctx = (void *)&c->context.c;
+ const unsigned char *abuf = abuf_arg;
+ u64 blkn = c->u_mode.ocb.aad_nblocks;
+
+#ifdef USE_AESNI_AVX2
+ if (ctx->use_aesni_avx2)
+ {
+ u64 Ls[16];
+ unsigned int n = 16 - (blkn % 16);
+ u64 *l;
+ int i;
+
+ if (nblocks >= 16)
+ {
+ for (i = 0; i < 16; i += 8)
+ {
+ /* Use u64 to store pointers for x32 support (assembly function
+ * assumes 64-bit pointers). */
+ Ls[(i + 0 + n) % 16] = (uintptr_t)(void *)c->u_mode.ocb.L[0];
+ Ls[(i + 1 + n) % 16] = (uintptr_t)(void *)c->u_mode.ocb.L[1];
+ Ls[(i + 2 + n) % 16] = (uintptr_t)(void *)c->u_mode.ocb.L[0];
+ Ls[(i + 3 + n) % 16] = (uintptr_t)(void *)c->u_mode.ocb.L[2];
+ Ls[(i + 4 + n) % 16] = (uintptr_t)(void *)c->u_mode.ocb.L[0];
+ Ls[(i + 5 + n) % 16] = (uintptr_t)(void *)c->u_mode.ocb.L[1];
+ Ls[(i + 6 + n) % 16] = (uintptr_t)(void *)c->u_mode.ocb.L[0];
+ }
+
+ Ls[(7 + n) % 16] = (uintptr_t)(void *)c->u_mode.ocb.L[3];
+ l = &Ls[(15 + n) % 16];
+
+ /* Process data in 16 block chunks. */
+ while (nblocks >= 16)
+ {
+ blkn += 16;
+ *l = (uintptr_t)(void *)ocb_get_l(c, blkn - blkn % 16);
+
+ _gcry_sm4_aesni_avx2_ocb_auth(ctx->rkey_enc, abuf,
+ c->u_mode.ocb.aad_offset,
+ c->u_mode.ocb.aad_sum, Ls);
+
+ nblocks -= 16;
+ abuf += 16 * 16;
+ }
+ }
+ }
+#endif
+
+#ifdef USE_AESNI_AVX
+ if (ctx->use_aesni_avx)
+ {
+ u64 Ls[8];
+ unsigned int n = 8 - (blkn % 8);
+ u64 *l;
+
+ if (nblocks >= 8)
+ {
+ /* Use u64 to store pointers for x32 support (assembly function
+ * assumes 64-bit pointers). */
+ Ls[(0 + n) % 8] = (uintptr_t)(void *)c->u_mode.ocb.L[0];
+ Ls[(1 + n) % 8] = (uintptr_t)(void *)c->u_mode.ocb.L[1];
+ Ls[(2 + n) % 8] = (uintptr_t)(void *)c->u_mode.ocb.L[0];
+ Ls[(3 + n) % 8] = (uintptr_t)(void *)c->u_mode.ocb.L[2];
+ Ls[(4 + n) % 8] = (uintptr_t)(void *)c->u_mode.ocb.L[0];
+ Ls[(5 + n) % 8] = (uintptr_t)(void *)c->u_mode.ocb.L[1];
+ Ls[(6 + n) % 8] = (uintptr_t)(void *)c->u_mode.ocb.L[0];
+ Ls[(7 + n) % 8] = (uintptr_t)(void *)c->u_mode.ocb.L[3];
+ l = &Ls[(7 + n) % 8];
+
+ /* Process data in 8 block chunks. */
+ while (nblocks >= 8)
+ {
+ blkn += 8;
+ *l = (uintptr_t)(void *)ocb_get_l(c, blkn - blkn % 8);
+
+ _gcry_sm4_aesni_avx_ocb_auth(ctx->rkey_enc, abuf,
+ c->u_mode.ocb.aad_offset,
+ c->u_mode.ocb.aad_sum, Ls);
+
+ nblocks -= 8;
+ abuf += 8 * 16;
+ }
+ }
+ }
+#endif
+
+ if (nblocks)
+ {
+ unsigned int (*crypt_blk1_8)(const u32 *rk, byte *out, const byte *in,
+ unsigned int num_blks);
+ unsigned char tmpbuf[16 * 8];
+ unsigned int tmp_used = 16;
+
+ if (0)
+ ;
+#ifdef USE_AESNI_AVX
+ else if (ctx->use_aesni_avx)
+ {
+ crypt_blk1_8 = sm4_aesni_avx_crypt_blk1_8;
+ }
+#endif
+ else
+ {
+ prefetch_sbox_table ();
+ crypt_blk1_8 = sm4_crypt_blocks;
+ }
+
+ while (nblocks)
+ {
+ size_t curr_blks = nblocks > 8 ? 8 : nblocks;
+ size_t i;
+
+ if (curr_blks * 16 > tmp_used)
+ tmp_used = curr_blks * 16;
+
+ for (i = 0; i < curr_blks; i++)
+ {
+ const unsigned char *l = ocb_get_l(c, ++blkn);
+
+ /* Offset_i = Offset_{i-1} xor L_{ntz(i)} */
+ cipher_block_xor_2dst (&tmpbuf[i * 16],
+ c->u_mode.ocb.aad_offset, l, 16);
+ cipher_block_xor_1 (&tmpbuf[i * 16], &abuf[i * 16], 16);
+ }
+
+ /* C_i = Offset_i xor ENCIPHER(K, P_i xor Offset_i) */
+ crypt_blk1_8 (ctx->rkey_enc, tmpbuf, tmpbuf, curr_blks);
+
+ for (i = 0; i < curr_blks; i++)
+ {
+ cipher_block_xor_1 (c->u_mode.ocb.aad_sum, &tmpbuf[i * 16], 16);
+ }
+
+ abuf += curr_blks * 16;
+ nblocks -= curr_blks;
+ }
+
+ wipememory(tmpbuf, tmp_used);
+ }
+
+ c->u_mode.ocb.aad_nblocks = blkn;
+
+ return 0;
+}
+
+/* Run the self-tests for SM4-CTR, tests IV increment of bulk CTR
+ encryption. Returns NULL on success. */
+static const char*
+selftest_ctr_128 (void)
+{
+ const int nblocks = 16 - 1;
+ const int blocksize = 16;
+ const int context_size = sizeof(SM4_context);
+
+ return _gcry_selftest_helper_ctr("SM4", &sm4_setkey,
+ &sm4_encrypt, nblocks, blocksize, context_size);
+}
+
+/* Run the self-tests for SM4-CBC, tests bulk CBC decryption.
+ Returns NULL on success. */
+static const char*
+selftest_cbc_128 (void)
+{
+ const int nblocks = 16 - 1;
+ const int blocksize = 16;
+ const int context_size = sizeof(SM4_context);
+
+ return _gcry_selftest_helper_cbc("SM4", &sm4_setkey,
+ &sm4_encrypt, nblocks, blocksize, context_size);
+}
+
+/* Run the self-tests for SM4-CFB, tests bulk CFB decryption.
+ Returns NULL on success. */
+static const char*
+selftest_cfb_128 (void)
+{
+ const int nblocks = 16 - 1;
+ const int blocksize = 16;
+ const int context_size = sizeof(SM4_context);
+
+ return _gcry_selftest_helper_cfb("SM4", &sm4_setkey,
+ &sm4_encrypt, nblocks, blocksize, context_size);
+}
+
+static const char *
+sm4_selftest (void)
+{
+ SM4_context ctx;
+ byte scratch[16];
+ const char *r;
+
+ static const byte plaintext[16] = {
+ 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF,
+ 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10,
+ };
+ static const byte key[16] = {
+ 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF,
+ 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10,
+ };
+ static const byte ciphertext[16] = {
+ 0x68, 0x1E, 0xDF, 0x34, 0xD2, 0x06, 0x96, 0x5E,
+ 0x86, 0xB3, 0xE9, 0x4F, 0x53, 0x6E, 0x42, 0x46
+ };
+
+ memset (&ctx, 0, sizeof(ctx));
+
+ sm4_expand_key (&ctx, key);
+ sm4_encrypt (&ctx, scratch, plaintext);
+ if (memcmp (scratch, ciphertext, sizeof (ciphertext)))
+ return "SM4 test encryption failed.";
+ sm4_decrypt (&ctx, scratch, scratch);
+ if (memcmp (scratch, plaintext, sizeof (plaintext)))
+ return "SM4 test decryption failed.";
+
+ if ( (r = selftest_ctr_128 ()) )
+ return r;
+
+ if ( (r = selftest_cbc_128 ()) )
+ return r;
+
+ if ( (r = selftest_cfb_128 ()) )
+ return r;
+
+ return NULL;
+}
+
+static gpg_err_code_t
+run_selftests (int algo, int extended, selftest_report_func_t report)
+{
+ const char *what;
+ const char *errtxt;
+
+ (void)extended;
+
+ if (algo != GCRY_CIPHER_SM4)
+ return GPG_ERR_CIPHER_ALGO;
+
+ what = "selftest";
+ errtxt = sm4_selftest ();
+ if (errtxt)
+ goto failed;
+
+ return 0;
+
+ failed:
+ if (report)
+ report ("cipher", GCRY_CIPHER_SM4, what, errtxt);
+ return GPG_ERR_SELFTEST_FAILED;
+}
+
+
+static gcry_cipher_oid_spec_t sm4_oids[] =
+ {
+ { "1.2.156.10197.1.104.1", GCRY_CIPHER_MODE_ECB },
+ { "1.2.156.10197.1.104.2", GCRY_CIPHER_MODE_CBC },
+ { "1.2.156.10197.1.104.3", GCRY_CIPHER_MODE_OFB },
+ { "1.2.156.10197.1.104.4", GCRY_CIPHER_MODE_CFB },
+ { "1.2.156.10197.1.104.7", GCRY_CIPHER_MODE_CTR },
+ { NULL }
+ };
+
+gcry_cipher_spec_t _gcry_cipher_spec_sm4 =
+ {
+ GCRY_CIPHER_SM4, {0, 0},
+ "SM4", NULL, sm4_oids, 16, 128,
+ sizeof (SM4_context),
+ sm4_setkey, sm4_encrypt, sm4_decrypt,
+ NULL, NULL,
+ run_selftests
+ };
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-11 13:40:33 +0000