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-rw-r--r--src/aes192.c134
1 files changed, 134 insertions, 0 deletions
diff --git a/src/aes192.c b/src/aes192.c
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index 0000000..2d1d6e5
--- /dev/null
+++ b/src/aes192.c
@@ -0,0 +1,134 @@
+/**
+ * \file
+ * \author Egor Tensin <Egor.Tensin@gmail.com>
+ * \date 2015
+ * \copyright This file is licensed under the terms of the MIT License.
+ * See LICENSE.txt for details.
+ */
+
+#include <aesni/all.h>
+
+#include <emmintrin.h>
+#include <wmmintrin.h>
+
+AesBlock128 __fastcall raw_aes192ecb_encrypt(
+ AesBlock128 plain,
+ Aes192KeySchedule* key_schedule)
+{
+ plain = _mm_xor_si128(plain, key_schedule->keys[0]);
+ plain = _mm_aesenc_si128(plain, key_schedule->keys[1]);
+ plain = _mm_aesenc_si128(plain, key_schedule->keys[2]);
+ plain = _mm_aesenc_si128(plain, key_schedule->keys[3]);
+ plain = _mm_aesenc_si128(plain, key_schedule->keys[4]);
+ plain = _mm_aesenc_si128(plain, key_schedule->keys[5]);
+ plain = _mm_aesenc_si128(plain, key_schedule->keys[6]);
+ plain = _mm_aesenc_si128(plain, key_schedule->keys[7]);
+ plain = _mm_aesenc_si128(plain, key_schedule->keys[8]);
+ plain = _mm_aesenc_si128(plain, key_schedule->keys[9]);
+ plain = _mm_aesenc_si128(plain, key_schedule->keys[10]);
+ plain = _mm_aesenc_si128(plain, key_schedule->keys[11]);
+ return _mm_aesenclast_si128(plain, key_schedule->keys[12]);
+}
+
+AesBlock128 __fastcall raw_aes192ecb_decrypt(
+ AesBlock128 cipher,
+ Aes192KeySchedule* inverted_schedule)
+{
+ cipher = _mm_xor_si128(cipher, inverted_schedule->keys[0]);
+ cipher = _mm_aesdec_si128(cipher, inverted_schedule->keys[1]);
+ cipher = _mm_aesdec_si128(cipher, inverted_schedule->keys[2]);
+ cipher = _mm_aesdec_si128(cipher, inverted_schedule->keys[3]);
+ cipher = _mm_aesdec_si128(cipher, inverted_schedule->keys[4]);
+ cipher = _mm_aesdec_si128(cipher, inverted_schedule->keys[5]);
+ cipher = _mm_aesdec_si128(cipher, inverted_schedule->keys[6]);
+ cipher = _mm_aesdec_si128(cipher, inverted_schedule->keys[7]);
+ cipher = _mm_aesdec_si128(cipher, inverted_schedule->keys[8]);
+ cipher = _mm_aesdec_si128(cipher, inverted_schedule->keys[9]);
+ cipher = _mm_aesdec_si128(cipher, inverted_schedule->keys[10]);
+ cipher = _mm_aesdec_si128(cipher, inverted_schedule->keys[11]);
+ return _mm_aesdeclast_si128(cipher, inverted_schedule->keys[12]);
+}
+
+static void __fastcall aes192_keygen_assist(
+ AesBlock128* prev_lo,
+ AesBlock128* prev_hi,
+ AesBlock128 hwgen)
+{
+ AesBlock128 tmp = *prev_lo;
+
+ tmp = _mm_slli_si128(tmp, 4);
+ *prev_lo = _mm_xor_si128(*prev_lo, tmp);
+ tmp = _mm_slli_si128(tmp, 4);
+ *prev_lo = _mm_xor_si128(*prev_lo, tmp);
+ tmp = _mm_slli_si128(tmp, 4);
+ *prev_lo = _mm_xor_si128(*prev_lo, tmp);
+
+ hwgen = _mm_shuffle_epi32(hwgen, 0x55);
+ *prev_lo = _mm_xor_si128(*prev_lo, hwgen);
+
+ tmp = _mm_shuffle_epi32(*prev_hi, 0xf3);
+ *prev_hi = _mm_xor_si128(*prev_hi, tmp);
+
+ tmp = _mm_shuffle_epi32(*prev_lo, 0xff);
+ tmp = _mm_srli_si128(tmp, 8);
+ *prev_hi = _mm_xor_si128(*prev_hi, tmp);
+}
+
+void __fastcall raw_aes192_expand_key_schedule(
+ AesBlock128 key_lo,
+ AesBlock128 key_hi,
+ Aes192KeySchedule* key_schedule)
+{
+ key_schedule->keys[0] = key_lo;
+ key_schedule->keys[1] = key_hi;
+
+ aes192_keygen_assist(&key_lo, &key_hi, _mm_aeskeygenassist_si128(key_hi, 0x01));
+ key_schedule->keys[1] = _mm_castpd_si128(_mm_shuffle_pd(_mm_castsi128_pd(key_schedule->keys[1]), _mm_castsi128_pd(key_lo), 0));
+ key_schedule->keys[2] = _mm_castpd_si128(_mm_shuffle_pd(_mm_castsi128_pd(key_lo), _mm_castsi128_pd(key_hi), 1));
+
+ aes192_keygen_assist(&key_lo, &key_hi, _mm_aeskeygenassist_si128(key_hi, 0x02));
+ key_schedule->keys[3] = key_lo;
+ key_schedule->keys[4] = key_hi;
+
+ aes192_keygen_assist(&key_lo, &key_hi, _mm_aeskeygenassist_si128(key_hi, 0x04));
+ key_schedule->keys[4] = _mm_castpd_si128(_mm_shuffle_pd(_mm_castsi128_pd(key_schedule->keys[4]), _mm_castsi128_pd(key_lo), 0));
+ key_schedule->keys[5] = _mm_castpd_si128(_mm_shuffle_pd(_mm_castsi128_pd(key_lo), _mm_castsi128_pd(key_hi), 1));
+
+ aes192_keygen_assist(&key_lo, &key_hi, _mm_aeskeygenassist_si128(key_hi, 0x08));
+ key_schedule->keys[6] = key_lo;
+ key_schedule->keys[7] = key_hi;
+
+ aes192_keygen_assist(&key_lo, &key_hi, _mm_aeskeygenassist_si128(key_hi, 0x10));
+ key_schedule->keys[7] = _mm_castpd_si128(_mm_shuffle_pd(_mm_castsi128_pd(key_schedule->keys[7]), _mm_castsi128_pd(key_lo), 0));
+ key_schedule->keys[8] = _mm_castpd_si128(_mm_shuffle_pd(_mm_castsi128_pd(key_lo), _mm_castsi128_pd(key_hi), 1));
+
+ aes192_keygen_assist(&key_lo, &key_hi, _mm_aeskeygenassist_si128(key_hi, 0x20));
+ key_schedule->keys[9] = key_lo;
+ key_schedule->keys[10] = key_hi;
+
+ aes192_keygen_assist(&key_lo, &key_hi, _mm_aeskeygenassist_si128(key_hi, 0x40));
+ key_schedule->keys[10] = _mm_castpd_si128(_mm_shuffle_pd(_mm_castsi128_pd(key_schedule->keys[10]), _mm_castsi128_pd(key_lo), 0));
+ key_schedule->keys[11] = _mm_castpd_si128(_mm_shuffle_pd(_mm_castsi128_pd(key_lo), _mm_castsi128_pd(key_hi), 1));
+
+ aes192_keygen_assist(&key_lo, &key_hi, _mm_aeskeygenassist_si128(key_hi, 0x80));
+ key_schedule->keys[12] = key_lo;
+}
+
+void __fastcall raw_aes192_invert_key_schedule(
+ Aes192KeySchedule* key_schedule,
+ Aes192KeySchedule* inverted_schedule)
+{
+ inverted_schedule->keys[0] = key_schedule->keys[12];
+ inverted_schedule->keys[1] = _mm_aesimc_si128(key_schedule->keys[11]);
+ inverted_schedule->keys[2] = _mm_aesimc_si128(key_schedule->keys[10]);
+ inverted_schedule->keys[3] = _mm_aesimc_si128(key_schedule->keys[9]);
+ inverted_schedule->keys[4] = _mm_aesimc_si128(key_schedule->keys[8]);
+ inverted_schedule->keys[5] = _mm_aesimc_si128(key_schedule->keys[7]);
+ inverted_schedule->keys[6] = _mm_aesimc_si128(key_schedule->keys[6]);
+ inverted_schedule->keys[7] = _mm_aesimc_si128(key_schedule->keys[5]);
+ inverted_schedule->keys[8] = _mm_aesimc_si128(key_schedule->keys[4]);
+ inverted_schedule->keys[9] = _mm_aesimc_si128(key_schedule->keys[3]);
+ inverted_schedule->keys[10] = _mm_aesimc_si128(key_schedule->keys[2]);
+ inverted_schedule->keys[11] = _mm_aesimc_si128(key_schedule->keys[1]);
+ inverted_schedule->keys[12] = key_schedule->keys[0];
+}