/src/botan/src/lib/hash/sha2_32/sha2_32_bmi2/sha2_32_bmi2.cpp

Source
/*
* (C) 2018 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/internal/sha2_32.h>
#include <botan/internal/loadstor.h>
#include <botan/internal/rotate.h>
#include <botan/internal/bit_ops.h>

namespace Botan {

/*
Your eyes do not decieve you; this is currently just a copy of the
baseline SHA-256 implementation. Because we compile it with BMI2
flags, GCC and Clang use the BMI2 instructions without further help.

Likely instruction scheduling could be improved by using inline asm.
*/

#define SHA2_32_F(A, B, C, D, E, F, G, H, M1, M2, M3, M4, magic) do {   \
   uint32_t A_rho = rotr<2>(A) ^ rotr<13>(A) ^ rotr<22>(A);             \
   uint32_t E_rho = rotr<6>(E) ^ rotr<11>(E) ^ rotr<25>(E);             \
   uint32_t M2_sigma = rotr<17>(M2) ^ rotr<19>(M2) ^ (M2 >> 10);        \
   uint32_t M4_sigma = rotr<7>(M4) ^ rotr<18>(M4) ^ (M4 >> 3);          \
   H += magic + E_rho + choose(E, F, G) + M1;                           \
   D += H;                                                              \
   H += A_rho + majority(A, B, C);                                      \
   M1 += M2_sigma + M3 + M4_sigma;                                      \
   } while(0);

void SHA_256::compress_digest_x86_bmi2(secure_vector<uint32_t>& digest,
                                       const uint8_t input[],
                                       size_t blocks)
   {
   uint32_t A = digest[0], B = digest[1], C = digest[2],
            D = digest[3], E = digest[4], F = digest[5],
            G = digest[6], H = digest[7];

   for(size_t i = 0; i != blocks; ++i)
      {
      uint32_t W00 = load_be<uint32_t>(input,  0);
      uint32_t W01 = load_be<uint32_t>(input,  1);
      uint32_t W02 = load_be<uint32_t>(input,  2);
      uint32_t W03 = load_be<uint32_t>(input,  3);
      uint32_t W04 = load_be<uint32_t>(input,  4);
      uint32_t W05 = load_be<uint32_t>(input,  5);
      uint32_t W06 = load_be<uint32_t>(input,  6);
      uint32_t W07 = load_be<uint32_t>(input,  7);
      uint32_t W08 = load_be<uint32_t>(input,  8);
      uint32_t W09 = load_be<uint32_t>(input,  9);
      uint32_t W10 = load_be<uint32_t>(input, 10);
      uint32_t W11 = load_be<uint32_t>(input, 11);
      uint32_t W12 = load_be<uint32_t>(input, 12);
      uint32_t W13 = load_be<uint32_t>(input, 13);
      uint32_t W14 = load_be<uint32_t>(input, 14);
      uint32_t W15 = load_be<uint32_t>(input, 15);

      SHA2_32_F(A, B, C, D, E, F, G, H, W00, W14, W09, W01, 0x428A2F98);
      SHA2_32_F(H, A, B, C, D, E, F, G, W01, W15, W10, W02, 0x71374491);
      SHA2_32_F(G, H, A, B, C, D, E, F, W02, W00, W11, W03, 0xB5C0FBCF);
      SHA2_32_F(F, G, H, A, B, C, D, E, W03, W01, W12, W04, 0xE9B5DBA5);
      SHA2_32_F(E, F, G, H, A, B, C, D, W04, W02, W13, W05, 0x3956C25B);
      SHA2_32_F(D, E, F, G, H, A, B, C, W05, W03, W14, W06, 0x59F111F1);
      SHA2_32_F(C, D, E, F, G, H, A, B, W06, W04, W15, W07, 0x923F82A4);
      SHA2_32_F(B, C, D, E, F, G, H, A, W07, W05, W00, W08, 0xAB1C5ED5);
      SHA2_32_F(A, B, C, D, E, F, G, H, W08, W06, W01, W09, 0xD807AA98);
      SHA2_32_F(H, A, B, C, D, E, F, G, W09, W07, W02, W10, 0x12835B01);
      SHA2_32_F(G, H, A, B, C, D, E, F, W10, W08, W03, W11, 0x243185BE);
      SHA2_32_F(F, G, H, A, B, C, D, E, W11, W09, W04, W12, 0x550C7DC3);
      SHA2_32_F(E, F, G, H, A, B, C, D, W12, W10, W05, W13, 0x72BE5D74);
      SHA2_32_F(D, E, F, G, H, A, B, C, W13, W11, W06, W14, 0x80DEB1FE);
      SHA2_32_F(C, D, E, F, G, H, A, B, W14, W12, W07, W15, 0x9BDC06A7);
      SHA2_32_F(B, C, D, E, F, G, H, A, W15, W13, W08, W00, 0xC19BF174);

      SHA2_32_F(A, B, C, D, E, F, G, H, W00, W14, W09, W01, 0xE49B69C1);
      SHA2_32_F(H, A, B, C, D, E, F, G, W01, W15, W10, W02, 0xEFBE4786);
      SHA2_32_F(G, H, A, B, C, D, E, F, W02, W00, W11, W03, 0x0FC19DC6);
      SHA2_32_F(F, G, H, A, B, C, D, E, W03, W01, W12, W04, 0x240CA1CC);
      SHA2_32_F(E, F, G, H, A, B, C, D, W04, W02, W13, W05, 0x2DE92C6F);
      SHA2_32_F(D, E, F, G, H, A, B, C, W05, W03, W14, W06, 0x4A7484AA);
      SHA2_32_F(C, D, E, F, G, H, A, B, W06, W04, W15, W07, 0x5CB0A9DC);
      SHA2_32_F(B, C, D, E, F, G, H, A, W07, W05, W00, W08, 0x76F988DA);
      SHA2_32_F(A, B, C, D, E, F, G, H, W08, W06, W01, W09, 0x983E5152);
      SHA2_32_F(H, A, B, C, D, E, F, G, W09, W07, W02, W10, 0xA831C66D);
      SHA2_32_F(G, H, A, B, C, D, E, F, W10, W08, W03, W11, 0xB00327C8);
      SHA2_32_F(F, G, H, A, B, C, D, E, W11, W09, W04, W12, 0xBF597FC7);
      SHA2_32_F(E, F, G, H, A, B, C, D, W12, W10, W05, W13, 0xC6E00BF3);
      SHA2_32_F(D, E, F, G, H, A, B, C, W13, W11, W06, W14, 0xD5A79147);
      SHA2_32_F(C, D, E, F, G, H, A, B, W14, W12, W07, W15, 0x06CA6351);
      SHA2_32_F(B, C, D, E, F, G, H, A, W15, W13, W08, W00, 0x14292967);

      SHA2_32_F(A, B, C, D, E, F, G, H, W00, W14, W09, W01, 0x27B70A85);
      SHA2_32_F(H, A, B, C, D, E, F, G, W01, W15, W10, W02, 0x2E1B2138);
      SHA2_32_F(G, H, A, B, C, D, E, F, W02, W00, W11, W03, 0x4D2C6DFC);
      SHA2_32_F(F, G, H, A, B, C, D, E, W03, W01, W12, W04, 0x53380D13);
      SHA2_32_F(E, F, G, H, A, B, C, D, W04, W02, W13, W05, 0x650A7354);
      SHA2_32_F(D, E, F, G, H, A, B, C, W05, W03, W14, W06, 0x766A0ABB);
      SHA2_32_F(C, D, E, F, G, H, A, B, W06, W04, W15, W07, 0x81C2C92E);
      SHA2_32_F(B, C, D, E, F, G, H, A, W07, W05, W00, W08, 0x92722C85);
      SHA2_32_F(A, B, C, D, E, F, G, H, W08, W06, W01, W09, 0xA2BFE8A1);
      SHA2_32_F(H, A, B, C, D, E, F, G, W09, W07, W02, W10, 0xA81A664B);
      SHA2_32_F(G, H, A, B, C, D, E, F, W10, W08, W03, W11, 0xC24B8B70);
      SHA2_32_F(F, G, H, A, B, C, D, E, W11, W09, W04, W12, 0xC76C51A3);
      SHA2_32_F(E, F, G, H, A, B, C, D, W12, W10, W05, W13, 0xD192E819);
      SHA2_32_F(D, E, F, G, H, A, B, C, W13, W11, W06, W14, 0xD6990624);
      SHA2_32_F(C, D, E, F, G, H, A, B, W14, W12, W07, W15, 0xF40E3585);
      SHA2_32_F(B, C, D, E, F, G, H, A, W15, W13, W08, W00, 0x106AA070);

      SHA2_32_F(A, B, C, D, E, F, G, H, W00, W14, W09, W01, 0x19A4C116);
      SHA2_32_F(H, A, B, C, D, E, F, G, W01, W15, W10, W02, 0x1E376C08);
      SHA2_32_F(G, H, A, B, C, D, E, F, W02, W00, W11, W03, 0x2748774C);
      SHA2_32_F(F, G, H, A, B, C, D, E, W03, W01, W12, W04, 0x34B0BCB5);
      SHA2_32_F(E, F, G, H, A, B, C, D, W04, W02, W13, W05, 0x391C0CB3);
      SHA2_32_F(D, E, F, G, H, A, B, C, W05, W03, W14, W06, 0x4ED8AA4A);
      SHA2_32_F(C, D, E, F, G, H, A, B, W06, W04, W15, W07, 0x5B9CCA4F);
      SHA2_32_F(B, C, D, E, F, G, H, A, W07, W05, W00, W08, 0x682E6FF3);
      SHA2_32_F(A, B, C, D, E, F, G, H, W08, W06, W01, W09, 0x748F82EE);
      SHA2_32_F(H, A, B, C, D, E, F, G, W09, W07, W02, W10, 0x78A5636F);
      SHA2_32_F(G, H, A, B, C, D, E, F, W10, W08, W03, W11, 0x84C87814);
      SHA2_32_F(F, G, H, A, B, C, D, E, W11, W09, W04, W12, 0x8CC70208);
      SHA2_32_F(E, F, G, H, A, B, C, D, W12, W10, W05, W13, 0x90BEFFFA);
      SHA2_32_F(D, E, F, G, H, A, B, C, W13, W11, W06, W14, 0xA4506CEB);
      SHA2_32_F(C, D, E, F, G, H, A, B, W14, W12, W07, W15, 0xBEF9A3F7);
      SHA2_32_F(B, C, D, E, F, G, H, A, W15, W13, W08, W00, 0xC67178F2);

      A = (digest[0] += A);
      B = (digest[1] += B);
      C = (digest[2] += C);
      D = (digest[3] += D);
      E = (digest[4] += E);
      F = (digest[5] += F);
      G = (digest[6] += G);
      H = (digest[7] += H);

      input += 64;
      }
   }

}

Coverage Report

Created: 2022-01-14 08:07

Line	Count	Source
1		/*
2		* (C) 2018 Jack Lloyd
3		*
4		* Botan is released under the Simplified BSD License (see license.txt)
5		*/
6
7		#include <botan/internal/sha2_32.h>
8		#include <botan/internal/loadstor.h>
9		#include <botan/internal/rotate.h>
10		#include <botan/internal/bit_ops.h>
11
12		namespace Botan {
13
14		/*
15		Your eyes do not decieve you; this is currently just a copy of the
16		baseline SHA-256 implementation. Because we compile it with BMI2
17		flags, GCC and Clang use the BMI2 instructions without further help.
18
19		Likely instruction scheduling could be improved by using inline asm.
20		*/
21
22	60.6M	#define SHA2_32_F(A, B, C, D, E, F, G, H, M1, M2, M3, M4, magic) do { \
23	60.6M	uint32_t A_rho = rotr<2>(A) ^ rotr<13>(A) ^ rotr<22>(A); \
24	60.6M	uint32_t E_rho = rotr<6>(E) ^ rotr<11>(E) ^ rotr<25>(E); \
25	60.6M	uint32_t M2_sigma = rotr<17>(M2) ^ rotr<19>(M2) ^ (M2 >> 10); \
26	60.6M	uint32_t M4_sigma = rotr<7>(M4) ^ rotr<18>(M4) ^ (M4 >> 3); \
27	60.6M	H += magic + E_rho + choose(E, F, G) + M1; \
28	60.6M	D += H; \
29	60.6M	H += A_rho + majority(A, B, C); \
30	60.6M	M1 += M2_sigma + M3 + M4_sigma; \
31	60.6M	} while(0);
32
33		void SHA_256::compress_digest_x86_bmi2(secure_vector<uint32_t>& digest,
34		const uint8_t input[],
35		size_t blocks)
36	755k	{
37	755k	uint32_t A = digest[0], B = digest[1], C = digest[2],
38	755k	D = digest[3], E = digest[4], F = digest[5],
39	755k	G = digest[6], H = digest[7];
40
41	1.70M	for(size_t i = 0; i != blocks; ++i)
42	947k	{
43	947k	uint32_t W00 = load_be<uint32_t>(input, 0);
44	947k	uint32_t W01 = load_be<uint32_t>(input, 1);
45	947k	uint32_t W02 = load_be<uint32_t>(input, 2);
46	947k	uint32_t W03 = load_be<uint32_t>(input, 3);
47	947k	uint32_t W04 = load_be<uint32_t>(input, 4);
48	947k	uint32_t W05 = load_be<uint32_t>(input, 5);
49	947k	uint32_t W06 = load_be<uint32_t>(input, 6);
50	947k	uint32_t W07 = load_be<uint32_t>(input, 7);
51	947k	uint32_t W08 = load_be<uint32_t>(input, 8);
52	947k	uint32_t W09 = load_be<uint32_t>(input, 9);
53	947k	uint32_t W10 = load_be<uint32_t>(input, 10);
54	947k	uint32_t W11 = load_be<uint32_t>(input, 11);
55	947k	uint32_t W12 = load_be<uint32_t>(input, 12);
56	947k	uint32_t W13 = load_be<uint32_t>(input, 13);
57	947k	uint32_t W14 = load_be<uint32_t>(input, 14);
58	947k	uint32_t W15 = load_be<uint32_t>(input, 15);
59
60	947k	SHA2_32_F(A, B, C, D, E, F, G, H, W00, W14, W09, W01, 0x428A2F98);
61	947k	SHA2_32_F(H, A, B, C, D, E, F, G, W01, W15, W10, W02, 0x71374491);
62	947k	SHA2_32_F(G, H, A, B, C, D, E, F, W02, W00, W11, W03, 0xB5C0FBCF);
63	947k	SHA2_32_F(F, G, H, A, B, C, D, E, W03, W01, W12, W04, 0xE9B5DBA5);
64	947k	SHA2_32_F(E, F, G, H, A, B, C, D, W04, W02, W13, W05, 0x3956C25B);
65	947k	SHA2_32_F(D, E, F, G, H, A, B, C, W05, W03, W14, W06, 0x59F111F1);
66	947k	SHA2_32_F(C, D, E, F, G, H, A, B, W06, W04, W15, W07, 0x923F82A4);
67	947k	SHA2_32_F(B, C, D, E, F, G, H, A, W07, W05, W00, W08, 0xAB1C5ED5);
68	947k	SHA2_32_F(A, B, C, D, E, F, G, H, W08, W06, W01, W09, 0xD807AA98);
69	947k	SHA2_32_F(H, A, B, C, D, E, F, G, W09, W07, W02, W10, 0x12835B01);
70	947k	SHA2_32_F(G, H, A, B, C, D, E, F, W10, W08, W03, W11, 0x243185BE);
71	947k	SHA2_32_F(F, G, H, A, B, C, D, E, W11, W09, W04, W12, 0x550C7DC3);
72	947k	SHA2_32_F(E, F, G, H, A, B, C, D, W12, W10, W05, W13, 0x72BE5D74);
73	947k	SHA2_32_F(D, E, F, G, H, A, B, C, W13, W11, W06, W14, 0x80DEB1FE);
74	947k	SHA2_32_F(C, D, E, F, G, H, A, B, W14, W12, W07, W15, 0x9BDC06A7);
75	947k	SHA2_32_F(B, C, D, E, F, G, H, A, W15, W13, W08, W00, 0xC19BF174);
76
77	947k	SHA2_32_F(A, B, C, D, E, F, G, H, W00, W14, W09, W01, 0xE49B69C1);
78	947k	SHA2_32_F(H, A, B, C, D, E, F, G, W01, W15, W10, W02, 0xEFBE4786);
79	947k	SHA2_32_F(G, H, A, B, C, D, E, F, W02, W00, W11, W03, 0x0FC19DC6);
80	947k	SHA2_32_F(F, G, H, A, B, C, D, E, W03, W01, W12, W04, 0x240CA1CC);
81	947k	SHA2_32_F(E, F, G, H, A, B, C, D, W04, W02, W13, W05, 0x2DE92C6F);
82	947k	SHA2_32_F(D, E, F, G, H, A, B, C, W05, W03, W14, W06, 0x4A7484AA);
83	947k	SHA2_32_F(C, D, E, F, G, H, A, B, W06, W04, W15, W07, 0x5CB0A9DC);
84	947k	SHA2_32_F(B, C, D, E, F, G, H, A, W07, W05, W00, W08, 0x76F988DA);
85	947k	SHA2_32_F(A, B, C, D, E, F, G, H, W08, W06, W01, W09, 0x983E5152);
86	947k	SHA2_32_F(H, A, B, C, D, E, F, G, W09, W07, W02, W10, 0xA831C66D);
87	947k	SHA2_32_F(G, H, A, B, C, D, E, F, W10, W08, W03, W11, 0xB00327C8);
88	947k	SHA2_32_F(F, G, H, A, B, C, D, E, W11, W09, W04, W12, 0xBF597FC7);
89	947k	SHA2_32_F(E, F, G, H, A, B, C, D, W12, W10, W05, W13, 0xC6E00BF3);
90	947k	SHA2_32_F(D, E, F, G, H, A, B, C, W13, W11, W06, W14, 0xD5A79147);
91	947k	SHA2_32_F(C, D, E, F, G, H, A, B, W14, W12, W07, W15, 0x06CA6351);
92	947k	SHA2_32_F(B, C, D, E, F, G, H, A, W15, W13, W08, W00, 0x14292967);
93
94	947k	SHA2_32_F(A, B, C, D, E, F, G, H, W00, W14, W09, W01, 0x27B70A85);
95	947k	SHA2_32_F(H, A, B, C, D, E, F, G, W01, W15, W10, W02, 0x2E1B2138);
96	947k	SHA2_32_F(G, H, A, B, C, D, E, F, W02, W00, W11, W03, 0x4D2C6DFC);
97	947k	SHA2_32_F(F, G, H, A, B, C, D, E, W03, W01, W12, W04, 0x53380D13);
98	947k	SHA2_32_F(E, F, G, H, A, B, C, D, W04, W02, W13, W05, 0x650A7354);
99	947k	SHA2_32_F(D, E, F, G, H, A, B, C, W05, W03, W14, W06, 0x766A0ABB);
100	947k	SHA2_32_F(C, D, E, F, G, H, A, B, W06, W04, W15, W07, 0x81C2C92E);
101	947k	SHA2_32_F(B, C, D, E, F, G, H, A, W07, W05, W00, W08, 0x92722C85);
102	947k	SHA2_32_F(A, B, C, D, E, F, G, H, W08, W06, W01, W09, 0xA2BFE8A1);
103	947k	SHA2_32_F(H, A, B, C, D, E, F, G, W09, W07, W02, W10, 0xA81A664B);
104	947k	SHA2_32_F(G, H, A, B, C, D, E, F, W10, W08, W03, W11, 0xC24B8B70);
105	947k	SHA2_32_F(F, G, H, A, B, C, D, E, W11, W09, W04, W12, 0xC76C51A3);
106	947k	SHA2_32_F(E, F, G, H, A, B, C, D, W12, W10, W05, W13, 0xD192E819);
107	947k	SHA2_32_F(D, E, F, G, H, A, B, C, W13, W11, W06, W14, 0xD6990624);
108	947k	SHA2_32_F(C, D, E, F, G, H, A, B, W14, W12, W07, W15, 0xF40E3585);
109	947k	SHA2_32_F(B, C, D, E, F, G, H, A, W15, W13, W08, W00, 0x106AA070);
110
111	947k	SHA2_32_F(A, B, C, D, E, F, G, H, W00, W14, W09, W01, 0x19A4C116);
112	947k	SHA2_32_F(H, A, B, C, D, E, F, G, W01, W15, W10, W02, 0x1E376C08);
113	947k	SHA2_32_F(G, H, A, B, C, D, E, F, W02, W00, W11, W03, 0x2748774C);
114	947k	SHA2_32_F(F, G, H, A, B, C, D, E, W03, W01, W12, W04, 0x34B0BCB5);
115	947k	SHA2_32_F(E, F, G, H, A, B, C, D, W04, W02, W13, W05, 0x391C0CB3);
116	947k	SHA2_32_F(D, E, F, G, H, A, B, C, W05, W03, W14, W06, 0x4ED8AA4A);
117	947k	SHA2_32_F(C, D, E, F, G, H, A, B, W06, W04, W15, W07, 0x5B9CCA4F);
118	947k	SHA2_32_F(B, C, D, E, F, G, H, A, W07, W05, W00, W08, 0x682E6FF3);
119	947k	SHA2_32_F(A, B, C, D, E, F, G, H, W08, W06, W01, W09, 0x748F82EE);
120	947k	SHA2_32_F(H, A, B, C, D, E, F, G, W09, W07, W02, W10, 0x78A5636F);
121	947k	SHA2_32_F(G, H, A, B, C, D, E, F, W10, W08, W03, W11, 0x84C87814);
122	947k	SHA2_32_F(F, G, H, A, B, C, D, E, W11, W09, W04, W12, 0x8CC70208);
123	947k	SHA2_32_F(E, F, G, H, A, B, C, D, W12, W10, W05, W13, 0x90BEFFFA);
124	947k	SHA2_32_F(D, E, F, G, H, A, B, C, W13, W11, W06, W14, 0xA4506CEB);
125	947k	SHA2_32_F(C, D, E, F, G, H, A, B, W14, W12, W07, W15, 0xBEF9A3F7);
126	947k	SHA2_32_F(B, C, D, E, F, G, H, A, W15, W13, W08, W00, 0xC67178F2);
127
128	947k	A = (digest[0] += A);
129	947k	B = (digest[1] += B);
130	947k	C = (digest[2] += C);
131	947k	D = (digest[3] += D);
132	947k	E = (digest[4] += E);
133	947k	F = (digest[5] += F);
134	947k	G = (digest[6] += G);
135	947k	H = (digest[7] += H);
136
137	947k	input += 64;
138	947k	}
139	755k	}
140
141		}