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-rw-r--r--src/hash/sha1_sse2/sha1_sse2_imp.cpp380
1 files changed, 203 insertions, 177 deletions
diff --git a/src/hash/sha1_sse2/sha1_sse2_imp.cpp b/src/hash/sha1_sse2/sha1_sse2_imp.cpp
index 0c48b5de0..049199156 100644
--- a/src/hash/sha1_sse2/sha1_sse2_imp.cpp
+++ b/src/hash/sha1_sse2/sha1_sse2_imp.cpp
@@ -13,22 +13,21 @@
* http://arctic.org/~dean/crypto/sha1.html
*
* version: 2
- */
-
-/*
- * Lightly modified for Botan, tested under GCC 4.1.1 and ICC 9.1
- * on a Linux/Core2 system.
*
+ * Minor changes made use with for Botan by Jack Lloyd
*/
+
#include <botan/sha1_sse2.h>
+#include <botan/rotate.h>
#include <xmmintrin.h>
-namespace Botan {
+using Botan::u32bit;
+using Botan::rotate_left;
typedef union {
- u32bit u32[4];
- __m128i u128;
- } v4si __attribute__((aligned(16)));
+ u32bit u32[4];
+ __m128i u128;
+} v4si __attribute__((aligned(16)));
static const v4si K00_19 = { { 0x5a827999, 0x5a827999, 0x5a827999, 0x5a827999 } };
static const v4si K20_39 = { { 0x6ed9eba1, 0x6ed9eba1, 0x6ed9eba1, 0x6ed9eba1 } };
@@ -42,14 +41,13 @@ static const v4si K60_79 = { { 0xca62c1d6, 0xca62c1d6, 0xca62c1d6, 0xca62c1d6 }
#define load(p) (*p)
#endif
-
/*
-the first 16 bytes only need byte swapping
+ the first 16 bytes only need byte swapping
-prepared points to 4x u32bit, 16-byte aligned
+ prepared points to 4x u32bit, 16-byte aligned
-W points to the 4 dwords which need preparing --
-and is overwritten with the swapped bytes
+ W points to the 4 dwords which need preparing --
+ and is overwritten with the swapped bytes
*/
#define prep00_15(prep, W) do { \
__m128i r1, r2; \
@@ -69,50 +67,50 @@ and is overwritten with the swapped bytes
/*
-for each multiple of 4, t, we want to calculate this:
+ for each multiple of 4, t, we want to calculate this:
-W[t+0] = rol(W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16], 1);
-W[t+1] = rol(W[t-2] ^ W[t-7] ^ W[t-13] ^ W[t-15], 1);
-W[t+2] = rol(W[t-1] ^ W[t-6] ^ W[t-12] ^ W[t-14], 1);
-W[t+3] = rol(W[t] ^ W[t-5] ^ W[t-11] ^ W[t-13], 1);
+ W[t+0] = rol(W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16], 1);
+ W[t+1] = rol(W[t-2] ^ W[t-7] ^ W[t-13] ^ W[t-15], 1);
+ W[t+2] = rol(W[t-1] ^ W[t-6] ^ W[t-12] ^ W[t-14], 1);
+ W[t+3] = rol(W[t] ^ W[t-5] ^ W[t-11] ^ W[t-13], 1);
-we'll actually calculate this:
+ we'll actually calculate this:
-W[t+0] = rol(W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16], 1);
-W[t+1] = rol(W[t-2] ^ W[t-7] ^ W[t-13] ^ W[t-15], 1);
-W[t+2] = rol(W[t-1] ^ W[t-6] ^ W[t-12] ^ W[t-14], 1);
-W[t+3] = rol( 0 ^ W[t-5] ^ W[t-11] ^ W[t-13], 1);
-W[t+3] ^= rol(W[t+0], 1);
+ W[t+0] = rol(W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16], 1);
+ W[t+1] = rol(W[t-2] ^ W[t-7] ^ W[t-13] ^ W[t-15], 1);
+ W[t+2] = rol(W[t-1] ^ W[t-6] ^ W[t-12] ^ W[t-14], 1);
+ W[t+3] = rol( 0 ^ W[t-5] ^ W[t-11] ^ W[t-13], 1);
+ W[t+3] ^= rol(W[t+0], 1);
-the parameters are:
+ the parameters are:
-W0 = &W[t-16];
-W1 = &W[t-12];
-W2 = &W[t- 8];
-W3 = &W[t- 4];
+ W0 = &W[t-16];
+ W1 = &W[t-12];
+ W2 = &W[t- 8];
+ W3 = &W[t- 4];
-and on output:
-prepared = W0 + K
-W0 = W[t]..W[t+3]
+ and on output:
+ prepared = W0 + K
+ W0 = W[t]..W[t+3]
*/
/* note that there is a step here where i want to do a rol by 1, which
-* normally would look like this:
-*
-* r1 = psrld r0,$31
-* r0 = pslld r0,$1
-* r0 = por r0,r1
-*
-* but instead i do this:
-*
-* r1 = pcmpltd r0,zero
-* r0 = paddd r0,r0
-* r0 = psub r0,r1
-*
-* because pcmpltd and paddd are availabe in both MMX units on
-* efficeon, pentium-m, and opteron but shifts are available in
-* only one unit.
-*/
+ * normally would look like this:
+ *
+ * r1 = psrld r0,$31
+ * r0 = pslld r0,$1
+ * r0 = por r0,r1
+ *
+ * but instead i do this:
+ *
+ * r1 = pcmpltd r0,zero
+ * r0 = paddd r0,r0
+ * r0 = psub r0,r1
+ *
+ * because pcmpltd and paddd are availabe in both MMX units on
+ * efficeon, pentium-m, and opteron but shifts are available in
+ * only one unit.
+ */
#define prep(prep, XW0, XW1, XW2, XW3, K) do { \
__m128i r0, r1, r2, r3; \
\
@@ -146,52 +144,45 @@ W0 = W[t]..W[t+3]
} while(0)
-static inline u32bit rol(u32bit src, u32bit amt)
- {
- /* gcc and icc appear to turn this into a rotate */
- return (src << amt) | (src >> (32 - amt));
- }
-
-
static inline u32bit f00_19(u32bit x, u32bit y, u32bit z)
- {
- /* FIPS 180-2 says this: (x & y) ^ (~x & z)
- * but we can calculate it in fewer steps.
- */
- return ((y ^ z) & x) ^ z;
- }
+{
+ /* FIPS 180-2 says this: (x & y) ^ (~x & z)
+ * but we can calculate it in fewer steps.
+ */
+ return ((y ^ z) & x) ^ z;
+}
static inline u32bit f20_39(u32bit x, u32bit y, u32bit z)
- {
- return (x ^ z) ^ y;
- }
+{
+ return (x ^ z) ^ y;
+}
static inline u32bit f40_59(u32bit x, u32bit y, u32bit z)
- {
- /* FIPS 180-2 says this: (x & y) ^ (x & z) ^ (y & z)
- * but we can calculate it in fewer steps.
- */
- return (x & z) | ((x | z) & y);
- }
+{
+ /* FIPS 180-2 says this: (x & y) ^ (x & z) ^ (y & z)
+ * but we can calculate it in fewer steps.
+ */
+ return (x & z) | ((x | z) & y);
+}
static inline u32bit f60_79(u32bit x, u32bit y, u32bit z)
- {
- return f20_39(x, y, z);
- }
+{
+ return f20_39(x, y, z);
+}
-#define step(nn_mm, xa, xb, xc, xd, xe, xt, input) do { \
- (xt) = (input) + f##nn_mm((xb), (xc), (xd)); \
- (xb) = rol((xb), 30); \
- (xt) += ((xe) + rol((xa), 5)); \
- } while(0)
-extern "C" void botan_sha1_sse2_compress(u32bit H[5],
- const u32bit* inputu)
+#define step(nn_mm, xa, xb, xc, xd, xe, xt, input) do { \
+ (xt) = (input) + f##nn_mm((xb), (xc), (xd)); \
+ (xb) = rotate_left((xb), 30); \
+ (xt) += ((xe) + rotate_left((xa), 5)); \
+ } while(0)
+
+extern "C" void botan_sha1_sse2_compress(u32bit H[5], const u32bit inputu[], u32bit blocks)
{
- const __m128i * input = (const __m128i *)inputu;
+ const __m128i * input = (const __m128i *)inputu;
__m128i W0, W1, W2, W3;
v4si prep0, prep1, prep2;
u32bit a, b, c, d, e, t;
@@ -212,101 +203,137 @@ extern "C" void botan_sha1_sse2_compress(u32bit H[5],
prep00_15(prep1, W1); /* prepare for 04 through 07 */
W2 = load(&input[2]);
prep00_15(prep2, W2); /* prepare for 08 through 11 */
+ for (;;)
+ {
+ W3 = load(&input[3]);
+ step(00_19, a, b, c, d, e, t, prep0.u32[0]); /* 00 */
+ step(00_19, t, a, b, c, d, e, prep0.u32[1]); /* 01 */
+ step(00_19, e, t, a, b, c, d, prep0.u32[2]); /* 02 */
+ step(00_19, d, e, t, a, b, c, prep0.u32[3]); /* 03 */
+ prep00_15(prep0, W3);
+ step(00_19, c, d, e, t, a, b, prep1.u32[0]); /* 04 */
+ step(00_19, b, c, d, e, t, a, prep1.u32[1]); /* 05 */
+ step(00_19, a, b, c, d, e, t, prep1.u32[2]); /* 06 */
+ step(00_19, t, a, b, c, d, e, prep1.u32[3]); /* 07 */
+ prep(prep1, W0, W1, W2, W3, K00_19); /* prepare for 16 through 19 */
+ step(00_19, e, t, a, b, c, d, prep2.u32[0]); /* 08 */
+ step(00_19, d, e, t, a, b, c, prep2.u32[1]); /* 09 */
+ step(00_19, c, d, e, t, a, b, prep2.u32[2]); /* 10 */
+ step(00_19, b, c, d, e, t, a, prep2.u32[3]); /* 11 */
+ prep(prep2, W1, W2, W3, W0, K20_39); /* prepare for 20 through 23 */
+ step(00_19, a, b, c, d, e, t, prep0.u32[0]); /* 12 */
+ step(00_19, t, a, b, c, d, e, prep0.u32[1]); /* 13 */
+ step(00_19, e, t, a, b, c, d, prep0.u32[2]); /* 14 */
+ step(00_19, d, e, t, a, b, c, prep0.u32[3]); /* 15 */
+ prep(prep0, W2, W3, W0, W1, K20_39);
+ step(00_19, c, d, e, t, a, b, prep1.u32[0]); /* 16 */
+ step(00_19, b, c, d, e, t, a, prep1.u32[1]); /* 17 */
+ step(00_19, a, b, c, d, e, t, prep1.u32[2]); /* 18 */
+ step(00_19, t, a, b, c, d, e, prep1.u32[3]); /* 19 */
+
+ prep(prep1, W3, W0, W1, W2, K20_39);
+ step(20_39, e, t, a, b, c, d, prep2.u32[0]); /* 20 */
+ step(20_39, d, e, t, a, b, c, prep2.u32[1]); /* 21 */
+ step(20_39, c, d, e, t, a, b, prep2.u32[2]); /* 22 */
+ step(20_39, b, c, d, e, t, a, prep2.u32[3]); /* 23 */
+ prep(prep2, W0, W1, W2, W3, K20_39);
+ step(20_39, a, b, c, d, e, t, prep0.u32[0]); /* 24 */
+ step(20_39, t, a, b, c, d, e, prep0.u32[1]); /* 25 */
+ step(20_39, e, t, a, b, c, d, prep0.u32[2]); /* 26 */
+ step(20_39, d, e, t, a, b, c, prep0.u32[3]); /* 27 */
+ prep(prep0, W1, W2, W3, W0, K20_39);
+ step(20_39, c, d, e, t, a, b, prep1.u32[0]); /* 28 */
+ step(20_39, b, c, d, e, t, a, prep1.u32[1]); /* 29 */
+ step(20_39, a, b, c, d, e, t, prep1.u32[2]); /* 30 */
+ step(20_39, t, a, b, c, d, e, prep1.u32[3]); /* 31 */
+ prep(prep1, W2, W3, W0, W1, K40_59);
+ step(20_39, e, t, a, b, c, d, prep2.u32[0]); /* 32 */
+ step(20_39, d, e, t, a, b, c, prep2.u32[1]); /* 33 */
+ step(20_39, c, d, e, t, a, b, prep2.u32[2]); /* 34 */
+ step(20_39, b, c, d, e, t, a, prep2.u32[3]); /* 35 */
+ prep(prep2, W3, W0, W1, W2, K40_59);
+ step(20_39, a, b, c, d, e, t, prep0.u32[0]); /* 36 */
+ step(20_39, t, a, b, c, d, e, prep0.u32[1]); /* 37 */
+ step(20_39, e, t, a, b, c, d, prep0.u32[2]); /* 38 */
+ step(20_39, d, e, t, a, b, c, prep0.u32[3]); /* 39 */
+
+ prep(prep0, W0, W1, W2, W3, K40_59);
+ step(40_59, c, d, e, t, a, b, prep1.u32[0]); /* 40 */
+ step(40_59, b, c, d, e, t, a, prep1.u32[1]); /* 41 */
+ step(40_59, a, b, c, d, e, t, prep1.u32[2]); /* 42 */
+ step(40_59, t, a, b, c, d, e, prep1.u32[3]); /* 43 */
+ prep(prep1, W1, W2, W3, W0, K40_59);
+ step(40_59, e, t, a, b, c, d, prep2.u32[0]); /* 44 */
+ step(40_59, d, e, t, a, b, c, prep2.u32[1]); /* 45 */
+ step(40_59, c, d, e, t, a, b, prep2.u32[2]); /* 46 */
+ step(40_59, b, c, d, e, t, a, prep2.u32[3]); /* 47 */
+ prep(prep2, W2, W3, W0, W1, K40_59);
+ step(40_59, a, b, c, d, e, t, prep0.u32[0]); /* 48 */
+ step(40_59, t, a, b, c, d, e, prep0.u32[1]); /* 49 */
+ step(40_59, e, t, a, b, c, d, prep0.u32[2]); /* 50 */
+ step(40_59, d, e, t, a, b, c, prep0.u32[3]); /* 51 */
+ prep(prep0, W3, W0, W1, W2, K60_79);
+ step(40_59, c, d, e, t, a, b, prep1.u32[0]); /* 52 */
+ step(40_59, b, c, d, e, t, a, prep1.u32[1]); /* 53 */
+ step(40_59, a, b, c, d, e, t, prep1.u32[2]); /* 54 */
+ step(40_59, t, a, b, c, d, e, prep1.u32[3]); /* 55 */
+ prep(prep1, W0, W1, W2, W3, K60_79);
+ step(40_59, e, t, a, b, c, d, prep2.u32[0]); /* 56 */
+ step(40_59, d, e, t, a, b, c, prep2.u32[1]); /* 57 */
+ step(40_59, c, d, e, t, a, b, prep2.u32[2]); /* 58 */
+ step(40_59, b, c, d, e, t, a, prep2.u32[3]); /* 59 */
+
+ prep(prep2, W1, W2, W3, W0, K60_79);
+ step(60_79, a, b, c, d, e, t, prep0.u32[0]); /* 60 */
+ step(60_79, t, a, b, c, d, e, prep0.u32[1]); /* 61 */
+ step(60_79, e, t, a, b, c, d, prep0.u32[2]); /* 62 */
+ step(60_79, d, e, t, a, b, c, prep0.u32[3]); /* 63 */
+ prep(prep0, W2, W3, W0, W1, K60_79);
+ step(60_79, c, d, e, t, a, b, prep1.u32[0]); /* 64 */
+ step(60_79, b, c, d, e, t, a, prep1.u32[1]); /* 65 */
+ step(60_79, a, b, c, d, e, t, prep1.u32[2]); /* 66 */
+ step(60_79, t, a, b, c, d, e, prep1.u32[3]); /* 67 */
+ prep(prep1, W3, W0, W1, W2, K60_79);
+ step(60_79, e, t, a, b, c, d, prep2.u32[0]); /* 68 */
+ step(60_79, d, e, t, a, b, c, prep2.u32[1]); /* 69 */
+ step(60_79, c, d, e, t, a, b, prep2.u32[2]); /* 70 */
+ step(60_79, b, c, d, e, t, a, prep2.u32[3]); /* 71 */
+
+ --blocks;
+ if (blocks == 0) break;
+
+ input += 4;
+ W0 = load(&input[0]);
+ prep00_15(prep2, W0); /* prepare for next 00 through 03 */
+ W1 = load(&input[1]);
+ step(60_79, a, b, c, d, e, t, prep0.u32[0]); /* 72 */
+ step(60_79, t, a, b, c, d, e, prep0.u32[1]); /* 73 */
+ step(60_79, e, t, a, b, c, d, prep0.u32[2]); /* 74 */
+ step(60_79, d, e, t, a, b, c, prep0.u32[3]); /* 75 */
+ prep0 = prep2; /* top of loop expects this in prep0 */
+ prep00_15(prep2, W1); /* prepare for next 04 through 07 */
+ W2 = load(&input[2]);
+ step(60_79, c, d, e, t, a, b, prep1.u32[0]); /* 76 */
+ step(60_79, b, c, d, e, t, a, prep1.u32[1]); /* 77 */
+ step(60_79, a, b, c, d, e, t, prep1.u32[2]); /* 78 */
+ step(60_79, t, a, b, c, d, e, prep1.u32[3]); /* 79 */
+ prep1 = prep2; /* top of loop expects this in prep1 */
+ prep00_15(prep2, W2); /* prepare for next 08 through 11 */
+ /* e, t, a, b, c, d */
+ H[0] += e;
+ H[1] += t;
+ H[2] += a;
+ H[3] += b;
+ H[4] += c;
+
+ a = H[0];
+ b = H[1];
+ c = H[2];
+ d = H[3];
+ e = H[4];
+ }
- W3 = load(&input[3]);
- step(00_19, a, b, c, d, e, t, prep0.u32[0]); /* 00 */
- step(00_19, t, a, b, c, d, e, prep0.u32[1]); /* 01 */
- step(00_19, e, t, a, b, c, d, prep0.u32[2]); /* 02 */
- step(00_19, d, e, t, a, b, c, prep0.u32[3]); /* 03 */
- prep00_15(prep0, W3);
- step(00_19, c, d, e, t, a, b, prep1.u32[0]); /* 04 */
- step(00_19, b, c, d, e, t, a, prep1.u32[1]); /* 05 */
- step(00_19, a, b, c, d, e, t, prep1.u32[2]); /* 06 */
- step(00_19, t, a, b, c, d, e, prep1.u32[3]); /* 07 */
- prep(prep1, W0, W1, W2, W3, K00_19); /* prepare for 16 through 19 */
- step(00_19, e, t, a, b, c, d, prep2.u32[0]); /* 08 */
- step(00_19, d, e, t, a, b, c, prep2.u32[1]); /* 09 */
- step(00_19, c, d, e, t, a, b, prep2.u32[2]); /* 10 */
- step(00_19, b, c, d, e, t, a, prep2.u32[3]); /* 11 */
- prep(prep2, W1, W2, W3, W0, K20_39); /* prepare for 20 through 23 */
- step(00_19, a, b, c, d, e, t, prep0.u32[0]); /* 12 */
- step(00_19, t, a, b, c, d, e, prep0.u32[1]); /* 13 */
- step(00_19, e, t, a, b, c, d, prep0.u32[2]); /* 14 */
- step(00_19, d, e, t, a, b, c, prep0.u32[3]); /* 15 */
- prep(prep0, W2, W3, W0, W1, K20_39);
- step(00_19, c, d, e, t, a, b, prep1.u32[0]); /* 16 */
- step(00_19, b, c, d, e, t, a, prep1.u32[1]); /* 17 */
- step(00_19, a, b, c, d, e, t, prep1.u32[2]); /* 18 */
- step(00_19, t, a, b, c, d, e, prep1.u32[3]); /* 19 */
-
- prep(prep1, W3, W0, W1, W2, K20_39);
- step(20_39, e, t, a, b, c, d, prep2.u32[0]); /* 20 */
- step(20_39, d, e, t, a, b, c, prep2.u32[1]); /* 21 */
- step(20_39, c, d, e, t, a, b, prep2.u32[2]); /* 22 */
- step(20_39, b, c, d, e, t, a, prep2.u32[3]); /* 23 */
- prep(prep2, W0, W1, W2, W3, K20_39);
- step(20_39, a, b, c, d, e, t, prep0.u32[0]); /* 24 */
- step(20_39, t, a, b, c, d, e, prep0.u32[1]); /* 25 */
- step(20_39, e, t, a, b, c, d, prep0.u32[2]); /* 26 */
- step(20_39, d, e, t, a, b, c, prep0.u32[3]); /* 27 */
- prep(prep0, W1, W2, W3, W0, K20_39);
- step(20_39, c, d, e, t, a, b, prep1.u32[0]); /* 28 */
- step(20_39, b, c, d, e, t, a, prep1.u32[1]); /* 29 */
- step(20_39, a, b, c, d, e, t, prep1.u32[2]); /* 30 */
- step(20_39, t, a, b, c, d, e, prep1.u32[3]); /* 31 */
- prep(prep1, W2, W3, W0, W1, K40_59);
- step(20_39, e, t, a, b, c, d, prep2.u32[0]); /* 32 */
- step(20_39, d, e, t, a, b, c, prep2.u32[1]); /* 33 */
- step(20_39, c, d, e, t, a, b, prep2.u32[2]); /* 34 */
- step(20_39, b, c, d, e, t, a, prep2.u32[3]); /* 35 */
- prep(prep2, W3, W0, W1, W2, K40_59);
- step(20_39, a, b, c, d, e, t, prep0.u32[0]); /* 36 */
- step(20_39, t, a, b, c, d, e, prep0.u32[1]); /* 37 */
- step(20_39, e, t, a, b, c, d, prep0.u32[2]); /* 38 */
- step(20_39, d, e, t, a, b, c, prep0.u32[3]); /* 39 */
-
- prep(prep0, W0, W1, W2, W3, K40_59);
- step(40_59, c, d, e, t, a, b, prep1.u32[0]); /* 40 */
- step(40_59, b, c, d, e, t, a, prep1.u32[1]); /* 41 */
- step(40_59, a, b, c, d, e, t, prep1.u32[2]); /* 42 */
- step(40_59, t, a, b, c, d, e, prep1.u32[3]); /* 43 */
- prep(prep1, W1, W2, W3, W0, K40_59);
- step(40_59, e, t, a, b, c, d, prep2.u32[0]); /* 44 */
- step(40_59, d, e, t, a, b, c, prep2.u32[1]); /* 45 */
- step(40_59, c, d, e, t, a, b, prep2.u32[2]); /* 46 */
- step(40_59, b, c, d, e, t, a, prep2.u32[3]); /* 47 */
- prep(prep2, W2, W3, W0, W1, K40_59);
- step(40_59, a, b, c, d, e, t, prep0.u32[0]); /* 48 */
- step(40_59, t, a, b, c, d, e, prep0.u32[1]); /* 49 */
- step(40_59, e, t, a, b, c, d, prep0.u32[2]); /* 50 */
- step(40_59, d, e, t, a, b, c, prep0.u32[3]); /* 51 */
- prep(prep0, W3, W0, W1, W2, K60_79);
- step(40_59, c, d, e, t, a, b, prep1.u32[0]); /* 52 */
- step(40_59, b, c, d, e, t, a, prep1.u32[1]); /* 53 */
- step(40_59, a, b, c, d, e, t, prep1.u32[2]); /* 54 */
- step(40_59, t, a, b, c, d, e, prep1.u32[3]); /* 55 */
- prep(prep1, W0, W1, W2, W3, K60_79);
- step(40_59, e, t, a, b, c, d, prep2.u32[0]); /* 56 */
- step(40_59, d, e, t, a, b, c, prep2.u32[1]); /* 57 */
- step(40_59, c, d, e, t, a, b, prep2.u32[2]); /* 58 */
- step(40_59, b, c, d, e, t, a, prep2.u32[3]); /* 59 */
-
- prep(prep2, W1, W2, W3, W0, K60_79);
- step(60_79, a, b, c, d, e, t, prep0.u32[0]); /* 60 */
- step(60_79, t, a, b, c, d, e, prep0.u32[1]); /* 61 */
- step(60_79, e, t, a, b, c, d, prep0.u32[2]); /* 62 */
- step(60_79, d, e, t, a, b, c, prep0.u32[3]); /* 63 */
- prep(prep0, W2, W3, W0, W1, K60_79);
- step(60_79, c, d, e, t, a, b, prep1.u32[0]); /* 64 */
- step(60_79, b, c, d, e, t, a, prep1.u32[1]); /* 65 */
- step(60_79, a, b, c, d, e, t, prep1.u32[2]); /* 66 */
- step(60_79, t, a, b, c, d, e, prep1.u32[3]); /* 67 */
- prep(prep1, W3, W0, W1, W2, K60_79);
- step(60_79, e, t, a, b, c, d, prep2.u32[0]); /* 68 */
- step(60_79, d, e, t, a, b, c, prep2.u32[1]); /* 69 */
- step(60_79, c, d, e, t, a, b, prep2.u32[2]); /* 70 */
- step(60_79, b, c, d, e, t, a, prep2.u32[3]); /* 71 */
-
+ /* no more input to prepare */
step(60_79, a, b, c, d, e, t, prep0.u32[0]); /* 72 */
step(60_79, t, a, b, c, d, e, prep0.u32[1]); /* 73 */
step(60_79, e, t, a, b, c, d, prep0.u32[2]); /* 74 */
@@ -324,4 +351,3 @@ extern "C" void botan_sha1_sse2_compress(u32bit H[5],
H[4] += c;
}
-}