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Incorporate sha2 code from sphlib 3.0 

Changes from upstream are limited to change #include paths so that I
can place header files and included "c" files in a subdirectory.  I
didn't keep the unit tests from sphlib but instead verified them by
running them manually.  I will implement the same tests using the
Pl_SHA2 pipeline except that sphlib's sha2 implementation supports
partial bytes, which I will not exercise in qpdf or our tests.
This commit is contained in:
Jay Berkenbilt 2012-12-29 07:06:25 -05:00
parent 3680922ae5
commit c9da66a018
7 changed files with 3668 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
README
View File

@ -48,6 +48,33 @@ obtained from
http://www.efgh.com/software/rijndael.htm
http://www.efgh.com/software/rijndael.txt
The embedded sha2 code comes from sphlib 3.0
http://www.saphir2.com/sphlib/
That code has the following license:
Copyright (c) 2007-2011 Projet RNRT SAPHIR
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Building on UNIX/Linux
======================

15
libqpdf/build.mk
View File

@ -54,18 +54,27 @@ SRCS_libqpdf = \
libqpdf/QUtil.cc \
libqpdf/RC4.cc \
libqpdf/qpdf-c.cc \
libqpdf/rijndael.cc
libqpdf/rijndael.cc \
libqpdf/sha2.c \
libqpdf/sha2big.c
# -----
OBJS_libqpdf = $(call src_to_lobj,$(SRCS_libqpdf))
CCSRCS_libqpdf = $(filter %.cc,$(SRCS_libqpdf))
CSRCS_libqpdf = $(filter %.c,$(SRCS_libqpdf))
CCOBJS_libqpdf = $(call src_to_lobj,$(CCSRCS_libqpdf))
COBJS_libqpdf = $(call c_src_to_lobj,$(CSRCS_libqpdf))
OBJS_libqpdf = $(CCOBJS_libqpdf) $(COBJS_libqpdf)
ifeq ($(GENDEPS),1)
-include $(call lobj_to_dep,$(OBJS_libqpdf))
endif
$(OBJS_libqpdf): libqpdf/$(OUTPUT_DIR)/%.$(LOBJ): libqpdf/%.cc
$(CCOBJS_libqpdf): libqpdf/$(OUTPUT_DIR)/%.$(LOBJ): libqpdf/%.cc
$(call libcompile,$<,$(INCLUDES_libqpdf))
$(COBJS_libqpdf): libqpdf/$(OUTPUT_DIR)/%.$(LOBJ): libqpdf/%.c
$(call c_libcompile,$<,$(INCLUDES_libqpdf))
# Last three arguments to makelib are CURRENT,REVISION,AGE.
#

690
libqpdf/sha2.c Normal file
View File

@ -0,0 +1,690 @@
/* $Id: sha2.c 227 2010-06-16 17:28:38Z tp $ */
/*
* SHA-224 / SHA-256 implementation.
*
* ==========================(LICENSE BEGIN)============================
*
* Copyright (c) 2007-2010 Projet RNRT SAPHIR
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* ===========================(LICENSE END)=============================
*
* @author Thomas Pornin <thomas.pornin@cryptolog.com>
*/
#include <stddef.h>
#include <string.h>
#include "sph/sph_sha2.h"
#if SPH_SMALL_FOOTPRINT && !defined SPH_SMALL_FOOTPRINT_SHA2
#define SPH_SMALL_FOOTPRINT_SHA2 1
#endif
#define CH(X, Y, Z) ((((Y) ^ (Z)) & (X)) ^ (Z))
#define MAJ(X, Y, Z) (((Y) & (Z)) | (((Y) | (Z)) & (X)))
#define ROTR SPH_ROTR32
#define BSG2_0(x) (ROTR(x, 2) ^ ROTR(x, 13) ^ ROTR(x, 22))
#define BSG2_1(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25))
#define SSG2_0(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ SPH_T32((x) >> 3))
#define SSG2_1(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ SPH_T32((x) >> 10))
static const sph_u32 H224[8] = {
SPH_C32(0xC1059ED8), SPH_C32(0x367CD507), SPH_C32(0x3070DD17),
SPH_C32(0xF70E5939), SPH_C32(0xFFC00B31), SPH_C32(0x68581511),
SPH_C32(0x64F98FA7), SPH_C32(0xBEFA4FA4)
};
static const sph_u32 H256[8] = {
SPH_C32(0x6A09E667), SPH_C32(0xBB67AE85), SPH_C32(0x3C6EF372),
SPH_C32(0xA54FF53A), SPH_C32(0x510E527F), SPH_C32(0x9B05688C),
SPH_C32(0x1F83D9AB), SPH_C32(0x5BE0CD19)
};
/*
* The SHA2_ROUND_BODY defines the body for a SHA-224 / SHA-256
* compression function implementation. The "in" parameter should
* evaluate, when applied to a numerical input parameter from 0 to 15,
* to an expression which yields the corresponding input block. The "r"
* parameter should evaluate to an array or pointer expression
* designating the array of 8 words which contains the input and output
* of the compression function.
*/
#if SPH_SMALL_FOOTPRINT_SHA2
static const sph_u32 K[64] = {
SPH_C32(0x428A2F98), SPH_C32(0x71374491),
SPH_C32(0xB5C0FBCF), SPH_C32(0xE9B5DBA5),
SPH_C32(0x3956C25B), SPH_C32(0x59F111F1),
SPH_C32(0x923F82A4), SPH_C32(0xAB1C5ED5),
SPH_C32(0xD807AA98), SPH_C32(0x12835B01),
SPH_C32(0x243185BE), SPH_C32(0x550C7DC3),
SPH_C32(0x72BE5D74), SPH_C32(0x80DEB1FE),
SPH_C32(0x9BDC06A7), SPH_C32(0xC19BF174),
SPH_C32(0xE49B69C1), SPH_C32(0xEFBE4786),
SPH_C32(0x0FC19DC6), SPH_C32(0x240CA1CC),
SPH_C32(0x2DE92C6F), SPH_C32(0x4A7484AA),
SPH_C32(0x5CB0A9DC), SPH_C32(0x76F988DA),
SPH_C32(0x983E5152), SPH_C32(0xA831C66D),
SPH_C32(0xB00327C8), SPH_C32(0xBF597FC7),
SPH_C32(0xC6E00BF3), SPH_C32(0xD5A79147),
SPH_C32(0x06CA6351), SPH_C32(0x14292967),
SPH_C32(0x27B70A85), SPH_C32(0x2E1B2138),
SPH_C32(0x4D2C6DFC), SPH_C32(0x53380D13),
SPH_C32(0x650A7354), SPH_C32(0x766A0ABB),
SPH_C32(0x81C2C92E), SPH_C32(0x92722C85),
SPH_C32(0xA2BFE8A1), SPH_C32(0xA81A664B),
SPH_C32(0xC24B8B70), SPH_C32(0xC76C51A3),
SPH_C32(0xD192E819), SPH_C32(0xD6990624),
SPH_C32(0xF40E3585), SPH_C32(0x106AA070),
SPH_C32(0x19A4C116), SPH_C32(0x1E376C08),
SPH_C32(0x2748774C), SPH_C32(0x34B0BCB5),
SPH_C32(0x391C0CB3), SPH_C32(0x4ED8AA4A),
SPH_C32(0x5B9CCA4F), SPH_C32(0x682E6FF3),
SPH_C32(0x748F82EE), SPH_C32(0x78A5636F),
SPH_C32(0x84C87814), SPH_C32(0x8CC70208),
SPH_C32(0x90BEFFFA), SPH_C32(0xA4506CEB),
SPH_C32(0xBEF9A3F7), SPH_C32(0xC67178F2)
};
#define SHA2_MEXP1(in, pc) do { \
W[pc] = in(pc); \
} while (0)
#define SHA2_MEXP2(in, pc) do { \
W[(pc) & 0x0F] = SPH_T32(SSG2_1(W[((pc) - 2) & 0x0F]) \
+ W[((pc) - 7) & 0x0F] \
+ SSG2_0(W[((pc) - 15) & 0x0F]) + W[(pc) & 0x0F]); \
} while (0)
#define SHA2_STEPn(n, a, b, c, d, e, f, g, h, in, pc) do { \
sph_u32 t1, t2; \
SHA2_MEXP ## n(in, pc); \
t1 = SPH_T32(h + BSG2_1(e) + CH(e, f, g) \
+ K[pcount + (pc)] + W[(pc) & 0x0F]); \
t2 = SPH_T32(BSG2_0(a) + MAJ(a, b, c)); \
d = SPH_T32(d + t1); \
h = SPH_T32(t1 + t2); \
} while (0)
#define SHA2_STEP1(a, b, c, d, e, f, g, h, in, pc) \
SHA2_STEPn(1, a, b, c, d, e, f, g, h, in, pc)
#define SHA2_STEP2(a, b, c, d, e, f, g, h, in, pc) \
SHA2_STEPn(2, a, b, c, d, e, f, g, h, in, pc)
#define SHA2_ROUND_BODY(in, r) do { \
sph_u32 A, B, C, D, E, F, G, H; \
sph_u32 W[16]; \
unsigned pcount; \
\
A = (r)[0]; \
B = (r)[1]; \
C = (r)[2]; \
D = (r)[3]; \
E = (r)[4]; \
F = (r)[5]; \
G = (r)[6]; \
H = (r)[7]; \
pcount = 0; \
SHA2_STEP1(A, B, C, D, E, F, G, H, in, 0); \
SHA2_STEP1(H, A, B, C, D, E, F, G, in, 1); \
SHA2_STEP1(G, H, A, B, C, D, E, F, in, 2); \
SHA2_STEP1(F, G, H, A, B, C, D, E, in, 3); \
SHA2_STEP1(E, F, G, H, A, B, C, D, in, 4); \
SHA2_STEP1(D, E, F, G, H, A, B, C, in, 5); \
SHA2_STEP1(C, D, E, F, G, H, A, B, in, 6); \
SHA2_STEP1(B, C, D, E, F, G, H, A, in, 7); \
SHA2_STEP1(A, B, C, D, E, F, G, H, in, 8); \
SHA2_STEP1(H, A, B, C, D, E, F, G, in, 9); \
SHA2_STEP1(G, H, A, B, C, D, E, F, in, 10); \
SHA2_STEP1(F, G, H, A, B, C, D, E, in, 11); \
SHA2_STEP1(E, F, G, H, A, B, C, D, in, 12); \
SHA2_STEP1(D, E, F, G, H, A, B, C, in, 13); \
SHA2_STEP1(C, D, E, F, G, H, A, B, in, 14); \
SHA2_STEP1(B, C, D, E, F, G, H, A, in, 15); \
for (pcount = 16; pcount < 64; pcount += 16) { \
SHA2_STEP2(A, B, C, D, E, F, G, H, in, 0); \
SHA2_STEP2(H, A, B, C, D, E, F, G, in, 1); \
SHA2_STEP2(G, H, A, B, C, D, E, F, in, 2); \
SHA2_STEP2(F, G, H, A, B, C, D, E, in, 3); \
SHA2_STEP2(E, F, G, H, A, B, C, D, in, 4); \
SHA2_STEP2(D, E, F, G, H, A, B, C, in, 5); \
SHA2_STEP2(C, D, E, F, G, H, A, B, in, 6); \
SHA2_STEP2(B, C, D, E, F, G, H, A, in, 7); \
SHA2_STEP2(A, B, C, D, E, F, G, H, in, 8); \
SHA2_STEP2(H, A, B, C, D, E, F, G, in, 9); \
SHA2_STEP2(G, H, A, B, C, D, E, F, in, 10); \
SHA2_STEP2(F, G, H, A, B, C, D, E, in, 11); \
SHA2_STEP2(E, F, G, H, A, B, C, D, in, 12); \
SHA2_STEP2(D, E, F, G, H, A, B, C, in, 13); \
SHA2_STEP2(C, D, E, F, G, H, A, B, in, 14); \
SHA2_STEP2(B, C, D, E, F, G, H, A, in, 15); \
} \
(r)[0] = SPH_T32((r)[0] + A); \
(r)[1] = SPH_T32((r)[1] + B); \
(r)[2] = SPH_T32((r)[2] + C); \
(r)[3] = SPH_T32((r)[3] + D); \
(r)[4] = SPH_T32((r)[4] + E); \
(r)[5] = SPH_T32((r)[5] + F); \
(r)[6] = SPH_T32((r)[6] + G); \
(r)[7] = SPH_T32((r)[7] + H); \
} while (0)
#else
#define SHA2_ROUND_BODY(in, r) do { \
sph_u32 A, B, C, D, E, F, G, H, T1, T2; \
sph_u32 W00, W01, W02, W03, W04, W05, W06, W07; \
sph_u32 W08, W09, W10, W11, W12, W13, W14, W15; \
\
A = (r)[0]; \
B = (r)[1]; \
C = (r)[2]; \
D = (r)[3]; \
E = (r)[4]; \
F = (r)[5]; \
G = (r)[6]; \
H = (r)[7]; \
W00 = in(0); \
T1 = SPH_T32(H + BSG2_1(E) + CH(E, F, G) \
+ SPH_C32(0x428A2F98) + W00); \
T2 = SPH_T32(BSG2_0(A) + MAJ(A, B, C)); \
D = SPH_T32(D + T1); \
H = SPH_T32(T1 + T2); \
W01 = in(1); \
T1 = SPH_T32(G + BSG2_1(D) + CH(D, E, F) \
+ SPH_C32(0x71374491) + W01); \
T2 = SPH_T32(BSG2_0(H) + MAJ(H, A, B)); \
C = SPH_T32(C + T1); \
G = SPH_T32(T1 + T2); \
W02 = in(2); \
T1 = SPH_T32(F + BSG2_1(C) + CH(C, D, E) \
+ SPH_C32(0xB5C0FBCF) + W02); \
T2 = SPH_T32(BSG2_0(G) + MAJ(G, H, A)); \
B = SPH_T32(B + T1); \
F = SPH_T32(T1 + T2); \
W03 = in(3); \
T1 = SPH_T32(E + BSG2_1(B) + CH(B, C, D) \
+ SPH_C32(0xE9B5DBA5) + W03); \
T2 = SPH_T32(BSG2_0(F) + MAJ(F, G, H)); \
A = SPH_T32(A + T1); \
E = SPH_T32(T1 + T2); \
W04 = in(4); \
T1 = SPH_T32(D + BSG2_1(A) + CH(A, B, C) \
+ SPH_C32(0x3956C25B) + W04); \
T2 = SPH_T32(BSG2_0(E) + MAJ(E, F, G)); \
H = SPH_T32(H + T1); \
D = SPH_T32(T1 + T2); \
W05 = in(5); \
T1 = SPH_T32(C + BSG2_1(H) + CH(H, A, B) \
+ SPH_C32(0x59F111F1) + W05); \
T2 = SPH_T32(BSG2_0(D) + MAJ(D, E, F)); \
G = SPH_T32(G + T1); \
C = SPH_T32(T1 + T2); \
W06 = in(6); \
T1 = SPH_T32(B + BSG2_1(G) + CH(G, H, A) \
+ SPH_C32(0x923F82A4) + W06); \
T2 = SPH_T32(BSG2_0(C) + MAJ(C, D, E)); \
F = SPH_T32(F + T1); \
B = SPH_T32(T1 + T2); \
W07 = in(7); \
T1 = SPH_T32(A + BSG2_1(F) + CH(F, G, H) \
+ SPH_C32(0xAB1C5ED5) + W07); \
T2 = SPH_T32(BSG2_0(B) + MAJ(B, C, D)); \
E = SPH_T32(E + T1); \
A = SPH_T32(T1 + T2); \
W08 = in(8); \
T1 = SPH_T32(H + BSG2_1(E) + CH(E, F, G) \
+ SPH_C32(0xD807AA98) + W08); \
T2 = SPH_T32(BSG2_0(A) + MAJ(A, B, C)); \
D = SPH_T32(D + T1); \
H = SPH_T32(T1 + T2); \
W09 = in(9); \
T1 = SPH_T32(G + BSG2_1(D) + CH(D, E, F) \
+ SPH_C32(0x12835B01) + W09); \
T2 = SPH_T32(BSG2_0(H) + MAJ(H, A, B)); \
C = SPH_T32(C + T1); \
G = SPH_T32(T1 + T2); \
W10 = in(10); \
T1 = SPH_T32(F + BSG2_1(C) + CH(C, D, E) \
+ SPH_C32(0x243185BE) + W10); \
T2 = SPH_T32(BSG2_0(G) + MAJ(G, H, A)); \
B = SPH_T32(B + T1); \
F = SPH_T32(T1 + T2); \
W11 = in(11); \
T1 = SPH_T32(E + BSG2_1(B) + CH(B, C, D) \
+ SPH_C32(0x550C7DC3) + W11); \
T2 = SPH_T32(BSG2_0(F) + MAJ(F, G, H)); \
A = SPH_T32(A + T1); \
E = SPH_T32(T1 + T2); \
W12 = in(12); \
T1 = SPH_T32(D + BSG2_1(A) + CH(A, B, C) \
+ SPH_C32(0x72BE5D74) + W12); \
T2 = SPH_T32(BSG2_0(E) + MAJ(E, F, G)); \
H = SPH_T32(H + T1); \
D = SPH_T32(T1 + T2); \
W13 = in(13); \
T1 = SPH_T32(C + BSG2_1(H) + CH(H, A, B) \
+ SPH_C32(0x80DEB1FE) + W13); \
T2 = SPH_T32(BSG2_0(D) + MAJ(D, E, F)); \
G = SPH_T32(G + T1); \
C = SPH_T32(T1 + T2); \
W14 = in(14); \
T1 = SPH_T32(B + BSG2_1(G) + CH(G, H, A) \
+ SPH_C32(0x9BDC06A7) + W14); \
T2 = SPH_T32(BSG2_0(C) + MAJ(C, D, E)); \
F = SPH_T32(F + T1); \
B = SPH_T32(T1 + T2); \
W15 = in(15); \
T1 = SPH_T32(A + BSG2_1(F) + CH(F, G, H) \
+ SPH_C32(0xC19BF174) + W15); \
T2 = SPH_T32(BSG2_0(B) + MAJ(B, C, D)); \
E = SPH_T32(E + T1); \
A = SPH_T32(T1 + T2); \
W00 = SPH_T32(SSG2_1(W14) + W09 + SSG2_0(W01) + W00); \
T1 = SPH_T32(H + BSG2_1(E) + CH(E, F, G) \
+ SPH_C32(0xE49B69C1) + W00); \
T2 = SPH_T32(BSG2_0(A) + MAJ(A, B, C)); \
D = SPH_T32(D + T1); \
H = SPH_T32(T1 + T2); \
W01 = SPH_T32(SSG2_1(W15) + W10 + SSG2_0(W02) + W01); \
T1 = SPH_T32(G + BSG2_1(D) + CH(D, E, F) \
+ SPH_C32(0xEFBE4786) + W01); \
T2 = SPH_T32(BSG2_0(H) + MAJ(H, A, B)); \
C = SPH_T32(C + T1); \
G = SPH_T32(T1 + T2); \
W02 = SPH_T32(SSG2_1(W00) + W11 + SSG2_0(W03) + W02); \
T1 = SPH_T32(F + BSG2_1(C) + CH(C, D, E) \
+ SPH_C32(0x0FC19DC6) + W02); \
T2 = SPH_T32(BSG2_0(G) + MAJ(G, H, A)); \
B = SPH_T32(B + T1); \
F = SPH_T32(T1 + T2); \
W03 = SPH_T32(SSG2_1(W01) + W12 + SSG2_0(W04) + W03); \
T1 = SPH_T32(E + BSG2_1(B) + CH(B, C, D) \
+ SPH_C32(0x240CA1CC) + W03); \
T2 = SPH_T32(BSG2_0(F) + MAJ(F, G, H)); \
A = SPH_T32(A + T1); \
E = SPH_T32(T1 + T2); \
W04 = SPH_T32(SSG2_1(W02) + W13 + SSG2_0(W05) + W04); \
T1 = SPH_T32(D + BSG2_1(A) + CH(A, B, C) \
+ SPH_C32(0x2DE92C6F) + W04); \
T2 = SPH_T32(BSG2_0(E) + MAJ(E, F, G)); \
H = SPH_T32(H + T1); \
D = SPH_T32(T1 + T2); \
W05 = SPH_T32(SSG2_1(W03) + W14 + SSG2_0(W06) + W05); \
T1 = SPH_T32(C + BSG2_1(H) + CH(H, A, B) \
+ SPH_C32(0x4A7484AA) + W05); \
T2 = SPH_T32(BSG2_0(D) + MAJ(D, E, F)); \
G = SPH_T32(G + T1); \
C = SPH_T32(T1 + T2); \
W06 = SPH_T32(SSG2_1(W04) + W15 + SSG2_0(W07) + W06); \
T1 = SPH_T32(B + BSG2_1(G) + CH(G, H, A) \
+ SPH_C32(0x5CB0A9DC) + W06); \
T2 = SPH_T32(BSG2_0(C) + MAJ(C, D, E)); \
F = SPH_T32(F + T1); \
B = SPH_T32(T1 + T2); \
W07 = SPH_T32(SSG2_1(W05) + W00 + SSG2_0(W08) + W07); \
T1 = SPH_T32(A + BSG2_1(F) + CH(F, G, H) \
+ SPH_C32(0x76F988DA) + W07); \
T2 = SPH_T32(BSG2_0(B) + MAJ(B, C, D)); \
E = SPH_T32(E + T1); \
A = SPH_T32(T1 + T2); \
W08 = SPH_T32(SSG2_1(W06) + W01 + SSG2_0(W09) + W08); \
T1 = SPH_T32(H + BSG2_1(E) + CH(E, F, G) \
+ SPH_C32(0x983E5152) + W08); \
T2 = SPH_T32(BSG2_0(A) + MAJ(A, B, C)); \
D = SPH_T32(D + T1); \
H = SPH_T32(T1 + T2); \
W09 = SPH_T32(SSG2_1(W07) + W02 + SSG2_0(W10) + W09); \
T1 = SPH_T32(G + BSG2_1(D) + CH(D, E, F) \
+ SPH_C32(0xA831C66D) + W09); \
T2 = SPH_T32(BSG2_0(H) + MAJ(H, A, B)); \
C = SPH_T32(C + T1); \
G = SPH_T32(T1 + T2); \
W10 = SPH_T32(SSG2_1(W08) + W03 + SSG2_0(W11) + W10); \
T1 = SPH_T32(F + BSG2_1(C) + CH(C, D, E) \
+ SPH_C32(0xB00327C8) + W10); \
T2 = SPH_T32(BSG2_0(G) + MAJ(G, H, A)); \
B = SPH_T32(B + T1); \
F = SPH_T32(T1 + T2); \
W11 = SPH_T32(SSG2_1(W09) + W04 + SSG2_0(W12) + W11); \
T1 = SPH_T32(E + BSG2_1(B) + CH(B, C, D) \
+ SPH_C32(0xBF597FC7) + W11); \
T2 = SPH_T32(BSG2_0(F) + MAJ(F, G, H)); \
A = SPH_T32(A + T1); \
E = SPH_T32(T1 + T2); \
W12 = SPH_T32(SSG2_1(W10) + W05 + SSG2_0(W13) + W12); \
T1 = SPH_T32(D + BSG2_1(A) + CH(A, B, C) \
+ SPH_C32(0xC6E00BF3) + W12); \
T2 = SPH_T32(BSG2_0(E) + MAJ(E, F, G)); \
H = SPH_T32(H + T1); \
D = SPH_T32(T1 + T2); \
W13 = SPH_T32(SSG2_1(W11) + W06 + SSG2_0(W14) + W13); \
T1 = SPH_T32(C + BSG2_1(H) + CH(H, A, B) \
+ SPH_C32(0xD5A79147) + W13); \
T2 = SPH_T32(BSG2_0(D) + MAJ(D, E, F)); \
G = SPH_T32(G + T1); \
C = SPH_T32(T1 + T2); \
W14 = SPH_T32(SSG2_1(W12) + W07 + SSG2_0(W15) + W14); \
T1 = SPH_T32(B + BSG2_1(G) + CH(G, H, A) \
+ SPH_C32(0x06CA6351) + W14); \
T2 = SPH_T32(BSG2_0(C) + MAJ(C, D, E)); \
F = SPH_T32(F + T1); \
B = SPH_T32(T1 + T2); \
W15 = SPH_T32(SSG2_1(W13) + W08 + SSG2_0(W00) + W15); \
T1 = SPH_T32(A + BSG2_1(F) + CH(F, G, H) \
+ SPH_C32(0x14292967) + W15); \
T2 = SPH_T32(BSG2_0(B) + MAJ(B, C, D)); \
E = SPH_T32(E + T1); \
A = SPH_T32(T1 + T2); \
W00 = SPH_T32(SSG2_1(W14) + W09 + SSG2_0(W01) + W00); \
T1 = SPH_T32(H + BSG2_1(E) + CH(E, F, G) \
+ SPH_C32(0x27B70A85) + W00); \
T2 = SPH_T32(BSG2_0(A) + MAJ(A, B, C)); \
D = SPH_T32(D + T1); \
H = SPH_T32(T1 + T2); \
W01 = SPH_T32(SSG2_1(W15) + W10 + SSG2_0(W02) + W01); \
T1 = SPH_T32(G + BSG2_1(D) + CH(D, E, F) \
+ SPH_C32(0x2E1B2138) + W01); \
T2 = SPH_T32(BSG2_0(H) + MAJ(H, A, B)); \
C = SPH_T32(C + T1); \
G = SPH_T32(T1 + T2); \
W02 = SPH_T32(SSG2_1(W00) + W11 + SSG2_0(W03) + W02); \
T1 = SPH_T32(F + BSG2_1(C) + CH(C, D, E) \
+ SPH_C32(0x4D2C6DFC) + W02); \
T2 = SPH_T32(BSG2_0(G) + MAJ(G, H, A)); \
B = SPH_T32(B + T1); \
F = SPH_T32(T1 + T2); \
W03 = SPH_T32(SSG2_1(W01) + W12 + SSG2_0(W04) + W03); \
T1 = SPH_T32(E + BSG2_1(B) + CH(B, C, D) \
+ SPH_C32(0x53380D13) + W03); \
T2 = SPH_T32(BSG2_0(F) + MAJ(F, G, H)); \
A = SPH_T32(A + T1); \
E = SPH_T32(T1 + T2); \
W04 = SPH_T32(SSG2_1(W02) + W13 + SSG2_0(W05) + W04); \
T1 = SPH_T32(D + BSG2_1(A) + CH(A, B, C) \
+ SPH_C32(0x650A7354) + W04); \
T2 = SPH_T32(BSG2_0(E) + MAJ(E, F, G)); \
H = SPH_T32(H + T1); \
D = SPH_T32(T1 + T2); \
W05 = SPH_T32(SSG2_1(W03) + W14 + SSG2_0(W06) + W05); \
T1 = SPH_T32(C + BSG2_1(H) + CH(H, A, B) \
+ SPH_C32(0x766A0ABB) + W05); \
T2 = SPH_T32(BSG2_0(D) + MAJ(D, E, F)); \
G = SPH_T32(G + T1); \
C = SPH_T32(T1 + T2); \
W06 = SPH_T32(SSG2_1(W04) + W15 + SSG2_0(W07) + W06); \
T1 = SPH_T32(B + BSG2_1(G) + CH(G, H, A) \
+ SPH_C32(0x81C2C92E) + W06); \
T2 = SPH_T32(BSG2_0(C) + MAJ(C, D, E)); \
F = SPH_T32(F + T1); \
B = SPH_T32(T1 + T2); \
W07 = SPH_T32(SSG2_1(W05) + W00 + SSG2_0(W08) + W07); \
T1 = SPH_T32(A + BSG2_1(F) + CH(F, G, H) \
+ SPH_C32(0x92722C85) + W07); \
T2 = SPH_T32(BSG2_0(B) + MAJ(B, C, D)); \
E = SPH_T32(E + T1); \
A = SPH_T32(T1 + T2); \
W08 = SPH_T32(SSG2_1(W06) + W01 + SSG2_0(W09) + W08); \
T1 = SPH_T32(H + BSG2_1(E) + CH(E, F, G) \
+ SPH_C32(0xA2BFE8A1) + W08); \
T2 = SPH_T32(BSG2_0(A) + MAJ(A, B, C)); \
D = SPH_T32(D + T1); \
H = SPH_T32(T1 + T2); \
W09 = SPH_T32(SSG2_1(W07) + W02 + SSG2_0(W10) + W09); \
T1 = SPH_T32(G + BSG2_1(D) + CH(D, E, F) \
+ SPH_C32(0xA81A664B) + W09); \
T2 = SPH_T32(BSG2_0(H) + MAJ(H, A, B)); \
C = SPH_T32(C + T1); \
G = SPH_T32(T1 + T2); \
W10 = SPH_T32(SSG2_1(W08) + W03 + SSG2_0(W11) + W10); \
T1 = SPH_T32(F + BSG2_1(C) + CH(C, D, E) \
+ SPH_C32(0xC24B8B70) + W10); \
T2 = SPH_T32(BSG2_0(G) + MAJ(G, H, A)); \
B = SPH_T32(B + T1); \
F = SPH_T32(T1 + T2); \
W11 = SPH_T32(SSG2_1(W09) + W04 + SSG2_0(W12) + W11); \
T1 = SPH_T32(E + BSG2_1(B) + CH(B, C, D) \
+ SPH_C32(0xC76C51A3) + W11); \
T2 = SPH_T32(BSG2_0(F) + MAJ(F, G, H)); \
A = SPH_T32(A + T1); \
E = SPH_T32(T1 + T2); \
W12 = SPH_T32(SSG2_1(W10) + W05 + SSG2_0(W13) + W12); \
T1 = SPH_T32(D + BSG2_1(A) + CH(A, B, C) \
+ SPH_C32(0xD192E819) + W12); \
T2 = SPH_T32(BSG2_0(E) + MAJ(E, F, G)); \
H = SPH_T32(H + T1); \
D = SPH_T32(T1 + T2); \
W13 = SPH_T32(SSG2_1(W11) + W06 + SSG2_0(W14) + W13); \
T1 = SPH_T32(C + BSG2_1(H) + CH(H, A, B) \
+ SPH_C32(0xD6990624) + W13); \
T2 = SPH_T32(BSG2_0(D) + MAJ(D, E, F)); \
G = SPH_T32(G + T1); \
C = SPH_T32(T1 + T2); \
W14 = SPH_T32(SSG2_1(W12) + W07 + SSG2_0(W15) + W14); \
T1 = SPH_T32(B + BSG2_1(G) + CH(G, H, A) \
+ SPH_C32(0xF40E3585) + W14); \
T2 = SPH_T32(BSG2_0(C) + MAJ(C, D, E)); \
F = SPH_T32(F + T1); \
B = SPH_T32(T1 + T2); \
W15 = SPH_T32(SSG2_1(W13) + W08 + SSG2_0(W00) + W15); \
T1 = SPH_T32(A + BSG2_1(F) + CH(F, G, H) \
+ SPH_C32(0x106AA070) + W15); \
T2 = SPH_T32(BSG2_0(B) + MAJ(B, C, D)); \
E = SPH_T32(E + T1); \
A = SPH_T32(T1 + T2); \
W00 = SPH_T32(SSG2_1(W14) + W09 + SSG2_0(W01) + W00); \
T1 = SPH_T32(H + BSG2_1(E) + CH(E, F, G) \
+ SPH_C32(0x19A4C116) + W00); \
T2 = SPH_T32(BSG2_0(A) + MAJ(A, B, C)); \
D = SPH_T32(D + T1); \
H = SPH_T32(T1 + T2); \
W01 = SPH_T32(SSG2_1(W15) + W10 + SSG2_0(W02) + W01); \
T1 = SPH_T32(G + BSG2_1(D) + CH(D, E, F) \
+ SPH_C32(0x1E376C08) + W01); \
T2 = SPH_T32(BSG2_0(H) + MAJ(H, A, B)); \
C = SPH_T32(C + T1); \
G = SPH_T32(T1 + T2); \
W02 = SPH_T32(SSG2_1(W00) + W11 + SSG2_0(W03) + W02); \
T1 = SPH_T32(F + BSG2_1(C) + CH(C, D, E) \
+ SPH_C32(0x2748774C) + W02); \
T2 = SPH_T32(BSG2_0(G) + MAJ(G, H, A)); \
B = SPH_T32(B + T1); \
F = SPH_T32(T1 + T2); \
W03 = SPH_T32(SSG2_1(W01) + W12 + SSG2_0(W04) + W03); \
T1 = SPH_T32(E + BSG2_1(B) + CH(B, C, D) \
+ SPH_C32(0x34B0BCB5) + W03); \
T2 = SPH_T32(BSG2_0(F) + MAJ(F, G, H)); \
A = SPH_T32(A + T1); \
E = SPH_T32(T1 + T2); \
W04 = SPH_T32(SSG2_1(W02) + W13 + SSG2_0(W05) + W04); \
T1 = SPH_T32(D + BSG2_1(A) + CH(A, B, C) \
+ SPH_C32(0x391C0CB3) + W04); \
T2 = SPH_T32(BSG2_0(E) + MAJ(E, F, G)); \
H = SPH_T32(H + T1); \
D = SPH_T32(T1 + T2); \
W05 = SPH_T32(SSG2_1(W03) + W14 + SSG2_0(W06) + W05); \
T1 = SPH_T32(C + BSG2_1(H) + CH(H, A, B) \
+ SPH_C32(0x4ED8AA4A) + W05); \
T2 = SPH_T32(BSG2_0(D) + MAJ(D, E, F)); \
G = SPH_T32(G + T1); \
C = SPH_T32(T1 + T2); \
W06 = SPH_T32(SSG2_1(W04) + W15 + SSG2_0(W07) + W06); \
T1 = SPH_T32(B + BSG2_1(G) + CH(G, H, A) \
+ SPH_C32(0x5B9CCA4F) + W06); \
T2 = SPH_T32(BSG2_0(C) + MAJ(C, D, E)); \
F = SPH_T32(F + T1); \
B = SPH_T32(T1 + T2); \
W07 = SPH_T32(SSG2_1(W05) + W00 + SSG2_0(W08) + W07); \
T1 = SPH_T32(A + BSG2_1(F) + CH(F, G, H) \
+ SPH_C32(0x682E6FF3) + W07); \
T2 = SPH_T32(BSG2_0(B) + MAJ(B, C, D)); \
E = SPH_T32(E + T1); \
A = SPH_T32(T1 + T2); \
W08 = SPH_T32(SSG2_1(W06) + W01 + SSG2_0(W09) + W08); \
T1 = SPH_T32(H + BSG2_1(E) + CH(E, F, G) \
+ SPH_C32(0x748F82EE) + W08); \
T2 = SPH_T32(BSG2_0(A) + MAJ(A, B, C)); \
D = SPH_T32(D + T1); \
H = SPH_T32(T1 + T2); \
W09 = SPH_T32(SSG2_1(W07) + W02 + SSG2_0(W10) + W09); \
T1 = SPH_T32(G + BSG2_1(D) + CH(D, E, F) \
+ SPH_C32(0x78A5636F) + W09); \
T2 = SPH_T32(BSG2_0(H) + MAJ(H, A, B)); \
C = SPH_T32(C + T1); \
G = SPH_T32(T1 + T2); \
W10 = SPH_T32(SSG2_1(W08) + W03 + SSG2_0(W11) + W10); \
T1 = SPH_T32(F + BSG2_1(C) + CH(C, D, E) \
+ SPH_C32(0x84C87814) + W10); \
T2 = SPH_T32(BSG2_0(G) + MAJ(G, H, A)); \
B = SPH_T32(B + T1); \
F = SPH_T32(T1 + T2); \
W11 = SPH_T32(SSG2_1(W09) + W04 + SSG2_0(W12) + W11); \
T1 = SPH_T32(E + BSG2_1(B) + CH(B, C, D) \
+ SPH_C32(0x8CC70208) + W11); \
T2 = SPH_T32(BSG2_0(F) + MAJ(F, G, H)); \
A = SPH_T32(A + T1); \
E = SPH_T32(T1 + T2); \
W12 = SPH_T32(SSG2_1(W10) + W05 + SSG2_0(W13) + W12); \
T1 = SPH_T32(D + BSG2_1(A) + CH(A, B, C) \
+ SPH_C32(0x90BEFFFA) + W12); \
T2 = SPH_T32(BSG2_0(E) + MAJ(E, F, G)); \
H = SPH_T32(H + T1); \
D = SPH_T32(T1 + T2); \
W13 = SPH_T32(SSG2_1(W11) + W06 + SSG2_0(W14) + W13); \
T1 = SPH_T32(C + BSG2_1(H) + CH(H, A, B) \
+ SPH_C32(0xA4506CEB) + W13); \
T2 = SPH_T32(BSG2_0(D) + MAJ(D, E, F)); \
G = SPH_T32(G + T1); \
C = SPH_T32(T1 + T2); \
W14 = SPH_T32(SSG2_1(W12) + W07 + SSG2_0(W15) + W14); \
T1 = SPH_T32(B + BSG2_1(G) + CH(G, H, A) \
+ SPH_C32(0xBEF9A3F7) + W14); \
T2 = SPH_T32(BSG2_0(C) + MAJ(C, D, E)); \
F = SPH_T32(F + T1); \
B = SPH_T32(T1 + T2); \
W15 = SPH_T32(SSG2_1(W13) + W08 + SSG2_0(W00) + W15); \
T1 = SPH_T32(A + BSG2_1(F) + CH(F, G, H) \
+ SPH_C32(0xC67178F2) + W15); \
T2 = SPH_T32(BSG2_0(B) + MAJ(B, C, D)); \
E = SPH_T32(E + T1); \
A = SPH_T32(T1 + T2); \
(r)[0] = SPH_T32((r)[0] + A); \
(r)[1] = SPH_T32((r)[1] + B); \
(r)[2] = SPH_T32((r)[2] + C); \
(r)[3] = SPH_T32((r)[3] + D); \
(r)[4] = SPH_T32((r)[4] + E); \
(r)[5] = SPH_T32((r)[5] + F); \
(r)[6] = SPH_T32((r)[6] + G); \
(r)[7] = SPH_T32((r)[7] + H); \
} while (0)
#endif
/*
* One round of SHA-224 / SHA-256. The data must be aligned for 32-bit access.
*/
static void
sha2_round(const unsigned char *data, sph_u32 r[8])
{
#define SHA2_IN(x) sph_dec32be_aligned(data + (4 * (x)))
SHA2_ROUND_BODY(SHA2_IN, r);
#undef SHA2_IN
}
/* see sph_sha2.h */
void
sph_sha224_init(void *cc)
{
sph_sha224_context *sc;
sc = cc;
memcpy(sc->val, H224, sizeof H224);
#if SPH_64
sc->count = 0;
#else
sc->count_high = sc->count_low = 0;
#endif
}
/* see sph_sha2.h */
void
sph_sha256_init(void *cc)
{
sph_sha256_context *sc;
sc = cc;
memcpy(sc->val, H256, sizeof H256);
#if SPH_64
sc->count = 0;
#else
sc->count_high = sc->count_low = 0;
#endif
}
#define RFUN sha2_round
#define HASH sha224
#define BE32 1
#include "sph/md_helper.c"
/* see sph_sha2.h */
void
sph_sha224_close(void *cc, void *dst)
{
sha224_close(cc, dst, 7);
sph_sha224_init(cc);
}
/* see sph_sha2.h */
void
sph_sha224_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst)
{
sha224_addbits_and_close(cc, ub, n, dst, 7);
sph_sha224_init(cc);
}
/* see sph_sha2.h */
void
sph_sha256_close(void *cc, void *dst)
{
sha224_close(cc, dst, 8);
sph_sha256_init(cc);
}
/* see sph_sha2.h */
void
sph_sha256_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst)
{
sha224_addbits_and_close(cc, ub, n, dst, 8);
sph_sha256_init(cc);
}
/* see sph_sha2.h */
void
sph_sha224_comp(const sph_u32 msg[16], sph_u32 val[8])
{
#define SHA2_IN(x) msg[x]
SHA2_ROUND_BODY(SHA2_IN, val);
#undef SHA2_IN
}

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@ -0,0 +1,247 @@
/* $Id: sha2big.c 216 2010-06-08 09:46:57Z tp $ */
/*
* SHA-384 / SHA-512 implementation.
*
* ==========================(LICENSE BEGIN)============================
*
* Copyright (c) 2007-2010 Projet RNRT SAPHIR
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* ===========================(LICENSE END)=============================
*
* @author Thomas Pornin <thomas.pornin@cryptolog.com>
*/
#include <stddef.h>
#include <string.h>
#include "sph/sph_sha2.h"
#if SPH_64
#define CH(X, Y, Z) ((((Y) ^ (Z)) & (X)) ^ (Z))
#define MAJ(X, Y, Z) (((X) & (Y)) | (((X) | (Y)) & (Z)))
#define ROTR64 SPH_ROTR64
#define BSG5_0(x) (ROTR64(x, 28) ^ ROTR64(x, 34) ^ ROTR64(x, 39))
#define BSG5_1(x) (ROTR64(x, 14) ^ ROTR64(x, 18) ^ ROTR64(x, 41))
#define SSG5_0(x) (ROTR64(x, 1) ^ ROTR64(x, 8) ^ SPH_T64((x) >> 7))
#define SSG5_1(x) (ROTR64(x, 19) ^ ROTR64(x, 61) ^ SPH_T64((x) >> 6))
static const sph_u64 K512[80] = {
SPH_C64(0x428A2F98D728AE22), SPH_C64(0x7137449123EF65CD),
SPH_C64(0xB5C0FBCFEC4D3B2F), SPH_C64(0xE9B5DBA58189DBBC),
SPH_C64(0x3956C25BF348B538), SPH_C64(0x59F111F1B605D019),
SPH_C64(0x923F82A4AF194F9B), SPH_C64(0xAB1C5ED5DA6D8118),
SPH_C64(0xD807AA98A3030242), SPH_C64(0x12835B0145706FBE),
SPH_C64(0x243185BE4EE4B28C), SPH_C64(0x550C7DC3D5FFB4E2),
SPH_C64(0x72BE5D74F27B896F), SPH_C64(0x80DEB1FE3B1696B1),
SPH_C64(0x9BDC06A725C71235), SPH_C64(0xC19BF174CF692694),
SPH_C64(0xE49B69C19EF14AD2), SPH_C64(0xEFBE4786384F25E3),
SPH_C64(0x0FC19DC68B8CD5B5), SPH_C64(0x240CA1CC77AC9C65),
SPH_C64(0x2DE92C6F592B0275), SPH_C64(0x4A7484AA6EA6E483),
SPH_C64(0x5CB0A9DCBD41FBD4), SPH_C64(0x76F988DA831153B5),
SPH_C64(0x983E5152EE66DFAB), SPH_C64(0xA831C66D2DB43210),
SPH_C64(0xB00327C898FB213F), SPH_C64(0xBF597FC7BEEF0EE4),
SPH_C64(0xC6E00BF33DA88FC2), SPH_C64(0xD5A79147930AA725),
SPH_C64(0x06CA6351E003826F), SPH_C64(0x142929670A0E6E70),
SPH_C64(0x27B70A8546D22FFC), SPH_C64(0x2E1B21385C26C926),
SPH_C64(0x4D2C6DFC5AC42AED), SPH_C64(0x53380D139D95B3DF),
SPH_C64(0x650A73548BAF63DE), SPH_C64(0x766A0ABB3C77B2A8),
SPH_C64(0x81C2C92E47EDAEE6), SPH_C64(0x92722C851482353B),
SPH_C64(0xA2BFE8A14CF10364), SPH_C64(0xA81A664BBC423001),
SPH_C64(0xC24B8B70D0F89791), SPH_C64(0xC76C51A30654BE30),
SPH_C64(0xD192E819D6EF5218), SPH_C64(0xD69906245565A910),
SPH_C64(0xF40E35855771202A), SPH_C64(0x106AA07032BBD1B8),
SPH_C64(0x19A4C116B8D2D0C8), SPH_C64(0x1E376C085141AB53),
SPH_C64(0x2748774CDF8EEB99), SPH_C64(0x34B0BCB5E19B48A8),
SPH_C64(0x391C0CB3C5C95A63), SPH_C64(0x4ED8AA4AE3418ACB),
SPH_C64(0x5B9CCA4F7763E373), SPH_C64(0x682E6FF3D6B2B8A3),
SPH_C64(0x748F82EE5DEFB2FC), SPH_C64(0x78A5636F43172F60),
SPH_C64(0x84C87814A1F0AB72), SPH_C64(0x8CC702081A6439EC),
SPH_C64(0x90BEFFFA23631E28), SPH_C64(0xA4506CEBDE82BDE9),
SPH_C64(0xBEF9A3F7B2C67915), SPH_C64(0xC67178F2E372532B),
SPH_C64(0xCA273ECEEA26619C), SPH_C64(0xD186B8C721C0C207),
SPH_C64(0xEADA7DD6CDE0EB1E), SPH_C64(0xF57D4F7FEE6ED178),
SPH_C64(0x06F067AA72176FBA), SPH_C64(0x0A637DC5A2C898A6),
SPH_C64(0x113F9804BEF90DAE), SPH_C64(0x1B710B35131C471B),
SPH_C64(0x28DB77F523047D84), SPH_C64(0x32CAAB7B40C72493),
SPH_C64(0x3C9EBE0A15C9BEBC), SPH_C64(0x431D67C49C100D4C),
SPH_C64(0x4CC5D4BECB3E42B6), SPH_C64(0x597F299CFC657E2A),
SPH_C64(0x5FCB6FAB3AD6FAEC), SPH_C64(0x6C44198C4A475817)
};
static const sph_u64 H384[8] = {
SPH_C64(0xCBBB9D5DC1059ED8), SPH_C64(0x629A292A367CD507),
SPH_C64(0x9159015A3070DD17), SPH_C64(0x152FECD8F70E5939),
SPH_C64(0x67332667FFC00B31), SPH_C64(0x8EB44A8768581511),
SPH_C64(0xDB0C2E0D64F98FA7), SPH_C64(0x47B5481DBEFA4FA4)
};
static const sph_u64 H512[8] = {
SPH_C64(0x6A09E667F3BCC908), SPH_C64(0xBB67AE8584CAA73B),
SPH_C64(0x3C6EF372FE94F82B), SPH_C64(0xA54FF53A5F1D36F1),
SPH_C64(0x510E527FADE682D1), SPH_C64(0x9B05688C2B3E6C1F),
SPH_C64(0x1F83D9ABFB41BD6B), SPH_C64(0x5BE0CD19137E2179)
};
/*
* This macro defines the body for a SHA-384 / SHA-512 compression function
* implementation. The "in" parameter should evaluate, when applied to a
* numerical input parameter from 0 to 15, to an expression which yields
* the corresponding input block. The "r" parameter should evaluate to
* an array or pointer expression designating the array of 8 words which
* contains the input and output of the compression function.
*
* SHA-512 is hard for the compiler. If the loop is completely unrolled,
* then the code will be quite huge (possibly more than 100 kB), and the
* performance will be degraded due to cache misses on the code. We
* unroll only eight steps, which avoids all needless copies when
* 64-bit registers are swapped.
*/
#define SHA3_STEP(A, B, C, D, E, F, G, H, i) do { \
sph_u64 T1, T2; \
T1 = SPH_T64(H + BSG5_1(E) + CH(E, F, G) + K512[i] + W[i]); \
T2 = SPH_T64(BSG5_0(A) + MAJ(A, B, C)); \
D = SPH_T64(D + T1); \
H = SPH_T64(T1 + T2); \
} while (0)
#define SHA3_ROUND_BODY(in, r) do { \
int i; \
sph_u64 A, B, C, D, E, F, G, H; \
sph_u64 W[80]; \
\
for (i = 0; i < 16; i ++) \
W[i] = in(i); \
for (i = 16; i < 80; i ++) \
W[i] = SPH_T64(SSG5_1(W[i - 2]) + W[i - 7] \
+ SSG5_0(W[i - 15]) + W[i - 16]); \
A = (r)[0]; \
B = (r)[1]; \
C = (r)[2]; \
D = (r)[3]; \
E = (r)[4]; \
F = (r)[5]; \
G = (r)[6]; \
H = (r)[7]; \
for (i = 0; i < 80; i += 8) { \
SHA3_STEP(A, B, C, D, E, F, G, H, i + 0); \
SHA3_STEP(H, A, B, C, D, E, F, G, i + 1); \
SHA3_STEP(G, H, A, B, C, D, E, F, i + 2); \
SHA3_STEP(F, G, H, A, B, C, D, E, i + 3); \
SHA3_STEP(E, F, G, H, A, B, C, D, i + 4); \
SHA3_STEP(D, E, F, G, H, A, B, C, i + 5); \
SHA3_STEP(C, D, E, F, G, H, A, B, i + 6); \
SHA3_STEP(B, C, D, E, F, G, H, A, i + 7); \
} \
(r)[0] = SPH_T64((r)[0] + A); \
(r)[1] = SPH_T64((r)[1] + B); \
(r)[2] = SPH_T64((r)[2] + C); \
(r)[3] = SPH_T64((r)[3] + D); \
(r)[4] = SPH_T64((r)[4] + E); \
(r)[5] = SPH_T64((r)[5] + F); \
(r)[6] = SPH_T64((r)[6] + G); \
(r)[7] = SPH_T64((r)[7] + H); \
} while (0)
/*
* One round of SHA-384 / SHA-512. The data must be aligned for 64-bit access.
*/
static void
sha3_round(const unsigned char *data, sph_u64 r[8])
{
#define SHA3_IN(x) sph_dec64be_aligned(data + (8 * (x)))
SHA3_ROUND_BODY(SHA3_IN, r);
#undef SHA3_IN
}
/* see sph_sha3.h */
void
sph_sha384_init(void *cc)
{
sph_sha384_context *sc;
sc = cc;
memcpy(sc->val, H384, sizeof H384);
sc->count = 0;
}
/* see sph_sha3.h */
void
sph_sha512_init(void *cc)
{
sph_sha512_context *sc;
sc = cc;
memcpy(sc->val, H512, sizeof H512);
sc->count = 0;
}
#define RFUN sha3_round
#define HASH sha384
#define BE64 1
#include "sph/md_helper.c"
/* see sph_sha3.h */
void
sph_sha384_close(void *cc, void *dst)
{
sha384_close(cc, dst, 6);
sph_sha384_init(cc);
}
/* see sph_sha3.h */
void
sph_sha384_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst)
{
sha384_addbits_and_close(cc, ub, n, dst, 6);
sph_sha384_init(cc);
}
/* see sph_sha3.h */
void
sph_sha512_close(void *cc, void *dst)
{
sha384_close(cc, dst, 8);
sph_sha512_init(cc);
}
/* see sph_sha3.h */
void
sph_sha512_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst)
{
sha384_addbits_and_close(cc, ub, n, dst, 8);
sph_sha512_init(cc);
}
/* see sph_sha3.h */
void
sph_sha384_comp(const sph_u64 msg[16], sph_u64 val[8])
{
#define SHA3_IN(x) msg[x]
SHA3_ROUND_BODY(SHA3_IN, val);
#undef SHA3_IN
}
#endif

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/* $Id: md_helper.c 216 2010-06-08 09:46:57Z tp $ */
/*
* This file contains some functions which implement the external data
* handling and padding for Merkle-Damgard hash functions which follow
* the conventions set out by MD4 (little-endian) or SHA-1 (big-endian).
*
* API: this file is meant to be included, not compiled as a stand-alone
* file. Some macros must be defined:
* RFUN name for the round function
* HASH "short name" for the hash function
* BE32 defined for big-endian, 32-bit based (e.g. SHA-1)
* LE32 defined for little-endian, 32-bit based (e.g. MD5)
* BE64 defined for big-endian, 64-bit based (e.g. SHA-512)
* LE64 defined for little-endian, 64-bit based (no example yet)
* PW01 if defined, append 0x01 instead of 0x80 (for Tiger)
* BLEN if defined, length of a message block (in bytes)
* PLW1 if defined, length is defined on one 64-bit word only (for Tiger)
* PLW4 if defined, length is defined on four 64-bit words (for WHIRLPOOL)
* SVAL if defined, reference to the context state information
*
* BLEN is used when a message block is not 16 (32-bit or 64-bit) words:
* this is used for instance for Tiger, which works on 64-bit words but
* uses 512-bit message blocks (eight 64-bit words). PLW1 and PLW4 are
* ignored if 32-bit words are used; if 64-bit words are used and PLW1 is
* set, then only one word (64 bits) will be used to encode the input
* message length (in bits), otherwise two words will be used (as in
* SHA-384 and SHA-512). If 64-bit words are used and PLW4 is defined (but
* not PLW1), four 64-bit words will be used to encode the message length
* (in bits). Note that regardless of those settings, only 64-bit message
* lengths are supported (in bits): messages longer than 2 Exabytes will be
* improperly hashed (this is unlikely to happen soon: 2 Exabytes is about
* 2 millions Terabytes, which is huge).
*
* If CLOSE_ONLY is defined, then this file defines only the sph_XXX_close()
* function. This is used for Tiger2, which is identical to Tiger except
* when it comes to the padding (Tiger2 uses the standard 0x80 byte instead
* of the 0x01 from original Tiger).
*
* The RFUN function is invoked with two arguments, the first pointing to
* aligned data (as a "const void *"), the second being state information
* from the context structure. By default, this state information is the
* "val" field from the context, and this field is assumed to be an array
* of words ("sph_u32" or "sph_u64", depending on BE32/LE32/BE64/LE64).
* from the context structure. The "val" field can have any type, except
* for the output encoding which assumes that it is an array of "sph_u32"
* values. By defining NO_OUTPUT, this last step is deactivated; the
* includer code is then responsible for writing out the hash result. When
* NO_OUTPUT is defined, the third parameter to the "close()" function is
* ignored.
*
* ==========================(LICENSE BEGIN)============================
*
* Copyright (c) 2007-2010 Projet RNRT SAPHIR
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* ===========================(LICENSE END)=============================
*
* @author Thomas Pornin <thomas.pornin@cryptolog.com>
*/
#ifdef _MSC_VER
#pragma warning (disable: 4146)
#endif
#undef SPH_XCAT
#define SPH_XCAT(a, b) SPH_XCAT_(a, b)
#undef SPH_XCAT_
#define SPH_XCAT_(a, b) a ## b
#undef SPH_BLEN
#undef SPH_WLEN
#if defined BE64 || defined LE64
#define SPH_BLEN 128U
#define SPH_WLEN 8U
#else
#define SPH_BLEN 64U
#define SPH_WLEN 4U
#endif
#ifdef BLEN
#undef SPH_BLEN
#define SPH_BLEN BLEN
#endif
#undef SPH_MAXPAD
#if defined PLW1
#define SPH_MAXPAD (SPH_BLEN - SPH_WLEN)
#elif defined PLW4
#define SPH_MAXPAD (SPH_BLEN - (SPH_WLEN << 2))
#else
#define SPH_MAXPAD (SPH_BLEN - (SPH_WLEN << 1))
#endif
#undef SPH_VAL
#undef SPH_NO_OUTPUT
#ifdef SVAL
#define SPH_VAL SVAL
#define SPH_NO_OUTPUT 1
#else
#define SPH_VAL sc->val
#endif
#ifndef CLOSE_ONLY
#ifdef SPH_UPTR
static void
SPH_XCAT(HASH, _short)(void *cc, const void *data, size_t len)
#else
void
SPH_XCAT(sph_, HASH)(void *cc, const void *data, size_t len)
#endif
{
SPH_XCAT(sph_, SPH_XCAT(HASH, _context)) *sc;
unsigned current;
sc = cc;
#if SPH_64
current = (unsigned)sc->count & (SPH_BLEN - 1U);
#else
current = (unsigned)sc->count_low & (SPH_BLEN - 1U);
#endif
while (len > 0) {
unsigned clen;
#if !SPH_64
sph_u32 clow, clow2;
#endif
clen = SPH_BLEN - current;
if (clen > len)
clen = len;
memcpy(sc->buf + current, data, clen);
data = (const unsigned char *)data + clen;
current += clen;
len -= clen;
if (current == SPH_BLEN) {
RFUN(sc->buf, SPH_VAL);
current = 0;
}
#if SPH_64
sc->count += clen;
#else
clow = sc->count_low;
clow2 = SPH_T32(clow + clen);
sc->count_low = clow2;
if (clow2 < clow)
sc->count_high ++;
#endif
}
}
#ifdef SPH_UPTR
void
SPH_XCAT(sph_, HASH)(void *cc, const void *data, size_t len)
{
SPH_XCAT(sph_, SPH_XCAT(HASH, _context)) *sc;
unsigned current;
size_t orig_len;
#if !SPH_64
sph_u32 clow, clow2;
#endif
if (len < (2 * SPH_BLEN)) {
SPH_XCAT(HASH, _short)(cc, data, len);
return;
}
sc = cc;
#if SPH_64
current = (unsigned)sc->count & (SPH_BLEN - 1U);
#else
current = (unsigned)sc->count_low & (SPH_BLEN - 1U);
#endif
if (current > 0) {
unsigned t;
t = SPH_BLEN - current;
SPH_XCAT(HASH, _short)(cc, data, t);
data = (const unsigned char *)data + t;
len -= t;
}
#if !SPH_UNALIGNED
if (((SPH_UPTR)data & (SPH_WLEN - 1U)) != 0) {
SPH_XCAT(HASH, _short)(cc, data, len);
return;
}
#endif
orig_len = len;
while (len >= SPH_BLEN) {
RFUN(data, SPH_VAL);
len -= SPH_BLEN;
data = (const unsigned char *)data + SPH_BLEN;
}
if (len > 0)
memcpy(sc->buf, data, len);
#if SPH_64
sc->count += (sph_u64)orig_len;
#else
clow = sc->count_low;
clow2 = SPH_T32(clow + orig_len);
sc->count_low = clow2;
if (clow2 < clow)
sc->count_high ++;
/*
* This code handles the improbable situation where "size_t" is
* greater than 32 bits, and yet we do not have a 64-bit type.
*/
orig_len >>= 12;
orig_len >>= 10;
orig_len >>= 10;
sc->count_high += orig_len;
#endif
}
#endif
#endif
/*
* Perform padding and produce result. The context is NOT reinitialized
* by this function.
*/
static void
SPH_XCAT(HASH, _addbits_and_close)(void *cc,
unsigned ub, unsigned n, void *dst, unsigned rnum)
{
SPH_XCAT(sph_, SPH_XCAT(HASH, _context)) *sc;
unsigned current, u;
#if !SPH_64
sph_u32 low, high;
#endif
sc = cc;
#if SPH_64
current = (unsigned)sc->count & (SPH_BLEN - 1U);
#else
current = (unsigned)sc->count_low & (SPH_BLEN - 1U);
#endif
#ifdef PW01
sc->buf[current ++] = (0x100 | (ub & 0xFF)) >> (8 - n);
#else
{
unsigned z;
z = 0x80 >> n;
sc->buf[current ++] = ((ub & -z) | z) & 0xFF;
}
#endif
if (current > SPH_MAXPAD) {
memset(sc->buf + current, 0, SPH_BLEN - current);
RFUN(sc->buf, SPH_VAL);
memset(sc->buf, 0, SPH_MAXPAD);
} else {
memset(sc->buf + current, 0, SPH_MAXPAD - current);
}
#if defined BE64
#if defined PLW1
sph_enc64be_aligned(sc->buf + SPH_MAXPAD,
SPH_T64(sc->count << 3) + (sph_u64)n);
#elif defined PLW4
memset(sc->buf + SPH_MAXPAD, 0, 2 * SPH_WLEN);
sph_enc64be_aligned(sc->buf + SPH_MAXPAD + 2 * SPH_WLEN,
sc->count >> 61);
sph_enc64be_aligned(sc->buf + SPH_MAXPAD + 3 * SPH_WLEN,
SPH_T64(sc->count << 3) + (sph_u64)n);
#else
sph_enc64be_aligned(sc->buf + SPH_MAXPAD, sc->count >> 61);
sph_enc64be_aligned(sc->buf + SPH_MAXPAD + SPH_WLEN,
SPH_T64(sc->count << 3) + (sph_u64)n);
#endif
#elif defined LE64
#if defined PLW1
sph_enc64le_aligned(sc->buf + SPH_MAXPAD,
SPH_T64(sc->count << 3) + (sph_u64)n);
#elif defined PLW1
sph_enc64le_aligned(sc->buf + SPH_MAXPAD,
SPH_T64(sc->count << 3) + (sph_u64)n);
sph_enc64le_aligned(sc->buf + SPH_MAXPAD + SPH_WLEN, sc->count >> 61);
memset(sc->buf + SPH_MAXPAD + 2 * SPH_WLEN, 0, 2 * SPH_WLEN);
#else
sph_enc64le_aligned(sc->buf + SPH_MAXPAD,
SPH_T64(sc->count << 3) + (sph_u64)n);
sph_enc64le_aligned(sc->buf + SPH_MAXPAD + SPH_WLEN, sc->count >> 61);
#endif
#else
#if SPH_64
#ifdef BE32
sph_enc64be_aligned(sc->buf + SPH_MAXPAD,
SPH_T64(sc->count << 3) + (sph_u64)n);
#else
sph_enc64le_aligned(sc->buf + SPH_MAXPAD,
SPH_T64(sc->count << 3) + (sph_u64)n);
#endif
#else
low = sc->count_low;
high = SPH_T32((sc->count_high << 3) | (low >> 29));
low = SPH_T32(low << 3) + (sph_u32)n;
#ifdef BE32
sph_enc32be(sc->buf + SPH_MAXPAD, high);
sph_enc32be(sc->buf + SPH_MAXPAD + SPH_WLEN, low);
#else
sph_enc32le(sc->buf + SPH_MAXPAD, low);
sph_enc32le(sc->buf + SPH_MAXPAD + SPH_WLEN, high);
#endif
#endif
#endif
RFUN(sc->buf, SPH_VAL);
#ifdef SPH_NO_OUTPUT
(void)dst;
(void)rnum;
(void)u;
#else
for (u = 0; u < rnum; u ++) {
#if defined BE64
sph_enc64be((unsigned char *)dst + 8 * u, sc->val[u]);
#elif defined LE64
sph_enc64le((unsigned char *)dst + 8 * u, sc->val[u]);
#elif defined BE32
sph_enc32be((unsigned char *)dst + 4 * u, sc->val[u]);
#else
sph_enc32le((unsigned char *)dst + 4 * u, sc->val[u]);
#endif
}
#endif
}
static void
SPH_XCAT(HASH, _close)(void *cc, void *dst, unsigned rnum)
{
SPH_XCAT(HASH, _addbits_and_close)(cc, 0, 0, dst, rnum);
}

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/* $Id: sph_sha2.h 216 2010-06-08 09:46:57Z tp $ */
/**
* SHA-224, SHA-256, SHA-384 and SHA-512 interface.
*
* SHA-256 has been published in FIPS 180-2, now amended with a change
* notice to include SHA-224 as well (which is a simple variation on
* SHA-256). SHA-384 and SHA-512 are also defined in FIPS 180-2. FIPS
* standards can be found at:
* http://csrc.nist.gov/publications/fips/
*
* ==========================(LICENSE BEGIN)============================
*
* Copyright (c) 2007-2010 Projet RNRT SAPHIR
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* ===========================(LICENSE END)=============================
*
* @file sph_sha2.h
* @author Thomas Pornin <thomas.pornin@cryptolog.com>
*/
#ifndef SPH_SHA2_H__
#define SPH_SHA2_H__
#include <stddef.h>
#include "sph_types.h"
/**
* Output size (in bits) for SHA-224.
*/
#define SPH_SIZE_sha224 224
/**
* Output size (in bits) for SHA-256.
*/
#define SPH_SIZE_sha256 256
/**
* This structure is a context for SHA-224 computations: it contains the
* intermediate values and some data from the last entered block. Once
* a SHA-224 computation has been performed, the context can be reused for
* another computation.
*
* The contents of this structure are private. A running SHA-224 computation
* can be cloned by copying the context (e.g. with a simple
* <code>memcpy()</code>).
*/
typedef struct {
#ifndef DOXYGEN_IGNORE
unsigned char buf[64]; /* first field, for alignment */
sph_u32 val[8];
#if SPH_64
sph_u64 count;
#else
sph_u32 count_high, count_low;
#endif
#endif
} sph_sha224_context;
/**
* This structure is a context for SHA-256 computations. It is identical
* to the SHA-224 context. However, a context is initialized for SHA-224
* <strong>or</strong> SHA-256, but not both (the internal IV is not the
* same).
*/
typedef sph_sha224_context sph_sha256_context;
/**
* Initialize a SHA-224 context. This process performs no memory allocation.
*
* @param cc the SHA-224 context (pointer to
* a <code>sph_sha224_context</code>)
*/
void sph_sha224_init(void *cc);
/**
* Process some data bytes. It is acceptable that <code>len</code> is zero
* (in which case this function does nothing).
*
* @param cc the SHA-224 context
* @param data the input data
* @param len the input data length (in bytes)
*/
void sph_sha224(void *cc, const void *data, size_t len);
/**
* Terminate the current SHA-224 computation and output the result into the
* provided buffer. The destination buffer must be wide enough to
* accomodate the result (28 bytes). The context is automatically
* reinitialized.
*
* @param cc the SHA-224 context
* @param dst the destination buffer
*/
void sph_sha224_close(void *cc, void *dst);
/**
* Add a few additional bits (0 to 7) to the current computation, then
* terminate it and output the result in the provided buffer, which must
* be wide enough to accomodate the result (28 bytes). If bit number i
* in <code>ub</code> has value 2^i, then the extra bits are those
* numbered 7 downto 8-n (this is the big-endian convention at the byte
* level). The context is automatically reinitialized.
*
* @param cc the SHA-224 context
* @param ub the extra bits
* @param n the number of extra bits (0 to 7)
* @param dst the destination buffer
*/
void sph_sha224_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst);
/**
* Apply the SHA-224 compression function on the provided data. The
* <code>msg</code> parameter contains the 16 32-bit input blocks,
* as numerical values (hence after the big-endian decoding). The
* <code>val</code> parameter contains the 8 32-bit input blocks for
* the compression function; the output is written in place in this
* array.
*
* @param msg the message block (16 values)
* @param val the function 256-bit input and output
*/
void sph_sha224_comp(const sph_u32 msg[16], sph_u32 val[8]);
/**
* Initialize a SHA-256 context. This process performs no memory allocation.
*
* @param cc the SHA-256 context (pointer to
* a <code>sph_sha256_context</code>)
*/
void sph_sha256_init(void *cc);
#ifdef DOXYGEN_IGNORE
/**
* Process some data bytes, for SHA-256. This function is identical to
* <code>sha_224()</code>
*
* @param cc the SHA-224 context
* @param data the input data
* @param len the input data length (in bytes)
*/
void sph_sha256(void *cc, const void *data, size_t len);
#endif
#ifndef DOXYGEN_IGNORE
#define sph_sha256 sph_sha224
#endif
/**
* Terminate the current SHA-256 computation and output the result into the
* provided buffer. The destination buffer must be wide enough to
* accomodate the result (32 bytes). The context is automatically
* reinitialized.
*
* @param cc the SHA-256 context
* @param dst the destination buffer
*/
void sph_sha256_close(void *cc, void *dst);
/**
* Add a few additional bits (0 to 7) to the current computation, then
* terminate it and output the result in the provided buffer, which must
* be wide enough to accomodate the result (32 bytes). If bit number i
* in <code>ub</code> has value 2^i, then the extra bits are those
* numbered 7 downto 8-n (this is the big-endian convention at the byte
* level). The context is automatically reinitialized.
*
* @param cc the SHA-256 context
* @param ub the extra bits
* @param n the number of extra bits (0 to 7)
* @param dst the destination buffer
*/
void sph_sha256_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst);
#ifdef DOXYGEN_IGNORE
/**
* Apply the SHA-256 compression function on the provided data. This
* function is identical to <code>sha224_comp()</code>.
*
* @param msg the message block (16 values)
* @param val the function 256-bit input and output
*/
void sph_sha256_comp(const sph_u32 msg[16], sph_u32 val[8]);
#endif
#ifndef DOXYGEN_IGNORE
#define sph_sha256_comp sph_sha224_comp
#endif
#if SPH_64
/**
* Output size (in bits) for SHA-384.
*/
#define SPH_SIZE_sha384 384
/**
* Output size (in bits) for SHA-512.
*/
#define SPH_SIZE_sha512 512
/**
* This structure is a context for SHA-384 computations: it contains the
* intermediate values and some data from the last entered block. Once
* a SHA-384 computation has been performed, the context can be reused for
* another computation.
*
* The contents of this structure are private. A running SHA-384 computation
* can be cloned by copying the context (e.g. with a simple
* <code>memcpy()</code>).
*/
typedef struct {
#ifndef DOXYGEN_IGNORE
unsigned char buf[128]; /* first field, for alignment */
sph_u64 val[8];
sph_u64 count;
#endif
} sph_sha384_context;
/**
* Initialize a SHA-384 context. This process performs no memory allocation.
*
* @param cc the SHA-384 context (pointer to
* a <code>sph_sha384_context</code>)
*/
void sph_sha384_init(void *cc);
/**
* Process some data bytes. It is acceptable that <code>len</code> is zero
* (in which case this function does nothing).
*
* @param cc the SHA-384 context
* @param data the input data
* @param len the input data length (in bytes)
*/
void sph_sha384(void *cc, const void *data, size_t len);
/**
* Terminate the current SHA-384 computation and output the result into the
* provided buffer. The destination buffer must be wide enough to
* accomodate the result (48 bytes). The context is automatically
* reinitialized.
*
* @param cc the SHA-384 context
* @param dst the destination buffer
*/
void sph_sha384_close(void *cc, void *dst);
/**
* Add a few additional bits (0 to 7) to the current computation, then
* terminate it and output the result in the provided buffer, which must
* be wide enough to accomodate the result (48 bytes). If bit number i
* in <code>ub</code> has value 2^i, then the extra bits are those
* numbered 7 downto 8-n (this is the big-endian convention at the byte
* level). The context is automatically reinitialized.
*
* @param cc the SHA-384 context
* @param ub the extra bits
* @param n the number of extra bits (0 to 7)
* @param dst the destination buffer
*/
void sph_sha384_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst);
/**
* Apply the SHA-384 compression function on the provided data. The
* <code>msg</code> parameter contains the 16 64-bit input blocks,
* as numerical values (hence after the big-endian decoding). The
* <code>val</code> parameter contains the 8 64-bit input blocks for
* the compression function; the output is written in place in this
* array.
*
* @param msg the message block (16 values)
* @param val the function 512-bit input and output
*/
void sph_sha384_comp(const sph_u64 msg[16], sph_u64 val[8]);
/**
* This structure is a context for SHA-512 computations. It is identical
* to the SHA-384 context. However, a context is initialized for SHA-384
* <strong>or</strong> SHA-512, but not both (the internal IV is not the
* same).
*/
typedef sph_sha384_context sph_sha512_context;
/**
* Initialize a SHA-512 context. This process performs no memory allocation.
*
* @param cc the SHA-512 context (pointer to
* a <code>sph_sha512_context</code>)
*/
void sph_sha512_init(void *cc);
#ifdef DOXYGEN_IGNORE
/**
* Process some data bytes, for SHA-512. This function is identical to
* <code>sph_sha384()</code>.
*
* @param cc the SHA-384 context
* @param data the input data
* @param len the input data length (in bytes)
*/
void sph_sha512(void *cc, const void *data, size_t len);
#endif
#ifndef DOXYGEN_IGNORE
#define sph_sha512 sph_sha384
#endif
/**
* Terminate the current SHA-512 computation and output the result into the
* provided buffer. The destination buffer must be wide enough to
* accomodate the result (64 bytes). The context is automatically
* reinitialized.
*
* @param cc the SHA-512 context
* @param dst the destination buffer
*/
void sph_sha512_close(void *cc, void *dst);
/**
* Add a few additional bits (0 to 7) to the current computation, then
* terminate it and output the result in the provided buffer, which must
* be wide enough to accomodate the result (64 bytes). If bit number i
* in <code>ub</code> has value 2^i, then the extra bits are those
* numbered 7 downto 8-n (this is the big-endian convention at the byte
* level). The context is automatically reinitialized.
*
* @param cc the SHA-512 context
* @param ub the extra bits
* @param n the number of extra bits (0 to 7)
* @param dst the destination buffer
*/
void sph_sha512_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst);
#ifdef DOXYGEN_IGNORE
/**
* Apply the SHA-512 compression function. This function is identical to
* <code>sph_sha384_comp()</code>.
*
* @param msg the message block (16 values)
* @param val the function 512-bit input and output
*/
void sph_sha512_comp(const sph_u64 msg[16], sph_u64 val[8]);
#endif
#ifndef DOXYGEN_IGNORE
#define sph_sha512_comp sph_sha384_comp
#endif
#endif
#endif

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