--- /dev/null
+/*
+ * ccsha1_eay.c
+ * corecrypto
+ *
+ * Created by Fabrice Gautier on 12/6/10.
+ * Copyright 2010,2011 Apple Inc. All rights reserved.
+ *
+ * Based on ssleay implementation.
+ *
+ */
+
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#define USE_SUPER_COOL_NEW_CCOID_T
+#include <corecrypto/ccsha1.h>
+#include <corecrypto/cc_priv.h>
+#include <corecrypto/ccdigest_priv.h>
+
+
+#ifndef SHA_LONG_LOG2
+#define SHA_LONG_LOG2 2 /* default to 32 bits */
+#endif
+
+
+#define ROTATE(b, n) CC_ROLc(b, n)
+
+#define Xupdate(a,ix,ia,ib,ic,id) ( (a)=(ia^ib^ic^id), \
+ ix=(a)=ROTATE((a),1) \
+ )
+
+#define MD32_REG_T uint32_t
+
+#define HOST_c2l(data, l) CC_LOAD32_BE(l, data); data+=4;
+
+#define K_00_19 0x5a827999
+#define K_20_39 0x6ed9eba1
+#define K_40_59 0x8f1bbcdc
+#define K_60_79 0xca62c1d6
+
+/* As pointed out by Wei Dai <weidai@eskimo.com>, F() below can be
+ * simplified to the code in F_00_19. Wei attributes these optimisations
+ * to Peter Gutmann's SHS code, and he attributes it to Rich Schroeppel.
+ * #define F(x,y,z) (((x) & (y)) | ((~(x)) & (z)))
+ * I've just become aware of another tweak to be made, again from Wei Dai,
+ * in F_40_59, (x&a)|(y&a) -> (x|y)&a
+ */
+#define F_00_19(b,c,d) ((((c) ^ (d)) & (b)) ^ (d))
+#define F_20_39(b,c,d) ((b) ^ (c) ^ (d))
+#define F_40_59(b,c,d) (((b) & (c)) | (((b)|(c)) & (d)))
+#define F_60_79(b,c,d) F_20_39(b,c,d)
+
+#define BODY_00_15(i,a,b,c,d,e,f,xi) \
+ (f)=xi+(e)+K_00_19+ROTATE((a),5)+F_00_19((b),(c),(d)); \
+ (b)=ROTATE((b),30);
+
+#define BODY_16_19(i,a,b,c,d,e,f,xi,xa,xb,xc,xd) \
+ Xupdate(f,xi,xa,xb,xc,xd); \
+ (f)+=(e)+K_00_19+ROTATE((a),5)+F_00_19((b),(c),(d)); \
+ (b)=ROTATE((b),30);
+
+#define BODY_20_31(i,a,b,c,d,e,f,xi,xa,xb,xc,xd) \
+ Xupdate(f,xi,xa,xb,xc,xd); \
+ (f)+=(e)+K_20_39+ROTATE((a),5)+F_20_39((b),(c),(d)); \
+ (b)=ROTATE((b),30);
+
+#define BODY_32_39(i,a,b,c,d,e,f,xa,xb,xc,xd) \
+ Xupdate(f,xa,xa,xb,xc,xd); \
+ (f)+=(e)+K_20_39+ROTATE((a),5)+F_20_39((b),(c),(d)); \
+ (b)=ROTATE((b),30);
+
+#define BODY_40_59(i,a,b,c,d,e,f,xa,xb,xc,xd) \
+ Xupdate(f,xa,xa,xb,xc,xd); \
+ (f)+=(e)+K_40_59+ROTATE((a),5)+F_40_59((b),(c),(d)); \
+ (b)=ROTATE((b),30);
+
+#define BODY_60_79(i,a,b,c,d,e,f,xa,xb,xc,xd) \
+ Xupdate(f,xa,xa,xb,xc,xd); \
+ (f)=xa+(e)+K_60_79+ROTATE((a),5)+F_60_79((b),(c),(d)); \
+ (b)=ROTATE((b),30);
+
+#ifdef X
+#undef X
+#endif
+
+#ifndef MD32_XARRAY
+ /*
+ * Originally X was an array. As it's automatic it's natural
+ * to expect RISC compiler to accomodate at least part of it in
+ * the register bank, isn't it? Unfortunately not all compilers
+ * "find" this expectation reasonable:-( On order to make such
+ * compilers generate better code I replace X[] with a bunch of
+ * X0, X1, etc. See the function body below...
+ * <appro@fy.chalmers.se>
+ */
+# define X(i) XX##i
+#else
+ /*
+ * However! Some compilers (most notably HP C) get overwhelmed by
+ * that many local variables so that we have to have the way to
+ * fall down to the original behavior.
+ */
+# define X(i) XX[i]
+#endif
+
+static void sha1_compress(ccdigest_state_t s, unsigned long num, const void *buf)
+{
+ const unsigned char *data=buf;
+ register uint32_t A,B,C,D,E,T,l;
+#ifndef MD32_XARRAY
+ uint32_t XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7,
+ XX8, XX9,XX10,XX11,XX12,XX13,XX14,XX15;
+#else
+ uint32_t XX[16];
+#endif
+ uint32_t *state=ccdigest_u32(s);
+
+ A=state[0];
+ B=state[1];
+ C=state[2];
+ D=state[3];
+ E=state[4];
+
+ for (;;)
+ {
+
+ HOST_c2l(data,l); X( 0)=l; HOST_c2l(data,l); X( 1)=l;
+ BODY_00_15( 0,A,B,C,D,E,T,X( 0)); HOST_c2l(data,l); X( 2)=l;
+ BODY_00_15( 1,T,A,B,C,D,E,X( 1)); HOST_c2l(data,l); X( 3)=l;
+ BODY_00_15( 2,E,T,A,B,C,D,X( 2)); HOST_c2l(data,l); X( 4)=l;
+ BODY_00_15( 3,D,E,T,A,B,C,X( 3)); HOST_c2l(data,l); X( 5)=l;
+ BODY_00_15( 4,C,D,E,T,A,B,X( 4)); HOST_c2l(data,l); X( 6)=l;
+ BODY_00_15( 5,B,C,D,E,T,A,X( 5)); HOST_c2l(data,l); X( 7)=l;
+ BODY_00_15( 6,A,B,C,D,E,T,X( 6)); HOST_c2l(data,l); X( 8)=l;
+ BODY_00_15( 7,T,A,B,C,D,E,X( 7)); HOST_c2l(data,l); X( 9)=l;
+ BODY_00_15( 8,E,T,A,B,C,D,X( 8)); HOST_c2l(data,l); X(10)=l;
+ BODY_00_15( 9,D,E,T,A,B,C,X( 9)); HOST_c2l(data,l); X(11)=l;
+ BODY_00_15(10,C,D,E,T,A,B,X(10)); HOST_c2l(data,l); X(12)=l;
+ BODY_00_15(11,B,C,D,E,T,A,X(11)); HOST_c2l(data,l); X(13)=l;
+ BODY_00_15(12,A,B,C,D,E,T,X(12)); HOST_c2l(data,l); X(14)=l;
+ BODY_00_15(13,T,A,B,C,D,E,X(13)); HOST_c2l(data,l); X(15)=l;
+ BODY_00_15(14,E,T,A,B,C,D,X(14));
+ BODY_00_15(15,D,E,T,A,B,C,X(15));
+
+ BODY_16_19(16,C,D,E,T,A,B,X( 0),X( 0),X( 2),X( 8),X(13));
+ BODY_16_19(17,B,C,D,E,T,A,X( 1),X( 1),X( 3),X( 9),X(14));
+ BODY_16_19(18,A,B,C,D,E,T,X( 2),X( 2),X( 4),X(10),X(15));
+ BODY_16_19(19,T,A,B,C,D,E,X( 3),X( 3),X( 5),X(11),X( 0));
+
+ BODY_20_31(20,E,T,A,B,C,D,X( 4),X( 4),X( 6),X(12),X( 1));
+ BODY_20_31(21,D,E,T,A,B,C,X( 5),X( 5),X( 7),X(13),X( 2));
+ BODY_20_31(22,C,D,E,T,A,B,X( 6),X( 6),X( 8),X(14),X( 3));
+ BODY_20_31(23,B,C,D,E,T,A,X( 7),X( 7),X( 9),X(15),X( 4));
+ BODY_20_31(24,A,B,C,D,E,T,X( 8),X( 8),X(10),X( 0),X( 5));
+ BODY_20_31(25,T,A,B,C,D,E,X( 9),X( 9),X(11),X( 1),X( 6));
+ BODY_20_31(26,E,T,A,B,C,D,X(10),X(10),X(12),X( 2),X( 7));
+ BODY_20_31(27,D,E,T,A,B,C,X(11),X(11),X(13),X( 3),X( 8));
+ BODY_20_31(28,C,D,E,T,A,B,X(12),X(12),X(14),X( 4),X( 9));
+ BODY_20_31(29,B,C,D,E,T,A,X(13),X(13),X(15),X( 5),X(10));
+ BODY_20_31(30,A,B,C,D,E,T,X(14),X(14),X( 0),X( 6),X(11));
+ BODY_20_31(31,T,A,B,C,D,E,X(15),X(15),X( 1),X( 7),X(12));
+
+ BODY_32_39(32,E,T,A,B,C,D,X( 0),X( 2),X( 8),X(13));
+ BODY_32_39(33,D,E,T,A,B,C,X( 1),X( 3),X( 9),X(14));
+ BODY_32_39(34,C,D,E,T,A,B,X( 2),X( 4),X(10),X(15));
+ BODY_32_39(35,B,C,D,E,T,A,X( 3),X( 5),X(11),X( 0));
+ BODY_32_39(36,A,B,C,D,E,T,X( 4),X( 6),X(12),X( 1));
+ BODY_32_39(37,T,A,B,C,D,E,X( 5),X( 7),X(13),X( 2));
+ BODY_32_39(38,E,T,A,B,C,D,X( 6),X( 8),X(14),X( 3));
+ BODY_32_39(39,D,E,T,A,B,C,X( 7),X( 9),X(15),X( 4));
+
+ BODY_40_59(40,C,D,E,T,A,B,X( 8),X(10),X( 0),X( 5));
+ BODY_40_59(41,B,C,D,E,T,A,X( 9),X(11),X( 1),X( 6));
+ BODY_40_59(42,A,B,C,D,E,T,X(10),X(12),X( 2),X( 7));
+ BODY_40_59(43,T,A,B,C,D,E,X(11),X(13),X( 3),X( 8));
+ BODY_40_59(44,E,T,A,B,C,D,X(12),X(14),X( 4),X( 9));
+ BODY_40_59(45,D,E,T,A,B,C,X(13),X(15),X( 5),X(10));
+ BODY_40_59(46,C,D,E,T,A,B,X(14),X( 0),X( 6),X(11));
+ BODY_40_59(47,B,C,D,E,T,A,X(15),X( 1),X( 7),X(12));
+ BODY_40_59(48,A,B,C,D,E,T,X( 0),X( 2),X( 8),X(13));
+ BODY_40_59(49,T,A,B,C,D,E,X( 1),X( 3),X( 9),X(14));
+ BODY_40_59(50,E,T,A,B,C,D,X( 2),X( 4),X(10),X(15));
+ BODY_40_59(51,D,E,T,A,B,C,X( 3),X( 5),X(11),X( 0));
+ BODY_40_59(52,C,D,E,T,A,B,X( 4),X( 6),X(12),X( 1));
+ BODY_40_59(53,B,C,D,E,T,A,X( 5),X( 7),X(13),X( 2));
+ BODY_40_59(54,A,B,C,D,E,T,X( 6),X( 8),X(14),X( 3));
+ BODY_40_59(55,T,A,B,C,D,E,X( 7),X( 9),X(15),X( 4));
+ BODY_40_59(56,E,T,A,B,C,D,X( 8),X(10),X( 0),X( 5));
+ BODY_40_59(57,D,E,T,A,B,C,X( 9),X(11),X( 1),X( 6));
+ BODY_40_59(58,C,D,E,T,A,B,X(10),X(12),X( 2),X( 7));
+ BODY_40_59(59,B,C,D,E,T,A,X(11),X(13),X( 3),X( 8));
+
+ BODY_60_79(60,A,B,C,D,E,T,X(12),X(14),X( 4),X( 9));
+ BODY_60_79(61,T,A,B,C,D,E,X(13),X(15),X( 5),X(10));
+ BODY_60_79(62,E,T,A,B,C,D,X(14),X( 0),X( 6),X(11));
+ BODY_60_79(63,D,E,T,A,B,C,X(15),X( 1),X( 7),X(12));
+ BODY_60_79(64,C,D,E,T,A,B,X( 0),X( 2),X( 8),X(13));
+ BODY_60_79(65,B,C,D,E,T,A,X( 1),X( 3),X( 9),X(14));
+ BODY_60_79(66,A,B,C,D,E,T,X( 2),X( 4),X(10),X(15));
+ BODY_60_79(67,T,A,B,C,D,E,X( 3),X( 5),X(11),X( 0));
+ BODY_60_79(68,E,T,A,B,C,D,X( 4),X( 6),X(12),X( 1));
+ BODY_60_79(69,D,E,T,A,B,C,X( 5),X( 7),X(13),X( 2));
+ BODY_60_79(70,C,D,E,T,A,B,X( 6),X( 8),X(14),X( 3));
+ BODY_60_79(71,B,C,D,E,T,A,X( 7),X( 9),X(15),X( 4));
+ BODY_60_79(72,A,B,C,D,E,T,X( 8),X(10),X( 0),X( 5));
+ BODY_60_79(73,T,A,B,C,D,E,X( 9),X(11),X( 1),X( 6));
+ BODY_60_79(74,E,T,A,B,C,D,X(10),X(12),X( 2),X( 7));
+ BODY_60_79(75,D,E,T,A,B,C,X(11),X(13),X( 3),X( 8));
+ BODY_60_79(76,C,D,E,T,A,B,X(12),X(14),X( 4),X( 9));
+ BODY_60_79(77,B,C,D,E,T,A,X(13),X(15),X( 5),X(10));
+ BODY_60_79(78,A,B,C,D,E,T,X(14),X( 0),X( 6),X(11));
+ BODY_60_79(79,T,A,B,C,D,E,X(15),X( 1),X( 7),X(12));
+
+ state[0]=(state[0]+E)&0xffffffff;
+ state[1]=(state[1]+T)&0xffffffff;
+ state[2]=(state[2]+A)&0xffffffff;
+ state[3]=(state[3]+B)&0xffffffff;
+ state[4]=(state[4]+C)&0xffffffff;
+
+ if (--num <= 0) break;
+
+ A=state[0];
+ B=state[1];
+ C=state[2];
+ D=state[3];
+ E=state[4];
+
+ }
+}
+
+const struct ccdigest_info ccsha1_eay_di = {
+ .output_size = CCSHA1_OUTPUT_SIZE,
+ .state_size = CCSHA1_STATE_SIZE,
+ .block_size = CCSHA1_BLOCK_SIZE,
+ .oid_size = ccoid_sha1_len,
+ .oid = CC_DIGEST_OID_SHA1,
+ .initial_state = ccsha1_initial_state,
+ .compress = sha1_compress,
+ .final = ccdigest_final_64be,
+};
projects / apple / xnu.git / blobdiff