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-rw-r--r--src/libcrypto/include/cbc_generic.h110
-rw-r--r--src/libcrypto/include/hmac_generic.h60
-rw-r--r--src/libcrypto/include/md32_common.h607
3 files changed, 777 insertions, 0 deletions
diff --git a/src/libcrypto/include/cbc_generic.h b/src/libcrypto/include/cbc_generic.h
new file mode 100644
index 000000000..0dd3a77d6
--- /dev/null
+++ b/src/libcrypto/include/cbc_generic.h
@@ -0,0 +1,110 @@
+#ifndef _CBC_GENERIC_H
+#define _CBC_GENERIC_H
+/*
+ * CBC macro helpers
+ *
+ * Author: JuanJo Ciarlante <jjo-ipsec@mendoza.gov.ar>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ */
+
+/*
+ * Heavily inspired in loop_AES
+ */
+#define CBC_IMPL_BLK16(name, ctx_type, addr_type, enc_func, dec_func) \
+int name(ctx_type *ctx, const u_int8_t * in, u_int8_t * out, int ilen, const u_int8_t * iv, int encrypt) { \
+ int ret=ilen, pos; \
+ const u_int32_t *iv_i; \
+ if ((ilen) % 16) return 0; \
+ if (encrypt) { \
+ pos=0; \
+ while(pos<ilen) { \
+ if (pos==0) \
+ iv_i=(const u_int32_t*) iv; \
+ else \
+ iv_i=(const u_int32_t*) (out-16); \
+ *((u_int32_t *)(&out[ 0])) = iv_i[0]^*((const u_int32_t *)(&in[ 0])); \
+ *((u_int32_t *)(&out[ 4])) = iv_i[1]^*((const u_int32_t *)(&in[ 4])); \
+ *((u_int32_t *)(&out[ 8])) = iv_i[2]^*((const u_int32_t *)(&in[ 8])); \
+ *((u_int32_t *)(&out[12])) = iv_i[3]^*((const u_int32_t *)(&in[12])); \
+ enc_func(ctx, (addr_type) out, (addr_type) out); \
+ in+=16; \
+ out+=16; \
+ pos+=16; \
+ } \
+ } else { \
+ pos=ilen-16; \
+ in+=pos; \
+ out+=pos; \
+ while(pos>=0) { \
+ dec_func(ctx, (const addr_type) in, (addr_type) out); \
+ if (pos==0) \
+ iv_i=(const u_int32_t*) (iv); \
+ else \
+ iv_i=(const u_int32_t*) (in-16); \
+ *((u_int32_t *)(&out[ 0])) ^= iv_i[0]; \
+ *((u_int32_t *)(&out[ 4])) ^= iv_i[1]; \
+ *((u_int32_t *)(&out[ 8])) ^= iv_i[2]; \
+ *((u_int32_t *)(&out[12])) ^= iv_i[3]; \
+ in-=16; \
+ out-=16; \
+ pos-=16; \
+ } \
+ } \
+ return ret; \
+}
+#define CBC_IMPL_BLK8(name, ctx_type, addr_type, enc_func, dec_func) \
+int name(ctx_type *ctx, u_int8_t * in, u_int8_t * out, int ilen, const u_int8_t * iv, int encrypt) { \
+ int ret=ilen, pos; \
+ const u_int32_t *iv_i; \
+ if ((ilen) % 8) return 0; \
+ if (encrypt) { \
+ pos=0; \
+ while(pos<ilen) { \
+ if (pos==0) \
+ iv_i=(const u_int32_t*) iv; \
+ else \
+ iv_i=(const u_int32_t*) (out-8); \
+ *((u_int32_t *)(&out[ 0])) = iv_i[0]^*((const u_int32_t *)(&in[ 0])); \
+ *((u_int32_t *)(&out[ 4])) = iv_i[1]^*((const u_int32_t *)(&in[ 4])); \
+ enc_func(ctx, (addr_type)out, (addr_type)out); \
+ in+=8; \
+ out+=8; \
+ pos+=8; \
+ } \
+ } else { \
+ pos=ilen-8; \
+ in+=pos; \
+ out+=pos; \
+ while(pos>=0) { \
+ dec_func(ctx, (const addr_type)in, (addr_type)out); \
+ if (pos==0) \
+ iv_i=(const u_int32_t*) (iv); \
+ else \
+ iv_i=(const u_int32_t*) (in-8); \
+ *((u_int32_t *)(&out[ 0])) ^= iv_i[0]; \
+ *((u_int32_t *)(&out[ 4])) ^= iv_i[1]; \
+ in-=8; \
+ out-=8; \
+ pos-=8; \
+ } \
+ } \
+ return ret; \
+}
+#define CBC_DECL(name, ctx_type) \
+int name(ctx_type *ctx, u_int8_t * in, u_int8_t * out, int ilen, const u_int8_t * iv, int encrypt)
+/*
+Eg.:
+CBC_IMPL_BLK16(AES_cbc_encrypt, aes_context, u_int8_t *, aes_encrypt, aes_decrypt);
+CBC_DECL(AES_cbc_encrypt, aes_context);
+*/
+#endif /* _CBC_GENERIC_H */
diff --git a/src/libcrypto/include/hmac_generic.h b/src/libcrypto/include/hmac_generic.h
new file mode 100644
index 000000000..a749228e3
--- /dev/null
+++ b/src/libcrypto/include/hmac_generic.h
@@ -0,0 +1,60 @@
+#ifndef _HMAC_GENERIC_H
+#define _HMAC_GENERIC_H
+/*
+ * HMAC macro helpers
+ *
+ * Author: JuanJo Ciarlante <jjo-ipsec@mendoza.gov.ar>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ */
+
+#ifndef DIVUP
+#define DIVUP(x,y) ((x + y -1) / y) /* divide, rounding upwards */
+#endif
+#ifndef HMAC_IPAD
+#define HMAC_IPAD 0x36
+#define HMAC_OPAD 0x5C
+#endif
+#define HMAC_SET_KEY_IMPL(func_name, hctx_t, blocksize, func_init, func_update) \
+void func_name(hctx_t *hctx, const u_int8_t * key, int keylen) { \
+ int i;\
+ u_int8_t kb[blocksize]; \
+ for (i = 0; i < DIVUP(keylen*8, 8); i++) { \
+ kb[i] = key[i] ^ HMAC_IPAD; \
+ } \
+ for (; i < blocksize; i++) { \
+ kb[i] = HMAC_IPAD; \
+ } \
+ func_init(&hctx->ictx); \
+ func_update(&hctx->ictx, kb, blocksize); \
+ for (i = 0; i < blocksize; i++) { \
+ kb[i] ^= (HMAC_IPAD ^ HMAC_OPAD); \
+ } \
+ func_init(&hctx->octx); \
+ func_update(&hctx->octx, kb, blocksize); \
+}
+#define HMAC_HASH_IMPL(func_name, hctx_t, ctx_t, ahlen, func_update, func_result ) \
+void func_name(hctx_t *hctx, const u_int8_t * dat, int len, u_int8_t * hash, int hashlen) { \
+ ctx_t ctx; \
+ ctx=hctx->ictx; \
+ if (dat) func_update(&ctx, dat, len); \
+ if (hash) { \
+ u_int8_t hash_buf[ahlen]; \
+ func_result(&ctx, hash_buf, ahlen); \
+ ctx=hctx->octx; \
+ func_update(&ctx, hash_buf, ahlen); \
+ func_result(&ctx, hash, hashlen); \
+ memset(&ctx, 0, sizeof (ctx)); \
+ memset(&hash_buf, 0, sizeof (hash_buf));\
+ } \
+}
+#endif /* _HMAC_GENERIC_H */
diff --git a/src/libcrypto/include/md32_common.h b/src/libcrypto/include/md32_common.h
new file mode 100644
index 000000000..1a404a458
--- /dev/null
+++ b/src/libcrypto/include/md32_common.h
@@ -0,0 +1,607 @@
+/* crypto/md32_common.h */
+/* ====================================================================
+ * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
+ *
+ * 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 above 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 acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED 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 OpenSSL PROJECT OR
+ * ITS 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.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+/*
+ * This is a generic 32 bit "collector" for message digest algorithms.
+ * Whenever needed it collects input character stream into chunks of
+ * 32 bit values and invokes a block function that performs actual hash
+ * calculations.
+ *
+ * Porting guide.
+ *
+ * Obligatory macros:
+ *
+ * DATA_ORDER_IS_BIG_ENDIAN or DATA_ORDER_IS_LITTLE_ENDIAN
+ * this macro defines byte order of input stream.
+ * HASH_CBLOCK
+ * size of a unit chunk HASH_BLOCK operates on.
+ * HASH_LONG
+ * has to be at lest 32 bit wide, if it's wider, then
+ * HASH_LONG_LOG2 *has to* be defined along
+ * HASH_CTX
+ * context structure that at least contains following
+ * members:
+ * typedef struct {
+ * ...
+ * HASH_LONG Nl,Nh;
+ * HASH_LONG data[HASH_LBLOCK];
+ * int num;
+ * ...
+ * } HASH_CTX;
+ * HASH_UPDATE
+ * name of "Update" function, implemented here.
+ * HASH_TRANSFORM
+ * name of "Transform" function, implemented here.
+ * HASH_FINAL
+ * name of "Final" function, implemented here.
+ * HASH_BLOCK_HOST_ORDER
+ * name of "block" function treating *aligned* input message
+ * in host byte order, implemented externally.
+ * HASH_BLOCK_DATA_ORDER
+ * name of "block" function treating *unaligned* input message
+ * in original (data) byte order, implemented externally (it
+ * actually is optional if data and host are of the same
+ * "endianess").
+ * HASH_MAKE_STRING
+ * macro convering context variables to an ASCII hash string.
+ *
+ * Optional macros:
+ *
+ * B_ENDIAN or L_ENDIAN
+ * defines host byte-order.
+ * HASH_LONG_LOG2
+ * defaults to 2 if not states otherwise.
+ * HASH_LBLOCK
+ * assumed to be HASH_CBLOCK/4 if not stated otherwise.
+ * HASH_BLOCK_DATA_ORDER_ALIGNED
+ * alternative "block" function capable of treating
+ * aligned input message in original (data) order,
+ * implemented externally.
+ *
+ * MD5 example:
+ *
+ * #define DATA_ORDER_IS_LITTLE_ENDIAN
+ *
+ * #define HASH_LONG MD5_LONG
+ * #define HASH_LONG_LOG2 MD5_LONG_LOG2
+ * #define HASH_CTX MD5_CTX
+ * #define HASH_CBLOCK MD5_CBLOCK
+ * #define HASH_LBLOCK MD5_LBLOCK
+ * #define HASH_UPDATE MD5_Update
+ * #define HASH_TRANSFORM MD5_Transform
+ * #define HASH_FINAL MD5_Final
+ * #define HASH_BLOCK_HOST_ORDER md5_block_host_order
+ * #define HASH_BLOCK_DATA_ORDER md5_block_data_order
+ *
+ * <appro@fy.chalmers.se>
+ */
+
+#if !defined(DATA_ORDER_IS_BIG_ENDIAN) && !defined(DATA_ORDER_IS_LITTLE_ENDIAN)
+#error "DATA_ORDER must be defined!"
+#endif
+
+#ifndef HASH_CBLOCK
+#error "HASH_CBLOCK must be defined!"
+#endif
+#ifndef HASH_LONG
+#error "HASH_LONG must be defined!"
+#endif
+#ifndef HASH_CTX
+#error "HASH_CTX must be defined!"
+#endif
+
+#ifndef HASH_UPDATE
+#error "HASH_UPDATE must be defined!"
+#endif
+#ifndef HASH_TRANSFORM
+#error "HASH_TRANSFORM must be defined!"
+#endif
+#ifndef HASH_FINAL
+#error "HASH_FINAL must be defined!"
+#endif
+
+#ifndef HASH_BLOCK_HOST_ORDER
+#error "HASH_BLOCK_HOST_ORDER must be defined!"
+#endif
+
+#if 0
+/*
+ * Moved below as it's required only if HASH_BLOCK_DATA_ORDER_ALIGNED
+ * isn't defined.
+ */
+#ifndef HASH_BLOCK_DATA_ORDER
+#error "HASH_BLOCK_DATA_ORDER must be defined!"
+#endif
+#endif
+
+#ifndef HASH_LBLOCK
+#define HASH_LBLOCK (HASH_CBLOCK/4)
+#endif
+
+#ifndef HASH_LONG_LOG2
+#define HASH_LONG_LOG2 2
+#endif
+
+/*
+ * Engage compiler specific rotate intrinsic function if available.
+ */
+#undef ROTATE
+#ifndef PEDANTIC
+# if defined(_MSC_VER)
+# define ROTATE(a,n) _lrotl(a,n)
+# elif defined(__MWERKS__)
+# if defined(__POWERPC__)
+# define ROTATE(a,n) __rlwinm(a,n,0,31)
+# elif defined(__MC68K__)
+ /* Motorola specific tweak. <appro@fy.chalmers.se> */
+# define ROTATE(a,n) ( n<24 ? __rol(a,n) : __ror(a,32-n) )
+# else
+# define ROTATE(a,n) __rol(a,n)
+# endif
+# elif defined(__GNUC__) && __GNUC__>=2 && !defined(NO_ASM) && !defined(NO_INLINE_ASM)
+ /*
+ * Some GNU C inline assembler templates. Note that these are
+ * rotates by *constant* number of bits! But that's exactly
+ * what we need here...
+ *
+ * <appro@fy.chalmers.se>
+ */
+# if defined(__i386)
+# define ROTATE(a,n) ({ register unsigned int ret; \
+ asm ( \
+ "roll %1,%0" \
+ : "=r"(ret) \
+ : "I"(n), "0"(a) \
+ : "cc"); \
+ ret; \
+ })
+# elif defined(__powerpc) || defined(__ppc)
+# define ROTATE(a,n) ({ register unsigned int ret; \
+ asm ( \
+ "rlwinm %0,%1,%2,0,31" \
+ : "=r"(ret) \
+ : "r"(a), "I"(n)); \
+ ret; \
+ })
+# endif
+# endif
+
+/*
+ * Engage compiler specific "fetch in reverse byte order"
+ * intrinsic function if available.
+ */
+# if defined(__GNUC__) && __GNUC__>=2 && !defined(NO_ASM) && !defined(NO_INLINE_ASM)
+ /* some GNU C inline assembler templates by <appro@fy.chalmers.se> */
+# if defined(__i386) && !defined(I386_ONLY)
+# define BE_FETCH32(a) ({ register unsigned int l=(a);\
+ asm ( \
+ "bswapl %0" \
+ : "=r"(l) : "0"(l)); \
+ l; \
+ })
+# elif defined(__powerpc)
+# define LE_FETCH32(a) ({ register unsigned int l; \
+ asm ( \
+ "lwbrx %0,0,%1" \
+ : "=r"(l) \
+ : "r"(a)); \
+ l; \
+ })
+
+# elif defined(__sparc) && defined(ULTRASPARC)
+# define LE_FETCH32(a) ({ register unsigned int l; \
+ asm ( \
+ "lda [%1]#ASI_PRIMARY_LITTLE,%0"\
+ : "=r"(l) \
+ : "r"(a)); \
+ l; \
+ })
+# endif
+# endif
+#endif /* PEDANTIC */
+
+#if HASH_LONG_LOG2==2 /* Engage only if sizeof(HASH_LONG)== 4 */
+/* A nice byte order reversal from Wei Dai <weidai@eskimo.com> */
+#ifdef ROTATE
+/* 5 instructions with rotate instruction, else 9 */
+#define REVERSE_FETCH32(a,l) ( \
+ l=*(const HASH_LONG *)(a), \
+ ((ROTATE(l,8)&0x00FF00FF)|(ROTATE((l&0x00FF00FF),24))) \
+ )
+#else
+/* 6 instructions with rotate instruction, else 8 */
+#define REVERSE_FETCH32(a,l) ( \
+ l=*(const HASH_LONG *)(a), \
+ l=(((l>>8)&0x00FF00FF)|((l&0x00FF00FF)<<8)), \
+ ROTATE(l,16) \
+ )
+/*
+ * Originally the middle line started with l=(((l&0xFF00FF00)>>8)|...
+ * It's rewritten as above for two reasons:
+ * - RISCs aren't good at long constants and have to explicitely
+ * compose 'em with several (well, usually 2) instructions in a
+ * register before performing the actual operation and (as you
+ * already realized:-) having same constant should inspire the
+ * compiler to permanently allocate the only register for it;
+ * - most modern CPUs have two ALUs, but usually only one has
+ * circuitry for shifts:-( this minor tweak inspires compiler
+ * to schedule shift instructions in a better way...
+ *
+ * <appro@fy.chalmers.se>
+ */
+#endif
+#endif
+
+#ifndef ROTATE
+#define ROTATE(a,n) (((a)<<(n))|(((a)&0xffffffff)>>(32-(n))))
+#endif
+
+/*
+ * Make some obvious choices. E.g., HASH_BLOCK_DATA_ORDER_ALIGNED
+ * and HASH_BLOCK_HOST_ORDER ought to be the same if input data
+ * and host are of the same "endianess". It's possible to mask
+ * this with blank #define HASH_BLOCK_DATA_ORDER though...
+ *
+ * <appro@fy.chalmers.se>
+ */
+#if defined(B_ENDIAN)
+# if defined(DATA_ORDER_IS_BIG_ENDIAN)
+# if !defined(HASH_BLOCK_DATA_ORDER_ALIGNED) && HASH_LONG_LOG2==2
+# define HASH_BLOCK_DATA_ORDER_ALIGNED HASH_BLOCK_HOST_ORDER
+# endif
+# elif defined(DATA_ORDER_IS_LITTLE_ENDIAN)
+# ifndef HOST_FETCH32
+# ifdef LE_FETCH32
+# define HOST_FETCH32(p,l) LE_FETCH32(p)
+# elif defined(REVERSE_FETCH32)
+# define HOST_FETCH32(p,l) REVERSE_FETCH32(p,l)
+# endif
+# endif
+# endif
+#elif defined(L_ENDIAN)
+# if defined(DATA_ORDER_IS_LITTLE_ENDIAN)
+# if !defined(HASH_BLOCK_DATA_ORDER_ALIGNED) && HASH_LONG_LOG2==2
+# define HASH_BLOCK_DATA_ORDER_ALIGNED HASH_BLOCK_HOST_ORDER
+# endif
+# elif defined(DATA_ORDER_IS_BIG_ENDIAN)
+# ifndef HOST_FETCH32
+# ifdef BE_FETCH32
+# define HOST_FETCH32(p,l) BE_FETCH32(p)
+# elif defined(REVERSE_FETCH32)
+# define HOST_FETCH32(p,l) REVERSE_FETCH32(p,l)
+# endif
+# endif
+# endif
+#endif
+
+#if !defined(HASH_BLOCK_DATA_ORDER_ALIGNED)
+#ifndef HASH_BLOCK_DATA_ORDER
+#error "HASH_BLOCK_DATA_ORDER must be defined!"
+#endif
+#endif
+
+#if defined(DATA_ORDER_IS_BIG_ENDIAN)
+
+#define HOST_c2l(c,l) (l =(((unsigned long)(*((c)++)))<<24), \
+ l|=(((unsigned long)(*((c)++)))<<16), \
+ l|=(((unsigned long)(*((c)++)))<< 8), \
+ l|=(((unsigned long)(*((c)++))) ), \
+ l)
+#define HOST_p_c2l(c,l,n) { \
+ switch (n) { \
+ case 0: l =((unsigned long)(*((c)++)))<<24; \
+ case 1: l|=((unsigned long)(*((c)++)))<<16; \
+ case 2: l|=((unsigned long)(*((c)++)))<< 8; \
+ case 3: l|=((unsigned long)(*((c)++))); \
+ } }
+#define HOST_p_c2l_p(c,l,sc,len) { \
+ switch (sc) { \
+ case 0: l =((unsigned long)(*((c)++)))<<24; \
+ if (--len == 0) break; \
+ case 1: l|=((unsigned long)(*((c)++)))<<16; \
+ if (--len == 0) break; \
+ case 2: l|=((unsigned long)(*((c)++)))<< 8; \
+ } }
+/* NOTE the pointer is not incremented at the end of this */
+#define HOST_c2l_p(c,l,n) { \
+ l=0; (c)+=n; \
+ switch (n) { \
+ case 3: l =((unsigned long)(*(--(c))))<< 8; \
+ case 2: l|=((unsigned long)(*(--(c))))<<16; \
+ case 1: l|=((unsigned long)(*(--(c))))<<24; \
+ } }
+#define HOST_l2c(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
+ *((c)++)=(unsigned char)(((l)>>16)&0xff), \
+ *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
+ *((c)++)=(unsigned char)(((l) )&0xff), \
+ l)
+
+#elif defined(DATA_ORDER_IS_LITTLE_ENDIAN)
+
+#define HOST_c2l(c,l) (l =(((unsigned long)(*((c)++))) ), \
+ l|=(((unsigned long)(*((c)++)))<< 8), \
+ l|=(((unsigned long)(*((c)++)))<<16), \
+ l|=(((unsigned long)(*((c)++)))<<24), \
+ l)
+#define HOST_p_c2l(c,l,n) { \
+ switch (n) { \
+ case 0: l =((unsigned long)(*((c)++))); \
+ case 1: l|=((unsigned long)(*((c)++)))<< 8; \
+ case 2: l|=((unsigned long)(*((c)++)))<<16; \
+ case 3: l|=((unsigned long)(*((c)++)))<<24; \
+ } }
+#define HOST_p_c2l_p(c,l,sc,len) { \
+ switch (sc) { \
+ case 0: l =((unsigned long)(*((c)++))); \
+ if (--len == 0) break; \
+ case 1: l|=((unsigned long)(*((c)++)))<< 8; \
+ if (--len == 0) break; \
+ case 2: l|=((unsigned long)(*((c)++)))<<16; \
+ } }
+/* NOTE the pointer is not incremented at the end of this */
+#define HOST_c2l_p(c,l,n) { \
+ l=0; (c)+=n; \
+ switch (n) { \
+ case 3: l =((unsigned long)(*(--(c))))<<16; \
+ case 2: l|=((unsigned long)(*(--(c))))<< 8; \
+ case 1: l|=((unsigned long)(*(--(c)))); \
+ } }
+#define HOST_l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
+ *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
+ *((c)++)=(unsigned char)(((l)>>16)&0xff), \
+ *((c)++)=(unsigned char)(((l)>>24)&0xff), \
+ l)
+
+#endif
+
+/*
+ * Time for some action:-)
+ */
+
+void HASH_UPDATE (HASH_CTX *c, const void *data_, unsigned long len)
+ {
+ const unsigned char *data=data_;
+ register HASH_LONG * p;
+ register unsigned long l;
+ int sw,sc,ew,ec;
+
+ if (len==0) return;
+
+ l=(c->Nl+(len<<3))&0xffffffffL;
+ /* 95-05-24 eay Fixed a bug with the overflow handling, thanks to
+ * Wei Dai <weidai@eskimo.com> for pointing it out. */
+ if (l < c->Nl) /* overflow */
+ c->Nh++;
+ c->Nh+=(len>>29);
+ c->Nl=l;
+
+ if (c->num != 0)
+ {
+ p=c->data;
+ sw=c->num>>2;
+ sc=c->num&0x03;
+
+ if ((c->num+len) >= HASH_CBLOCK)
+ {
+ l=p[sw]; HOST_p_c2l(data,l,sc); p[sw++]=l;
+ for (; sw<HASH_LBLOCK; sw++)
+ {
+ HOST_c2l(data,l); p[sw]=l;
+ }
+ HASH_BLOCK_HOST_ORDER (c,p,1);
+ len-=(HASH_CBLOCK-c->num);
+ c->num=0;
+ /* drop through and do the rest */
+ }
+ else
+ {
+ c->num+=len;
+ if ((sc+len) < 4) /* ugly, add char's to a word */
+ {
+ l=p[sw]; HOST_p_c2l_p(data,l,sc,len); p[sw]=l;
+ }
+ else
+ {
+ ew=(c->num>>2);
+ ec=(c->num&0x03);
+ l=p[sw]; HOST_p_c2l(data,l,sc); p[sw++]=l;
+ for (; sw < ew; sw++)
+ {
+ HOST_c2l(data,l); p[sw]=l;
+ }
+ if (ec)
+ {
+ HOST_c2l_p(data,l,ec); p[sw]=l;
+ }
+ }
+ return;
+ }
+ }
+
+ sw=len/HASH_CBLOCK;
+ if (sw > 0)
+ {
+#if defined(HASH_BLOCK_DATA_ORDER_ALIGNED)
+ /*
+ * Note that HASH_BLOCK_DATA_ORDER_ALIGNED gets defined
+ * only if sizeof(HASH_LONG)==4.
+ */
+ if ((((unsigned long)data)%4) == 0)
+ {
+ /* data is properly aligned so that we can cast it: */
+ HASH_BLOCK_DATA_ORDER_ALIGNED (c,(HASH_LONG *)data,sw);
+ sw*=HASH_CBLOCK;
+ data+=sw;
+ len-=sw;
+ }
+ else
+#if !defined(HASH_BLOCK_DATA_ORDER)
+ while (sw--)
+ {
+ memcpy (p=c->data,data,HASH_CBLOCK);
+ HASH_BLOCK_DATA_ORDER_ALIGNED(c,p,1);
+ data+=HASH_CBLOCK;
+ len-=HASH_CBLOCK;
+ }
+#endif
+#endif
+#if defined(HASH_BLOCK_DATA_ORDER)
+ {
+ HASH_BLOCK_DATA_ORDER(c,data,sw);
+ sw*=HASH_CBLOCK;
+ data+=sw;
+ len-=sw;
+ }
+#endif
+ }
+
+ if (len!=0)
+ {
+ p = c->data;
+ c->num = len;
+ ew=len>>2; /* words to copy */
+ ec=len&0x03;
+ for (; ew; ew--,p++)
+ {
+ HOST_c2l(data,l); *p=l;
+ }
+ HOST_c2l_p(data,l,ec);
+ *p=l;
+ }
+ }
+
+
+void HASH_TRANSFORM (HASH_CTX *c, const unsigned char *data)
+ {
+#if defined(HASH_BLOCK_DATA_ORDER_ALIGNED)
+ if ((((unsigned long)data)%4) == 0)
+ /* data is properly aligned so that we can cast it: */
+ HASH_BLOCK_DATA_ORDER_ALIGNED (c,(HASH_LONG *)data,1);
+ else
+#if !defined(HASH_BLOCK_DATA_ORDER)
+ {
+ memcpy (c->data,data,HASH_CBLOCK);
+ HASH_BLOCK_DATA_ORDER_ALIGNED (c,c->data,1);
+ }
+#endif
+#endif
+#if defined(HASH_BLOCK_DATA_ORDER)
+ HASH_BLOCK_DATA_ORDER (c,data,1);
+#endif
+ }
+
+
+void HASH_FINAL (unsigned char *md, HASH_CTX *c)
+ {
+ register HASH_LONG *p;
+ register unsigned long l;
+ register int i,j;
+ static const unsigned char end[4]={0x80,0x00,0x00,0x00};
+ const unsigned char *cp=end;
+
+ /* c->num should definitly have room for at least one more byte. */
+ p=c->data;
+ i=c->num>>2;
+ j=c->num&0x03;
+
+#if 0
+ /* purify often complains about the following line as an
+ * Uninitialized Memory Read. While this can be true, the
+ * following p_c2l macro will reset l when that case is true.
+ * This is because j&0x03 contains the number of 'valid' bytes
+ * already in p[i]. If and only if j&0x03 == 0, the UMR will
+ * occur but this is also the only time p_c2l will do
+ * l= *(cp++) instead of l|= *(cp++)
+ * Many thanks to Alex Tang <altitude@cic.net> for pickup this
+ * 'potential bug' */
+#ifdef PURIFY
+ if (j==0) p[i]=0; /* Yeah, but that's not the way to fix it:-) */
+#endif
+ l=p[i];
+#else
+ l = (j==0) ? 0 : p[i];
+#endif
+ HOST_p_c2l(cp,l,j); p[i++]=l; /* i is the next 'undefined word' */
+
+ if (i>(HASH_LBLOCK-2)) /* save room for Nl and Nh */
+ {
+ if (i<HASH_LBLOCK) p[i]=0;
+ HASH_BLOCK_HOST_ORDER (c,p,1);
+ i=0;
+ }
+ for (; i<(HASH_LBLOCK-2); i++)
+ p[i]=0;
+
+#if defined(DATA_ORDER_IS_BIG_ENDIAN)
+ p[HASH_LBLOCK-2]=c->Nh;
+ p[HASH_LBLOCK-1]=c->Nl;
+#elif defined(DATA_ORDER_IS_LITTLE_ENDIAN)
+ p[HASH_LBLOCK-2]=c->Nl;
+ p[HASH_LBLOCK-1]=c->Nh;
+#endif
+ HASH_BLOCK_HOST_ORDER (c,p,1);
+
+#ifndef HASH_MAKE_STRING
+#error "HASH_MAKE_STRING must be defined!"
+#else
+ HASH_MAKE_STRING(c,md);
+#endif
+
+ c->num=0;
+ /* clear stuff, HASH_BLOCK may be leaving some stuff on the stack
+ * but I'm not worried :-)
+ memset((void *)c,0,sizeof(HASH_CTX));
+ */
+ }
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-15 19:36:56 +0000