/* crypto/md32_common.h */
/* ====================================================================
- * Copyright (c) 1999-2006 The OpenSSL Project. All rights reserved.
+ * Copyright (c) 1999-2007 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.
+ * 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
*
*/
-/*
+/*-
* 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
* Obligatory macros:
*
* DATA_ORDER_IS_BIG_ENDIAN or DATA_ORDER_IS_LITTLE_ENDIAN
- * this macro defines byte order of input stream.
+ * this macro defines byte order of input stream.
* HASH_CBLOCK
- * size of a unit chunk HASH_BLOCK operates on.
+ * 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
+ * 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;
- * either {
- * HASH_LONG data[HASH_LBLOCK];
- * unsigned char data[HASH_CBLOCK];
- * };
- * unsigned int num;
- * ...
- * } HASH_CTX;
- * data[] vector is expected to be zeroed upon first call to
- * HASH_UPDATE.
+ * context structure that at least contains following
+ * members:
+ * typedef struct {
+ * ...
+ * HASH_LONG Nl,Nh;
+ * either {
+ * HASH_LONG data[HASH_LBLOCK];
+ * unsigned char data[HASH_CBLOCK];
+ * };
+ * unsigned int num;
+ * ...
+ * } HASH_CTX;
+ * data[] vector is expected to be zeroed upon first call to
+ * HASH_UPDATE.
* HASH_UPDATE
- * name of "Update" function, implemented here.
+ * name of "Update" function, implemented here.
* HASH_TRANSFORM
- * name of "Transform" function, implemented here.
+ * name of "Transform" function, implemented here.
* HASH_FINAL
- * name of "Final" function, implemented here.
+ * name of "Final" function, implemented here.
* HASH_BLOCK_DATA_ORDER
- * name of "block" function capable of treating *unaligned* input
- * message in original (data) byte order, implemented externally.
+ * name of "block" function capable of treating *unaligned* input
+ * message in original (data) byte order, implemented externally.
* HASH_MAKE_STRING
- * macro convering context variables to an ASCII hash string.
+ * macro convering context variables to an ASCII hash string.
*
* MD5 example:
*
- * #define DATA_ORDER_IS_LITTLE_ENDIAN
+ * #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_UPDATE MD5_Update
- * #define HASH_TRANSFORM MD5_Transform
- * #define HASH_FINAL MD5_Final
- * #define HASH_BLOCK_DATA_ORDER md5_block_data_order
+ * #define HASH_LONG MD5_LONG
+ * #define HASH_LONG_LOG2 MD5_LONG_LOG2
+ * #define HASH_CTX MD5_CTX
+ * #define HASH_CBLOCK MD5_CBLOCK
+ * #define HASH_UPDATE MD5_Update
+ * #define HASH_TRANSFORM MD5_Transform
+ * #define HASH_FINAL MD5_Final
+ * #define HASH_BLOCK_DATA_ORDER md5_block_data_order
*
- * <appro@fy.chalmers.se>
+ *
<appro@fy.chalmers.se>
*/
+#include <openssl/crypto.h>
+
#if !defined(DATA_ORDER_IS_BIG_ENDIAN) && !defined(DATA_ORDER_IS_LITTLE_ENDIAN)
-#error "DATA_ORDER must be defined!"
+# error "DATA_ORDER must be defined!"
#endif
#ifndef HASH_CBLOCK
-#error "HASH_CBLOCK must be defined!"
+# error "HASH_CBLOCK must be defined!"
#endif
#ifndef HASH_LONG
-#error "HASH_LONG must be defined!"
+# error "HASH_LONG must be defined!"
#endif
#ifndef HASH_CTX
-#error "HASH_CTX must be defined!"
+# error "HASH_CTX must be defined!"
#endif
#ifndef HASH_UPDATE
-#error "HASH_UPDATE must be defined!"
+# error "HASH_UPDATE must be defined!"
#endif
#ifndef HASH_TRANSFORM
-#error "HASH_TRANSFORM must be defined!"
+# error "HASH_TRANSFORM must be defined!"
#endif
#ifndef HASH_FINAL
-#error "HASH_FINAL must be defined!"
+# error "HASH_FINAL must be defined!"
#endif
#ifndef HASH_BLOCK_DATA_ORDER
-#error "HASH_BLOCK_DATA_ORDER must be defined!"
+# error "HASH_BLOCK_DATA_ORDER must be defined!"
#endif
/*
*/
#undef ROTATE
#ifndef PEDANTIC
-# if defined(_MSC_VER) || defined(__ICC)
-# define ROTATE(a,n) _lrotl(a,n)
+# if defined(_MSC_VER)
+# define ROTATE(a,n) _lrotl(a,n)
+# elif defined(__ICC)
+# define ROTATE(a,n) _rotl(a,n)
# elif defined(__MWERKS__)
# if defined(__POWERPC__)
-# define ROTATE(a,n) __rlwinm(a,n,0,31)
+# 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) )
+# define ROTATE(a,n) ( n<24 ? __rol(a,n) : __ror(a,32-n) )
# else
-# define ROTATE(a,n) __rol(a,n)
+# define ROTATE(a,n) __rol(a,n)
# endif
# elif defined(__GNUC__) && __GNUC__>=2 && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_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>
+ *
<appro@fy.chalmers.se>
*/
# if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__)
-# define ROTATE(a,n) ({ register unsigned int ret; \
- asm ( \
- "roll %1,%0" \
- : "=r"(ret) \
- : "I"(n), "0"(a) \
- : "cc"); \
- ret; \
- })
+# define ROTATE(a,n) ({ register unsigned int ret; \
+ asm ( \
+ "roll %1,%0" \
+ : "=r"(ret) \
+ : "I"(n), "0"((unsigned int)(a)) \
+ : "cc"); \
+ ret; \
+ })
# elif defined(_ARCH_PPC) || defined(_ARCH_PPC64) || \
- defined(__powerpc) || defined(__ppc__) || defined(__powerpc64__)
-# define ROTATE(a,n) ({ register unsigned int ret; \
- asm ( \
- "rlwinm %0,%1,%2,0,31" \
- : "=r"(ret) \
- : "r"(a), "I"(n)); \
- ret; \
- })
+ defined(__powerpc) || defined(__ppc__) || defined(__powerpc64__)
+# define ROTATE(a,n) ({ register unsigned int ret; \
+ asm ( \
+ "rlwinm %0,%1,%2,0,31" \
+ : "=r"(ret) \
+ : "r"(a), "I"(n)); \
+ ret; \
+ })
+# elif defined(__s390x__)
+# define ROTATE(a,n) ({ register unsigned int ret; \
+ asm ("rll %0,%1,%2" \
+ : "=r"(ret) \
+ : "r"(a), "I"(n)); \
+ ret; \
+ })
# endif
# endif
-#endif /* PEDANTIC */
+#endif /* PEDANTIC */
#ifndef ROTATE
-#define ROTATE(a,n) (((a)<<(n))|(((a)&0xffffffff)>>(32-(n))))
+# define ROTATE(a,n) (((a)<<(n))|(((a)&0xffffffff)>>(32-(n))))
#endif
#if defined(DATA_ORDER_IS_BIG_ENDIAN)
-#ifndef PEDANTIC
-# if defined(__GNUC__) && __GNUC__>=2 && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM)
-# if ((defined(__i386) || defined(__i386__)) && !defined(I386_ONLY)) || \
+# ifndef PEDANTIC
+# if defined(__GNUC__) && __GNUC__>=2 && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM)
+# if ((defined(__i386) || defined(__i386__)) && !defined(I386_ONLY)) || \
(defined(__x86_64) || defined(__x86_64__))
-# if !defined(B_ENDIAN)
+# if !defined(B_ENDIAN)
/*
* This gives ~30-40% performance improvement in SHA-256 compiled
* with gcc [on P4]. Well, first macro to be frank. We can pull
* this trick on x86* platforms only, because these CPUs can fetch
* unaligned data without raising an exception.
*/
-# define HOST_c2l(c,l) ({ unsigned int r=*((const unsigned int *)(c)); \
- asm ("bswapl %0":"=r"(r):"0"(r)); \
- (c)+=4; (l)=r; })
-# define HOST_l2c(l,c) ({ unsigned int r=(l); \
- asm ("bswapl %0":"=r"(r):"0"(r)); \
- *((unsigned int *)(c))=r; (c)+=4; r; })
+# define HOST_c2l(c,l) ({ unsigned int r=*((const unsigned int *)(c)); \
+ asm ("bswapl %0":"=r"(r):"0"(r)); \
+ (c)+=4; (l)=r; })
+# define HOST_l2c(l,c) ({ unsigned int r=(l); \
+ asm ("bswapl %0":"=r"(r):"0"(r)); \
+ *((unsigned int *)(c))=r; (c)+=4; r; })
+# endif
+# elif defined(__aarch64__)
+# if defined(__BYTE_ORDER__)
+# if defined(__ORDER_LITTLE_ENDIAN__) && __BYTE_ORDER__==__ORDER_LITTLE_ENDIAN__
+# define HOST_c2l(c,l) ({ unsigned int r; \
+ asm ("rev %w0,%w1" \
+ :"=r"(r) \
+ :"r"(*((const unsigned int *)(c))));\
+ (c)+=4; (l)=r; })
+# define HOST_l2c(l,c) ({ unsigned int r; \
+ asm ("rev %w0,%w1" \
+ :"=r"(r) \
+ :"r"((unsigned int)(l)));\
+ *((unsigned int *)(c))=r; (c)+=4; r; })
+# elif defined(__ORDER_BIG_ENDIAN__) && __BYTE_ORDER__==__ORDER_BIG_ENDIAN__
+# define HOST_c2l(c,l) ((l)=*((const unsigned int *)(c)), (c)+=4, (l))
+# define HOST_l2c(l,c) (*((unsigned int *)(c))=(l), (c)+=4, (l))
+# endif
+# endif
# endif
# endif
+# if defined(__s390__) || defined(__s390x__)
+# define HOST_c2l(c,l) ((l)=*((const unsigned int *)(c)), (c)+=4, (l))
+# define HOST_l2c(l,c) (*((unsigned int *)(c))=(l), (c)+=4, (l))
+# endif
# endif
-#endif
-#ifndef HOST_c2l
-#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)
-#endif
-#ifndef HOST_l2c
-#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)
-#endif
+# ifndef HOST_c2l
+# define HOST_c2l(c,l) (l =(((unsigned long)(*((c)++)))<<24), \
+ l|=(((unsigned long)(*((c)++)))<<16), \
+ l|=(((unsigned long)(*((c)++)))<< 8), \
+ l|=(((unsigned long)(*((c)++))) ) )
+# endif
+# ifndef HOST_l2c
+# 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)
+# endif
#elif defined(DATA_ORDER_IS_LITTLE_ENDIAN)
-#if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__)
-# ifndef B_ENDIAN
- /* See comment in DATA_ORDER_IS_BIG_ENDIAN section. */
-# define HOST_c2l(c,l) ((l)=*((const unsigned int *)(c)), (c)+=4, l)
-# define HOST_l2c(l,c) (*((unsigned int *)(c))=(l), (c)+=4, l)
+# ifndef PEDANTIC
+# if defined(__GNUC__) && __GNUC__>=2 && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM)
+# if defined(__s390x__)
+# define HOST_c2l(c,l) ({ asm ("lrv %0,%1" \
+ :"=d"(l) :"m"(*(const unsigned int *)(c)));\
+ (c)+=4; (l); })
+# define HOST_l2c(l,c) ({ asm ("strv %1,%0" \
+ :"=m"(*(unsigned int *)(c)) :"d"(l));\
+ (c)+=4; (l); })
+# endif
+# endif
+# if defined(__i386) || defined(__i386__) || defined(__x86_64) || defined(__x86_64__)
+# ifndef B_ENDIAN
+ /* See comment in DATA_ORDER_IS_BIG_ENDIAN section. */
+# define HOST_c2l(c,l) ((l)=*((const unsigned int *)(c)), (c)+=4, l)
+# define HOST_l2c(l,c) (*((unsigned int *)(c))=(l), (c)+=4, l)
+# endif
+# endif
# endif
-#endif
-#ifndef HOST_c2l
-#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)
-#endif
-#ifndef HOST_l2c
-#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
+# ifndef HOST_c2l
+# define HOST_c2l(c,l) (l =(((unsigned long)(*((c)++))) ), \
+ l|=(((unsigned long)(*((c)++)))<< 8), \
+ l|=(((unsigned long)(*((c)++)))<<16), \
+ l|=(((unsigned long)(*((c)++)))<<24) )
+# endif
+# ifndef HOST_l2c
+# 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
#endif
* Time for some action:-)
*/
-int HASH_UPDATE (HASH_CTX *c, const void *data_, size_t len)
- {
- const unsigned char *data=data_;
- unsigned char *p;
- HASH_LONG l;
- size_t n;
-
- if (len==0) return 1;
-
- l=(c->Nl+(((HASH_LONG)len)<<3))&0xffffffffUL;
- /* 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); /* might cause compiler warning on 16-bit */
- c->Nl=l;
-
- n = c->num;
- if (n != 0)
- {
- p=(unsigned char *)c->data;
-
- if ((n+len) >= HASH_CBLOCK)
- {
- memcpy (p+n,data,HASH_CBLOCK-n);
- HASH_BLOCK_DATA_ORDER (c,p,1);
- n = HASH_CBLOCK-n;
- data += n;
- len -= n;
- c->num = 0;
- memset (p,0,HASH_CBLOCK); /* keep it zeroed */
- }
- else
- {
- memcpy (p+n,data,len);
- c->num += (unsigned int)len;
- return 1;
- }
- }
-
- n = len/HASH_CBLOCK;
- if (n > 0)
- {
- HASH_BLOCK_DATA_ORDER (c,data,n);
- n *= HASH_CBLOCK;
- data += n;
- len -= n;
- }
-
- if (len != 0)
- {
- p = (unsigned char *)c->data;
- c->num = len;
- memcpy (p,data,len);
- }
- return 1;
- }
-
-
-void HASH_TRANSFORM (HASH_CTX *c, const unsigned char *data)
- {
- HASH_BLOCK_DATA_ORDER (c,data,1);
- }
+int HASH_UPDATE(HASH_CTX *c, const void *data_, size_t len)
+{
+ const unsigned char *data = data_;
+ unsigned char *p;
+ HASH_LONG l;
+ size_t n;
+ if (len == 0)
+ return 1;
-int HASH_FINAL (unsigned char *md, HASH_CTX *c)
- {
- unsigned char *p = (unsigned char *)c->data;
- size_t n = c->num;
-
- p[n] = 0x80; /* there is always room for one */
- n++;
-
- if (n > (HASH_CBLOCK-8))
- {
- HASH_BLOCK_DATA_ORDER (c,p,1);
- memset (p,0,HASH_CBLOCK);
- }
-
- p += HASH_CBLOCK-8;
+ l = (c->Nl + (((HASH_LONG) len) << 3)) & 0xffffffffUL;
+ /*
+ * 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 += (HASH_LONG) (len >> 29); /* might cause compiler warning on
+ * 16-bit */
+ c->Nl = l;
+
+ n = c->num;
+ if (n != 0) {
+ p = (unsigned char *)c->data;
+
+ if (len >= HASH_CBLOCK || len + n >= HASH_CBLOCK) {
+ memcpy(p + n, data, HASH_CBLOCK - n);
+ HASH_BLOCK_DATA_ORDER(c, p, 1);
+ n = HASH_CBLOCK - n;
+ data += n;
+ len -= n;
+ c->num = 0;
+ /*
+ * We use memset rather than OPENSSL_cleanse() here deliberately.
+ * Using OPENSSL_cleanse() here could be a performance issue. It
+ * will get properly cleansed on finalisation so this isn't a
+ * security problem.
+ */
+ memset(p, 0, HASH_CBLOCK); /* keep it zeroed */
+ } else {
+ memcpy(p + n, data, len);
+ c->num += (unsigned int)len;
+ return 1;
+ }
+ }
+
+ n = len / HASH_CBLOCK;
+ if (n > 0) {
+ HASH_BLOCK_DATA_ORDER(c, data, n);
+ n *= HASH_CBLOCK;
+ data += n;
+ len -= n;
+ }
+
+ if (len != 0) {
+ p = (unsigned char *)c->data;
+ c->num = (unsigned int)len;
+ memcpy(p, data, len);
+ }
+ return 1;
+}
+
+void HASH_TRANSFORM(HASH_CTX *c, const unsigned char *data)
+{
+ HASH_BLOCK_DATA_ORDER(c, data, 1);
+}
+
+int HASH_FINAL(unsigned char *md, HASH_CTX *c)
+{
+ unsigned char *p = (unsigned char *)c->data;
+ size_t n = c->num;
+
+ p[n] = 0x80; /* there is always room for one */
+ n++;
+
+ if (n > (HASH_CBLOCK - 8)) {
+ memset(p + n, 0, HASH_CBLOCK - n);
+ n = 0;
+ HASH_BLOCK_DATA_ORDER(c, p, 1);
+ }
+ memset(p + n, 0, HASH_CBLOCK - 8 - n);
+
+ p += HASH_CBLOCK - 8;
#if defined(DATA_ORDER_IS_BIG_ENDIAN)
- (void)HOST_l2c(c->Nh,p);
- (void)HOST_l2c(c->Nl,p);
+ (void)HOST_l2c(c->Nh, p);
+ (void)HOST_l2c(c->Nl, p);
#elif defined(DATA_ORDER_IS_LITTLE_ENDIAN)
- (void)HOST_l2c(c->Nl,p);
- (void)HOST_l2c(c->Nh,p);
+ (void)HOST_l2c(c->Nl, p);
+ (void)HOST_l2c(c->Nh, p);
#endif
- p -= HASH_CBLOCK;
- HASH_BLOCK_DATA_ORDER (c,p,1);
- c->num=0;
- memset (p,0,HASH_CBLOCK);
+ p -= HASH_CBLOCK;
+ HASH_BLOCK_DATA_ORDER(c, p, 1);
+ c->num = 0;
+ OPENSSL_cleanse(p, HASH_CBLOCK);
#ifndef HASH_MAKE_STRING
-#error "HASH_MAKE_STRING must be defined!"
+# error "HASH_MAKE_STRING must be defined!"
#else
- HASH_MAKE_STRING(c,md);
+ HASH_MAKE_STRING(c, md);
#endif
- return 1;
- }
+ return 1;
+}
#ifndef MD32_REG_T
-#define MD32_REG_T long
+# if defined(__alpha) || defined(__sparcv9) || defined(__mips)
+# define MD32_REG_T long
/*
* This comment was originaly written for MD5, which is why it
* discusses A-D. But it basically applies to all 32-bit digests,
* *either* case. Now declaring 'em long excuses the compiler
* from keeping 32 MSBs zeroed resulting in 13% performance
* improvement under SPARC Solaris7/64 and 5% under AlphaLinux.
- * Well, to be honest it should say that this *prevents*
+ * Well, to be honest it should say that this *prevents*
* performance degradation.
- * <appro@fy.chalmers.se>
- * Apparently there're LP64 compilers that generate better
- * code if A-D are declared int. Most notably GCC-x86_64
- * generates better code.
- * <appro@fy.chalmers.se>
+ * <appro@fy.chalmers.se>
+ */
+# else
+/*
+ * Above is not absolute and there are LP64 compilers that
+ * generate better code if MD32_REG_T is defined int. The above
+ * pre-processor condition reflects the circumstances under which
+ * the conclusion was made and is subject to further extension.
+ * <appro@fy.chalmers.se>
*/
+# define MD32_REG_T int
+# endif
#endif
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