/* sha256.c - Functions to compute SHA256 and SHA224 message digest of files or
memory blocks according to the NIST specification FIPS-180-2.
- Copyright (C) 2005-2006, 2008-2012 Free Software Foundation, Inc.
+ Copyright (C) 2005-2006, 2008-2013 Free Software Foundation, Inc.
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
#include <config.h>
+#if HAVE_OPENSSL_SHA256
+# define GL_OPENSSL_INLINE _GL_EXTERN_INLINE
+#endif
#include "sha256.h"
#include <stdalign.h>
# error "invalid BLOCKSIZE"
#endif
+#if ! HAVE_OPENSSL_SHA256
/* This array contains the bytes used to pad the buffer to the next
64-byte boundary. */
static const unsigned char fillbuf[64] = { 0x80, 0 /* , 0, 0, ... */ };
/* Copy the value from v into the memory location pointed to by *cp,
If your architecture allows unaligned access this is equivalent to
* (uint32_t *) cp = v */
-static inline void
+static void
set_uint32 (char *cp, uint32_t v)
{
memcpy (cp, &v, sizeof v);
sha256_conclude_ctx (ctx);
return sha224_read_ctx (ctx, resbuf);
}
+#endif
/* Compute SHA256 message digest for bytes read from STREAM. The
resulting message digest number will be written into the 32 bytes
return 0;
}
+#if ! HAVE_OPENSSL_SHA256
/* Compute SHA512 message digest for LEN bytes beginning at BUFFER. The
result is always in little endian byte order, so that a byte-wise
output yields to the wanted ASCII representation of the message
uint32_t f = ctx->state[5];
uint32_t g = ctx->state[6];
uint32_t h = ctx->state[7];
+ uint32_t lolen = len;
/* First increment the byte count. FIPS PUB 180-2 specifies the possible
length of the file up to 2^64 bits. Here we only compute the
number of bytes. Do a double word increment. */
- ctx->total[0] += len;
- if (ctx->total[0] < len)
- ++ctx->total[1];
+ ctx->total[0] += lolen;
+ ctx->total[1] += (len >> 31 >> 1) + (ctx->total[0] < lolen);
#define rol(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
#define S0(x) (rol(x,25)^rol(x,14)^(x>>3))
h = ctx->state[7] += h;
}
}
+#endif