@@ -1,3 +1,22 @@
+2015-03-27 Shawn Landden <shawn@churchofgit.com>
+
+ * crypt/sha2.h, crypt/Versions: new header for -lcrypt, with new exports.
+ * crypt/sha512.c, sha256.c sha512.c sha512.h:
+ New functions: sha384_finish(), sha224_finish(), sha256(), sha512()
+ Add crypt/align.h, *_finish() functions no longer require aligned digest.
+ *_finish() functions now return pointer to digest.
+ sha256_update(), sha512_update() now return pointer to data parameter.
+ Rename struct sha256_ctx => sha256_ctx, and struct sha512_ctx => sha512_ctx.
+ Move sha256_ctx.buflen after sha256_ctx.buffer so that sha256_ctx.buffer
+ is 128-bit aligned.
+ Add padding to sha512_ctx so that sha512_ctx.buffer is 128-bit aligned.
+ (sha256_update, sha512_update, sha256_finish, sha224_finish, sha512_finish,
+ sha384_finish): make pointer arguments __restrict.
+ (__sha256_process_bytes, __sha512_process_bytes): change parameter order to match
+ sha256_update(), sha512_update().
+ * sysdeps: Add to ABI.
+ * manual/crypt.texi: Add documentation.
+
2015-03-08 Paul Pluzhnikov <ppluzhnikov@google.com>
[BZ #16734]
@@ -22,13 +22,13 @@ subdir := crypt
include ../Makeconfig
-headers := crypt.h
+headers := crypt.h sha2.h
extra-libs := libcrypt
extra-libs-others := $(extra-libs)
libcrypt-routines := crypt-entry md5-crypt sha256-crypt sha512-crypt crypt \
- crypt_util
+ crypt_util sha256 sha512
tests := cert md5c-test sha256c-test sha512c-test badsalttest
@@ -42,7 +42,7 @@ CPPFLAGS-sha512-crypt.c = -DUSE_NSS -I$(shell nss-config --includedir)
CPPFLAGS-md5-crypt.c = -DUSE_NSS -I$(shell nss-config --includedir)
LDLIBS-crypt.so = -lfreebl3
else
-libcrypt-routines += md5 sha256 sha512
+libcrypt-routines += md5
tests += md5test sha256test sha512test
@@ -2,4 +2,8 @@ libcrypt {
GLIBC_2.0 {
crypt; crypt_r; encrypt; encrypt_r; fcrypt; setkey; setkey_r;
}
+ GLIBC_2.22 {
+ sha256; sha256_init; sha256_update; sha256_finish; sha224_finish;
+ sha512; sha512_init; sha512_update; sha512_finish; sha384_finish;
+ }
}
new file mode 100644
@@ -0,0 +1,65 @@
+/*
+ * SHA2: The SHA2 family of cryptographic functions
+ *
+ * Copyright (C) 2015 Free Software Foundation, Inc.
+ *
+ * The GNU C Library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * The GNU C Library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with the GNU C Library; if not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _SHA2_H
+#define _SHA2_H
+
+#include <unistd.h>
+
+typedef struct {
+ char __internal_state[176];
+} sha256_ctx __attribute__((__aligned__(16)));
+
+/* Convenience function. Returns the 3rd argument. */
+void *sha256(const void *__restrict, size_t, void *__restrict);
+
+void sha256_init(sha256_ctx *);
+
+/* Returns the second argument. */
+const void *sha256_update(sha256_ctx *__restrict, const void *__restrict, size_t);
+
+/* Returns the second argument. */
+void *sha256_finish(sha256_ctx *__restrict, void *__restrict);
+
+/* Returns the second argument. Note sha224 is just a truncated sha256. */
+void *sha224_finish(sha256_ctx *__restrict, void *__restrict);
+
+
+typedef struct {
+ char __internal_state[352];
+} sha512_ctx __attribute__((__aligned__(16)));
+
+/* Convenience function. Returns the 3rd argument. */
+void *sha512(const void *__restrict, size_t, void *__restrict);
+
+void sha512_init(sha512_ctx *);
+
+/* Returns the second argument. */
+const void *sha512_update(sha512_ctx *__restrict, const void *__restrict, size_t);
+
+/* Returns the second argument. */
+void *sha512_finish(sha512_ctx *__restrict, void *__restrict);
+
+/* Returns the second argument. Note sha384 is just a truncated sha512.
+ * sha224/512 and sha256/512 can also be generated by truncating sha512,
+ * but no convenience function is provided. */
+void *sha384_finish(sha512_ctx *__restrict, void *__restrict);
+
+#endif
@@ -3,7 +3,7 @@
/* Process LEN bytes of BUFFER, accumulating context into CTX.
It is assumed that LEN % 64 == 0. */
void
-sha256_process_block (const void *buffer, size_t len, struct sha256_ctx *ctx)
+sha256_process_block (const void *buffer, size_t len, sha256_ctx *ctx)
{
const uint32_t *words = buffer;
size_t nwords = len / sizeof (uint32_t);
@@ -50,7 +50,7 @@ sha256_process_block (const void *buffer, size_t len, struct sha256_ctx *ctx)
/* Compute the message schedule according to FIPS 180-2:6.2.2 step 2. */
for (unsigned int t = 0; t < 16; ++t)
{
- W[t] = SWAP (*words);
+ W[t] = be32toh (*words);
++words;
}
for (unsigned int t = 16; t < 64; ++t)
@@ -68,7 +68,7 @@ typedef int PRBool;
__sha256_init_ctx (ctxp)
# define sha256_process_bytes(buf, len, ctxp, nss_ctxp) \
- __sha256_process_bytes(buf, len, ctxp)
+ __sha256_process_bytes(ctxp, buf, len)
# define sha256_finish_ctx(ctxp, nss_ctxp, result) \
__sha256_finish_ctx (ctxp, result)
@@ -189,8 +189,8 @@ __sha256_crypt_r (key, salt, buffer, buflen)
NSSLOWHASHContext *nss_ctx = NULL;
NSSLOWHASHContext *nss_alt_ctx = NULL;
#else
- struct sha256_ctx ctx;
- struct sha256_ctx alt_ctx;
+ sha256_ctx ctx;
+ sha256_ctx alt_ctx;
#endif
/* Prepare for the real work. */
@@ -31,30 +31,6 @@
#include "sha256.h"
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-# ifdef _LIBC
-# include <byteswap.h>
-# define SWAP(n) bswap_32 (n)
-# define SWAP64(n) bswap_64 (n)
-# else
-# define SWAP(n) \
- (((n) << 24) | (((n) & 0xff00) << 8) | (((n) >> 8) & 0xff00) | ((n) >> 24))
-# define SWAP64(n) \
- (((n) << 56) \
- | (((n) & 0xff00) << 40) \
- | (((n) & 0xff0000) << 24) \
- | (((n) & 0xff000000) << 8) \
- | (((n) >> 8) & 0xff000000) \
- | (((n) >> 24) & 0xff0000) \
- | (((n) >> 40) & 0xff00) \
- | ((n) >> 56))
-# endif
-#else
-# define SWAP(n) (n)
-# define SWAP64(n) (n)
-#endif
-
-
/* This array contains the bytes used to pad the buffer to the next
64-byte boundary. (FIPS 180-2:5.1.1) */
static const unsigned char fillbuf[64] = { 0x80, 0 /* , 0, 0, ... */ };
@@ -82,13 +58,13 @@ static const uint32_t K[64] =
};
void
-sha256_process_block (const void *, size_t, struct sha256_ctx *);
+sha256_process_block (const void *, size_t, sha256_ctx *);
/* Initialize structure containing state of computation.
(FIPS 180-2:5.3.2) */
void
__sha256_init_ctx (ctx)
- struct sha256_ctx *ctx;
+ sha256_ctx *ctx;
{
ctx->H[0] = 0x6a09e667;
ctx->H[1] = 0xbb67ae85;
@@ -102,17 +78,10 @@ __sha256_init_ctx (ctx)
ctx->total64 = 0;
ctx->buflen = 0;
}
+weak_alias(__sha256_init_ctx, sha256_init)
-
-/* Process the remaining bytes in the internal buffer and the usual
- prolog according to the standard and write the result to RESBUF.
-
- IMPORTANT: On some systems it is required that RESBUF is correctly
- aligned for a 32 bits value. */
-void *
-__sha256_finish_ctx (ctx, resbuf)
- struct sha256_ctx *ctx;
- void *resbuf;
+static void
+__sha256_finish_ctx_generic (sha256_ctx *ctx)
{
/* Take yet unprocessed bytes into account. */
uint32_t bytes = ctx->buflen;
@@ -125,30 +94,53 @@ __sha256_finish_ctx (ctx, resbuf)
memcpy (&ctx->buffer[bytes], fillbuf, pad);
/* Put the 64-bit file length in *bits* at the end of the buffer. */
-#if _STRING_ARCH_unaligned
- ctx->buffer64[(bytes + pad) / 8] = SWAP64 (ctx->total64 << 3);
-#else
- ctx->buffer32[(bytes + pad + 4) / 4] = SWAP (ctx->total[TOTAL64_low] << 3);
- ctx->buffer32[(bytes + pad) / 4] = SWAP ((ctx->total[TOTAL64_high] << 3) |
- (ctx->total[TOTAL64_low] >> 29));
-#endif
+ ctx->buffer64[(bytes + pad) / 8] = be64toh (ctx->total64 << 3);
/* Process last bytes. */
sha256_process_block (ctx->buffer, bytes + pad + 8, ctx);
+}
+
+/* Process the remaining bytes in the internal buffer and the usual
+ prolog according to the standard and write the result to RESBUF. */
+void *
+__sha256_finish_ctx (sha256_ctx *ctx, void *resbuf)
+{
+ __sha256_finish_ctx_generic (ctx);
- /* Put result from CTX in first 32 bytes following RESBUF. */
+ /* Put result from CTX in first 32 bytes following RESBUF.
+ This is the finish so we can trash ctx. */
for (unsigned int i = 0; i < 8; ++i)
- ((uint32_t *) resbuf)[i] = SWAP (ctx->H[i]);
+ ctx->H[i] = be32toh (ctx->H[i]);
+
+ memcpy(resbuf, ctx->H, 32);
return resbuf;
}
+weak_alias(__sha256_finish_ctx, sha256_finish)
+
+/* Process the remaining bytes in the internal buffer and the usual
+ prolog according to the standard and write the result to RESBUF. */
+void *
+__sha224_finish_ctx (sha256_ctx *ctx, void *resbuf)
+{
+ __sha256_finish_ctx_generic (ctx);
+ /* Put result from CTX in first 28 bytes following RESBUF.
+ This is the finish so we can trash ctx. */
+ for (unsigned int i = 0; i < 7; ++i)
+ ctx->H[i] = be32toh (ctx->H[i]);
-void
-__sha256_process_bytes (buffer, len, ctx)
+ memcpy(resbuf, ctx->H, 28);
+
+ return resbuf;
+}
+weak_alias(__sha224_finish_ctx, sha224_finish)
+
+const void *
+__sha256_process_bytes (ctx, buffer, len)
+ sha256_ctx *ctx;
const void *buffer;
size_t len;
- struct sha256_ctx *ctx;
{
/* When we already have some bits in our internal buffer concatenate
both inputs first. */
@@ -216,6 +208,20 @@ __sha256_process_bytes (buffer, len, ctx)
}
ctx->buflen = left_over;
}
+
+ return buffer;
}
+weak_alias(__sha256_process_bytes, sha256_update)
+void *
+__sha256(const void *__restrict d, size_t n, void *__restrict md)
+{
+ sha256_ctx ctx;
+
+ sha256_init(&ctx);
+ sha256_update(&ctx, d, n);
+ sha256_finish(&ctx, md);
+ return md;
+}
+weak_alias(__sha256, sha256)
#include <sha256-block.c>
@@ -27,7 +27,7 @@
/* Structure to save state of computation between the single steps. */
-struct sha256_ctx
+typedef struct
{
uint32_t H[8];
@@ -38,32 +38,39 @@ struct sha256_ctx
#define TOTAL64_high (BYTE_ORDER == LITTLE_ENDIAN)
uint32_t total[2];
};
- uint32_t buflen;
union
{
char buffer[128];
uint32_t buffer32[32];
uint64_t buffer64[16];
};
-};
+ uint32_t buflen;
+ uint8_t __padding[4];
+} sha256_ctx __attribute__((aligned(16)));
/* Initialize structure containing state of computation.
(FIPS 180-2: 5.3.2) */
-extern void __sha256_init_ctx (struct sha256_ctx *ctx) __THROW;
+extern void __sha256_init_ctx (sha256_ctx *__restrict ctx) __THROW;
/* Starting with the result of former calls of this function (or the
initialization function update the context for the next LEN bytes
starting at BUFFER.
It is NOT required that LEN is a multiple of 64. */
-extern void __sha256_process_bytes (const void *buffer, size_t len,
- struct sha256_ctx *ctx) __THROW;
+extern const void *__sha256_process_bytes (sha256_ctx *__restrict ctx,
+ const void *__restrict buffer, size_t len) __THROW;
+
+/* Process the remaining bytes in the buffer and put result from CTX
+ in first 32 bytes following RESBUF. */
+extern void *__sha256_finish_ctx (sha256_ctx *__restrict ctx, void *__restrict resbuf)
+ __THROW;
/* Process the remaining bytes in the buffer and put result from CTX
- in first 32 bytes following RESBUF.
+ in first 28 bytes following RESBUF.
IMPORTANT: On some systems it is required that RESBUF is correctly
aligned for a 32 bits value. */
-extern void *__sha256_finish_ctx (struct sha256_ctx *ctx, void *resbuf)
+extern void *__sha224_finish_ctx (sha256_ctx *__restrict ctx, void *__restrict resbuf)
__THROW;
+extern void *__sha256(const void *__restrict d, size_t n, void *__restrict md) __THROW;
#endif /* sha256.h */
@@ -44,7 +44,7 @@ static const struct
int
main (void)
{
- struct sha256_ctx ctx;
+ sha256_ctx ctx;
char sum[32];
int result = 0;
int cnt;
@@ -52,8 +52,7 @@ main (void)
for (cnt = 0; cnt < (int) (sizeof (tests) / sizeof (tests[0])); ++cnt)
{
__sha256_init_ctx (&ctx);
- __sha256_process_bytes (tests[cnt].input, strlen (tests[cnt].input),
- &ctx);
+ __sha256_process_bytes (&ctx, tests[cnt].input, strlen (tests[cnt].input));
__sha256_finish_ctx (&ctx, sum);
if (memcmp (tests[cnt].result, sum, 32) != 0)
{
@@ -63,7 +62,7 @@ main (void)
__sha256_init_ctx (&ctx);
for (int i = 0; tests[cnt].input[i] != '\0'; ++i)
- __sha256_process_bytes (&tests[cnt].input[i], 1, &ctx);
+ __sha256_process_bytes (&ctx, &tests[cnt].input[i], 1);
__sha256_finish_ctx (&ctx, sum);
if (memcmp (tests[cnt].result, sum, 32) != 0)
{
@@ -77,7 +76,7 @@ main (void)
memset (buf, 'a', sizeof (buf));
__sha256_init_ctx (&ctx);
for (int i = 0; i < 1000; ++i)
- __sha256_process_bytes (buf, sizeof (buf), &ctx);
+ __sha256_process_bytes (&ctx, buf, sizeof (buf));
__sha256_finish_ctx (&ctx, sum);
static const char expected[32] =
"\xcd\xc7\x6e\x5c\x99\x14\xfb\x92\x81\xa1\xc7\xe2\x84\xd7\x3e\x67"
@@ -90,7 +89,7 @@ main (void)
__sha256_init_ctx (&ctx);
for (int i = 0; i < 100000; ++i)
- __sha256_process_bytes (buf, 10, &ctx);
+ __sha256_process_bytes (&ctx, buf, 10);
__sha256_finish_ctx (&ctx, sum);
if (memcmp (expected, sum, 32) != 0)
{
@@ -3,7 +3,7 @@
/* Process LEN bytes of BUFFER, accumulating context into CTX.
It is assumed that LEN % 128 == 0. */
void
-sha512_process_block (const void *buffer, size_t len, struct sha512_ctx *ctx)
+sha512_process_block (const void *buffer, size_t len, sha512_ctx *ctx)
{
const uint64_t *words = buffer;
size_t nwords = len / sizeof (uint64_t);
@@ -57,7 +57,7 @@ sha512_process_block (const void *buffer, size_t len, struct sha512_ctx *ctx)
/* Compute the message schedule according to FIPS 180-2:6.3.2 step 2. */
for (unsigned int t = 0; t < 16; ++t)
{
- W[t] = SWAP (*words);
+ W[t] = be64toh (*words);
++words;
}
for (unsigned int t = 16; t < 80; ++t)
@@ -68,7 +68,7 @@ typedef int PRBool;
__sha512_init_ctx (ctxp)
# define sha512_process_bytes(buf, len, ctxp, nss_ctxp) \
- __sha512_process_bytes(buf, len, ctxp)
+ __sha512_process_bytes(ctxp, buf, len)
# define sha512_finish_ctx(ctxp, nss_ctxp, result) \
__sha512_finish_ctx (ctxp, result)
@@ -188,8 +188,8 @@ __sha512_crypt_r (key, salt, buffer, buflen)
NSSLOWHASHContext *nss_ctx = NULL;
NSSLOWHASHContext *nss_alt_ctx = NULL;
#else
- struct sha512_ctx ctx;
- struct sha512_ctx alt_ctx;
+ sha512_ctx ctx;
+ sha512_ctx alt_ctx;
#endif
/* Prepare for the real work. */
@@ -31,26 +31,6 @@
#include "sha512.h"
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-# ifdef _LIBC
-# include <byteswap.h>
-# define SWAP(n) bswap_64 (n)
-# else
-# define SWAP(n) \
- (((n) << 56) \
- | (((n) & 0xff00) << 40) \
- | (((n) & 0xff0000) << 24) \
- | (((n) & 0xff000000) << 8) \
- | (((n) >> 8) & 0xff000000) \
- | (((n) >> 24) & 0xff0000) \
- | (((n) >> 40) & 0xff00) \
- | ((n) >> 56))
-# endif
-#else
-# define SWAP(n) (n)
-#endif
-
-
/* This array contains the bytes used to pad the buffer to the next
64-byte boundary. (FIPS 180-2:5.1.2) */
static const unsigned char fillbuf[128] = { 0x80, 0 /* , 0, 0, ... */ };
@@ -102,13 +82,13 @@ static const uint64_t K[80] =
};
void
-sha512_process_block (const void *buffer, size_t len, struct sha512_ctx *ctx);
+sha512_process_block (const void *buffer, size_t len, sha512_ctx *ctx);
/* Initialize structure containing state of computation.
(FIPS 180-2:5.3.3) */
void
__sha512_init_ctx (ctx)
- struct sha512_ctx *ctx;
+ sha512_ctx *ctx;
{
ctx->H[0] = UINT64_C (0x6a09e667f3bcc908);
ctx->H[1] = UINT64_C (0xbb67ae8584caa73b);
@@ -122,17 +102,10 @@ __sha512_init_ctx (ctx)
ctx->total[0] = ctx->total[1] = 0;
ctx->buflen = 0;
}
+weak_alias(__sha512_init_ctx, sha512_init)
-
-/* Process the remaining bytes in the internal buffer and the usual
- prolog according to the standard and write the result to RESBUF.
-
- IMPORTANT: On some systems it is required that RESBUF is correctly
- aligned for a 32 bits value. */
-void *
-__sha512_finish_ctx (ctx, resbuf)
- struct sha512_ctx *ctx;
- void *resbuf;
+static void
+__sha512_finish_ctx_generic (sha512_ctx *ctx)
{
/* Take yet unprocessed bytes into account. */
uint64_t bytes = ctx->buflen;
@@ -151,26 +124,55 @@ __sha512_finish_ctx (ctx, resbuf)
memcpy (&ctx->buffer[bytes], fillbuf, pad);
/* Put the 128-bit file length in *bits* at the end of the buffer. */
- ctx->buffer64[(bytes + pad + 8) / 8] = SWAP (ctx->total[TOTAL128_low] << 3);
- ctx->buffer64[(bytes + pad) / 8] = SWAP ((ctx->total[TOTAL128_high] << 3) |
+ ctx->buffer64[(bytes + pad + 8) / 8] = be64toh (ctx->total[TOTAL128_low] << 3);
+ ctx->buffer64[(bytes + pad) / 8] = be64toh ((ctx->total[TOTAL128_high] << 3) |
(ctx->total[TOTAL128_low] >> 61));
/* Process last bytes. */
sha512_process_block (ctx->buffer, bytes + pad + 16, ctx);
+}
+
+/* Process the remaining bytes in the internal buffer and the usual
+ prolog according to the standard and write the result to RESBUF. */
+void *
+__sha512_finish_ctx (sha512_ctx *ctx, void *resbuf)
+{
+ __sha512_finish_ctx_generic (ctx);
- /* Put result from CTX in first 64 bytes following RESBUF. */
+ /* Put result from CTX in first 64 bytes following RESBUF.
+ This is the finish so we can trash ctx. */
for (unsigned int i = 0; i < 8; ++i)
- ((uint64_t *) resbuf)[i] = SWAP (ctx->H[i]);
+ ctx->H[i] = be64toh (ctx->H[i]);
+
+ memcpy(resbuf, ctx->H, 64);
return resbuf;
}
+weak_alias(__sha512_finish_ctx, sha512_finish)
+/* Process the remaining bytes in the internal buffer and the usual
+ prolog according to the standard and write the result to RESBUF. */
+void *
+__sha384_finish_ctx (sha512_ctx *ctx, void *resbuf)
+{
+ __sha512_finish_ctx_generic (ctx);
-void
-__sha512_process_bytes (buffer, len, ctx)
+ /* Put result from CTX in first 48 bytes following RESBUF.
+ This is the finish so we can trash ctx. */
+ for (unsigned int i = 0; i < 6; ++i)
+ ctx->H[i] = be64toh (ctx->H[i]);
+
+ memcpy(resbuf, ctx->H, 48);
+
+ return resbuf;
+}
+weak_alias(__sha384_finish_ctx, sha384_finish)
+
+const void *
+__sha512_process_bytes (ctx, buffer, len)
+ sha512_ctx *ctx;
const void *buffer;
size_t len;
- struct sha512_ctx *ctx;
{
/* When we already have some bits in our internal buffer concatenate
both inputs first. */
@@ -239,6 +241,21 @@ __sha512_process_bytes (buffer, len, ctx)
}
ctx->buflen = left_over;
}
+
+ return buffer;
+}
+weak_alias(__sha512_process_bytes, sha512_update)
+
+void *
+__sha512 (const void *__restrict d, size_t n, void *__restrict md)
+{
+ sha512_ctx ctx;
+
+ sha512_init(&ctx);
+ sha512_update(&ctx, d, n);
+ sha512_finish(&ctx, md);
+ return md;
}
+weak_alias(__sha512, sha512)
#include <sha512-block.c>
@@ -28,7 +28,7 @@
/* Structure to save state of computation between the single steps. */
-struct sha512_ctx
+typedef struct
{
uint64_t H[8];
@@ -43,30 +43,40 @@ struct sha512_ctx
uint64_t total[2];
};
uint64_t buflen;
+ uint8_t __padding[8];
union
{
char buffer[256];
uint64_t buffer64[32];
};
-};
+} sha512_ctx __attribute__((aligned(16)));
/* Initialize structure containing state of computation.
(FIPS 180-2: 5.3.3) */
-extern void __sha512_init_ctx (struct sha512_ctx *ctx) __THROW;
+extern void __sha512_init_ctx (sha512_ctx *__restrict ctx) __THROW;
/* Starting with the result of former calls of this function (or the
initialization function update the context for the next LEN bytes
starting at BUFFER.
It is NOT required that LEN is a multiple of 128. */
-extern void __sha512_process_bytes (const void *buffer, size_t len,
- struct sha512_ctx *ctx) __THROW;
+extern const void *__sha512_process_bytes (sha512_ctx *__restrict ctx,
+ const void *__restrict buffer, size_t len) __THROW;
/* Process the remaining bytes in the buffer and put result from CTX
in first 64 bytes following RESBUF.
IMPORTANT: On some systems it is required that RESBUF is correctly
aligned for a 64 bits value. */
-extern void *__sha512_finish_ctx (struct sha512_ctx *ctx, void *resbuf)
+extern void *__sha512_finish_ctx (sha512_ctx *ctx, void *__restrict resbuf)
__THROW;
+/* Process the remaining bytes in the buffer and put result from CTX
+ in first 48 bytes following RESBUF.
+
+ IMPORTANT: On some systems it is required that RESBUF is correctly
+ aligned for a 64 bits value. */
+extern void *__sha384_finish_ctx (sha512_ctx *ctx, void *__restrict resbuf)
+ __THROW;
+
+extern void *__sha512(const void *__restrict d, size_t n, void *__restrict md) __THROW;
#endif /* sha512.h */
@@ -63,7 +63,7 @@ static const struct
int
main (void)
{
- struct sha512_ctx ctx;
+ sha512_ctx ctx;
char sum[64];
int result = 0;
int cnt;
@@ -71,8 +71,7 @@ main (void)
for (cnt = 0; cnt < (int) (sizeof (tests) / sizeof (tests[0])); ++cnt)
{
__sha512_init_ctx (&ctx);
- __sha512_process_bytes (tests[cnt].input, strlen (tests[cnt].input),
- &ctx);
+ __sha512_process_bytes (&ctx, tests[cnt].input, strlen (tests[cnt].input));
__sha512_finish_ctx (&ctx, sum);
if (memcmp (tests[cnt].result, sum, 64) != 0)
{
@@ -82,7 +81,7 @@ main (void)
__sha512_init_ctx (&ctx);
for (int i = 0; tests[cnt].input[i] != '\0'; ++i)
- __sha512_process_bytes (&tests[cnt].input[i], 1, &ctx);
+ __sha512_process_bytes (&ctx, &tests[cnt].input[i], 1);
__sha512_finish_ctx (&ctx, sum);
if (memcmp (tests[cnt].result, sum, 64) != 0)
{
@@ -96,7 +95,7 @@ main (void)
memset (buf, 'a', sizeof (buf));
__sha512_init_ctx (&ctx);
for (int i = 0; i < 1000; ++i)
- __sha512_process_bytes (buf, sizeof (buf), &ctx);
+ __sha512_process_bytes (&ctx, buf, sizeof (buf));
__sha512_finish_ctx (&ctx, sum);
static const char expected[64] =
"\xe7\x18\x48\x3d\x0c\xe7\x69\x64\x4e\x2e\x42\xc7\xbc\x15\xb4\x63"
@@ -428,3 +428,29 @@ each byte.
The @code{ecb_crypt}, @code{cbc_crypt}, and @code{des_setparity}
functions and their accompanying macros are all defined in the header
@file{rpc/des_crypt.h}.
+
+@node SHA-2 Hash Functions
+@section SHA-2 Hash Functions
+
+@cindex FIPS 180-4
+The Secure Hash Algorythm 2 is described in the US Government Federal
+Information Processing Standards (FIPS) 180-4 published by the National
+Institute of Standards and Technology. Secure Hash Algorythm 1 (SHA-1) is not
+supported, nor is SHA-3.
+
+SHA-2 has two flavors, sha256 and sha512. sha224 and sha384 are also truncated
+versions of those two.
+
+@comment sha2.h
+@deftypefun void *sha256 (const void *@var{data}, size_t @var{size}, void *@var{digest})
+
+The @code{sha256} hashes the first @var{size} bytes of @var{date} and returns
+the sha256 digest in the first 32 bytes of @var{digest}.
+@end deftypefun
+
+@comment sha2.h
+@deftypefun void *sha512 (const void *@var{data}, size_t @var{size}, void *@var{digest})
+
+The @code{sha256} hashes the first @var{size} bytes of @var{date} and returns
+the sha512 digest in the first 64 bytes of @var{digest}.
+@end deftypefun
@@ -7,3 +7,15 @@ GLIBC_2.17
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.0
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.4
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.0
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.0
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.0
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.4
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.0
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.18
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -9,3 +9,16 @@ GLIBC_2.0
setkey_r F
_gp_disp
_gp_disp A
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
+
@@ -7,3 +7,15 @@ GLIBC_2.0
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.21
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.0
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.3
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.0
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.2
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.0
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.0
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.0
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.12
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.12
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.12
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.2.5
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F
@@ -7,3 +7,15 @@ GLIBC_2.16
fcrypt F
setkey F
setkey_r F
+GLIBC_2.22
+ GLIBC_2.22 A
+ sha224_finish F
+ sha256 F
+ sha256_finish F
+ sha256_init F
+ sha256_update F
+ sha384_finish F
+ sha512 F
+ sha512_finish F
+ sha512_init F
+ sha512_update F