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authorEelco Dolstra <eelco.dolstra@logicblox.com>2015-11-04 16:31:06 +0100
committerLudovic Courtès <ludo@gnu.org>2015-12-02 19:37:59 +0200
commit29d3242e5c428d3b0e8dc9db1c81cd4053e5271c (patch)
tree9265c393bba91ada32e17f33b0725f5aee5cddd8 /nix/libutil
parent79aa1a83054af1600ba235ddf305337b5df78271 (diff)
daemon: Support SHA-512 hashes.
Fixes #679. Note: on x86_64, SHA-512 is considerably faster than SHA-256 (198 MB/s versus 131 MB/s). Co-authored-by: Ludovic Courtès <ludo@gnu.org>
Diffstat (limited to 'nix/libutil')
-rw-r--r--nix/libutil/hash.cc8
-rw-r--r--nix/libutil/hash.hh5
-rw-r--r--nix/libutil/sha512.h35
3 files changed, 46 insertions, 2 deletions
diff --git a/nix/libutil/hash.cc b/nix/libutil/hash.cc
index 2da00a53de..ea69aa64f9 100644
--- a/nix/libutil/hash.cc
+++ b/nix/libutil/hash.cc
@@ -11,6 +11,7 @@ extern "C" {
#include "md5.h"
#include "sha1.h"
#include "sha256.h"
+#include "sha512.h"
}
#endif
@@ -40,6 +41,7 @@ Hash::Hash(HashType type)
if (type == htMD5) hashSize = md5HashSize;
else if (type == htSHA1) hashSize = sha1HashSize;
else if (type == htSHA256) hashSize = sha256HashSize;
+ else if (type == htSHA512) hashSize = sha512HashSize;
else throw Error("unknown hash type");
assert(hashSize <= maxHashSize);
memset(hash, 0, maxHashSize);
@@ -199,6 +201,7 @@ struct Ctx
MD5_CTX md5;
SHA_CTX sha1;
SHA256_CTX sha256;
+ SHA512_CTX sha512;
};
@@ -207,6 +210,7 @@ static void start(HashType ht, Ctx & ctx)
if (ht == htMD5) MD5_Init(&ctx.md5);
else if (ht == htSHA1) SHA1_Init(&ctx.sha1);
else if (ht == htSHA256) SHA256_Init(&ctx.sha256);
+ else if (ht == htSHA512) SHA512_Init(&ctx.sha512);
}
@@ -216,6 +220,7 @@ static void update(HashType ht, Ctx & ctx,
if (ht == htMD5) MD5_Update(&ctx.md5, bytes, len);
else if (ht == htSHA1) SHA1_Update(&ctx.sha1, bytes, len);
else if (ht == htSHA256) SHA256_Update(&ctx.sha256, bytes, len);
+ else if (ht == htSHA512) SHA512_Update(&ctx.sha512, bytes, len);
}
@@ -224,6 +229,7 @@ static void finish(HashType ht, Ctx & ctx, unsigned char * hash)
if (ht == htMD5) MD5_Final(hash, &ctx.md5);
else if (ht == htSHA1) SHA1_Final(hash, &ctx.sha1);
else if (ht == htSHA256) SHA256_Final(hash, &ctx.sha256);
+ else if (ht == htSHA512) SHA512_Final(hash, &ctx.sha512);
}
@@ -321,6 +327,7 @@ HashType parseHashType(const string & s)
if (s == "md5") return htMD5;
else if (s == "sha1") return htSHA1;
else if (s == "sha256") return htSHA256;
+ else if (s == "sha512") return htSHA512;
else return htUnknown;
}
@@ -330,6 +337,7 @@ string printHashType(HashType ht)
if (ht == htMD5) return "md5";
else if (ht == htSHA1) return "sha1";
else if (ht == htSHA256) return "sha256";
+ else if (ht == htSHA512) return "sha512";
else throw Error("cannot print unknown hash type");
}
diff --git a/nix/libutil/hash.hh b/nix/libutil/hash.hh
index 8f099c4f07..6b5e47cd8a 100644
--- a/nix/libutil/hash.hh
+++ b/nix/libutil/hash.hh
@@ -7,19 +7,20 @@
namespace nix {
-typedef enum { htUnknown, htMD5, htSHA1, htSHA256 } HashType;
+typedef enum { htUnknown, htMD5, htSHA1, htSHA256, htSHA512 } HashType;
const int md5HashSize = 16;
const int sha1HashSize = 20;
const int sha256HashSize = 32;
+const int sha512HashSize = 64;
extern const string base32Chars;
struct Hash
{
- static const unsigned int maxHashSize = 32;
+ static const unsigned int maxHashSize = 64;
unsigned int hashSize;
unsigned char hash[maxHashSize];
diff --git a/nix/libutil/sha512.h b/nix/libutil/sha512.h
new file mode 100644
index 0000000000..d2abab4c5f
--- /dev/null
+++ b/nix/libutil/sha512.h
@@ -0,0 +1,35 @@
+/* GNU Guix --- Functional package management for GNU
+ Copyright (C) 2012, 2015 Ludovic Courtès <ludo@gnu.org>
+
+ This file is part of GNU Guix.
+
+ GNU Guix 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 3 of the License, or (at
+ your option) any later version.
+
+ GNU Guix 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.
+
+ You should have received a copy of the GNU General Public License
+ along with GNU Guix. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <gcrypt-hash.hh>
+
+#define SHA512_CTX guix_hash_context
+
+static inline void
+SHA512_Init (struct SHA512_CTX *ctx)
+{
+ guix_hash_init (ctx, GCRY_MD_SHA512);
+}
+
+#define SHA512_Update guix_hash_update
+
+static inline void
+SHA512_Final (void *resbuf, struct SHA512_CTX *ctx)
+{
+ guix_hash_final (resbuf, ctx, GCRY_MD_SHA512);
+}