Move sha256d from sha2.c to sha256.c

okoto-xyz · Nov 4, 2018 · 842c75c · 842c75c
1 parent 3cc09c8
commit 842c75c
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Showing 2 changed files with 18 additions and 1 deletion.
diff --git a/Makefile.am b/Makefile.am
@@ -18,7 +18,7 @@ dist_man_MANS	= minerd.1
 minerd_SOURCES	= elist.h miner.h compat.h \
 		  cpu-miner.c util.c \
 		  yescrypt.c yescrypt.h \
-		  sha2.c sha256.c sha256_shani.c yespower.c yespower.h yespower-opt.c
+		  sha256.c sha256_shani.c yespower.c yespower.h yespower-opt.c
 if USE_ASM
 if ARCH_x86
 minerd_SOURCES += sha2-x86.S scrypt-x86.S 

diff --git a/sha256.c b/sha256.c
@@ -654,3 +654,20 @@ PBKDF2_SHA256(const uint8_t * passwd, size_t passwdlen, const uint8_t * salt,
 	insecure_memzero(tmp32, 288);
 	insecure_memzero(&u, sizeof(u));
 }
+
+void sha256d(unsigned char *digest, const unsigned char *in, int len)
+{
+	SHA256_CTX ctx;
+	uint32_t tmp32[72];
+
+	SHA256_Init(&ctx);
+	_SHA256_Update(&ctx, in, len, tmp32);
+	_SHA256_Final(digest, &ctx, tmp32);
+	SHA256_Init(&ctx);
+	_SHA256_Update(&ctx, digest, 32, tmp32);
+	_SHA256_Final(digest, &ctx, tmp32);
+
+	/* Clean the stack. */
+	insecure_memzero(&ctx, sizeof(SHA256_CTX));
+	insecure_memzero(tmp32, 288);
+}