1 files changed, 90 insertions, 0 deletions
diff --git a/sha1/sha1_hash.c b/sha1/sha1_hash.c
new file mode 100644
index 0000000..18b330c
--- /dev/null
+++ b/sha1/sha1_hash.c
@@ -0,0 +1,90 @@
+/*
+** Copyright 2001-2008 Double Precision, Inc.
+** See COPYING for distribution information.
+*/
+#define SHA1_INTERNAL
+#include	"sha1.h"
+#include	<string.h>
+
+
+static const char base64tab[]=
+"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+const char *sha1_hash(const char *passw)
+{
+SHA1_DIGEST sha1buf;
+static char hash_buffer[1+(sizeof(sha1buf)+2)/3*4];
+int	a=0,b=0,c=0;
+int	i, j;
+int	d, e, f, g;
+
+	sha1_digest(passw, strlen(passw), sha1buf);
+
+	j=0;
+
+	for (i=0; i<sizeof(sha1buf); i += 3)
+	{
+		a=sha1buf[i];
+		b= i+1 < sizeof(sha1buf) ? sha1buf[i+1]:0;
+		c= i+2 < sizeof(sha1buf) ? sha1buf[i+2]:0;
+
+		d=base64tab[ a >> 2 ];
+		e=base64tab[ ((a & 3 ) << 4) | (b >> 4)];
+		f=base64tab[ ((b & 15) << 2) | (c >> 6)];
+		g=base64tab[ c & 63 ];
+		if (i + 1 >= sizeof(sha1buf))	f='=';
+		if (i + 2 >= sizeof(sha1buf)) g='=';
+		hash_buffer[j++]=d;
+		hash_buffer[j++]=e;
+		hash_buffer[j++]=f;
+		hash_buffer[j++]=g;
+	}
+
+	hash_buffer[j]=0;
+	return (hash_buffer);
+}
+
+const char *ssha_hash(const char *passw, SSHA_RAND seed)
+{
+	unsigned char sha1buf[sizeof(SHA1_DIGEST)+sizeof(SSHA_RAND)];
+
+	static char hash_buffer[1+(sizeof(sha1buf)+2)/3*4];
+	int	a=0,b=0,c=0;
+	int	i, j;
+	int	d, e, f, g;
+	struct SHA1_CONTEXT ctx;
+
+	sha1_context_init( &ctx );
+	sha1_context_hashstream(&ctx, passw, strlen(passw));
+	sha1_context_hashstream(&ctx, seed, sizeof(SSHA_RAND));
+	sha1_context_endstream(&ctx, strlen(passw)+sizeof(SSHA_RAND));
+	sha1_context_digest( &ctx, sha1buf );
+
+	for(i=0; i<sizeof(SSHA_RAND); i++)
+	{
+		sha1buf[sizeof(SHA1_DIGEST)+i] = seed[i];
+	}
+
+	j=0;
+
+	for (i=0; i<sizeof(sha1buf); i += 3)
+	{
+		a=sha1buf[i];
+		b= i+1 < sizeof(sha1buf) ? sha1buf[i+1]:0;
+		c= i+2 < sizeof(sha1buf) ? sha1buf[i+2]:0;
+
+		d=base64tab[ a >> 2 ];
+		e=base64tab[ ((a & 3 ) << 4) | (b >> 4)];
+		f=base64tab[ ((b & 15) << 2) | (c >> 6)];
+		g=base64tab[ c & 63 ];
+		if (i + 1 >= sizeof(sha1buf))	f='=';
+		if (i + 2 >= sizeof(sha1buf)) g='=';
+		hash_buffer[j++]=d;
+		hash_buffer[j++]=e;
+		hash_buffer[j++]=f;
+		hash_buffer[j++]=g;
+	}
+
+	hash_buffer[j]=0;
+	return (hash_buffer);
+}