Add files for swift over UDP.

[swifty.git] / src / libswift_udp / sha1.h

diff --git a/src/libswift_udp/sha1.h b/src/libswift_udp/sha1.h
new file mode 100644 (file)
index 0000000..3b804b0
--- /dev/null
+++ b/src/libswift_udp/sha1.h
@@ -0,0 +1,23 @@
+// licensed under the GPL v2 as part of the git project http://git-scm.com/
+/*
+ * SHA1 routine optimized to do word accesses rather than byte accesses,
+ * and to avoid unnecessary copies into the context array.
+ *
+ * This was initially based on the Mozilla SHA1 implementation, although
+ * none of the original Mozilla code remains.
+ */
+#ifndef GIT_SHA1
+#define GIT_SHA1
+
+typedef struct {
+    unsigned long long size;
+    unsigned int H[5];
+    unsigned int W[16];
+} blk_SHA_CTX;
+
+void blk_SHA1_Init(blk_SHA_CTX *ctx);
+void blk_SHA1_Update(blk_SHA_CTX *ctx, const void *dataIn, unsigned long len);
+void blk_SHA1_Final(unsigned char hashout[20], blk_SHA_CTX *ctx);
+
+#endif
+