1 files changed, 30 insertions, 0 deletions
diff --git a/common/sha1.h b/common/sha1.h
new file mode 100644
index 0000000..37f734f
--- /dev/null
+++ b/common/sha1.h
@@ -0,0 +1,30 @@
+#ifndef __SHA1_H__
+#define __SHA1_H__
+
+#ifndef LITTLE_ENDIAN
+#define LITTLE_ENDIAN
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define SHA1_LEN  20
+
+typedef struct sha1_ctx
+{
+	unsigned long state[5];
+	unsigned long count[2];
+	unsigned char buffer[64];
+}
+sha1_ctx_t;
+
+void sha1_init(sha1_ctx_t* context);
+void sha1_update(sha1_ctx_t* context, const void* data, unsigned int len);
+void sha1_final(unsigned char digest[SHA1_LEN], sha1_ctx_t* context);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __SHA1_H__