1 files changed, 22 insertions, 0 deletions
diff --git a/include/sha256.h b/include/sha256.h
new file mode 100644
index 0000000..beadab3
--- /dev/null
+++ b/include/sha256.h
@@ -0,0 +1,22 @@
+#ifndef _SHA256_H
+#define _SHA256_H
+
+#define SHA256_SUM_LEN	32
+
+/* Reset watchdog each time we process this many bytes */
+#define CHUNKSZ_SHA256	(64 * 1024)
+
+typedef struct {
+	uint32_t total[2];
+	uint32_t state[8];
+	uint8_t buffer[64];
+} sha256_context;
+
+void sha256_starts(sha256_context * ctx);
+void sha256_update(sha256_context *ctx, const uint8_t *input, uint32_t length);
+void sha256_finish(sha256_context * ctx, uint8_t digest[SHA256_SUM_LEN]);
+
+void sha256_csum_wd(const unsigned char *input, unsigned int ilen,
+		unsigned char *output, unsigned int chunk_sz);
+
+#endif /* _SHA256_H */