add package signing code

[zpackage] / crypto / libeddsa / lib / sha512.h

diff --git a/crypto/libeddsa/lib/sha512.h b/crypto/libeddsa/lib/sha512.h
new file mode 100644 (file)
index 0000000..a4e1dbe
--- /dev/null
+++ b/crypto/libeddsa/lib/sha512.h
@@ -0,0 +1,31 @@
+#ifndef SHA512_H
+#define SHA512_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define SHA512_BLOCK_SIZE      128
+#define SHA512_HASH_LENGTH     64
+
+
+struct sha512 {
+       uint64_t        state[8];
+       uint64_t        count;
+
+       uint8_t         buffer[SHA512_BLOCK_SIZE];
+       size_t          fill;
+};
+
+void sha512_init(struct sha512 *ctx);
+void sha512_add(struct sha512 *ctx, const uint8_t *data, size_t len);
+void sha512_final(struct sha512 *ctx, uint8_t out[SHA512_HASH_LENGTH]);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif