librhash 2016-11-01 (d839a1a8)

Code extracted from:

    https://github.com/rhash/rhash.git

at commit d839a1a853f22b8cfd26c2006ee5481739ea1114 (master).

1 files changed, 32 insertions, 0 deletions

diff --git a/librhash/sha256.h b/librhash/sha256.h
new file mode 100644
index 0000000..f87ebaa
--- /dev/null
+++ b/librhash/sha256.h
@@ -0,0 +1,32 @@
+/* sha.h sha256 and sha224 hash functions */
+#ifndef SHA256_H
+#define SHA256_H
+#include "ustd.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define sha256_block_size 64
+#define sha256_hash_size  32
+#define sha224_hash_size  28
+
+/* algorithm context */
+typedef struct sha256_ctx
+{
+	unsigned message[16];   /* 512-bit buffer for leftovers */
+	uint64_t length;        /* number of processed bytes */
+	unsigned hash[8];       /* 256-bit algorithm internal hashing state */
+	unsigned digest_length; /* length of the algorithm digest in bytes */
+} sha256_ctx;
+
+void rhash_sha224_init(sha256_ctx *ctx);
+void rhash_sha256_init(sha256_ctx *ctx);
+void rhash_sha256_update(sha256_ctx *ctx, const unsigned char* data, size_t length);
+void rhash_sha256_final(sha256_ctx *ctx, unsigned char result[32]);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif /* __cplusplus */
+
+#endif /* SHA256_H */