Add SHA384 (and SHA512) implementation for use when compiling without OpenSSL

1 files changed, 32 insertions, 0 deletions

diff --git a/src/sha512.h b/src/sha512.h
new file mode 100644
index 0000000..72db47b
--- /dev/null
+++ b/src/sha512.h
@@ -0,0 +1,32 @@
+#ifndef SHA512_H
+#define SHA512_H
+
+#include <stddef.h>
+
+#include "fixedint.h"
+
+/* state */
+typedef struct sha512_context_ {
+    uint64_t  length, state[8];
+    size_t curlen;
+    unsigned char buf[128];
+    int num_qwords;
+} sha512_context;
+
+#define SHA512_DIGEST_LENGTH 64
+
+int sha512_init(sha512_context * md);
+int sha512_final(sha512_context * md, unsigned char *out);
+int sha512_update(sha512_context * md, const unsigned char *in, size_t inlen);
+int sha512(const unsigned char *message, size_t message_len, unsigned char *out);
+
+typedef sha512_context sha384_context;
+
+#define SHA384_DIGEST_LENGTH 48
+
+int sha384_init(sha384_context * md);
+int sha384_final(sha384_context * md, unsigned char *out);
+int sha384_update(sha384_context * md, const unsigned char *in, size_t inlen);
+int sha384(const unsigned char *message, size_t message_len, unsigned char *out);
+
+#endif