1 files changed, 19 insertions, 0 deletions
diff --git a/crypto.h b/crypto.h
index f0b49bb..3a5d5f2 100644
--- a/crypto.h
+++ b/crypto.h
@@ -398,5 +398,24 @@ key_ctx_bi_defined(const struct key_ctx_bi* key)
   return key->encrypt.cipher || key->encrypt.hmac || key->decrypt.cipher || key->decrypt.hmac;
 }
 
+/*
+ * md5 functions
+ */
+
+struct md5_state {
+  MD5_CTX ctx;
+};
+
+struct md5_digest {
+  uint8_t digest [MD5_DIGEST_LENGTH];
+};
+
+void md5_state_init (struct md5_state *s);
+void md5_state_update (struct md5_state *s, void *data, size_t len);
+void md5_state_final (struct md5_state *s, struct md5_digest *out);
+void md5_digest_clear (struct md5_digest *digest);
+bool md5_digest_defined (const struct md5_digest *digest);
+bool md5_digest_equal (const struct md5_digest *d1, const struct md5_digest *d2);
+
 #endif /* USE_CRYPTO */
 #endif /* CRYPTO_H */