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-rw-r--r--src/lib/defs/digest_sizes.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/lib/defs/digest_sizes.h b/src/lib/defs/digest_sizes.h
index f426fff20d..dd772cae07 100644
--- a/src/lib/defs/digest_sizes.h
+++ b/src/lib/defs/digest_sizes.h
@@ -7,6 +7,15 @@
#ifndef TOR_DIGEST_SIZES_H
#define TOR_DIGEST_SIZES_H
+/**
+ * \file digest_sizes.h
+ *
+ * \brief Definitions for common sizes of cryptographic digests.
+ *
+ * Tor uses digests throughout its codebase, even in parts that don't actually
+ * calculate the digests.
+ **/
+
/** Length of the output of our message digest. */
#define DIGEST_LEN 20
/** Length of the output of our second (improved) message digests. (For now