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+.TH LIBKECCAK_BEHEX_LOWER 3 LIBKECCAK
+.SH NAME
+libkeccak_behex_lower - Converts a binary hashsum to lower case hexadecimal
+.SH SYNOPSIS
+.LP
+.nf
+#include <libkeccak.h>
+
+void libkeccak_behex_lower(char *restrict \fIoutput\fP, const void *restrict \fIhashsum\fP, size_t \fIn\fP);
+.fi
+.PP
+Link with
+.IR -lkeccak .
+.SH DESCRIPTION
+The
+.BR libkeccak_behex_lower ()
+function
+converts a binary hashsum, stored in
+.IR hashsum ,
+to lowercase hexadecimal, and stores the
+hexadecimal representation in
+.IR output .
+.PP
+.I output
+will be terminated by a NUL-character.
+.PP
+The
+.I n
+parameter specifies the number of bytes
+the binary hashsum is comprised.
+.I output
+needs an allocation size of (2 *
+.I n
++ 1).
+.SH RETURN VALUES
+The
+.BR libkeccak_behex_lower ()
+function does return any value.
+.SH ERRORS
+The
+.BR libkeccak_behex_lower ()
+function cannot fail.
+.SH SEE ALSO
+.BR libkeccak_behex_upper (3),
+.BR libkeccak_unhex (3)