--- /dev/null
+/*
+This is an addition to the libb64 project, and has been placed in the public domain.
+For details, see http://sourceforge.net/projects/libb64
+*/
+
+/*
+ Modified by Eugene Crosser to fit pam_pcsc_cr project, 2013
+*/
+
+#ifndef BASE64_H
+#define BASE64_H
+
+int b64_encode(const char *src, const int ssize,
+ char *const b64, int *const bsize);
+int b64_decode(const char *b64, char *const dst, int *const dsize);
+
+#endif /* BASE64_H */