Trf is an extension to Tcl which provides various data transformations. The collection of provided transformation procedures includes: * generation of message digests (hash values, checksums): MD2, MD5, SHA/SHS, SHA-1, HAVAL, RIPEMD-128, -160, CRC (polynomial used by PGP), Adler (based upon zlib); * conversion to and from various data encodings: uuencoding, base64-encoding, or ASCII85-encoding, and binary, octal, or hexadecimal representation; * an error-correcting Reed-Solomon encoder/decoder; * compression/decompression based on zlib and libbz2.

This package contains the runtime library to be used in Tcl programs.