Announcing the availability of RIPEM/SIG, an exportable signature-only version of RIPEM, a public-key encryption program. RIPEM/SIG is a version of RIPEM 1.2 with encryption and decryption taken out. RSA Data Security has obtained a State Department Commodity Jurisdiction ruling determining that RIPEM/SIG is exportable from the USA. While this ruling certainly does not fully address the concerns of myself and many others regarding the USA's overly restrictive export laws, it does ease things a bit for individuals wishing to exchange authenticated messages across international borders. RIPEM/SIG is built from RIPEM 1.2a sources; thus, RIPEM/SIG source code is not exportable. The executables are exportable. I have compiled RIPEM/SIG for several popular architectures and have placed the executables on ripem.msu.edu, available for anonymous FTP from /pub/crypt/ripem/ripemsig/binaries. Other USA and Canada citizens are welcome to obtain the RIPEM 1.2a source distribution and create and export executables for other platforms. I also wish to announce the availability of RIPEM 1.2a. There were no algorithic changes between 1.2 and 1.2a; simply code changes to create RIPEM/SIG and to accomodate some brain-dead C compilers. RIPEM is available via non-anonymous FTP from ripem.msu.edu; RIPEM/SIG is, as mentioned above, available from the same site via anonymous FTP. /mrr