RE: Algorithm licensing

[Ted Mittelstaedt]

md5 is not patented.  des and 3des the patent expired.  Blowfish was originally published not patented.  That's all I know.  With Cisco IPSec work just about all configs use md5, sha, des and 3des and Cisco isn't known for liking to pay royalties to anyone.  If I were you I would stick with md5, des and 3des.   Ted -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Kramer, Mat Sent: Monday, July 11, 2005 1:34 PM To: openssl-users@openssl.org Subject: Algorithm licensing Hello,   We are using OpenSSL in an embedded device.  I have been told that some of the cipher suites include patented algorithms that must be licensed.  The OpenSSL FAQ is intentionally vague about what algorithms are protected, although it recommends a specific configuration to remove RC5, IDEA and MDC2.  Are these the only three that are protected?  Is there anywhere I can find out definitively what algorithms are protected?   Thanks,   -Mat