[openssl-users] ECC ciphers in OpenSSL and Citricom Patent/License terms

Jayalakshmi bhat bhat.jayalakshmi at gmail.com
Wed Dec 6 06:06:59 UTC 2017


I have a question on ECC ciphers implementaion in OpenSSL. I do see
README.ECC file in FIPS certfied OpenSSL crypto library. That says  The
OpenSSL Software Foundation has executed a sublicense agreement
entitled "Elliptic Curve Cryptography Patent License Agreement" with the
National Security Agency/ Central Security Service Commercial Solutions
Center (NCSC) dated 2010-11-04.

However OpenSSL library does not include this file. Does it mean to use ECC
ciphers from OpenSSL does the end user needs to get the license from

Thanks and Regards
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