On Thu, 2009-07-23 at 09:07 -0400, Bram Cymet wrote: > Is it possible to use openssl to do ecdsa encryption/decryption and if > so how? Or can someone recommend a linux command line tool that would? > ECDSA is Elliptic Curve Digital **Signature** Algorithm, hence you can only sign/verify with this algorithm. ECDH is Elliptic Curve Diffie Hellman and can be used to share a secret key between two parties.
ECIES is Integrated Encryption Scheme which mix EC and AES, but it is not implemented in OpenSSL. More details on these algorithms on wikipedia ;) In conclusion, with ECDSA you can only sign/verify, you may encrypt mixing ECDH to generate keys and AES to do symmetric encryption (even at command line: look at ecparam, ecdh, enc), or you may use ECIES but you need a different library. bye! -- Emanuele Cesena <[email protected]> Il corpo non ha ideali ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List [email protected] Automated List Manager [email protected]
