sect163k1 public keys

2008-10-09 Thread Bruno Vétel
hello It seems that sect163k1 public keys can have two formats The first with a key lentgh of 43 bytes which seems to be the standard, the second used by openssl with length 64 bytes. Can anyone tell me where I can find informations on that and what it the impact on signature. I used a

RE: sect163k1 public keys

2008-10-09 Thread Bruno Vétel
the uncompressed size is 43 bytes and the compressed form 22 Bruno Not sure on the signature part of your question. Bill -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bruno Vétel Sent: October 9, 2008 4:35 PM To: openssl-users

using signature with elliptic curve

2008-08-02 Thread Bruno Vétel
Hello I would like to sign the digest of a file using the elliptic curve sect233r1 I generate my by openssl ecparam -genkey -name sect233r1 -noout -out id_eckey Signing by openssl dgst -sha1 -sign id_eckey file = OK = OK openssl dgst -sha512 -sign id_eckey file = NOK When I try to generate