20 years ago, on the 23rd December 1998, the first version of OpenSSL was released. OpenSSL was not the original name planned for the project but it was changed over just a few hours before the site went live. Let’s take a look at some of the early history of OpenSSL as some of the background has not been documented before. Back in the late 1990’s, Eric Young and Tim Hudson were well known for the
Note: This is an outdated version of this blog post. This information is now maintained in a wiki page. See here for the latest version. The forthcoming OpenSSL 1.1.1 release will include support for TLSv1.3. The new release will be binary and API compatible with OpenSSL 1.1.0. In theory, if your application supports OpenSSL 1.1.0, then all you need to do to upgrade is to drop in the new version o
NAME ciphers - SSL cipher display and cipher list tool. SYNOPSIS openssl ciphers [ -help ] [ -s ] [ -v ] [ -V ] [ -ssl3 ] [ -tls1 ] [ -tls1_1 ] [ -tls1_2 ] [ -s ] [ -psk ] [ -stdname ] [ cipherlist ] DESCRIPTION The ciphers command converts textual OpenSSL cipher lists into ordered SSL cipher preference lists. It can be used as a test tool to determine the appropriate cipherlist. COMMAND OPTIONS -
s_client NAME asn1parse, ca, ciphers, cmp, cms, crl, crl2pkcs7, dgst, dhparam, dsa, dsaparam, ec, ecparam, enc, engine, errstr, gendsa, genpkey, genrsa, info, kdf, mac, nseq, ocsp, passwd, pkcs12, pkcs7, pkcs8, pkey, pkeyparam, pkeyutl, prime, rand, rehash, req, rsa, rsautl, s_client, s_server, s_time, sess_id, smime, speed, spkac, srp, storeutl, ts, verify, version, x509 - OpenSSL application com
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