Key Exchange Methods
• diffie-hellman-group1-sha1
• diffie-hellman-group14-sha1
• diffie-hellman-group-exchange-sha1
• diffie-hellman-group-exchange-sha256
• diffie-hellman-group14-sha256*
• diffie-hellman-group16-sha512*
• diffie-hellman-group18-sha512*
*available as part of OAS only