Update TIdSSLIOHandlerSocketOpenSSL to enable TLS 1.1 and 1.2 by default #13
Labels
Element: SSL/TLS
Issues related to SSL/TLS handling, TIdSSLIOHandlerSocketBase and descendants
Status: In Progress
Issue is being worked on
Type: Maintenance
Issue is proposing maintenance of existing code
Milestone
TIdSSLIOHandlerSocketOpenSSL
currently enables only TLS 1.0 by default, but public servers are slowly moving away from TLS 1.0 and now requiring TLS 1.1 and higher, so theSSLOptions.SSLVersions
property should be updated to enable TLS 1.1 and 1.2 by default.FYI, many servers, like Office 365, are even starting to drop support for TLS 1.1 and now require TLS 1.2 or higher only.
Also, read up about the BEAST attack against TLS 1.0.
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