Transport Layer Security (TLS)

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wikipedia:Transport Layer Security

• https://support.apple.com/en-us/HT211025, 398 days

macOS 10.15 (June 2019) and IOS 13 requirements (https://support.apple.com/en-us/HT210176)

• TLS server certificates and issuing CAs using RSA keys must use key sizes greater than or equal to 2048 bits
• SHA-2

• 2014 LibreSSL
• OpenVPN (2001)

SSL and TLS protocols

Protocol	Published	Status
SSL 1.0	Unpublished	Unpublished
SSL 2.0	1995	Deprecated in 2011 (RFC 6176)
SSL 3.0	1996	Deprecated in 2015 (RFC 7568)
TLS 1.0	1999	Deprecation planned in 2020
TLS 1.1	2006	Deprecation planned in 2020
TLS 1.2	2008
TLS 1.3	2018

Related terms

• SMTPS ((TCP port number 465 using TLS)) (deprecated)
• STARTTLS
• podman pull --tls-verify=false
• ssl_protocols Nginx directive

See also

• PEM
• TLS: OpenSSL, LibreSSL, WolfSSL, X.509, .pem, SNI, CT, OCSP, Mbed TLS, mTLS, ALPN, your connection is not private, SSL Certificate Checker, Wildcard certificate, JA3 fingerprint, sslcan, TLS inspection
• HTTP, HTTP client, HTTP/1.1, HTTP/2, HTTP/3, HTTPS, HSTS CSR, TLS, SSL, openSSL, WebSockets, WebRTC, ssl_certificate QUIC, HPKP, CT, List of HTTP status codes, URL redirection, Content-type:, Webhook, HTTP headers, --insecure, Axios HTTP client, HTTP cookies, HTTP ETag
• OpenSSH (changelog): /etc/ssh/sshd_config | /etc/ssh/ssh_config | ~/.ssh/ | openSSL | sshd logs | sftp | scp | authorized_keys | ssh-keygen | ssh-keyscan | ssh-add | ssh-agent | ssh | Ssh -O stop | ssh-copy-id | CheckHostIP | UseKeychain, OpenSSF
• CA, FreeIPA, PKI, OpenCA, Wildcard certificate, certtool, certbot (Let's Encrypt), certinfo (Cloudflare), ACME, Boulder, cfssl (Cloudflare), Public key certificate, public key, TLS and X.509, OCSP, Subject Alternative Name (SAN), openssl ca, Self signed certificate, CSR, keytool, ACM, KMS, aws acm, IdenTrust, multirootca, cert-manager
• https://en.wikipedia.org/wiki/Comparison_of_TLS_implementations

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