RSA

wikipedia:RSA (cryptosystem) (1977)

• Ron Rivest
• Adi Shamir: shamir's Secret Sharing
• Leonard Adleman

Key length macOS 10.15 requires that TLS server certificates and issuing CAs using RSA keys must use key sizes greater than or equal to 2048.

• OpenSSH 7.6
  • Refuse RSA keys <1024 bits in length and improve reporting for keys that do not meet this requirement.
• OpenSSH 4.2: September 1, 2005 https://www.openssh.com/txt/release-4.2
  • Increase the default size of new RSA/DSA keys generated by ssh-keygen from 1024 to 2048 bits.

Related terms

• openssl
  • openssl rsautl
  • openssl genrsa
  • openssl rsa
• ssh-keygen -t rsa
• RSA Conference
• RSA Award for Excellence in Mathematics
• easy-rsa
• ssh's challenge-response system based on RSA
• ECC

Activities

• Cisco: Configure public RSA key authentication
• Cisco: crypto key generate rsa

See also

• CSR, Create a certificate: openssl req
• Public-key cryptography: RSA, DSA, ECDSA, EdDSA (Ed25519), AES, RSA Conference, hash, pkeyutl, Signature, key length, Easyrsa, OAEP, Ron Rivest, Adi Shamir, Leonard Adleman, ssh-rsa
• TLS, TLS 1.3, mTLS: OpenSSL, LibreSSL, BoringSSL, WolfSSL, X.509, .pem, SNI, CT, OCSP, Mbed TLS, ALPN, your connection is not private, SSL Certificate Checker, Wildcard certificate, JA3 fingerprint, sslcan, TLS inspection, Opportunistic TLS (StartTLS), tools
• Cypher: Hash, MD5, SHA, Bcrypt, Blowfish, HMAC, Equihash, Argon2 (Password Hashing Function (PHF))

https://support.apple.com/en-us/HT210176