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LEGACY.pol
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# Provides settings for ensuring maximum compatibility with legacy systems. # This policy is less secure and intended to be a easy way to switch system # to be compatible with older systems. # It should provide at least 64-bit security and include RC4 and 3DES. # MACs: all HMAC with SHA1 or better + all modern MACs (Poly1305 etc) # Curves: all prime >= 255 bits (including Bernstein curves) # Signature algorithms: with SHA-1 hash or better (DSA allowed) # TLS Ciphers: all available > 112-bit key, >= 128-bit block (including RC4 and 3DES) # non-TLS Ciphers: as TLS Ciphers with added Camellia # key exchange: ECDHE, RSA, DHE # DH params size: >= 1023 # RSA params size: >= 1023 # DSA params size: >= 1023 # TLS protocols: TLS >= 1.0 DTLS >= 1.0 mac = AEAD HMAC-SHA2-256 HMAC-SHA1 UMAC-128 HMAC-SHA2-384 HMAC-SHA2-512 mac@Kerberos = HMAC-SHA2-384 HMAC-SHA2-256 AEAD UMAC-128 HMAC-SHA2-512 HMAC-SHA1 group = X25519 X448 SECP256R1 SECP384R1 SECP521R1 \ FFDHE-2048 FFDHE-3072 FFDHE-4096 FFDHE-6144 FFDHE-8192 FFDHE-1536 group@SSH = FFDHE-1024+ hash = SHA2-256 SHA2-384 SHA2-512 SHA3-256 SHA3-384 SHA3-512 SHA2-224 SHA1 sign = ECDSA-SHA3-256 ECDSA-SHA2-256 \ ECDSA-SHA3-384 ECDSA-SHA2-384 \ ECDSA-SHA3-512 ECDSA-SHA2-512 \ EDDSA-ED25519 EDDSA-ED448 \ RSA-PSS-SHA2-256 RSA-PSS-SHA2-384 RSA-PSS-SHA2-512 \ RSA-SHA3-256 RSA-SHA2-256 \ RSA-SHA3-384 RSA-SHA2-384 \ RSA-SHA3-512 RSA-SHA2-512 \ ECDSA-SHA2-224 RSA-PSS-SHA2-224 RSA-SHA2-224 \ DSA-SHA2-256 DSA-SHA2-384 DSA-SHA2-512 DSA-SHA2-224 \ DSA-SHA3-256 DSA-SHA3-384 DSA-SHA3-512 \ ECDSA-SHA1 RSA-PSS-SHA1 RSA-SHA1 DSA-SHA1 cipher = AES-256-GCM AES-256-CCM CHACHA20-POLY1305 CAMELLIA-256-GCM \ AES-256-CTR AES-256-CBC CAMELLIA-256-CBC AES-128-GCM AES-128-CCM \ CAMELLIA-128-GCM AES-128-CTR AES-128-CBC CAMELLIA-128-CBC \ 3DES-CBC RC4-128 cipher@TLS = AES-256-GCM AES-256-CCM CHACHA20-POLY1305 AES-256-CBC \ AES-128-GCM AES-128-CCM AES-128-CBC 3DES-CBC RC4-128 # 'RSA' is intentionally before DHE ciphersuites, as the DHE ciphersuites have # interoperability issues in TLS. key_exchange = ECDHE RSA DHE DHE-RSA DHE-DSS PSK DHE-PSK ECDHE-PSK ECDHE-GSS DHE-GSS protocol@TLS = TLS1.3 TLS1.2 TLS1.1 TLS1.0 DTLS1.2 DTLS1.0 protocol@IKE = IKEv2 # Parameter sizes min_dh_size = 1023 min_dsa_size = 1023 min_rsa_size = 1023 # GnuTLS only for now sha1_in_certs = 1 arbitrary_dh_groups = 1 ssh_certs = 1 ssh_etm = 1