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/proc/4/root/usr/share/crypto-policies/policies

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FUTURE.pol2.5 KB · 67 lines
# A level that will provide security on a conservative level that is# believed to withstand any near-term future attacks. And also provide# some (not complete) preparation for post quantum encryption support# in form of 256 bit symmetric encryption requirement.# It provides at least an 128-bit security. This level may prevent# communication with many used systems that provide weaker security levels# (e.g., systems that use SHA-1 as signature algorithm). # MACs: all HMAC with SHA256 or better + all modern MACs (Poly1305 etc)# Curves: all prime >= 255 bits (including Bernstein curves)# Signature algorithms: with SHA-256 hash or better (no DSA)# TLS Ciphers: >= 256-bit key, >= 128-bit block, only Authenticated Encryption (AE) ciphers, no CBC ciphers# non-TLS Ciphers: same as TLS Ciphers with added non AE ciphers, CBC only for Kerberos# key exchange: ECDHE, DHE (no DHE-DSS)# DH params size: >= 3072# RSA params size: >= 3072# TLS protocols: TLS >= 1.2, DTLS >= 1.2 mac = AEAD HMAC-SHA2-256 UMAC-128 HMAC-SHA2-384 HMAC-SHA2-512mac@Kerberos = HMAC-SHA2-384 HMAC-SHA2-256 AEAD UMAC-128 HMAC-SHA2-512 group = X25519 SECP256R1 X448 SECP521R1 SECP384R1 \        FFDHE-3072 FFDHE-4096 FFDHE-6144 FFDHE-8192 hash = SHA2-256 SHA2-384 SHA2-512 SHA3-256 SHA3-384 SHA3-512 SHAKE-256 sign = ECDSA-SHA3-256 ECDSA-SHA2-256 ECDSA-SHA2-256-FIDO \       ECDSA-SHA3-384 ECDSA-SHA2-384 \       ECDSA-SHA3-512 ECDSA-SHA2-512 \       EDDSA-ED25519 EDDSA-ED25519-FIDO EDDSA-ED448 \       RSA-PSS-SHA3-256 RSA-PSS-SHA2-256 \       RSA-PSS-SHA3-384 RSA-PSS-SHA2-384 \       RSA-PSS-SHA3-512 RSA-PSS-SHA2-512 \       RSA-PSS-RSAE-SHA3-256 RSA-PSS-RSAE-SHA2-256 \       RSA-PSS-RSAE-SHA3-384 RSA-PSS-RSAE-SHA2-384 \       RSA-PSS-RSAE-SHA3-512 RSA-PSS-RSAE-SHA2-512 \       RSA-SHA3-256 RSA-SHA2-256 \       RSA-SHA3-384 RSA-SHA2-384 \       RSA-SHA3-512 RSA-SHA2-512 cipher = AES-256-GCM AES-256-CCM CHACHA20-POLY1305 \         AES-256-CTRcipher@Kerberos = AES-256-CBC+ cipher@TLS = AES-256-GCM AES-256-CCM CHACHA20-POLY1305 # CBC ciphers in SSH are considered vulnerable to plaintext recovery attacks# and disabled in client OpenSSH 7.6 (2017) and server OpenSSH 6.7 (2014).cipher@SSH = -*-CBC key_exchange = ECDHE DHE DHE-RSA PSK DHE-PSK ECDHE-PSK ECDHE-GSS DHE-GSS protocol@TLS = TLS1.3 TLS1.2 DTLS1.2protocol@IKE = IKEv2 # Parameter sizesmin_dh_size = 3072min_dsa_size = 3072  # DSA is disabledmin_rsa_size = 3072 # GnuTLS only for nowsha1_in_certs = 0 arbitrary_dh_groups = 1ssh_certs = 1etm@ssh = ANY