Pedro Monreal Gonzalez
aaa823e0a2
- BSI.pol: Added a new BSI policy for BSI TR 02102* (jsc#PED-4933) derived from NEXT.pol OBS-URL: https://build.opensuse.org/request/show/1098705 OBS-URL: https://build.opensuse.org/package/show/security:tls/crypto-policies?expand=0&rev=18
88 lines
4.1 KiB
Plaintext
88 lines
4.1 KiB
Plaintext
# This policy follows the BSI TR-02102-2 "Kryptographische Verfahren: Verwendung von Transport Layer Security (TLS)"
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# Generic:https://www.bsi.bund.de/SharedDocs/Downloads/DE/BSI/Publikationen/TechnischeRichtlinien/TR02102/BSI-TR-02102.html
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# TLS: https://www.bsi.bund.de/SharedDocs/Downloads/DE/BSI/Publikationen/TechnischeRichtlinien/TR02102/BSI-TR-02102-2.html
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# IPSEC: https://www.bsi.bund.de/SharedDocs/Downloads/DE/BSI/Publikationen/TechnischeRichtlinien/TR02102/BSI-TR-02102-3.html
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# Note that currently crypto-policies do not adjust ipsec configs, but only openssl or nss.
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# SSH: https://www.bsi.bund.de/SharedDocs/Downloads/DE/BSI/Publikationen/TechnischeRichtlinien/TR02102/BSI-TR-02102-4.html
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# Note that the SUSE openssh is not yet reading crypto policies.
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# Author: Marcus Meissner <meissner@suse.de> 2023
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#
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# Based on NEXT.pol
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# BSI TR 02102 / revision 2023.1, Table 5.1 "Empfohlene Hashfunktionen."
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# HMAC-SHA1 is not valid anymore
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# UMAC is for SSH... check TODO
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mac = AEAD HMAC-SHA2-256 UMAC-128 HMAC-SHA2-384 HMAC-SHA2-512
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# BSI TR 02102-2 / revision 2023.1, Table 4 "Empfohlene Diffie-Hellman-Gruppen für TLS 1.2"
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# not listed in BSI TR, but could be included: FFDHE-6144 FFDHE-8192
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group = SECP256R1 SECP384R1 SECP521R1 FFDHE-2048 FFDHE-3072 FFDHE-4096 BRAINPOOL-P512R1 BRAINPOOL-P384R1 BRAINPOOL-P256R1
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# BSI TR 02102 / revision 2023.1, Table 5.1 "Empfohlene Hashfunktionen."
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hash = SHA2-256 SHA2-384 SHA2-512 SHA3-256 SHA3-384 SHA3-512
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hash@DNSSec = SHA1+ # SHA1 is still prevalent in DNSSec
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# BSI TR 02102-2 / revision 2023.1, Table 5 "Empfohlene Signaturverfahren für TLS 1.2" and
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# Table 6 "Empfohlene Hashfunktionen für Signaturverfahren in TLS 1.2"
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# BSI TR 02102 / revision 2023.1 Section 5 "Hashfunktionen"
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# 224 bit SHA parts not recommended by BSI: ECDSA-SHA2-224 RSA-PSS-SHA2-224 RSA-SHA2-224 ECDSA-SHA3-224 RSA-PSS-SHA3-224 RSA-SHA3-224
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sign = ECDSA-SHA3-256 ECDSA-SHA2-256 ECDSA-SHA2-256-FIDO \
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ECDSA-SHA3-384 ECDSA-SHA2-384 \
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ECDSA-SHA3-512 ECDSA-SHA2-512 \
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EDDSA-ED25519 EDDSA-ED25519-FIDO EDDSA-ED448 \
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RSA-PSS-SHA3-256 RSA-PSS-SHA2-256 \
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RSA-PSS-SHA3-384 RSA-PSS-SHA2-384 \
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RSA-PSS-SHA3-512 RSA-PSS-SHA2-512 \
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RSA-PSS-RSAE-SHA3-256 RSA-PSS-RSAE-SHA2-256 \
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RSA-PSS-RSAE-SHA3-384 RSA-PSS-RSAE-SHA2-384 \
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RSA-PSS-RSAE-SHA3-512 RSA-PSS-RSAE-SHA2-512 \
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RSA-SHA3-256 RSA-SHA2-256 \
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RSA-SHA3-384 RSA-SHA2-384 \
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RSA-SHA3-512 RSA-SHA2-512
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sign@DNSSec = RSA-SHA1+ ECDSA-SHA1+ # SHA1 is still prevalent in DNSSec
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# BSI TR 02102 / revision 2023.1
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# Not listed in BSI TR: CHACHA20-POLY1305 CAMELLIA-256-GCM CAMELLIA-128-CBC CAMELLIA-256-CBC CAMELLIA-128-GCM
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cipher = AES-256-GCM AES-256-CCM AES-256-CTR AES-256-CBC AES-128-GCM AES-128-CCM AES-128-CTR AES-128-CBC
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# BSI TR 02102-2 / revision 2023.1, Table 1 and Table 2
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# CHACHA20-POLY1305 not listed in TR
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cipher@TLS = AES-256-GCM AES-256-CCM AES-256-CBC AES-128-GCM AES-128-CCM AES-128-CBC
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cipher@sequoia = AES-256-CFB AES-128-CFB CAMELLIA-256-CFB CAMELLIA-128-CFB
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cipher@RPM = AES-256-CFB AES-128-CFB CAMELLIA-256-CFB CAMELLIA-128-CFB
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# CBC ciphers in SSH are considered vulnerable to plaintext recovery attacks
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# and disabled in client OpenSSH 7.6 (2017) and server OpenSSH 6.7 (2014).
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cipher@SSH = -*-CBC
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# BSI TR 02102-2 / revision 2023.1, Table 1 and Table 2
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# Note this goes to all ciphers. DHE-GSS is not valid for TLS, but used in SSH.
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# TLS: ECDHE DHE DHE-RSA PSK DHE-PSK ECDHE-PSK RSA-PSK are ok, GSS is not used in TLS, will not be used for TLS
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key_exchange = ECDHE DHE DHE-RSA PSK DHE-PSK ECDHE-PSK RSA-PSK ECDHE-GSS DHE-GSS
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# BSI TR 02102-2 / revision 2023.1, Section 3.2 "SSL/TLS Versionen"
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protocol@TLS = TLS1.3 TLS1.2 DTLS1.2
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protocol@IKE = IKEv2
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# Parameter sizes
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min_dh_size = 3072
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min_dsa_size = 3072
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# BSI TR 02102-2 / revision 2023.1: 2k still allowed until end of 2023.
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min_rsa_size = 2048
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# GnuTLS only for now
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sha1_in_certs = 0
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arbitrary_dh_groups = 1
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ssh_certs = 1
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ssh_etm = 1
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# https://pagure.io/fesco/issue/2960
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# "RPM must accept SHA-1 hashes and DSA keys for Fedora 38"
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sign@RPM = DSA-SHA1+
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hash@RPM = SHA1+
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min_dsa_size@RPM = 1024
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