TS 33.128 CR 702 - Adding TLS 1.3 IRI for AKMA LI

UAStarParams ::= CHOICE

{

    tls12                 [1] TLS12UAStarParams,

    generic               [2] GenericUAStarParams

    generic               [2] GenericUAStarParams,

    tls13                 [3] TLS13UAStarParams

}

GenericUAStarParams ::= SEQUENCE

    tLSClientExtensions   [19] OCTET STRING (SIZE(0..65535)) OPTIONAL

}

-- ==================================================

-- Specific UaStarParams for TLS 1.3 (RFC8446)

-- Inline references below are to clauses of RFC8446.

-- ==================================================

-- RFC8846, clause 4.2: Available handshake extension types.

TLS13ExtensionType ::= ENUMERATED

{

        serverName(1),

        maxFragmentLength(2),

        statusRequest(3),

        supportedGroups(4),

        signatureAlgorithms(5),

        useSRTP(6),

        heartbeat(7),

        applicationLayerProtocolNegotiation(8),

        signedCertificateTimestamp(9),

        clientCertificateType(10),

        serverCertificateType(11),

        padding(12),

        presharedKey(13),

        earlyData(14),

        supportedVersions(15),

        cookie(16),

        pSKKeyExchangeModes(17),

        certificateAuthorities(18),

        oIDFilters(19),

        postHandshakeAuth(20),

        signatureAlgorithmsCert(21),

        keyShare(22)

}

-- RFC8846, clause 4.2: Extensions.

-- Carried as extension to the client's and server's

-- Hello, or, in the server's EncryptedExtensions message.

TLS13Extension ::= SEQUENCE

{

    extensionType [1] TLS13ExtensionType,

    extensionData [2] OCTET STRING (SIZE(0..65535))

}

-- RFC8446, clauses 4.1, 4.2, 7.1, and B.4: Cryptographic transforms

-- RFC8446, clauses 4.1.1 and 4.1.2: Ciphersuite

TLS13CipherSuite ::= CHOICE

{

    rfc8446               [1] TLSCipherSuite

    -- Extensible for possible future purposes

}

-- RFC8446, clause 7.1 and B.4: Key derivation function.

TLS13KDFAlgorithm ::= ENUMERATED

{

    rfc5869(1)     -- HKDF

}

-- RFC8846, clause 4.2.11 and B.4: Hash algorithm.

TLS13PSKHashAlgorithm ::= ENUMERATED

{

    sha256(1),

    sha384(2),

    sha512(3)

}

-- RFC8446, clause 4.4.2: Certificates.

TLS13CertificateType ::= ENUMERATED

{

    x509(1),

    rawPublicKey(2)

}

TLS13CerificateEntry ::= SEQUENCE

{

    tLSCertificateType [1] TLS13CertificateType,

    tLSCertificateData [2] OCTET STRING (SIZE(1..16777215)),

    extensions         [3] SEQUENCE OF TLS13Extension OPTIONAL

}

-- This will typically correspond to a certificate chain.

TLS13Certificate ::= SEQUENCE

{

    tLSCertificateRequestContext [1] OCTET STRING (SIZE(0..255)),

    tLSCertificateList           [2] SEQUENCE OF TLS13CerificateEntry

}

-- RFC 8446, clause 4.2.9: Preshared key exchange mode.

TLS13PSKKeyExchangeMode ::= ENUMERATED

{

    pSKKE(1),

    pSKDHEKE(2)

}

-- RFC8446, clause 4.2.11: Preshared keys (PSKs).

-- PSKs obtained from AKMA use a specific prefix as part

-- of the identity: 3GPP-AKMA, see TS 33.535 and 33.222.

TLS13PSKIdentity ::= SEQUENCE

{

    identity            [1] OCTET STRING (SIZE(1..65535)),

    obfuscatedTicketAge [2] INTEGER (0..4294967295)

}

TLS13OfferedPSK ::= SEQUENCE

{

    identity [1] TLS13PSKIdentity,

    binder   [2] OCTET STRING (SIZE(32..255))

}

-- Actual TLS PSK, either explicitly provisioned or derived from

-- an earlier issued TLS ticket and a resumptionMasterSecret.

-- For AKMA, the PSK is the AKMA key K_AF.

TLS13PSKInfo ::= SEQUENCE

{

    pSKIdentity        [1] TLS13PSKIdentity,

    pSKValue           [2] OCTET STRING,

    pSKKeyExchangeMode [3] TLS13PSKKeyExchangeMode,

    hashAlgorithm      [4] TLS13PSKHashAlgorithm

}

-- RFC 8446, clause 4.6.1: Tickets/resumption info.

TLS13NewSessionTicket ::= SEQUENCE

{

    ticketLifeTime [1] INTEGER (0..4294967295),

    ticketAgeAdd   [2] INTEGER (0..4294967295),

    ticketNonce    [3] OCTET STRING (SIZE(0..255)),

    ticket         [4] OCTET STRING (SIZE(1..65535)),

    extensions     [5] SEQUENCE OF TLS13Extension OPTIONAL

}

-- RFC8446, clause 7.1 and 4.2.8: TLS-internal keys

-- These keys/secrets are never directly used to encrypt

-- data, and are therefore optional to provide as part of

-- TLS13UAStarParams.

-- RFC8446, clause 4.2.8

-- Shared Diffie-Hellman secret: derived from client's

-- and server's key shares (as included in extensions).

-- Can later be extended by adding PQC-based secrets,

-- see e.g. draft-ietf-tls-hybrid-design-10.

TLS13EstablishedSecrets ::= SEQUENCE

{

    dHE           [1] OCTET STRING (SIZE(1..65535)) OPTIONAL

}

-- RFC8446, clause 7.1

-- The actual encryption keys are derived from the respective secret

-- values below and the provided hashed handshake-message-transcript.

TLS13EarlySecretInfo ::= SEQUENCE

{

    earlySecretValue [1] OCTET STRING (SIZE(1..65535)),

    transcriptHash   [2] OCTET STRING (SIZE(1..65535))

    -- Hash(ClientHello)

}

TLS13HandshakeSecretInfo ::= SEQUENCE

{

    handshakeSecretValue [1] OCTET STRING (SIZE(1..65535)),

    transcriptHash       [2] OCTET STRING (SIZE(1..65535))

    -- Hash(ClientHello..ServerHello)

}

TLS13MasterSecretInfo ::= SEQUENCE

{

    masterSecretValue [1] OCTET STRING (SIZE(1..65535)),

    transcriptHashS   [2] OCTET STRING (SIZE(1..65535)),

    -- Hash(ClientHello..server Finished)

    transcriptHashC   [3] OCTET STRING (SIZE(1..65535))

    -- Hash(ClientHello..client Finished)

}

-- Complete TLS 1.3 cryptographic context.

TLS13UAStarParams ::= SEQUENCE

{

    -- Basic cryptographic information.

    --

    -- The offeredPSKs, offeredPSKModes and selectedPSK

    -- parameters are also provided as part of client and

    -- server extensions below.

    --

    -- PSKs and key exchange modes offered by the client, see

    -- clause 4.2.9, 4.2.11. When AKMA (or other CSP-provided)

    -- keys are used, at least one offered PSK and key exchange mode

    -- will always be present in the client extensions

    offeredPSKs                      [1] SEQUENCE OF TLS13OfferedPSK,

    offeredPSKKeyExchangeModes       [2] SEQUENCE OF TLS13PSKKeyExchangeMode,

    -- The server-selected PSK, clause 4.2.11

    -- selectedPSKIdentity = j means the server selects j:th offered PSK.

    selectedPSKIdentity              [3] INTEGER (0..65535),

    -- The actual TLS PSK. When AKMA is used, this key will typically also

    -- be provided as an associated AFKeyInfo IRI, see below.

    selectedPSK                      [4] TLS13PSKInfo,

    -- Cryptographic state: transforms and sequence numbers.

    kDFAlgorithm                     [5] TLS13KDFAlgorithm, -- clause 7.1.

    clientSupportedCipherSuites      [6] SEQUENCE OF TLS13CipherSuite OPTIONAL,

    selectedCipherSuite              [7] TLS13CipherSuite, -- clause 4.2 and B.4.

    clientSequenceNumber             [8] INTEGER, -- clause 5.3

    serverSequenceNumber             [9] INTEGER, -- clause 5.3

    -- Handshake parameters, clause 4.1.2 and 4.1.3.

    clientRandom                    [10] OCTET STRING (SIZE(32)),

    serverRandom                    [11] OCTET STRING (SIZE(32)),

    legacySessionID                 [12] OCTET STRING (SIZE(0..32)),

    -- Complete contents of handshake extensions, clause 4.2.

    tLSClientHelloExtensions        [13] SEQUENCE OF TLS13Extension,

    tLSServerHelloExtensions        [14] SEQUENCE OF TLS13Extension,

    -- Encrypted server extensions, clause 4.3.1 (here provided in plaintext).

    tLSPlaintextEncryptedExtensions [15] SEQUENCE OF TLS13Extension OPTIONAL,

    -- Authentication related parameters, clause 4.4

    -- Certificates are encrypted between client and server,

    -- these are the unencrypted certificate(s).

    tLSPlaintextClientCertificate   [16] TLS13Certificate OPTIONAL,

    tLSPlaintextServerCertificate   [17] TLS13Certificate OPTIONAL,

    -- Session key information fields, clause 7.1

    earlySecret                     [18] TLS13EarlySecretInfo OPTIONAL,

    binderKey                       [19] OCTET STRING (SIZE(1..65535)) OPTIONAL,

    -- The key used by the cipher suite to encrypt early data is

    -- derived from clientEarlyTrafficSecret as described in clause 7.3.

    clientEarlyTrafficSecret        [20] OCTET STRING (SIZE(1..65535)),

    earlyExporterMasterSecret       [21] OCTET STRING (SIZE(1..65535)),

    -- Established shared key (from Diffie-Hellman or similar).

    sharedKey                       [22] TLS13EstablishedSecrets OPTIONAL,

    handshakeSecret                 [23] TLS13HandshakeSecretInfo OPTIONAL,

    -- The keys used by the cipher suite to encrypt the handshake are

    -- derived from client- and serverHandshakeTrafficSecret as

    -- described in clause 7.3.

    clientHandshakeTrafficSecret    [24] OCTET STRING (SIZE(1..65535)),

    serverHandshakeTrafficSecret    [25] OCTET STRING (SIZE(1..65535)),

    masterSecret                    [26] TLS13MasterSecretInfo OPTIONAL,

    -- The client and server application traffic secrets

    -- can change value during an ongoing session due to

    -- KeyUdpateRequest messages. The values to be provided below

    -- refer to the currently valid ones when the IRI message is

    -- generated.

    -- The keys used by the cipher suite to encrypt the application

    -- traffic are derived from client- and serverApplicationTrafficSecret

    -- as described in clause 7.3.

    clientApplicationTrafficSecret  [27] OCTET STRING (SIZE(1..65535)),

    serverApplicationTrafficSecret  [28] OCTET STRING (SIZE(1..65535)),

    -- Other session-specific keys.

    exporterMasterSecret            [29] OCTET STRING (SIZE(1..65535)),

    resumptionMasterSecret          [30] OCTET STRING (SIZE(1..65535)),

    -- Tickets for resumption (issued during current session), clause 4.6.2.

    tLSResumptionTickets            [31] SEQUENCE OF TLS13NewSessionTicket OPTIONAL

}

KAF ::= OCTET STRING

KAKMA ::= OCTET STRING