Add Chrome 139 parrot preset (GREASE keyshare, google_initial_rtt 0x3127)

[Juktong]

Summary
I captured Chrome 139’s QUIC/TLS 1.3 ClientHello with Wireshark. It differs from QUICChrome_115_{IPv4,IPv6} in several fingerprint-relevant fields. I’ll open a PR to add QUICChrome_139_{IPv4,IPv6} before next week. I will attach a sanitized ClientHello tree from Wireshark (personal info removed).

Key diffs vs current parrot

• QUIC TP includes google_initial_rtt 0x3127; omit google_connection_options 0x3128.
• GREASE unknown extension 0x44CD (length 5); supported_groups starts with 0x11EC then x25519,p256,p384; key_share first entry 0x11EC (~1216 B) then x25519.
• Resumption path pre_shared_key (41) and early_data (42) present (should be toggleable).

Proposed change

• Add QUICChrome_139 in u_parrot.go.
• Update QUIC TPs to include 0x3127 and omitting 0x3128.
• Add GREASE group/key_share and unknown GREASE ext 0x44CD.

Captured QUIC Client hello

Handshake Protocol: Client Hello
    Handshake Type: Client Hello (1)
    Length: 2220
    Version: TLS 1.2 (0x0303)
    Random: *
    Session ID Length: 0
    Cipher Suites Length: 6
    Cipher Suites (3 suites)
        Cipher Suite: TLS_AES_128_GCM_SHA256 (0x1301)
        Cipher Suite: TLS_AES_256_GCM_SHA384 (0x1302)
        Cipher Suite: TLS_CHACHA20_POLY1305_SHA256 (0x1303)
    Compression Methods Length: 1
    Compression Methods (1 method)
        Compression Method: null (0)
    Extensions Length: 2173
    Extension: compress_certificate (len=3)
        Type: compress_certificate (27)
        Length: 3
        Algorithms Length: 2
        Algorithm: brotli (2)
    Extension: quic_transport_parameters (len=93)
        Type: quic_transport_parameters (57)
        Length: 93
        Parameter: initial_max_stream_data_bidi_remote (len=4) 6291456
            Type: initial_max_stream_data_bidi_remote (0x06)
            Length: 4
            Value: 80600000
            initial_max_stream_data_bidi_remote: 6291456
        Parameter: initial_max_stream_data_uni (len=4) 6291456
            Type: initial_max_stream_data_uni (0x07)
            Length: 4
            Value: 80600000
            initial_max_stream_data_uni: 6291456
        Parameter: initial_max_stream_data_bidi_local (len=4) 6291456
            Type: initial_max_stream_data_bidi_local (0x05)
            Length: 4
            Value: 80600000
            initial_max_stream_data_bidi_local: 6291456
        Parameter: google_quic_version (len=4)
            Type: google_quic_version (0x4752)
            Length: 4
            Value: 00000001
            Google QUIC version: 1 (0x00000001)
        Parameter: max_idle_timeout (len=4) 30000 ms
            Type: max_idle_timeout (0x01)
            Length: 4
            Value: 80007530
            max_idle_timeout: 30000
        Parameter: max_datagram_frame_size (len=4) 65536
            Type: max_datagram_frame_size (0x20)
            Length: 4
            Value: 80010000
            max_datagram_frame_size: 65536
        Parameter: initial_source_connection_id (len=0)
            Type: initial_source_connection_id (0x0f)
            Length: 0
            Value: <MISSING>
            Initial Source Connection ID: <MISSING>
        Parameter: initial_max_streams_bidi (len=2) 100
            Type: initial_max_streams_bidi (0x08)
            Length: 2
            Value: 4064
            initial_max_streams_bidi: 100
        Parameter: google_initial_rtt (len=4) 45508 us
            Type: google_initial_rtt (0x3127)
            Length: 4
            Value: 8000b1c4
            Google Initial RTT: 45508
        Parameter: version_information (len=12)
            Type: version_information (0x11)
            Length: 12
            Value: 00000001000000018a0aba6a
            Chosen Version: 1 (0x00000001)
            Other Version: 1 (0x00000001)
            Other Version: Unknown (0x8a0aba6a) (GREASE)
        Parameter: initial_max_data (len=4) 15728640
            Type: initial_max_data (0x04)
            Length: 4
            Value: 80f00000
            initial_max_data: 15728640
        Parameter: max_udp_payload_size (len=2) 1472
            Type: max_udp_payload_size (0x03)
            Length: 2
            Value: 45c0
            max_udp_payload_size: 1472
        Parameter: GREASE (len=4)
            Type: GREASE (0x1f657a19f98e5ad1)
            Length: 4
            Value: 9c65bb33
        Parameter: initial_max_streams_uni (len=2) 103
            Type: initial_max_streams_uni (0x09)
            Length: 2
            Value: 4067
            initial_max_streams_uni: 103
    Extension: supported_versions (len=3) TLS 1.3
        Type: supported_versions (43)
        Length: 3
        Supported Versions length: 2
        Supported Version: TLS 1.3 (0x0304)
    Extension: server_name (len=25) name=accounts.youtube.com
        Type: server_name (0)
        Length: 25
        Server Name Indication extension
            Server Name list length: 23
            Server Name Type: host_name (0)
            Server Name length: 20
            Server Name: accounts.youtube.com
    Extension: Unknown type 17613 (len=5)
        Type: Unknown (17613)
        Length: 5
        Data: 0003026833
    Extension: psk_key_exchange_modes (len=2)
        Type: psk_key_exchange_modes (45)
        Length: 2
        PSK Key Exchange Modes Length: 1
        PSK Key Exchange Mode: PSK with (EC)DHE key establishment (psk_dhe_ke) (1)
    Extension: encrypted_client_hello (len=218)
        Type: encrypted_client_hello (65037)
        Length: 218
        Client Hello type: Outer Client Hello (0)
        Cipher Suite: HKDF-SHA256/AES-128-GCM
            KDF Id: HKDF-SHA256 (1)
            AEAD Id: AES-128-GCM (1)
        Config Id: 70
        Enc length: 32
        Enc: *
        Payload length: 176
        Payload [truncated]: *
    Extension: application_layer_protocol_negotiation (len=5)
        Type: application_layer_protocol_negotiation (16)
        Length: 5
        ALPN Extension Length: 3
        ALPN Protocol
            ALPN string length: 2
            ALPN Next Protocol: h3
    Extension: supported_groups (len=10)
        Type: supported_groups (10)
        Length: 10
        Supported Groups List Length: 8
        Supported Groups (4 groups)
            Supported Group: Unknown (0x11ec)
            Supported Group: x25519 (0x001d)
            Supported Group: secp256r1 (0x0017)
            Supported Group: secp384r1 (0x0018)
    Extension: signature_algorithms (len=20)
        Type: signature_algorithms (13)
        Length: 20
        Signature Hash Algorithms Length: 18
        Signature Hash Algorithms (9 algorithms)
            Signature Algorithm: ecdsa_secp256r1_sha256 (0x0403)
                Signature Hash Algorithm Hash: SHA256 (4)
                Signature Hash Algorithm Signature: ECDSA (3)
            Signature Algorithm: rsa_pss_rsae_sha256 (0x0804)
                Signature Hash Algorithm Hash: Unknown (8)
                Signature Hash Algorithm Signature: Unknown (4)
            Signature Algorithm: rsa_pkcs1_sha256 (0x0401)
                Signature Hash Algorithm Hash: SHA256 (4)
                Signature Hash Algorithm Signature: RSA (1)
            Signature Algorithm: ecdsa_secp384r1_sha384 (0x0503)
                Signature Hash Algorithm Hash: SHA384 (5)
                Signature Hash Algorithm Signature: ECDSA (3)
            Signature Algorithm: rsa_pss_rsae_sha384 (0x0805)
                Signature Hash Algorithm Hash: Unknown (8)
                Signature Hash Algorithm Signature: Unknown (5)
            Signature Algorithm: rsa_pkcs1_sha384 (0x0501)
                Signature Hash Algorithm Hash: SHA384 (5)
                Signature Hash Algorithm Signature: RSA (1)
            Signature Algorithm: rsa_pss_rsae_sha512 (0x0806)
                Signature Hash Algorithm Hash: Unknown (8)
                Signature Hash Algorithm Signature: Unknown (6)
            Signature Algorithm: rsa_pkcs1_sha512 (0x0601)
                Signature Hash Algorithm Hash: SHA512 (6)
                Signature Hash Algorithm Signature: RSA (1)
            Signature Algorithm: rsa_pkcs1_sha1 (0x0201)
                Signature Hash Algorithm Hash: SHA1 (2)
                Signature Hash Algorithm Signature: RSA (1)
    Extension: key_share (len=1258) Unknown (4588), x25519
        Type: key_share (51)
        Length: 1258
        Key Share extension
            Client Key Share Length: 1256
            Key Share Entry: Group: Unknown (4588), Key Exchange length: 1216
                Group: Unknown (4588)
                Key Exchange Length: 1216
                Key Exchange [truncated]: *
            Key Share Entry: Group: x25519, Key Exchange length: 32
                Group: x25519 (29)
                Key Exchange Length: 32
                Key Exchange: *
    Extension: early_data (len=0)
        Type: early_data (42)
        Length: 0
    Extension: pre_shared_key (len=479)
        Type: pre_shared_key (41)
        Length: 479
        Pre-Shared Key extension
            Identities Length: 442
            PSK Identity (length: 436)
                Identity Length: 436
                Identity [truncated]: *
                Obfuscated Ticket Age: *
            PSK Binders length: 33
            PSK Binders
    [JA4: u13d0313h3_55b375c5d22e_226f3f127bbe]
    [JA4_r: u13d0313h3_1301,1302,1303_000a,000d,001b,0029,002a,002b,002d,0033,0039,44cd,fe0d_0403,0804,0401,0503,0805,0501,0806,0601,0201]
    [JA3 Fullstring: 771,4865-4866-4867,27-57-43-0-17613-45-65037-16-10-13-51-42-41,4588-29-23-24,]
    [JA3: 82f426fce8cc17b3c83eefbc7dcf677b]