tor/src/trunnel/link_handshake.trunnel

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struct certs_cell {
u8 n_certs;
struct certs_cell_cert certs[n_certs];
}
const CERTTYPE_RSA1024_ID_LINK = 1;
const CERTTYPE_RSA1024_ID_ID = 2;
const CERTTYPE_RSA1024_ID_AUTH = 3;
const CERTTYPE_ED_ID_SIGN = 4;
const CERTTYPE_ED_SIGN_LINK = 5;
const CERTTYPE_ED_SIGN_AUTH = 6;
const CERTTYPE_RSA1024_ID_EDID = 7;
struct certs_cell_cert {
u8 cert_type;
u16 cert_len;
u8 body[cert_len];
}
struct rsa_ed_crosscert {
u8 ed_key[32];
u32 expiration;
@ptr end_of_signed;
u8 sig_len;
u8 sig[sig_len]; // mismatches spec.
}
struct auth_challenge_cell {
u8 challenge[32];
u16 n_methods;
u16 methods[n_methods];
}
context auth_ctx {
u8 is_ed;
}
struct auth1 with context auth_ctx {
u8 type[8];
u8 cid[32];
u8 sid[32];
union u1[auth_ctx.is_ed] {
0 : ;
1 : u8 cid_ed[32];
u8 sid_ed[32];
default: fail;
};
u8 slog[32];
u8 clog[32];
u8 scert[32];
u8 tlssecrets[32];
@ptr end_of_fixed_part;
u8 rand[24];
@ptr end_of_signed;
u8 sig[];
}