ref: b548687a8ed1d0a159c9d3f3f921d93bbb56908e
dir: /module/spki.m/
Rawsexprs: module
{
PATH: con "rawsexprs.dis";
Sexp: adt {
pick {
String =>
s: string;
hint: string;
Binary =>
data: array of byte;
hint: string;
List =>
l: cyclic list of ref Sexp;
}
unpack: fn(a: array of byte): (ref Sexp, array of byte, string);
text: fn(e: self ref Sexp): string;
packedsize: fn(e: self ref Sexp): int;
pack: fn(e: self ref Sexp): array of byte;
};
init: fn();
};
SPKI: module
{
PATH: con "/dis/lib/spki/spki.dis";
Hash: adt {
alg: string;
hash: array of byte;
sexp: fn(h: self ref Hash): ref Sexprs->Sexp;
text: fn(h: self ref Hash): string;
eq: fn(h1: self ref Hash, h2: ref Hash): int;
};
Key: adt {
pk: ref Keyring->PK; # either pk/sk or hash might be nil
sk: ref Keyring->SK;
nbits: int;
halg: string; # basic signature hash algorithm
henc: string; # pre-signature encoding
hash: list of ref Hash;
hashed: fn(k: self ref Key, alg: string): array of byte;
hashexp: fn(k: self ref Key, alg: string): ref Hash;
ishash: fn(k: self ref Key): int;
public: fn(k: self ref Key): ref Key;
sigalg: fn(k: self ref Key): string;
text: fn(k: self ref Key): string;
sexp: fn(k: self ref Key): ref Sexprs->Sexp;
eq: fn(k1: self ref Key, k2: ref Key): int;
};
Name: adt {
principal: ref Key;
names: list of string;
isprincipal: fn(n: self ref Name): int;
local: fn(n: self ref Name): ref Name;
islocal: fn(n: self ref Name): int;
isprefix: fn(n1: self ref Name, n2: ref Name): int;
text: fn(n: self ref Name): string;
sexp: fn(n: self ref Name): ref Sexprs->Sexp;
eq: fn(n1: self ref Name, n2: ref Name): int;
};
Cert: adt {
e: ref Sexprs->Sexp; # S-expression, if originally parsed
issuer: ref Name;
subject: ref Subject;
valid: ref Valid;
pick {
A or KH or O => # auth, keyholder or object
delegate: int;
tag: ref Sexprs->Sexp;
N => # name
}
text: fn(c: self ref Cert): string;
sexp: fn(c: self ref Cert): ref Sexprs->Sexp;
};
# the pick might move to a more general `Principal' structure,
# allowing compound and quoting principals
Subject: adt {
pick{
P =>
key: ref Key;
N =>
name: ref Name;
O =>
hash: ref Hash;
KH =>
holder: ref Name;
T =>
k, n: int;
subs: cyclic list of ref Subject;
}
eq: fn(s1: self ref Subject, s2: ref Subject): int;
principal: fn(s: self ref Subject): ref Key;
text: fn(s: self ref Subject): string;
sexp: fn(s: self ref Subject): ref Sexprs->Sexp;
};
Principal: adt[T] {
pick{
N =>
name: ref Name;
Q =>
quoter: T;
quotes: cyclic ref Principal;
}
};
Signature: adt {
hash: ref Hash;
key: ref Key; # find by hash if necessary
sa: string; # alg[-[encoding-]hash]
sig: list of (string, array of byte);
algs: fn(s: self ref Signature): (string, string, string);
sexp: fn(s: self ref Signature): ref Sexprs->Sexp;
text: fn(s: self ref Signature): string;
};
Seqel: adt {
pick{
C =>
c: ref Cert;
K =>
k: ref Key;
O =>
op: string;
args: list of ref Sexprs->Sexp;
S =>
sig: ref Signature;
RV => # <reval>
ok: list of (string, string);
onetime: array of byte;
valid: ref Valid;
CRL =>
bad: list of (string, string);
valid: ref Valid;
Delta =>
hash: string;
bad: list of (string, string);
valid: ref Valid;
E =>
exp: ref Sexprs->Sexp;
}
sexp: fn(se: self ref Seqel): ref Sexprs->Sexp;
text: fn(se: self ref Seqel): string;
};
Valid: adt {
notbefore: string;
notafter: string;
intersect: fn(a: self Valid, b: Valid): (int, Valid);
text: fn(a: self Valid): string;
sexp: fn(a: self Valid): ref Sexprs->Sexp;
};
Toplev: adt {
pick {
C =>
v: ref Cert;
Sig =>
v: ref Signature;
K =>
v: ref Key;
Seq =>
v: list of ref Seqel;
}
sexp: fn(t: self ref Toplev): ref Sexprs->Sexp;
text: fn(t: self ref Toplev): string;
};
init: fn();
# parse structures
parse: fn(s: ref Sexprs->Sexp): (ref Toplev, string);
parseseq: fn(s: ref Sexprs->Sexp): list of ref Seqel;
parsecert: fn(s: ref Sexprs->Sexp): ref Cert;
parsesig: fn(s: ref Sexprs->Sexp): ref Signature;
parsename: fn(s: ref Sexprs->Sexp): ref Name;
parsekey: fn(s: ref Sexprs->Sexp): ref Key;
parsehash: fn(s: ref Sexprs->Sexp): ref Hash;
parsecompound: fn(s: ref Sexprs->Sexp): ref Name;
parsevalid: fn(s: ref Sexprs->Sexp): ref Valid;
# signature checking
checksig: fn(c: ref Cert, sig: ref Signature): string;
sig2icert: fn(sig: ref Signature, signer: string, exp: int): ref Keyring->Certificate;
# signature making
signcert: fn(c: ref Cert, sigalg: string, key: ref Key): (ref Signature, string);
signbytes: fn(a: array of byte, sigalg: string, key: ref Key): (ref Signature, string);
# tags
maketag: fn(e: ref Sexprs->Sexp): ref Sexprs->Sexp;
tagintersect: fn(t1: ref Sexprs->Sexp, t2: ref Sexprs->Sexp): ref Sexprs->Sexp;
tagimplies: fn(t1: ref Sexprs->Sexp, t2: ref Sexprs->Sexp): int;
# hash canonical s-expression
hashbytes: fn(a: array of byte, alg: string): array of byte;
hashexp: fn(e: ref Sexprs->Sexp, alg: string): array of byte;
# convert between date and time strings and Inferno form
date2epoch: fn(s: string): int; # YYYY-MM-DD_HH:MM:SS
epoch2date: fn(t: int): string;
time2secs: fn(s: string): int; # HH:MM:SS
secs2time: fn(t: int): string;
# misc
sigalgs: fn(algs: string): (string, string, string);
# debugging
dump: fn(s: string, a: array of byte);
};
Proofs: module
{
Proof: adt {
n: int;
parse: fn(s: string): ref Proof;
sexp: fn(p: self ref Proof): ref Sexprs->Sexp;
text: fn(p: self ref Proof): string;
};
init: fn(): string;
};
Verifier: module
{
PATH: con "/dis/lib/spki/verifier.dis";
Speaksfor: adt {
subject: ref SPKI->Subject;
name: ref SPKI->Name;
regarding: ref Sexprs->Sexp;
valid: ref SPKI->Valid;
};
init: fn();
verify: fn(seq: list of ref SPKI->Seqel): (ref Speaksfor, list of ref SPKI->Seqel, string);
};