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authorIngela Anderton Andin <[email protected]>2012-04-19 09:46:36 +0200
committerIngela Anderton Andin <[email protected]>2013-01-11 15:05:34 +0100
commitfecba72496777b330cc481257def6d534472149c (patch)
tree600f144f6c9a9b051bf4666425eed3f555d8c65a /lib/public_key/src
parent1d054d8055435f6c9df687881f1f6425eb29c754 (diff)
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Support CRL verification in public_key
Diffstat (limited to 'lib/public_key/src')
-rw-r--r--lib/public_key/src/pubkey_crl.erl80
1 files changed, 45 insertions, 35 deletions
diff --git a/lib/public_key/src/pubkey_crl.erl b/lib/public_key/src/pubkey_crl.erl
index 9d50288974..3e4c3c8b6d 100644
--- a/lib/public_key/src/pubkey_crl.erl
+++ b/lib/public_key/src/pubkey_crl.erl
@@ -22,10 +22,11 @@
-include("public_key.hrl").
-export([validate/7, init_revokation_state/0, fresh_crl/3, verify_crl_signature/4,
- is_delta_crl/1, combines/2]).
+ is_delta_crl/1, combines/2, match_one/2]).
--record(userstate, {dpcrls
- }).
+-record(userstate, {dpcrls,
+ idp
+ }).
validate(OtpCert, OtherDPCRLs, DP, {DerCRL, CRL}, {DerDeltaCRL, DeltaCRL},
Options, RevokedState0) ->
@@ -172,7 +173,7 @@ verify_mask_and_signatures(Revoked, DeltaRevoked, RevokedState, CRL, DerCRL, Del
try
verify_interim_reasons_mask(RevokedState),
true = verify_crl_signatures(CRL, DerCRL, DeltaCRL, DerDeltaCRL,
- TrustedOtpCert, Path, IssuerFun, OtherDPCRLs),
+ TrustedOtpCert, Path, IssuerFun, OtherDPCRLs, IDP),
{valid, Revoked, DeltaRevoked, RevokedState#revoke_state{reasons_mask = ReasonsMask}, IDP}
catch
throw:_ ->
@@ -183,7 +184,7 @@ verify_mask_and_signatures(Revoked, DeltaRevoked, RevokedState, CRL, DerCRL, Del
verify_crl_signatures(CRL, DerCRL, DeltaCRL, DerDeltaCRL, TrustedOtpCert, Path,
- IssuerFun, OtherDPCRLs) ->
+ IssuerFun, OtherDPCRLs, IDP) ->
try
VerifyFunAndState =
{fun(_, {bad_cert, _} = Reason, _UserState) ->
@@ -195,11 +196,11 @@ verify_crl_signatures(CRL, DerCRL, DeltaCRL, DerDeltaCRL, TrustedOtpCert, Path,
(Cert, valid_peer, UserState) ->
case verify_crl_keybit(Cert, cRLSign) of
true ->
- handle_signer(Cert, IssuerFun, UserState);
+ handle_crlsigner(Cert, IssuerFun, UserState);
false ->
{fail, crl_sign_bit_not_set}
end
- end, #userstate{dpcrls = OtherDPCRLs}},
+ end, #userstate{dpcrls = OtherDPCRLs, idp = IDP}},
{ok, {{_,Key, KeyParams},_}} =
public_key:pkix_path_validation(TrustedOtpCert, Path,
@@ -211,17 +212,22 @@ verify_crl_signatures(CRL, DerCRL, DeltaCRL, DerDeltaCRL, TrustedOtpCert, Path,
false
end.
-handle_signer(OtpCert, IssuerFun, UserState) ->
+handle_crlsigner(OtpCert, IssuerFun, #userstate{idp = IDP} = UserState) ->
case verify_crl_keybit(OtpCert, keyCertSign) of
true ->
{valid, UserState};
false ->
- handle_crlsigner(OtpCert, IssuerFun, UserState)
+ case not is_indirect_crl(IDP) andalso not public_key:pkix_is_self_signed(OtpCert) of
+ true ->
+ validate_crl_signing_cert(OtpCert, IssuerFun, UserState);
+ false ->
+ {valid, UserState}
+ end
end.
-handle_crlsigner(_, _,#userstate{dpcrls = []} = UserState) ->
+validate_crl_signing_cert(_, _,#userstate{dpcrls = []} = UserState) ->
{valid, UserState};
-handle_crlsigner(OtpCert, IssuerFun, #userstate{dpcrls = CRLInfo} = UserState) ->
+validate_crl_signing_cert(OtpCert, IssuerFun, #userstate{dpcrls = CRLInfo} = UserState) ->
case public_key:pkix_crls_validate(OtpCert, CRLInfo, [{issuer_fun, IssuerFun}]) of
valid ->
{valid, UserState};
@@ -301,9 +307,9 @@ verify_issuer_and_scope(#'OTPCertificate'{tbsCertificate = TBSCert} = Cert,
issuer_id(Cert, CRL);
false ->
%% otherwise verify that the CRL issuer matches the certificate issuer
- verify_issuer_and_scope(Cert, DP#'DistributionPoint'{distributionPoint =
- [TBSCert#'OTPTBSCertificate'.issuer],
- cRLIssuer = asn1_NOVALUE},
+ verify_issuer_and_scope(Cert, DP#'DistributionPoint'{
+ distributionPoint = [TBSCert#'OTPTBSCertificate'.issuer],
+ cRLIssuer = asn1_NOVALUE},
IDP, CRL)
end;
verify_issuer_and_scope(#'OTPCertificate'{tbsCertificate = TBSCert}= Cert,
@@ -332,13 +338,18 @@ verify_scope(_,_, undefined) ->
ok;
verify_scope(#'OTPCertificate'{tbsCertificate = TBSCert}, #'DistributionPoint'{cRLIssuer = DPIssuer} = DP, IDP) ->
CertIssuer = TBSCert#'OTPTBSCertificate'.issuer,
- Names = gen_names(DPIssuer),
+ Names = case gen_names(DPIssuer) of
+ [{directoryName, TNames}] ->
+ TNames;
+ Other ->
+ Other
+ end,
DPName = dp_names(DP#'DistributionPoint'.distributionPoint, Names, CertIssuer),
IDPName = dp_names(IDP#'IssuingDistributionPoint'.distributionPoint, Names, CertIssuer),
verify_scope(DPName, IDPName, Names, TBSCert, IDP).
verify_scope(asn1_NOVALUE, _, asn1_NOVALUE, _, _) ->
- throw({bad_crl, scope_error});
+ throw({bad_crl, scope_error1});
verify_scope(asn1_NOVALUE, IDPName, DPIssuerNames, TBSCert, IDP) ->
verify_dp_name(IDPName, DPIssuerNames),
verify_dp_bools(TBSCert, IDP);
@@ -350,44 +361,43 @@ verify_scope(DPName, IDPName, _, TBSCert, IDP) ->
dp_names(asn1_NOVALUE, _, _) ->
asn1_NOVALUE;
dp_names({fullName, Name}, _, _) ->
- {fullName, gen_names(Name)};
+ gen_names(Name);
dp_names({nameRelativeToCRLIssuer, Fragment}, asn1_NOVALUE, {rdnSequence, RelativeDestinguistNames}) ->
- {nameRelativeToCRLIssuer, [{directoryName, {rdnSequence, RelativeDestinguistNames ++
- lists:map(fun(AttrAndValue) ->
- pubkey_cert_records:transform(AttrAndValue, decode)
- end, Fragment)}}]};
+ [{directoryName, {rdnSequence, RelativeDestinguistNames ++
+ [lists:map(fun(AttrAndValue) ->
+ pubkey_cert_records:transform(AttrAndValue, decode)
+ end, Fragment)]}}];
dp_names({nameRelativeToCRLIssuer, Fragment},{rdnSequence, RelativeDestinguistNames}, _) ->
- {nameRelativeToCRLIssuer, [{directoryName, {rdnSequence, RelativeDestinguistNames ++
- lists:map(fun(AttrAndValue) ->
- pubkey_cert_records:transform(AttrAndValue, decode)
- end, Fragment)}}]};
+ [{directoryName, {rdnSequence, RelativeDestinguistNames ++
+ [lists:map(fun(AttrAndValue) ->
+ pubkey_cert_records:transform(AttrAndValue, decode)
+ end, Fragment)]}}];
dp_names([{rdnSequence, _}] = Name0, _,_) ->
[Name] = pubkey_cert_records:transform(Name0, decode),
- {fullName, [{directoryName, Name}]}.
+ [{directoryName, Name}].
gen_names(asn1_NOVALUE) ->
asn1_NOVALUE;
gen_names([]) ->
[];
gen_names([{NameType, Name} | Rest]) ->
- [{NameType, pubkey_cert_records:transform(Name, decode)} | gen_names(Rest)].
+ [ {NameType, pubkey_cert_records:transform(Name, decode)} | gen_names(Rest)].
verify_dp_name(asn1_NOVALUE, _) ->
ok;
-verify_dp_name({Type, IDPNames}, {Type, DPorIssuerNames}) ->
- case match_one(IDPNames, DPorIssuerNames) of
+
+verify_dp_name(IDPNames, DPorIssuerNames) ->
+ case match_one(DPorIssuerNames, IDPNames) of
true ->
ok;
false ->
throw({bad_crl, scope_error})
- end;
-verify_dp_name(_,_) ->
- throw({bad_crl, scope_error}).
+ end.
match_one([], _) ->
false;
-match_one([{Type, Name} | RestIDP], DPorIssuerNames) ->
- Candidates = [NameName || {NameType, NameName} <- DPorIssuerNames, NameType == Type],
+match_one([{Type, Name} | Names], CandidateNames) ->
+ Candidates = [NameName || {NameType, NameName} <- CandidateNames, NameType == Type],
case Candidates of
[] ->
false;
@@ -395,7 +405,7 @@ match_one([{Type, Name} | RestIDP], DPorIssuerNames) ->
true ->
true;
false ->
- match_one(RestIDP, DPorIssuerNames)
+ match_one(Names, CandidateNames)
end
end.