Function for generating OpenSSL-style name hashes

OpenSSL has functions to generate short (eight hex digits) hashes of
issuers of certificates and CRLs.  These hashes are used by the
"c_rehash" script to populate directories of CA certificates and CRLs,
e.g. in the Apache web server.  Adding this function lets an Erlang
program find the right CRL for a given certificate in such a
directory.

1 files changed, 38 insertions, 1 deletions

diff --git a/lib/public_key/test/public_key_SUITE.erl b/lib/public_key/test/public_key_SUITE.erl
index 2fbccbfaa7..2462c17f80 100644
--- a/lib/public_key/test/public_key_SUITE.erl
+++ b/lib/public_key/test/public_key_SUITE.erl
@@ -43,7 +43,8 @@ all() ->
      encrypt_decrypt,
      {group, sign_verify},
      pkix, pkix_countryname, pkix_emailaddress, pkix_path_validation,
-     pkix_iso_rsa_oid, pkix_iso_dsa_oid, pkix_crl].
+     pkix_iso_rsa_oid, pkix_iso_dsa_oid, pkix_crl,
+     short_cert_issuer_hash, short_crl_issuer_hash].
 
 groups() -> 
     [{pem_decode_encode, [], [dsa_pem, rsa_pem, ec_pem, encrypted_pem,
@@ -805,6 +806,42 @@ pkix_crl(Config) when is_list(Config) ->
 			 distributionPoint =  Point} = public_key:pkix_dist_point(OTPIDPCert).
 
 %%--------------------------------------------------------------------
+short_cert_issuer_hash() ->
+    [{doc, "Test OpenSSL-style hash for certificate issuer"}].
+
+short_cert_issuer_hash(Config) when is_list(Config) ->
+    Datadir = ?config(data_dir, Config),
+    [{'Certificate', CertDER, _}] =
+	erl_make_certs:pem_to_der(filename:join(Datadir, "client_cert.pem")),
+
+    %% This hash value was obtained by running:
+    %% openssl x509 -in client_cert.pem -issuer_hash -noout
+    CertIssuerHash = "d4c8d7e5",
+
+    #'OTPCertificate'{tbsCertificate = #'OTPTBSCertificate'{issuer = Issuer}} =
+	public_key:pkix_decode_cert(CertDER, otp),
+
+    CertIssuerHash = public_key:short_name_hash(Issuer).
+
+%%--------------------------------------------------------------------
+short_crl_issuer_hash() ->
+    [{doc, "Test OpenSSL-style hash for CRL issuer"}].
+
+short_crl_issuer_hash(Config) when is_list(Config) ->
+    Datadir = ?config(data_dir, Config),
+    [{'CertificateList', CrlDER, _}] =
+	erl_make_certs:pem_to_der(filename:join(Datadir, "idp_crl.pem")),
+
+    %% This hash value was obtained by running:
+    %% openssl crl -in idp_crl.pem -hash -noout
+    CrlIssuerHash = "d6134ed3",
+
+    Issuer = public_key:pkix_crl_issuer(CrlDER),
+
+    CrlIssuerHash = public_key:short_name_hash(Issuer).
+
+
+%%--------------------------------------------------------------------
 %% Internal functions ------------------------------------------------
 %%--------------------------------------------------------------------
 asn1_encode_decode({Asn1Type, Der, not_encrypted} = Entry) ->