File 0222-Added-tests-and-additional-fix-for-public_... of Package erlang

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File 0222-Added-tests-and-additional-fix-for-public_key-pkix_v.patch of Package erlang (Revision 67b0d44b81f58108cfbcc1786210bcda)

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From a834684bc882a18bc513944aceb61066fce3eab9 Mon Sep 17 00:00:00 2001
From: Sergey Stolyarov <sergei@regolit.com>
Date: Thu, 22 Jul 2021 11:43:22 +0700
Subject: [PATCH 2/3] Added tests and additional fix for public_key:pkix_verify

---
 lib/public_key/src/public_key.erl        |  5 +++--
 lib/public_key/test/erl_make_certs.erl   | 19 ++++++++++++++++++-
 lib/public_key/test/public_key_SUITE.erl | 22 ++++++++++++++++++++--
 3 files changed, 41 insertions(+), 5 deletions(-)

diff --git a/lib/public_key/src/public_key.erl b/lib/public_key/src/public_key.erl
index 23883b6a39..e88c33c0db 100644
--- a/lib/public_key/src/public_key.erl
+++ b/lib/public_key/src/public_key.erl
@@ -1521,13 +1521,14 @@ format_verify_key(#'DSAPrivateKey'{y=Y, p=P, q=Q, g=G}) ->
 format_verify_key(_) ->
     badarg.
 
-rsa_opts(#'RSASSA-PSS-params'{maskGenAlgorithm = 
+rsa_opts(#'RSASSA-PSS-params'{saltLength = SaltLen, 
+                              maskGenAlgorithm = 
                                   #'MaskGenAlgorithm'{algorithm = ?'id-mgf1',
                                                       parameters = #'HashAlgorithm'{algorithm = HashAlgoOid}
                                                      }}) ->
     HashAlgo = pkix_hash_type(HashAlgoOid),
     [{rsa_padding, rsa_pkcs1_pss_padding},
-     {rsa_pss_saltlen, -1},
+     {rsa_pss_saltlen, SaltLen},
      {rsa_mgf1_md, HashAlgo}].
 
 do_pem_entry_encode(Asn1Type, Entity, CipherInfo, Password) ->
diff --git a/lib/public_key/test/erl_make_certs.erl b/lib/public_key/test/erl_make_certs.erl
index 4c0b60d543..040893cf95 100644
--- a/lib/public_key/test/erl_make_certs.erl
+++ b/lib/public_key/test/erl_make_certs.erl
@@ -111,6 +111,9 @@ gen_ec(Curve) when is_atom(Curve) ->
 verify_signature(DerEncodedCert, DerKey, _KeyParams) ->
     Key = decode_key(DerKey),
     case Key of 
+	{#'RSAPrivateKey'{modulus=Mod, publicExponent=Exp}, #'RSASSA-PSS-params'{}=P} ->
+	    public_key:pkix_verify(DerEncodedCert, 
+				   {#'RSAPublicKey'{modulus=Mod, publicExponent=Exp}, P});
 	#'RSAPrivateKey'{modulus=Mod, publicExponent=Exp} ->
 	    public_key:pkix_verify(DerEncodedCert, 
 				   #'RSAPublicKey'{modulus=Mod, publicExponent=Exp});
@@ -134,6 +137,8 @@ get_key(Opts) ->
 	    decode_key(Key, Password)
     end.
 
+decode_key({#'RSAPrivateKey'{},#'RSASSA-PSS-params'{}}=Key) ->
+	Key;
 decode_key({Key, Pw}) ->
     decode_key(Key, Pw);
 decode_key(Key) ->
@@ -144,6 +149,8 @@ decode_key(#'RSAPublicKey'{} = Key,_) ->
     Key;
 decode_key(#'RSAPrivateKey'{} = Key,_) ->
     Key;
+decode_key({#'RSAPrivateKey'{},#'RSASSA-PSS-params'{}} = Key,_) ->
+    Key;
 decode_key(#'DSAPrivateKey'{} = Key,_) ->
     Key;
 decode_key(#'ECPrivateKey'{} = Key,_) ->
@@ -157,6 +164,9 @@ decode_key(PemBin, Pw) ->
 encode_key(Key = #'RSAPrivateKey'{}) ->
     {ok, Der} = 'OTP-PUB-KEY':encode('RSAPrivateKey', Key),
     {'RSAPrivateKey', Der, not_encrypted};
+encode_key(Key = {#'RSAPrivateKey'{},#'RSASSA-PSS-params'{}}) ->
+    Der = public_key:der_encode('PrivateKeyInfo', Key),
+    {'PrivateKeyInfo', Der, not_encrypted};
 encode_key(Key = #'DSAPrivateKey'{}) ->
     {ok, Der} = 'OTP-PUB-KEY':encode('DSAPrivateKey', Key),
     {'DSAPrivateKey', Der, not_encrypted};
@@ -171,7 +181,7 @@ make_tbs(SubjectKey, Opts) ->
     {Issuer, IssuerKey}  = issuer(IssuerProp, Opts, SubjectKey),
 
     {Algo, Parameters} = sign_algorithm(IssuerKey, Opts),
-    
+
     SignAlgo = #'SignatureAlgorithm'{algorithm  = Algo,
 				     parameters = Parameters},    
     Subject = case IssuerProp of
@@ -295,6 +305,11 @@ publickey(#'RSAPrivateKey'{modulus=N, publicExponent=E}) ->
     Algo = #'PublicKeyAlgorithm'{algorithm= ?rsaEncryption, parameters='NULL'},
     #'OTPSubjectPublicKeyInfo'{algorithm = Algo,
 			       subjectPublicKey = Public};
+publickey({#'RSAPrivateKey'{modulus=N, publicExponent=E},#'RSASSA-PSS-params'{}=P}) ->
+    Public = #'RSAPublicKey'{modulus=N, publicExponent=E},
+    Algo = #'PublicKeyAlgorithm'{algorithm= ?'id-RSASSA-PSS', parameters=P},
+    #'OTPSubjectPublicKeyInfo'{algorithm = Algo,
+			       subjectPublicKey = Public};
 publickey(#'DSAPrivateKey'{p=P, q=Q, g=G, y=Y}) ->
     Algo = #'PublicKeyAlgorithm'{algorithm= ?'id-dsa', 
 				 parameters={params, #'Dss-Parms'{p=P, q=Q, g=G}}},
@@ -325,6 +340,8 @@ sign_algorithm(#'RSAPrivateKey'{}, Opts) ->
 	       md2    -> ?'md2WithRSAEncryption'
 	   end,
     {Type, 'NULL'};
+sign_algorithm({#'RSAPrivateKey'{},#'RSASSA-PSS-params'{}=P}, Opts) ->
+    {?'id-RSASSA-PSS', P};
 sign_algorithm(#'DSAPrivateKey'{p=P, q=Q, g=G}, _Opts) ->
     {?'id-dsa-with-sha1', {params,#'Dss-Parms'{p=P, q=Q, g=G}}};
 sign_algorithm(#'ECPrivateKey'{parameters = Parms}, Opts) ->
diff --git a/lib/public_key/test/public_key_SUITE.erl b/lib/public_key/test/public_key_SUITE.erl
index fda2c1e48c..3ec87b2ef6 100644
--- a/lib/public_key/test/public_key_SUITE.erl
+++ b/lib/public_key/test/public_key_SUITE.erl
@@ -776,7 +776,25 @@ pkix_path_validation(Config) when is_list(Config) ->
 
     {error, custom_reason} =
         public_key:pkix_path_validation(selfsigned_peer, [Trusted], [{verify_fun,
-                                                                      VerifyFunAndState2}]).
+                                                                      VerifyFunAndState2}]),
+    % check RSASSA-PSS key
+    % RsaPssKey = {public_key:generate_key({rsa, 1024, 65537}), pss_params(sha256)},
+    RsaPssKey = {hardcode_rsa_key(1), pss_params(sha256)},
+
+    CaKPSS = {TrustedPSSCert,_} = erl_make_certs:make_cert([{key, RsaPssKey},
+                 {subject, [
+                    {name, "RSASSA-PSS Public Key"},
+                    {?'id-at-name', {printableString, "public_key"}},
+                    {?'id-at-pseudonym', {printableString, "pubkey"}},
+                    {city, "Stockholm"},
+                    {country, "SE"},
+                    {org, "erlang"},
+                    {org_unit, "testing dep"}
+                       ]}
+                ]),
+    ChainPSSCert = {CertPSS, _} = erl_make_certs:make_cert([{issuer, {TrustedPSSCert,RsaPssKey}}]),
+    {ok, _} = public_key:pkix_path_validation(TrustedPSSCert, [CertPSS], []).
+
 pkix_path_validation_root_expired() ->
     [{doc, "Test root expiration so that it does not fall between chairs"}].
 pkix_path_validation_root_expired(Config) when is_list(Config) ->
@@ -1355,6 +1373,6 @@ pss_params(sha256) ->
        maskGenAlgorithm = #'MaskGenAlgorithm'{algorithm = ?'id-mgf1',
                                               parameters = #'HashAlgorithm'{algorithm = ?'id-sha256'}
                                              },
-       saltLength = 32,
+       saltLength = 20,
        trailerField = 1}.
    
-- 
2.26.2

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File 0222-Added-tests-and-additional-fix-for-public_key-pkix_v.patch of Package erlang (Revision 67b0d44b81f58108cfbcc1786210bcda)

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