Allow decoding ASN.1 OID 0.0

I had no idea this was a valid OID but apparently it is. And for
some who-knows-why reason FreeTSA certificate includes it in their
certificate policy extension.

GH #355

4 files changed, 191 insertions, 1 deletions

diff --git a/src/tests/data/asn1_print/input6.der b/src/tests/data/asn1_print/input6.der
new file mode 100644
index 000000000..ab6cac565
--- /dev/null
+++ b/src/tests/data/asn1_print/input6.der
diff --git a/src/tests/data/asn1_print/input6.pem b/src/tests/data/asn1_print/input6.pem
new file mode 100644
index 000000000..467926276
--- /dev/null
+++ b/src/tests/data/asn1_print/input6.pem
@@ -0,0 +1,45 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/src/tests/data/asn1_print/output6.txt b/src/tests/data/asn1_print/output6.txt
new file mode 100644
index 000000000..d9c326af1
--- /dev/null
+++ b/src/tests/data/asn1_print/output6.txt
@@ -0,0 +1,145 @@
+  d= 0, l=2049: SEQUENCE
+  d= 1, l=1513:  SEQUENCE
+  d= 2, l=   3:   cons [0] context
+  d= 3, l=   1:    INTEGER                                  02
+  d= 2, l=   9:   INTEGER                                   C1E986160DA8E982
+  d= 2, l=  13:   SEQUENCE
+  d= 3, l=   9:    OBJECT                                   RSA/EMSA3(SHA-512) [1.2.840.113549.1.1.13]
+  d= 3, l=   0:    NULL
+  d= 2, l= 149:   SEQUENCE
+  d= 3, l=  17:    SET
+  d= 4, l=  15:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X520.Organization [2.5.4.10]
+  d= 5, l=   8:      PRINTABLE STRING                       Free TSA
+  d= 3, l=  16:    SET
+  d= 4, l=  14:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X520.OrganizationalUnit [2.5.4.11]
+  d= 5, l=   7:      PRINTABLE STRING                       Root CA
+  d= 3, l=  24:    SET
+  d= 4, l=  22:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X520.CommonName [2.5.4.3]
+  d= 5, l=  15:      PRINTABLE STRING                       www.freetsa.org
+  d= 3, l=  34:    SET
+  d= 4, l=  32:     SEQUENCE
+  d= 5, l=   9:      OBJECT                                 PKCS9.EmailAddress [1.2.840.113549.1.9.1]
+  d= 5, l=  19:      IA5 STRING                             [email protected]
+  d= 3, l=  18:    SET
+  d= 4, l=  16:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X520.Locality [2.5.4.7]
+  d= 5, l=   9:      PRINTABLE STRING                       Wuerzburg
+  d= 3, l=  15:    SET
+  d= 4, l=  13:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X520.State [2.5.4.8]
+  d= 5, l=   6:      PRINTABLE STRING                       Bayern
+  d= 3, l=  11:    SET
+  d= 4, l=   9:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X520.Country [2.5.4.6]
+  d= 5, l=   2:      PRINTABLE STRING                       DE
+  d= 2, l=  30:   SEQUENCE
+  d= 3, l=  13:    UTC TIME                                 2016/03/13 01:57:39 UTC
+  d= 3, l=  13:    UTC TIME                                 2026/03/11 01:57:39 UTC
+  d= 2, l= 265:   SEQUENCE
+  d= 3, l=  17:    SET
+  d= 4, l=  15:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X520.Organization [2.5.4.10]
+  d= 5, l=   8:      PRINTABLE STRING                       Free TSA
+  d= 3, l=  12:    SET
+  d= 4, l=  10:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X520.OrganizationalUnit [2.5.4.11]
+  d= 5, l=   3:      PRINTABLE STRING                       TSA
+  d= 3, l= 118:    SET
+  d= 4, l= 116:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 2.5.4.13
+  d= 5, l= 109:      PRINTABLE STRING                       This certificate digitally signs documents and time stamp requests made using the freetsa.org online services
+  d= 3, l=  24:    SET
+  d= 4, l=  22:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X520.CommonName [2.5.4.3]
+  d= 5, l=  15:      PRINTABLE STRING                       www.freetsa.org
+  d= 3, l=  34:    SET
+  d= 4, l=  32:     SEQUENCE
+  d= 5, l=   9:      OBJECT                                 PKCS9.EmailAddress [1.2.840.113549.1.9.1]
+  d= 5, l=  19:      IA5 STRING                             [email protected]
+  d= 3, l=  18:    SET
+  d= 4, l=  16:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X520.Locality [2.5.4.7]
+  d= 5, l=   9:      PRINTABLE STRING                       Wuerzburg
+  d= 3, l=  11:    SET
+  d= 4, l=   9:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X520.Country [2.5.4.6]
+  d= 5, l=   2:      PRINTABLE STRING                       DE
+  d= 3, l=  15:    SET
+  d= 4, l=  13:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X520.State [2.5.4.8]
+  d= 5, l=   6:      PRINTABLE STRING                       Bayern
+  d= 2, l= 546:   SEQUENCE
+  d= 3, l=  13:    SEQUENCE
+  d= 4, l=   9:     OBJECT                                  RSA [1.2.840.113549.1.1.1]
+  d= 4, l=   0:     NULL
+  d= 3, l= 527:    BIT STRING
+  d= 4, l= 522:     SEQUENCE
+  d= 5, l= 513:      INTEGER                                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
+  d= 5, l=   3:      INTEGER                                010001
+  d= 2, l= 475:   cons [3] context
+  d= 3, l= 471:    SEQUENCE
+  d= 4, l=   9:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X509v3.BasicConstraints [2.5.29.19]
+  d= 5, l=   2:      OCTET STRING
+  d= 6, l=   0:       SEQUENCE
+  d= 4, l=  29:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X509v3.SubjectKeyIdentifier [2.5.29.14]
+  d= 5, l=  22:      OCTET STRING
+  d= 6, l=  20:       OCTET STRING                          6E760B7B4E4F9CE160CA6D2CE927A2A294B37737
+  d= 4, l=  31:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X509v3.AuthorityKeyIdentifier [2.5.29.35]
+  d= 5, l=  24:      OCTET STRING
+  d= 6, l=  22:       SEQUENCE
+  d= 7, l=  20:        [0] context                          8014FA550D8C346651434CF7E7B3A76C95AF7AE6A497
+  d= 4, l=  11:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X509v3.KeyUsage [2.5.29.15]
+  d= 5, l=   4:      OCTET STRING
+  d= 6, l=   2:       BIT STRING                            C0
+  d= 4, l=  22:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X509v3.ExtendedKeyUsage [2.5.29.37]
+  d= 5, l=   1:      BOOLEAN                                true
+  d= 5, l=  12:      OCTET STRING
+  d= 6, l=  10:       SEQUENCE
+  d= 7, l=   8:        OBJECT                               PKIX.TimeStamping [1.3.6.1.5.5.7.3.8]
+  d= 4, l=  99:     SEQUENCE
+  d= 5, l=   8:      OBJECT                                 PKIX.AuthorityInformationAccess [1.3.6.1.5.5.7.1.1]
+  d= 5, l=  87:      OCTET STRING
+  d= 6, l=  85:       SEQUENCE
+  d= 7, l=  42:        SEQUENCE
+  d= 8, l=   8:         OBJECT                              PKIX.CertificateAuthorityIssuers [1.3.6.1.5.5.7.48.2]
+  d= 8, l=  30:         [6] context                         861E687474703A2F2F7777772E667265657473612E6F72672F7473612E637274
+  d= 7, l=  39:        SEQUENCE
+  d= 8, l=   8:         OBJECT                              PKIX.OCSP [1.3.6.1.5.5.7.48.1]
+  d= 8, l=  27:         [6] context                         861B687474703A2F2F7777772E667265657473612E6F72673A32353630
+  d= 4, l=  55:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X509v3.CRLDistributionPoints [2.5.29.31]
+  d= 5, l=  48:      OCTET STRING
+  d= 6, l=  46:       SEQUENCE
+  d= 7, l=  44:        SEQUENCE
+  d= 8, l=  42:         cons [0] context
+  d= 9, l=  40:          cons [0] context
+  d=10, l=  38:           [6] context                       8626687474703A2F2F7777772E667265657473612E6F72672F63726C2F726F6F745F63612E63726C
+  d= 4, l= 198:     SEQUENCE
+  d= 5, l=   3:      OBJECT                                 X509v3.CertificatePolicies [2.5.29.32]
+  d= 5, l= 190:      OCTET STRING
+  d= 6, l= 187:       SEQUENCE
+  d= 7, l= 184:        SEQUENCE
+  d= 8, l=   1:         OBJECT                              0.0
+  d= 8, l= 178:         SEQUENCE
+  d= 9, l=  51:          SEQUENCE
+  d=10, l=   8:           OBJECT                            1.3.6.1.5.5.7.2.1
+  d=10, l=  39:           IA5 STRING                        http://www.freetsa.org/freetsa_cps.html
+  d= 9, l=  50:          SEQUENCE
+  d=10, l=   8:           OBJECT                            1.3.6.1.5.5.7.2.1
+  d=10, l=  38:           IA5 STRING                        http://www.freetsa.org/freetsa_cps.pdf
+  d= 9, l=  71:          SEQUENCE
+  d=10, l=   8:           OBJECT                            1.3.6.1.5.5.7.2.2
+  d=10, l=  59:           SEQUENCE
+  d=11, l=  57:            VISIBLE STRING                   FreeTSA trusted timestamping Software as a Service (SaaS)
+  d= 1, l=  13:  SEQUENCE
+  d= 2, l=   9:   OBJECT                                    RSA/EMSA3(SHA-512) [1.2.840.113549.1.1.13]
+  d= 2, l=   0:   NULL
+  d= 1, l= 513:  BIT STRING                                 A5C944E2C6FAC0A14D930A7FD0A0B172B41FC1483C3E957C68A2BCD9B9764F1A950161FD72472D41A5EED277786203B5422240FB3A26CDE176087B6FB1011DF4CC19E2571AA4A051109665E94C46F50BD2ADEE6AC4137E251B25A39DABDA451515D8FF9E07209E8EC20B7874F7E1A0EDE7C00937FE84A334F8B3265CED2D8ED9DF61396583677FEB382C1EE3B23E6EA5F05DF30DE7B9F89005D25266F612F39C8B4F6DABA6D7BFBAC19632B90637329F52A6F066A10E43EAA81F849A6C5FE3FE8B5EA23275F687F2052E502EA6C30762A668CCE07871DD8E97E315BBA929E25589977A0A312CE96C5106B1437C779F2B361B182888F3EE8A234374FA063E956192627F7C431073965D1260928EBA009E803429AE324CF96F042354F37BCA5AFDDC79F79346AB388BFC79F01DC9861254EA6CC129941076B83D20556F3BE51326837F2876F7833B370E7C3D410523827D4F53400C72218D75229FF10C6F8893A9A3A1C0C42BB4C898C13DF41C7F6573B4FC56515971A610A7B0D2857C8225A9FB204EACECA2E8971AA1AF87886A2AE3C72FE0A0AAE842980A77BEF16B92115458090D982B5946603764E75A0AD3D11454B9986F678B9AB6AFE8497033AE3ABFD4EB43B7BC9DEE68815949E6481582A82E785277F2282107EFE390200E0508ACB8EA82EA2505276F3C9DA2A3D3B4AD38BBF8842BDA36FC2448291F558DC02DD1E0
diff --git a/src/tests/test_asn1.cpp b/src/tests/test_asn1.cpp
index 857754745..ae9c1dafb 100644
--- a/src/tests/test_asn1.cpp
+++ b/src/tests/test_asn1.cpp
@@ -300,7 +300,7 @@ class ASN1_Printer_Tests final : public Test
 
          Botan::ASN1_Pretty_Printer printer;
 
-         const size_t num_tests = 5;
+         const size_t num_tests = 6;
 
          for(size_t i = 1; i <= num_tests; ++i)
             {