TABLE IV.
Extensions observed in our corpus
| Name or OID | Occurrences | Unique values |
|---|---|---|
|
| ||
| basicConstraints | 161723 | 13 |
| authorityKeyIdentifier | 161572 | 21990 |
| subjectKeyIdentifier | 151823 | 72496 |
| keyUsage | 132970 | 54 |
| extendedKeyUsage | 131453 | 83 |
| crlDistributionPoints | 126579 | 4851 |
| subjectAltName | 101622 | 59767 |
| authorityInfoAccess | 89005 | 3864 |
| certificatePolicies | 81264 | 418 |
| nsCertType | 63913 | 21 |
| nsComment | 5870 | 185 |
| 1.3.6.1.4.1.311.20.2 | 2897 | 11 |
| issuerAltName | 1519 | 115 |
| 1.3.6.1.5.5.7.1.12 | 1474 | 2 |
| SMIME-CAPS | 915 | 4 |
| 1.3.6.1.4.1.311.21.10 | 875 | 16 |
| 1.3.6.1.4.1.311.21.7 | 873 | 312 |
| privateKeyUsagePeriod | 871 | 798 |
| 2.5.29.1 | 175 | 133 |
| nsRevocationUrl | 112 | 39 |
| nsCaRevocationUrl | 104 | 52 |
| nsCaPolicyUrl | 74 | 32 |
| nsSslServerName | 73 | 17 |
| nsBaseUrl | 63 | 31 |
| 1.2.840.113533.7.65.0 | 59 | 6 |
| 2.16.840.1.113719.1.9.4.1 | 54 | 26 |
| nsRenewalUrl | 33 | 7 |
| 2.5.29.80 | 10 | 10 |
| qcStatements | 8 | 2 |
| 2.5.29.7 | 7 | 7 |
| 2.16.840.1.113733.1.6.15 | 6 | 6 |
| 2.5.29.10 | 5 | 1 |
| 1.3.6.1.4.1.3401.8.1.1 | 4 | 4 |
| freshestCRL | 4 | 3 |
| subjectDirectoryAttributes | 4 | 2 |
| 1.3.6.1.4.1.311.10.11.11 | 3 | 3 |
| 2.5.29.3 | 2 | 1 |
| 2.16.840.1.113733.1.6.7 | 2 | 2 |
| 1.3.6.1.4.4324.33 | 2 | 2 |
| 1.3.6.1.4.4324.36 | 2 | 2 |
| 1.3.6.1.4.4324.34 | 2 | 2 |
| 1.3.6.1.4.4324.35 | 2 | 1 |
| 1.2.40.0.10.1.1.1 | 2 | 2 |
| 1.3.6.1.4.1.311.21.1 | 2 | 1 |
| 1.3.6.1.4.1.7650.1 | 1 | 1 |
| 1.3.6.1.4.1.311.10.11.87 | 1 | 1 |
| 1.3.6.1.4.1.311.10.11.26 | 1 | 1 |
| 1.3.6.1.4.1.8173.2.3.6 | 1 | 1 |
| 1.2.40.0.10.1.1.2 | 1 | 1 |
| 2.5.29.4 | 1 | 1 |
| 1.2.250.1.71.1.2.5 | 1 | 1 |
| 1.3.6.1.4.1.6334.2.2 | 1 | 1 |