1Uses byKey to identify the signer 2 3$ openssl ocsp -resp_text -respin <([OCSP RESPONSE]) 4OCSP Response Data: 5 OCSP Response Status: successful (0x0) 6 Response Type: Basic OCSP Response 7 Version: 1 (0x0) 8 Responder Id: 7F765910653BB5704124C41E94AEFCF940431A66 9 Produced At: Mar 2 00:00:00 2017 GMT 10 Responses: 11 Certificate ID: 12 Hash Algorithm: sha1 13 Issuer Name Hash: 449B1C5B31C6E9990966523E49C3F773C024190A 14 Issuer Key Hash: 7F765910653BB5704124C41E94AEFCF940431A66 15 Serial Number: 04 16 Cert Status: good 17 This Update: Mar 1 00:00:00 2017 GMT 18 19 Signature Algorithm: sha1WithRSAEncryption 20 80:88:aa:9f:d7:41:82:86:1e:76:7b:2d:69:ae:cc:1f:05:56: 21 a6:ef:06:9f:80:85:4b:c5:22:42:52:99:8b:3c:bc:df:37:b2: 22 55:10:31:a1:b3:ab:5e:7d:4c:30:ec:fa:80:f8:94:3b:27:2b: 23 21:8b:66:db:a2:62:01:d6:f1:e7:b3:af:02:46:f5:ab:f0:f1: 24 33:02:7f:68:47:a3:3f:73:09:a7:3f:9f:51:2c:56:99:6c:1d: 25 08:b2:b9:f3:3a:40:2c:1a:a9:e9:a8:63:05:e8:93:ee:b3:2c: 26 74:c4:9e:c7:e0:72:8e:40:e5:4c:ce:ec:26:3f:8c:1d:94:98: 27 1b:1f 28-----BEGIN OCSP RESPONSE----- 29MIIBKwoBAKCCASQwggEgBgkrBgEFBQcwAQEEggERMIIBDTB6ohYEFH92WRBlO7VwQSTEHpSu/Pl 30AQxpmGA8yMDE3MDMwMjAwMDAwMFowTzBNMDgwBwYFKw4DAhoEFESbHFsxxumZCWZSPknD93PAJB 31kKBBR/dlkQZTu1cEEkxB6Urvz5QEMaZgIBBIAAGA8yMDE3MDMwMTAwMDAwMFowCwYJKoZIhvcNA 32QEFA4GBAICIqp/XQYKGHnZ7LWmuzB8FVqbvBp+AhUvFIkJSmYs8vN83slUQMaGzq159TDDs+oD4 33lDsnKyGLZtuiYgHW8eezrwJG9avw8TMCf2hHoz9zCac/n1EsVplsHQiyufM6QCwaqemoYwXok+6 34zLHTEnsfgco5A5UzO7CY/jB2UmBsf 35-----END OCSP RESPONSE----- 36 37$ openssl x509 -text < [CA CERTIFICATE] 38Certificate: 39 Data: 40 Version: 3 (0x2) 41 Serial Number: 1 (0x1) 42 Signature Algorithm: sha1WithRSAEncryption 43 Issuer: CN = Test CA 44 Validity 45 Not Before: Jan 1 00:00:00 2017 GMT 46 Not After : Jan 1 00:00:00 2018 GMT 47 Subject: CN = Test Intermediate CA 48 Subject Public Key Info: 49 Public Key Algorithm: rsaEncryption 50 RSA Public-Key: (1024 bit) 51 Modulus: 52 00:c5:fb:81:a7:1b:6a:61:38:1c:6a:de:dd:db:22: 53 61:64:7a:22:a3:3b:1d:e5:92:54:17:ad:39:2e:fe: 54 81:ff:46:0a:70:d6:84:a5:d5:bd:05:d3:f2:a5:98: 55 90:fd:e4:ff:d8:d2:cf:7c:d1:f2:78:0d:4a:a1:80: 56 c8:6a:70:75:84:04:c1:c2:4b:af:17:9b:a2:29:2b: 57 a7:be:f1:f9:19:80:f3:6a:d4:10:28:51:38:26:97: 58 ed:ad:06:96:85:a7:b7:7c:78:38:90:44:df:d7:10: 59 e4:52:a2:49:22:6c:98:71:51:f5:b2:13:6a:7f:08: 60 34:7c:d0:c6:99:6f:79:98:f9 61 Exponent: 65537 (0x10001) 62 Signature Algorithm: sha1WithRSAEncryption 63 7d:67:0f:39:4e:7c:e3:ba:f2:63:b9:ed:6e:ec:61:f2:8a:4f: 64 1e:82:e2:4b:44:04:f8:a5:a1:5a:bc:8c:72:91:6d:bf:03:27: 65 21:10:9e:5c:8a:cf:4b:87:83:e0:c2:d7:72:55:d5:42:d3:d1: 66 2b:76:b3:42:84:e0:e8:3b:80:b2:5f:55:e7:e0:f6:b6:21:c6: 67 fd:91:b5:c9:ba:fa:d8:ba:5c:8b:e1:f6:de:5d:cf:39:e6:92: 68 22:85:31:1f:c3:ed:19:db:0a:0b:f9:ef:a7:36:4d:e1:54:af: 69 8e:c0:59:25:43:e5:69:47:c4:e0:00:1e:21:eb:e6:b4:13:8f: 70 30:01 71-----BEGIN CA CERTIFICATE----- 72MIIBqTCCARKgAwIBAgIBATANBgkqhkiG9w0BAQUFADASMRAwDgYDVQQDDAdUZXN0IENBMCIYDzI 73wMTcwMTAxMDAwMDAwWhgPMjAxODAxMDEwMDAwMDBaMB8xHTAbBgNVBAMMFFRlc3QgSW50ZXJtZW 74RpYXRlIENBMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDF+4GnG2phOBxq3t3bImFkeiKjO 75x3lklQXrTku/oH/Rgpw1oSl1b0F0/KlmJD95P/Y0s980fJ4DUqhgMhqcHWEBMHCS68Xm6IpK6e+ 768fkZgPNq1BAoUTgml+2tBpaFp7d8eDiQRN/XEORSokkibJhxUfWyE2p/CDR80MaZb3mY+QIDAQA 77BMA0GCSqGSIb3DQEBBQUAA4GBAH1nDzlOfOO68mO57W7sYfKKTx6C4ktEBPiloVq8jHKRbb8DJy 78EQnlyKz0uHg+DC13JV1ULT0St2s0KE4Og7gLJfVefg9rYhxv2Rtcm6+ti6XIvh9t5dzznmkiKFM 79R/D7RnbCgv576c2TeFUr47AWSVD5WlHxOAAHiHr5rQTjzAB 80-----END CA CERTIFICATE----- 81 82$ openssl x509 -text < [CERTIFICATE] 83Certificate: 84 Data: 85 Version: 3 (0x2) 86 Serial Number: 4 (0x4) 87 Signature Algorithm: sha1WithRSAEncryption 88 Issuer: CN = Test Intermediate CA 89 Validity 90 Not Before: Jan 1 00:00:00 2017 GMT 91 Not After : Jan 1 00:00:00 2018 GMT 92 Subject: CN = Test Cert 93 Subject Public Key Info: 94 Public Key Algorithm: rsaEncryption 95 RSA Public-Key: (1024 bit) 96 Modulus: 97 00:d1:d2:a7:fd:5f:56:b8:4a:4a:00:c4:f0:36:48: 98 0d:99:1e:ba:ca:8d:8c:0e:e9:5a:f4:31:94:26:f4: 99 24:77:0c:2d:76:39:fe:1e:51:9c:b1:3a:b2:61:ae: 100 f6:2b:41:46:92:81:b4:1e:35:73:bb:df:53:d6:63: 101 a4:07:58:e9:0a:40:7a:b7:71:a3:fd:7d:6a:3f:23: 102 ee:5e:76:90:3f:60:ea:85:6b:74:1b:1f:6a:40:27: 103 37:7f:ac:6e:97:ee:13:f7:cb:81:44:26:f3:25:48: 104 56:40:ef:33:84:c8:d7:52:66:8a:40:35:ed:ec:67: 105 95:c1:35:46:9e:db:9b:ce:9b 106 Exponent: 65537 (0x10001) 107 Signature Algorithm: sha1WithRSAEncryption 108 8e:94:5a:91:44:aa:ab:e4:bf:c4:ca:a3:ee:10:67:2d:3e:d5: 109 ac:b8:90:8b:4e:7f:3e:bc:83:bb:b2:c9:0c:a2:ae:fb:6c:b3: 110 5d:b7:40:20:9f:9b:7c:3d:5f:67:bc:0e:f9:20:bc:24:67:27: 111 a9:2e:81:08:e5:3f:ad:e9:b7:eb:a9:c5:58:55:55:f3:26:17: 112 26:46:5f:ef:20:38:c9:f2:81:ba:39:d9:28:4b:e8:83:ff:d7: 113 2e:87:72:36:77:0f:46:9b:a1:fe:d8:d8:20:50:68:c1:7b:66: 114 82:5d:62:94:90:98:71:8b:b9:83:69:a8:65:a4:58:5d:ce:90: 115 0a:53 116-----BEGIN CERTIFICATE----- 117MIIBqzCCARSgAwIBAgIBBDANBgkqhkiG9w0BAQUFADAfMR0wGwYDVQQDDBRUZXN0IEludGVybWV 118kaWF0ZSBDQTAiGA8yMDE3MDEwMTAwMDAwMFoYDzIwMTgwMTAxMDAwMDAwWjAUMRIwEAYDVQQDDA 119lUZXN0IENlcnQwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBANHSp/1fVrhKSgDE8DZIDZkeu 120sqNjA7pWvQxlCb0JHcMLXY5/h5RnLE6smGu9itBRpKBtB41c7vfU9ZjpAdY6QpAerdxo/19aj8j 1217l52kD9g6oVrdBsfakAnN3+sbpfuE/fLgUQm8yVIVkDvM4TI11JmikA17exnlcE1Rp7bm86bAgM 122BAAEwDQYJKoZIhvcNAQEFBQADgYEAjpRakUSqq+S/xMqj7hBnLT7VrLiQi05/PryDu7LJDKKu+2 123yzXbdAIJ+bfD1fZ7wO+SC8JGcnqS6BCOU/rem366nFWFVV8yYXJkZf7yA4yfKBujnZKEvog//XL 124odyNncPRpuh/tjYIFBowXtmgl1ilJCYcYu5g2moZaRYXc6QClM= 125-----END CERTIFICATE----- 126 127$ openssl asn1parse -i < [OCSP REQUEST] 128 0:d=0 hl=2 l= 66 cons: SEQUENCE 129 2:d=1 hl=2 l= 64 cons: SEQUENCE 130 4:d=2 hl=2 l= 62 cons: SEQUENCE 131 6:d=3 hl=2 l= 60 cons: SEQUENCE 132 8:d=4 hl=2 l= 58 cons: SEQUENCE 133 10:d=5 hl=2 l= 9 cons: SEQUENCE 134 12:d=6 hl=2 l= 5 prim: OBJECT :sha1 135 19:d=6 hl=2 l= 0 prim: NULL 136 21:d=5 hl=2 l= 20 prim: OCTET STRING [HEX DUMP]:449B1C5B31C6E9990966523E49C3F773C024190A 137 43:d=5 hl=2 l= 20 prim: OCTET STRING [HEX DUMP]:7F765910653BB5704124C41E94AEFCF940431A66 138 65:d=5 hl=2 l= 1 prim: INTEGER :04 139-----BEGIN OCSP REQUEST----- 140MEIwQDA+MDwwOjAJBgUrDgMCGgUABBREmxxbMcbpmQlmUj5Jw/dzwCQZCgQUf3ZZEGU7tXBBJMQ 141elK78+UBDGmYCAQQ= 142-----END OCSP REQUEST----- 143