Reference no: EM131020949
Consider the details of the X.509 certificate shown below.
a. Identify the key elements in this certificate, including the owner''s name and public key, its validity dates, the name of the CA that signed it, and the type and value of signature.
b. State whether this is a CA or end-user certificate, and why.
c. Indicate whether the certificate is valid or not, and why.
d. State whether there are any other obvious problems with the algorithms used in this certificate.
Certificate: Data: Version: 3 (0x2) Serial Number: 3c:50:33:c2:f8:e7:5c:ca:07:c2:4e:83:f2:e8:0e:4f Signature Algorithm: md5WithRSAEncryption Issuer: O=VeriSign, Inc., OU=VeriSign Trust Network, CN=VeriSign Class 1 CA Individual - Persona Not Validated Validity Not Before: Jan 13 00:00:00 2000 GMT Not After : Mar 13 23:59:59 2000 GMT Subject: O=VeriSign, Inc., OU=VeriSign Trust Network, OU=Persona Not Validated, OU=Digital ID Class 1 - Netscape CN=John Doe/Email= Subject Public Key Info: Public Key Algorithm: rsaEncryption RSA Public Key: (512 bit) Modulus (512 bit): 00:98:f2:89:c4:48:e1:3b:2c:c5:d1:48:67:80:53: d8:eb:4d:4f:ac:31:a9:fd:11:68:94:ba:44:d8:48: 46:0d:fc:5c:6d:89:47:3f:9f:d0:c0:6d:3e:9a:8e: ec:82:21:48:9b:b9:78:cf:aa:09:61:92:f6:d1:cf: 45:ca:ea:8f:df Exponent: 65537 (0x10001) X509v3 extensions: X509v3 Basic Constraints: CA:FALSE X509v3 Certificate Policies: Policy: 2.16.840.1.113733.1.7.1.1 CPS: https://www.verisign.com/CPS X509v3 CRL Distribution Points: URI:https://crl.verisign.com/class1.crl Signature Algorithm: md5WithRSAEncryption 5a:71:77:c2:ce:82:26:02:45:41:a5:11:68:d6:99:f0:4c:ce: 7a:ce:80:44:f4:a3:1a:72:43:e9:dc:e1:1a:9b:ec:64:f7:ff: 21:f2:29:89:d6:61:e5:39:bd:04:e7:e5:3d:7b:14:46:d6:eb: 8e:37:b0:cb:ed:38:35:81:1f:40:57:57:58:a5:c0:64:ef:55: 59:c0:79:75:7a:54:47:6a:37:b2:6c:23:6b:57:4d:62:2f:94: d3:aa:69:9d:3d:64:43:61:a7:a3:e0:b8:09:ac:94:9b:23:38: e8:1b:0f:e5:1b:6e:e2:fa:32:86:f0:c4:0b:ed:89:d9:16:e4: a7:77
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