cel.agh.edu.pl
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:51:42:ee:5b:c0:2a:f9:ac:40:5a:d7:7c:13:e6:43:71:e4 was issued on by Let's Encrypt.
With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.
We have idenified some issues with this certificate:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=cel.agh.edu.pl
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:51:42:ee:5b:c0:2a:f9:ac:40:5a:d7:7c:13:e6:43:71:e4Serial Number (int): 288988696191175272558408797677692020552164
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 69:a1:6b:1b:b3:6e:ba:a3:e1:6a:b9:33:ac:48:74:01:b7:d8:86:50
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 7c:b4:db:00:12:d2:ad:51:56:fa:8d:92:cb:f4:dd:7a:dc:31:fc:51
Fingerprint (sha256): 0a:1f:b7:d8:ee:e2:e1:34:fb:e9:ec:0c:af:73:cd:a1:45:44:e5:35:b3:82:b6:76:6b:a5:fc:09:13:94:b7:d4
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate cel.agh.edu.pl
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for cel.agh.edu.pl
Public Key Algorithm
RSA
Key Size
2048
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
cel.agh.edu.pl
www.cel.agh.edu.pl
www.cel.agh.edu.pl
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Certificate
The complete raw certificate details for cel.agh.edu.pl in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGGzCCBQOgAwIBAgISA1FC7lvAKvmsQFrXfBPmQ3HkMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xODA0MjkyMTM1MjRaFw0x ODA3MjgyMTM1MjRaMBkxFzAVBgNVBAMTDmNlbC5hZ2guZWR1LnBsMIIBIjANBgkq hkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyMSBaFaK0zbGUh7HMMM4vVl/0n6W0cLN 1cTg27h3U8lzH2SHgiQi3T7GoDyVGbrwtqbSTFtY5Ot74eVZCmUydCWuJJDsOpxi 3PqQGt1uWXkG7b554BQTWNCMZ+03Y6ky+wwB2qXOZ/GJVnD/R0JzPMpZtTroDmzt KNGu13KQAOzJLwXC6ZjkHOMjL6LZHzlpIjrSGennkecNv5lxu6tO58/w8H4/caZi b787YwEDYDg9x37MCgdp2t5U7YfzJrLILb5vLFCdFsjtwhZrXSGkMM2Bu1DxFbAa PjY9mZkTC52TP0f5D4/3EJK8/j0suqBXcl/G16dOnSS+Asub2APVmwIDAQABo4ID KjCCAyYwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEF BQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBRpoWsbs266o+FquTOsSHQBt9iG UDAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEFBQcBAQRj MGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5jcnlwdC5v cmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5jcnlwdC5v cmcvMC0GA1UdEQQmMCSCDmNlbC5hZ2guZWR1LnBsghJ3d3cuY2VsLmFnaC5lZHUu cGwwgf4GA1UdIASB9jCB8zAIBgZngQwBAgEwgeYGCysGAQQBgt8TAQEBMIHWMCYG CCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCBqwYIKwYBBQUH AgIwgZ4MgZtUaGlzIENlcnRpZmljYXRlIG1heSBvbmx5IGJlIHJlbGllZCB1cG9u IGJ5IFJlbHlpbmcgUGFydGllcyBhbmQgb25seSBpbiBhY2NvcmRhbmNlIHdpdGgg dGhlIENlcnRpZmljYXRlIFBvbGljeSBmb3VuZCBhdCBodHRwczovL2xldHNlbmNy eXB0Lm9yZy9yZXBvc2l0b3J5LzCCAQQGCisGAQQB1nkCBAIEgfUEgfIA8AB3ANt0 r+7LKeyx/so+cW0s5bmquzb3hHGDx12dTze2H79kAAABYxOL4bgAAAQDAEgwRgIh AIjvym55JU3p0T4oN1irJwoqi4OpxjkkkYyePWme2mTzAiEA6fFDLWfdtP8R2mW0 7Mw4xEh+ZYQt+/1meFcAYPn1HgwAdQApPFGWVMg5ZbqqUPxYB9S3b79Yeily3KTD DPTlRUf0eAAAAWMTi+HIAAAEAwBGMEQCIAe0PTV0wIp66uW9iOSzNCCQQu0qrXI0 /q8Rgw9qM4qnAiBUtkDfN8UAwKGx/nbylPlzBWG8YZz3esWkks70RXb9CjANBgkq hkiG9w0BAQsFAAOCAQEAM5yjPddvQvpTUGDtDIwD8xd3EkPvROYu5j19YZHJILBE bux9ZPlvOuHPvmbRXDPFqzxfeEfkdidoagnyoOPXrYNLBD7YP7wJRSUqeVKGIuTx fbNmiosJ0zwKTtxJuuZbKG+rk8OEpcD/T19oXnumxRBzq7N+ENHa8tNhyPbICGvq EPKfUrO1Tm92Ftzx41SpzLr69SxVjDWJdOcTGyPqFgT6U5+kEU7hdfEfVZW7t/En Dlw3luEw5U/W16jvk9/yLwNMixiiRnKUUta3VBfpq4TbNSBgVj8Jogk9mi74hjZL /Bug1smWfuKTm+Dxioo+ZEjEfqV6o2L5FiGmgFssXA== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyMSBaFaK0zbGUh7HMMM4 vVl/0n6W0cLN1cTg27h3U8lzH2SHgiQi3T7GoDyVGbrwtqbSTFtY5Ot74eVZCmUy dCWuJJDsOpxi3PqQGt1uWXkG7b554BQTWNCMZ+03Y6ky+wwB2qXOZ/GJVnD/R0Jz PMpZtTroDmztKNGu13KQAOzJLwXC6ZjkHOMjL6LZHzlpIjrSGennkecNv5lxu6tO 58/w8H4/caZib787YwEDYDg9x37MCgdp2t5U7YfzJrLILb5vLFCdFsjtwhZrXSGk MM2Bu1DxFbAaPjY9mZkTC52TP0f5D4/3EJK8/j0suqBXcl/G16dOnSS+Asub2APV mwIDAQAB -----END PUBLIC KEY-----
ASN.1 decoded
[c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2 . . . . . . . . [c:0|t:2|false] INTEGER 288988696191175272558408797677692020552164 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt Authority X3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-04-29 21:35:24 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-07-28 21:35:24 +0000 UTC . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'cel.agh.edu.pl' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption) . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 25344561465964570226727448603055240822740323122765113333341879680208619351884522534939228571596262785247539869225079433227665048937293908589341270815144523570593456341418999647580505930340761442437493581044262315522553839870313669779319682563835616776663727223455954123720849784319915511983267137023647835814273197522403321034488482551382051121735253904878084182184479581629870323390285404859148293015316785637214996063989666450025279133173163312329487226034182072893069313152797215048073793512211480424786926310046458095177084631442704381204200167150146779005897565345919393530893238260053125903888448356456220317083 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537 . . . . . . . . [c:2|t:3|true] ORAddress . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits) 05a0 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes) 69a16b1bb36ebaa3e16ab933ac487401b7d88650 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName a84a6a63047dddbae6d139b7a64565eff3a8eca1 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (99 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.int-x3.letsencrypt.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cert.int-x3.letsencrypt.org/' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (38 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cel.agh.edu.pl' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cel.agh.edu.pl' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007700db74afeecb29ecb1feca3e716d2ce5b9aabb36f7847183c75d9d4f37b61fbf6400000163138be1b8000004030048304602210088efca6e79254de9d13e283758ab270a2a8b83a9c63924918c9e3d699eda64f3022100e9f1432d67ddb4ff11da65b4eccc38c4487e65842dfbfd6678570060f9f51e0c007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000163138be1c80000040300463044022007b43d3574c08a7aeae5bd88e4b334209042ed2aad7234feaf11830f6a338aa7022054b640df37c500c0a1b1fe76f294f9730561bc619cf77ac5a492cef44576fd0a . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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