grahamschoolinfo.uchicago.edu
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:cd:a3:76:db:1b:17:7c:1e:16:08:c5:bf:f9:9d:44:74:a4 was issued on by Let's Encrypt.
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=grahamschoolinfo.uchicago.edu
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:cd:a3:76:db:1b:17:7c:1e:16:08:c5:bf:f9:9d:44:74:a4Serial Number (int): 331312024312409505138512918268687553950884
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: eb:b9:5c:63:79:5e:99:3e:36:d4:81:cf:80:a9:fd:2f:38:32:16:d5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 92:bf:2e:a5:d2:30:37:2f:e3:24:b5:d5:e3:ae:91:b0:b9:3f:85:ca
Fingerprint (sha256): 00:fa:04:34:63:f7:b6:8c:27:e0:0a:71:71:7a:63:7c:91:2d:b0:4a:e5:7d:ef:9c:3c:2a:ca:79:73:bc:fa:fa
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate grahamschoolinfo.uchicago.edu
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for grahamschoolinfo.uchicago.edu
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
grahamschoolinfo.uchicago.edu
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Certificate
The complete raw certificate details for grahamschoolinfo.uchicago.edu in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGJTCCBQ2gAwIBAgISA82jdtsbF3weFgjFv/mdRHSkMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xODA3MzExNzEyMjlaFw0x ODEwMjkxNzEyMjlaMCgxJjAkBgNVBAMTHWdyYWhhbXNjaG9vbGluZm8udWNoaWNh Z28uZWR1MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAubITggYHe0YW ZZGqVWGnBhoQbPfvTHN5HoDjpmhLVm9sL4NzuktM5R/YhZHS3ebKKMsGMG2JtImz 7zb5VzQAlWMl0pmYAybz/ywXcZBQGxWCMJX0IJcvpgSfcdclkWED22YuO3VkxJyP qrh8UhUbfaTnU/JxOoW9jtE0ulr59G4TjJ/nHJ6Ckwfvh4Z5+57dpd8x10vOT+yI jBxDejqfS8b33hAzZqrBGCKQbhtoXO9hzw3dLD4a/ggwyxM6E7W80lRmtPN7c35z MEbC1OyR2wVF0W4MFPtoTR7VQF7VoLK06I3p8USZh090FDRXZ5s4s4vE5RMkDLd9 dZzheHzaSQIDAQABo4IDJTCCAyEwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBTruVxj eV6ZPjbUgc+Aqf0vODIW1TAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMCgGA1UdEQQhMB+CHWdyYWhhbXNjaG9vbGluZm8u dWNoaWNhZ28uZWR1MIH+BgNVHSAEgfYwgfMwCAYGZ4EMAQIBMIHmBgsrBgEEAYLf EwEBATCB1jAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcw gasGCCsGAQUFBwICMIGeDIGbVGhpcyBDZXJ0aWZpY2F0ZSBtYXkgb25seSBiZSBy ZWxpZWQgdXBvbiBieSBSZWx5aW5nIFBhcnRpZXMgYW5kIG9ubHkgaW4gYWNjb3Jk YW5jZSB3aXRoIHRoZSBDZXJ0aWZpY2F0ZSBQb2xpY3kgZm91bmQgYXQgaHR0cHM6 Ly9sZXRzZW5jcnlwdC5vcmcvcmVwb3NpdG9yeS8wggEEBgorBgEEAdZ5AgQCBIH1 BIHyAPAAdgDBFkrgp3LS1DktyArBB3DU8MSb3pkaSEDB+gdRZPYzYAAAAWTxipfz AAAEAwBHMEUCIQC/Rj9+4Si9Mh6TOdiRaIcF57KockvwCftJPo0+c9qJVAIgEac7 nwJ75+Zl5g0wJoZ0p09YVI8FYklWUugnAOUGZ7EAdgApPFGWVMg5ZbqqUPxYB9S3 b79Yeily3KTDDPTlRUf0eAAAAWTxipgIAAAEAwBHMEUCIEcpFJ2rm+XojTch6NlN R8Mw0MXl/miSmL8deSNFoJSOAiEAoR0ZJS2nAjqmrRmgEdIHDVF65tfFt3N3e0Uh UZFf9fowDQYJKoZIhvcNAQELBQADggEBAA6g+JFOCOh2wU2xFiOnlRCCID9oCNx8 TqllOFm1pQsG2enIB8hO/Lw4x06tSdef+C/t9knguh+pTxYRoBgolBkWI8hTuP2g r59fYsUgzp79MyX8p/UMIL2DMiAs9bLjiwcNZV0ysBIw71ulVm38FQJIfeGjxyqt nPHPGacfFlj+PcN9re4BsVEmdHGrAQIvGm0c/GXP+hYG0/nRq03rJT6siEzdLMaZ AuU7dW7Zkkuc2aX5+LHpEUXSjCpsMOQr1txucO3RIhdJfy4tDPP5xU31qLVB81Y7 2yCFIgQd6djuRm7zGnVsEqfZvMOliISjFJ0cSExJNuqv0ElKYRntwOc= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAubITggYHe0YWZZGqVWGn BhoQbPfvTHN5HoDjpmhLVm9sL4NzuktM5R/YhZHS3ebKKMsGMG2JtImz7zb5VzQA lWMl0pmYAybz/ywXcZBQGxWCMJX0IJcvpgSfcdclkWED22YuO3VkxJyPqrh8UhUb faTnU/JxOoW9jtE0ulr59G4TjJ/nHJ6Ckwfvh4Z5+57dpd8x10vOT+yIjBxDejqf S8b33hAzZqrBGCKQbhtoXO9hzw3dLD4a/ggwyxM6E7W80lRmtPN7c35zMEbC1OyR 2wVF0W4MFPtoTR7VQF7VoLK06I3p8USZh090FDRXZ5s4s4vE5RMkDLd9dZzheHza SQIDAQAB -----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 331312024312409505138512918268687553950884 . . . . . . . . [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 2018-07-31 17:12:29 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-10-29 17:12:29 +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 'grahamschoolinfo.uchicago.edu' . . . . . . . . [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 23441899067120056408089042919996687554995739998065016595003902594206721208521749188673985885322685576837177104027072031629986852290167808262869567291137145153444469159623261293006905465806687657010069916629441055045427762797701346978286219944566716114277572852579471986290701706027994604546406947571742934308350308043024298287235402650997404997780047046096511844584588466738730371620346809893317185661575218402554326544633134907735596441902035120237367005437396585312059524244115583960416645033744871279860991889968517628172779101477463336622619597914096217979189329945633376668558487475024144482083862538464972823113 . . . . . . . . . . . . . . . . . . . . [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) ebb95c63795e993e36d481cf80a9fd2f383216d5 . . . . . . . . . . . . . . . . [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 (33 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'grahamschoolinfo.uchicago.edu' . . . . . . . . . . . . . . . . [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) 00f0007600c1164ae0a772d2d4392dc80ac10770d4f0c49bde991a4840c1fa075164f6336000000164f18a97f30000040300473045022100bf463f7ee128bd321e9339d891688705e7b2a8724bf009fb493e8d3e73da8954022011a73b9f027be7e665e60d30268674a74f58548f0562495652e82700e50667b1007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000164f18a9808000004030047304502204729149dab9be5e88d3721e8d94d47c330d0c5e5fe689298bf1d792345a0948e022100a11d19252da7023aa6ad19a011d2070d517ae6d7c5b773777b452151915ff5fa . . . . [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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