ece.jhu.edu

Issued by R3

About this certificate

This digital certificate with serial number 03:5c:ae:d5:86:c1:d9:43:36:f4:45:09:80:2d:97:06:68:88 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=ece.jhu.edu

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:5c:ae:d5:86:c1:d9:43:36:f4:45:09:80:2d:97:06:68:88
Serial Number (int): 292875229915705683617924072117223878453384
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 5f:5f:a2:33:f1:36:81:4a:f8:cc:6a:f3:00:c3:8d:93:5a:61:09:ba
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): bb:19:67:03:dc:61:4d:6a:b0:aa:0e:51:fa:a7:ac:9e:04:ee:b3:5d
Fingerprint (sha256): 03:28:1f:f9:93:bb:e1:51:ae:88:cb:f2:57:0b:15:1d:26:54:f4:7a:11:39:4c:1b:72:4f:e6:dd:a5:04:cf:e6

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate ece.jhu.edu

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for ece.jhu.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

ece.jhu.edu

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Certificate

The complete raw certificate details for ece.jhu.edu in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsIDvWk4BRi3x3iq94Yen
6XU8R3+1o0RGidI7Hvl2qhaM0Gc3u+wBi3z0PRuCrFQLllxQRiPCHxjfxReD7Sb3
2iO024aSEY9n8qbwkXoGIz/cVYJktiw37HQ1veZsEv3Ws3G2RX5YsAA05kg6SGRx
yItIWc+pSntIeyz87VfrOh89v02tYeyZHoqtI3BNt0dyG5kZXDUcMWV682NCjbOo
4SajYgzMn7ca9Vg9EHoJsGixm83nfofjPnfblTPHRtnPDV0nuJwSTvWM9aAlBDFS
46ZdSTn7lmdUL+dXrwNIf58a8GRO0cu3Z5RyFokrFAXHRm1iajdVAf/MO6Ugfq07
pQIDAQAB
-----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 292875229915705683617924072117223878453384
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-07-30 18:01:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-10-28 18:01:23 +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 'ece.jhu.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 22281521878233552927603189207938152430593041624898333982706373578120077632172388169416470518016159858547630924568904875534573044741559240343103184051251486398181885139181178401232239535471011853062881881006609664221475816882015715132651138349719595176508453845693492107070023798289088206842629326082485305196647374880861061788921859034476741199063984511227935280047001712087329567850445321905565316594540964138878179560806640692588986851102853675355922908877629207635597454914643177659824850064287496961967932428228150082286815132749545003899494360085953710620995342771205003535039886816658310674943953111523508698021
 . . . . . . . . . . . . . . . . . . . . [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)
							5f5fa233f136814af8cc6af300c38d935a6109ba
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (15 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ece.jhu.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000189a82d3f080000040300463044022047bf0b10dcc5b53757a8263c334b4277360a513aacfb47243f2397c081617331022077981b533f722c1610eca8ba46b6d373bb9bafcd874935552a6d10126655f5ea007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000189a82d3ef80000040300473045022069acc38ebc4fb3ffb979c1fc2133b46eb9815353b37a93967552c79770446c87022100ccaddc4d1d645c78af0b1f4c5354bf368cc02048bd88b812efaa55ac5b1dc73e
 . . . . [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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