exec-courses.bu.edu

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:e2:90:04:d8:bd:ee:ee:c3:ab:55:54:0f:40:2e:f8:78:75 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=exec-courses.bu.edu

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e2:90:04:d8:bd:ee:ee:c3:ab:55:54:0f:40:2e:f8:78:75
Serial Number (int): 338432106716041837892264347864074208966773
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: a9:cc:ed:bf:da:3c:52:24:af:6e:5f:0d:a2:f7:20:87:1a:86:bd:72
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 75:a1:4e:0e:f3:6d:54:04:25:b8:12:e4:24:5f:c3:5b:9e:0e:75:e0
Fingerprint (sha256): 01:f2:ed:20:e9:4e:99:4f:ac:15:50:88:91:09:c1:9c:0f:3f:ed:c9:79:f6:ee:d1:96:9d:dc:66:b7:a9:de:ed

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate exec-courses.bu.edu

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for exec-courses.bu.edu

Public Key Algorithm

RSA

Key Size

4096

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

exec-courses.bu.edu

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Certificate

The complete raw certificate details for exec-courses.bu.edu in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 338432106716041837892264347864074208966773
 . . . . . . . . [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 2019-10-06 19:52:07 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-04 19:52:07 +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 'exec-courses.bu.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 762215290073624368255861572175445994937107925768107774672511206009292841315205788458227313306533449597703013129985992600190303725836641483350903595718588943316592346155621038999962991961743239308019008737902581467367756957686566360095979612453658595565101066635290087335418711129014529506515232856620991687071494658099278810671256423668710128063767936290535558784772887808958371195059109478836965102917635511640637515533271935721469942155215655436985254910562523299705122179560071189669353063651746684345684714093722390658050860110210471298687083800319353847729468340823406173008020940526850263759872082683037553262835893789557852625760496963330112132515089055485998180850678527990765241024691026935962040293525857171147916307064855168968585956135728119687215619310498334850802238524510273614126064759012099409849969492247405647654276391689296217249742946795027712976087388332032841138108522869467533061602642216148301760745735724097447989346309275199362296241695342464249194869801312937626243398943503071050767945356673857310495907775665293165158560735046564339587281395003717463196527149697483613643909186379445248872347681216910047533546242364429271731565038133621219015725231131228830124127504153622391147095621214481960517194691
 . . . . . . . . . . . . . . . . . . . . [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)
							a9ccedbfda3c5224af6e5f0da2f720871a86bd72
 . . . . . . . . . . . . . . . . [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 (23 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'exec-courses.bu.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 (69 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016da2d801830000040300473045022100ab99b40baa9f1319390a86807e848be5b56b30487d53def1e61af90eef8e71e40220778c736f2a9ef778a84f34d6d7aa0280abe988252ff3104912e2c5080c6568a9007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016da2d7ff850000040300473045022100eba1f00d3b5786ae558733f67331171260c17473541c68da56d267c9d40ff7ec02203a996d536f1e9ca1634b6bcba2ed0efeaa1033f06a1ea38d35bf6d4e8ebe08dc
 . . . . [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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