libcal.ala.org

Issued by R3

About this certificate

This digital certificate with serial number 04:40:83:98:1c:3f:d6:0e:26:47:26:1c:15:f5:d8:a1:50:11 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=libcal.ala.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:40:83:98:1c:3f:d6:0e:26:47:26:1c:15:f5:d8:a1:50:11
Serial Number (int): 370402133879516459559772567106832765636625
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 3f:04:c8:47:e0:8f:a8:43:3c:27:07:fd:f1:5e:df:51:0b:ae:12:18
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): f6:1c:dd:62:88:13:78:b8:18:1f:51:a2:f6:3f:5e:80:f2:80:62:83
Fingerprint (sha256): 25:7c:2f:82:82:05:1f:d7:2e:ff:c2:d1:d2:7d:c7:99:99:49:a3:f3:c8:e5:7c:dd:e0:9b:68:1f:32:a6:85:2b

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

Revocation information

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

Check the revocation status for certificate libcal.ala.org

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for libcal.ala.org

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

libcal.ala.org

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betaconnect.ala.org
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www.ala.org
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alcts.ala.org
discuss.ala.org
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discuss.ala.org
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collectionconnection.alcts.ala.org
aasl.ala.org
files.ala.org
rmrtblog.ala.org
journals.ala.org
www.yalsa.ala.org
discuss.ala.org
alastore.ala.org
elearning.ala.org
joblist.ala.org
journals.ala.org
connect.ala.org
exhibitors-ala.heiexpo.com
libcal.ala.org
oa.ala.org
oif.ala.org
edispeakers.ala.org

Certificate

The complete raw certificate details for libcal.ala.org in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAn9lV1t6ljhDtlO60cH0R
pIIonktzpq1yZy4xCVeObIK8Ni3ux0WlmXqUi84GDaWZtIjZfcrLa54JQ/M3ZaD0
Z6pzSRF6AN9qv1nwdQp/BLG4TowVDfN/44H2UczPrAGiNCTvS+VnaqaVTxoNpvDT
oP4YFD4OFtWRkklHjpbAFjACM8ZWNMOVb81sJFNGulK4XK1nch/zszZFJoByWIpB
AWIYk9TCHBB9pXtODGwILrp7oLLyNyWIkJXzM3+i3Lkub0lH//+ccDOkoZqlkckk
Oi0LWy4l+Cvw6T0MFzvdLuXUjz7VbasiFQgErDjLV5MFUuMGoD0yxAYAxCxidxAz
owIDAQAB
-----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 370402133879516459559772567106832765636625
 . . . . . . . . [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 2024-02-23 12:10:50 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-23 12:10:49 +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 'libcal.ala.org'
 . . . . . . . . [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 20179062525272288456110850051632927461920206284432614930123493916832577485720423689055670122468838245024365401942450842126463042903749871196340874224395725697942919530969284180379559735958479178071498023363134293056913842367504766833720327554502407122410226490248235329552324475805945563462765302011610425246721687202720271284742344132741861472894466305955136676133749546667411828822855240372776416932361179852847747177022899586815336881030390435152690596915809648331488587992901981220919238418844447538125504066676753299250405773647656468121989631341800304225967079744250598425551655558745110503415645420909772157859
 . . . . . . . . . . . . . . . . . . . . [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)
							3f04c847e08fa8433c2707fdf15edf510bae1218
 . . . . . . . . . . . . . . . . [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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'libcal.ala.org'
 . . . . . . . . . . . . . . . . [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)
							00ef00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018dd6170c5f000004030047304502203f8a9d9a8165ddb9a828c828eda0988a0c6332e9370a8b47f3abbee378abea36022100d9be7d0336fc81edfe8d98f318f45ef2ffd73e2f5d582420f2c6d64d41cdf8e9007500a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018dd6170c65000004030046304402200481c09bf37fe7ca5ee1a0240e51543cc716cf37594a04e3f54f1a82095a831c022019acd08fddb0fd822b3de01620a8faad4bbd644799df74bd8330ae1c5beb20f9
 . . . . [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)
		00b17b58eade09c2794a30d6568d2bf709476942afab936a96a0a661cc08c8652815ee3a7383f251c697cfc73c76774f16cdf9c9c34ec27d4ce04403572f8dd5e53659bdffb1508b51bbd64d9c78b72ab691bccefa42a98fecd3e965aa1828d0362ce8dc1ebbf98526ae23dca242888ef102d10daffc850fda1cb9932c459f8b52a0842e0fcb71d9b287d8efefe8101676f31bb2bfde1e758ce9cb04cc15c90d7de6222d58cdd7c94290e59f56c0bb819257b146a12e3eb1e8afccba1abd7f2d620326bc00cca89b10ae200f804ab6c1f17f3b39b622e5d0cad292fbd92511e564ba8631290bbac54a62cc622d2031fd160b09989c9aede33c3d5109d0666a39a4