piazza-mastro-lorenzo.ch
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:d7:6f:9f:88:aa:20:59:b9:a0:6e:62:7d:a3:87:d9:25:20 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=piazza-mastro-lorenzo.ch
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:d7:6f:9f:88:aa:20:59:b9:a0:6e:62:7d:a3:87:d9:25:20Serial Number (int): 334645939337901647999344074270671099208992
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: ca:c4:f2:91:3e:e2:c4:15:3e:e7:34:63:a3:81:cc:70:7f:3f:b0:5c
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 5c:ad:cd:cc:6d:6e:c8:72:c9:7b:76:84:39:42:ab:3f:7d:0f:d3:ac
Fingerprint (sha256): 08:78:01:16:12:2e:8f:7d:66:57:8e:4b:82:8c:b1:0b:8c:24:78:97:5d:2b:61:82:34:50:7f:f5:3f:83:e5:91
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 piazza-mastro-lorenzo.ch
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for piazza-mastro-lorenzo.ch
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
8 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
piazza-mastro-lorenzo.ch
Other certificates including the domain name piazza-mastro-lorenzo.ch
(limited to 100 certificates)
piazza-mastro-lorenzo.ch
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piazza-mastro-lorenzo.ch
Certificate
The complete raw certificate details for piazza-mastro-lorenzo.ch in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFFDCCA/ygAwIBAgISA9dvn4iqIFm5oG5ifaOH2SUgMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xNjA0MDYxMDM4MDBaFw0x NjA3MDUxMDM4MDBaMCMxITAfBgNVBAMTGHBpYXp6YS1tYXN0cm8tbG9yZW56by5j aDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALD29nfHMpcaMe5ThxYX i3NJ+5hxlQQKJWZxigj2Yd5aH+kmgsAL5FSKm5OQB+TQe5eln9wpCqIgZZpfdlrC iAAQNHXi2cv1LuMjDMogGpsTGOagPw2rH+n0IK3Rupxo4Rzg6e5vR2yMy94nsDDp UM2Ok0PFuzdtpJioJXXQ7kxIcjdoXC4VyN+ZRYbdxqA4FR75gg8rXZH+w6ph2l6/ hMAsJsLPo2F7XYENi0gWDflsZ5mu/oQJY7C4wI0CCvhdeiLPATlpbWGlbirAkD5m hNUoDfOFa+uW3a50a7S/hBI11GVhFyqb8JEHGM2hLEQkHlKgSK7R28OzMSMWwYAH aa0CAwEAAaOCAhkwggIVMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEF BQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUysTykT7ixBU+ 5zRjo4HMcH8/sFwwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwcAYI KwYBBQUHAQEEZDBiMC8GCCsGAQUFBzABhiNodHRwOi8vb2NzcC5pbnQteDMubGV0 c2VuY3J5cHQub3JnLzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZy8wIwYDVR0RBBwwGoIYcGlhenphLW1hc3Ryby1sb3Jlbnpv LmNoMIH+BgNVHSAEgfYwgfMwCAYGZ4EMAQIBMIHmBgsrBgEEAYLfEwEBATCB1jAm BggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwgasGCCsGAQUF BwICMIGeDIGbVGhpcyBDZXJ0aWZpY2F0ZSBtYXkgb25seSBiZSByZWxpZWQgdXBv biBieSBSZWx5aW5nIFBhcnRpZXMgYW5kIG9ubHkgaW4gYWNjb3JkYW5jZSB3aXRo IHRoZSBDZXJ0aWZpY2F0ZSBQb2xpY3kgZm91bmQgYXQgaHR0cHM6Ly9sZXRzZW5j cnlwdC5vcmcvcmVwb3NpdG9yeS8wDQYJKoZIhvcNAQELBQADggEBABzCD7ZDjXFf JGPCAKbKOiyFBlLI+owEqlI7k/KpN6CUP7o7HioUQJyKvPCUuaAxLmZLDFOyjN3C xq3rRIV/PSfNr79/9tzNfHBGz7av73LrGTSsT/b8C20VxYLGk8GT3NBwn1zZHYRk dVP/KCCmMtImP3hES1h3BEJsQVZL8bGoqUT+2bzvaVSB+rP6QD3fdjWVDdi+R0cO gRwZ+gmzxQ5XsIpRoinDmeviyhRlpIOVRrhWMmM9+gTOdNwWB7qh8aucov+aJROE 6hnK826nBZ2o7alpsEk20VnELdvgQm88ikw1zwDSUJ+3lODWvmTjdm6YJ6tpyyu0 fEPsyyQQEs8= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsPb2d8cylxox7lOHFheL c0n7mHGVBAolZnGKCPZh3lof6SaCwAvkVIqbk5AH5NB7l6Wf3CkKoiBlml92WsKI ABA0deLZy/Uu4yMMyiAamxMY5qA/Dasf6fQgrdG6nGjhHODp7m9HbIzL3iewMOlQ zY6TQ8W7N22kmKglddDuTEhyN2hcLhXI35lFht3GoDgVHvmCDytdkf7DqmHaXr+E wCwmws+jYXtdgQ2LSBYN+Wxnma7+hAljsLjAjQIK+F16Is8BOWltYaVuKsCQPmaE 1SgN84Vr65bdrnRrtL+EEjXUZWEXKpvwkQcYzaEsRCQeUqBIrtHbw7MxIxbBgAdp rQIDAQAB -----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 334645939337901647999344074270671099208992 . . . . . . . . [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 2016-04-06 10:38:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-07-05 10:38:00 +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 'piazza-mastro-lorenzo.ch' . . . . . . . . [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 22339723552403917353240887071766637447211637524828759804619036370999592415064206180721099232290427945934132614785539389062602519341270078730212953671694424928748457558031500810055089502127231276052129330690191953393734153153311361736465127341532345153262559764731034886363683032033495457294991695428112498816349095843895424734648642386411495869278820589528862534394069256487081528514887973440453405960577812013728681843740246323785363057853953361060659416900636084895733936841341480490930384318248637928868188915609569598876708729587056293577595699380571642745568296302085283713543849394905394635822780278237901056429 . . . . . . . . . . . . . . . . . . . . [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) cac4f2913ee2c4153ee73463a381cc707f3fb05c . . . . . . . . . . . . . . . . [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 (100 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 (28 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'piazza-mastro-lorenzo.ch' . . . . . . . . . . . . . . . . [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 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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