piazza-mastro-lorenzo.ch
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:87:0f:c4:ea:18:e0:fb:b9:ad:63:d5:6e:37:af:32:9b:1f 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): 03:87:0f:c4:ea:18:e0:fb:b9:ad:63:d5:6e:37:af:32:9b:1fSerial Number (int): 307295938187783431185986227300091837979423
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: a1:05:25:5c:f6:99:12:8a:28:55:ed:bf:b1:4e:e1:5a:25:08:eb:95
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 27:49:54:d9:cc:05:a2:e7:d4:f0:b1:49:68:f2:63:b7:60:cc:58:83
Fingerprint (sha256): fc:63:70:5b:db:46:5e:4a:dc:31:19:3d:5c:26:df:7d:e5:82:65:e6:35:36:6f:0a:8c:91:66:ba:5b:2f:f6:69
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck 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
9 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
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----- MIIGGzCCBQOgAwIBAgISA4cPxOoY4Pu5rWPVbjevMpsfMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xODA2MDEyMzM2MzBaFw0x ODA4MzAyMzM2MzBaMCMxITAfBgNVBAMTGHBpYXp6YS1tYXN0cm8tbG9yZW56by5j aDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAJjc7SA0MtkA7xte6qB5 Xfs5E6MNWrCe0vPevc+S+gS3FLcnw0hX95oTm2vf0B8Hql92E0ID6F64z9rKWVIC 58Hs9Ggx//DKCkAIcejqFs5c1euMGEDQGmQT7pIonxebr/iMyLfRihVLmZ5WVoH7 iNCeqLHC91hnr7Yf3g7lcWp/T/lqnOgwmlVvPgQbCu6L8QLknItoNNr2Yk+l+M8W TIARRJPAFhCJHZ6jnLHFFGarBtR4lpX9JqvlkIqdV2gvgegxCehrlMvjt2h6lmV2 3tsIJOqCLi9VClvfRiynmRaK+POMESVYIettL6nzxy1AqbOj7xBt5EBdFhOkD5D6 bZMCAwEAAaOCAyAwggMcMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEF BQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUoQUlXPaZEooo Ve2/sU7hWiUI65UwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYI KwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0 c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0 c2VuY3J5cHQub3JnLzAjBgNVHREEHDAaghhwaWF6emEtbWFzdHJvLWxvcmVuem8u Y2gwgf4GA1UdIASB9jCB8zAIBgZngQwBAgEwgeYGCysGAQQBgt8TAQEBMIHWMCYG CCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCBqwYIKwYBBQUH AgIwgZ4MgZtUaGlzIENlcnRpZmljYXRlIG1heSBvbmx5IGJlIHJlbGllZCB1cG9u IGJ5IFJlbHlpbmcgUGFydGllcyBhbmQgb25seSBpbiBhY2NvcmRhbmNlIHdpdGgg dGhlIENlcnRpZmljYXRlIFBvbGljeSBmb3VuZCBhdCBodHRwczovL2xldHNlbmNy eXB0Lm9yZy9yZXBvc2l0b3J5LzCCAQQGCisGAQQB1nkCBAIEgfUEgfIA8AB1ANt0 r+7LKeyx/so+cW0s5bmquzb3hHGDx12dTze2H79kAAABY73snNQAAAQDAEYwRAIg fAC5gITe+oM1fTaAsuAS81+W+yJ+3qevXItY1fJa5a4CIDOynrt/evpU7K7fSzqd XtVtnEd8lXyM/ip72NSDC6d0AHcApFASaQVaFVReYhGrN7wQP2KuVXakXksXFEU+ GyIQaiUAAAFjveyc5gAABAMASDBGAiEAxclgodGTIXsu11IwY9Tdwo9lHo80Pk6L u723NWEF4gICIQCF5oZbyJaydxfCHpsL0cZDTP+OjlVcohLISatERve2gDANBgkq hkiG9w0BAQsFAAOCAQEAAzTj/qTfXBOnhZp664P5L0v1xQZjOR+/uZ0Bz9Dzk7cR vxN5mWOEkGUjAMbfIGkEHF4FLlrxjTEI6GscZRGoGoKxUqLdBtawDmbnYg5nHxmK MlYIbGqTGgNlJqjdYqigEznJgCQIGSbR7gF/fpKlwuDq26/o9pSetPnkTGnaIAfQ sYdb6D3ySnJJ0w3f2QhHNz9Y/85+D0AT194kaX7BW4mrbTigXpGR3NvGd/1xaYRo MnbKHLnpNM10iMsUfXIapCmSQ0RgM+AtzbnSDNmoUqg5yXVPlxLiaylB9s/thbIh AyojyjIDyP0i+CgmmKR3haKbdBJWZam014Wx8HBG6Q== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmNztIDQy2QDvG17qoHld +zkTow1asJ7S8969z5L6BLcUtyfDSFf3mhOba9/QHweqX3YTQgPoXrjP2spZUgLn wez0aDH/8MoKQAhx6OoWzlzV64wYQNAaZBPukiifF5uv+IzIt9GKFUuZnlZWgfuI 0J6oscL3WGevth/eDuVxan9P+Wqc6DCaVW8+BBsK7ovxAuSci2g02vZiT6X4zxZM gBFEk8AWEIkdnqOcscUUZqsG1HiWlf0mq+WQip1XaC+B6DEJ6GuUy+O3aHqWZXbe 2wgk6oIuL1UKW99GLKeZFor484wRJVgh620vqfPHLUCps6PvEG3kQF0WE6QPkPpt kwIDAQAB -----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 307295938187783431185986227300091837979423 . . . . . . . . [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 2018-06-01 23:36:30 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-08-30 23:36:30 +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 19297165160234904216001640777352018520396317748516548502994039974565254894645821266258047191095619550674284015032191736293690131740922600645814298364147446395893772592925668987237233471928299406501221866905385661999858075128086583780592276746843816413251848322563671134693724832543861331727083733885344924375726691891143067179176925542622314830793380002151789673388107658977387375486441206727211694409482896049114590096930292601230120078733954587655422539298897418503252000743889214853956182158323202869728781702907877820821523867162773042464818222979858738818754196615543771134409544854642019809559437457014520442259 . . . . . . . . . . . . . . . . . . . . [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) a105255cf699128a2855edbfb14ee15a2508eb95 . . . . . . . . . . . . . . . . [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 (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 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007500db74afeecb29ecb1feca3e716d2ce5b9aabb36f7847183c75d9d4f37b61fbf6400000163bdec9cd4000004030046304402207c00b98084defa83357d3680b2e012f35f96fb227edea7af5c8b58d5f25ae5ae022033b29ebb7f7afa54ecaedf4b3a9d5ed56d9c477c957c8cfe2a7bd8d4830ba774007700a4501269055a15545e6211ab37bc103f62ae5576a45e4b1714453e1b22106a2500000163bdec9ce60000040300483046022100c5c960a1d193217b2ed7523063d4ddc28f651e8f343e4e8bbbbdb7356105e20202210085e6865bc896b27717c21e9b0bd1c6434cff8e8e555ca212c849ab4446f7b680 . . . . [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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