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https://github.com/indiependente/gox509inspector
Go tool to inspect x.509 certificates in PEM format
https://github.com/indiependente/gox509inspector
go golang pem x509 x509-parser x509certificates
Last synced: 25 days ago
JSON representation
Go tool to inspect x.509 certificates in PEM format
- Host: GitHub
- URL: https://github.com/indiependente/gox509inspector
- Owner: indiependente
- Created: 2018-03-06T21:33:39.000Z (almost 7 years ago)
- Default Branch: master
- Last Pushed: 2022-02-13T11:37:20.000Z (almost 3 years ago)
- Last Synced: 2024-11-14T01:33:28.447Z (2 months ago)
- Topics: go, golang, pem, x509, x509-parser, x509certificates
- Language: Go
- Size: 16.6 KB
- Stars: 4
- Watchers: 3
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
- awesome-golang-repositories - gox509inspector
README
[](https://goreportcard.com/report/github.com/indiependente/gox509inspector)
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# gox509inspector
Go tool to inspect x.509 certificates in PEM format
### API
```go
/*
Parsex509Cert takes an io.Reader in input and returns an x509 certificate and nil
if no errors occurred while reading and parsing the certificate.
If the certificate has reminder data, both the certificate and the error will be returned.
*/
func Parsex509Cert(r io.Reader) (*x509.Certificate, error)
```
```go
/*
GetQuickInfo returns the certificate's most useful info as a byte array
Version int
SerialNumber *big.Int
Issuer pkix.Name
Subject pkix.Name
NotBefore, NotAfter time.Time // Validity bounds.
KeyUsage KeyUsage
*/
func GetQuickInfo(c *x509.Certificate) []byte
```
### Example usage
```go
package main
import (
"fmt"
"gox509inspector/inspector"
"os"
)
func main() {
// pipe certificate in
c, err := inspector.Parsex509Cert(os.Stdin)
if c == nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
if err != nil {
fmt.Fprintln(os.Stdout, err)
}
bytes := inspector.GetQuickInfo(c)
fmt.Print(string(bytes))
}
// Output
// Version: 3
// SerialNumber: 2098790
// Issuer: CN=CA,O=SSOCircle,C=DE
// Subject: CN=idp.ssocircle.com,O=SSOCircle,C=DE
// Valid from: 2016-08-03 16:03:23 +0100 BST
// Valid to: 2026-03-04 15:03:23 +0000 GMT
```