mirror of
https://github.com/emmansun/gmsm.git
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50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
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package smx509_test
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import (
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"crypto/dsa"
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"crypto/ecdsa"
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"crypto/ed25519"
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"crypto/rsa"
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"encoding/pem"
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"fmt"
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"github.com/emmansun/gmsm/sm2"
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"github.com/emmansun/gmsm/smx509"
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)
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func ExampleParsePKIXPublicKey() {
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const pubPEM = `
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-----BEGIN PUBLIC KEY-----
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MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAENpoOih+9ASfmKYx5lK5mLsrUK3Am
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B6kLUsqHlVyglXgoMEwo8Sr8xb/Q3gDMNnd7Wyp2bJE9ksb60ansO4QaKg==
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-----END PUBLIC KEY-----`
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block, _ := pem.Decode([]byte(pubPEM))
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if block == nil {
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panic("failed to parse PEM block containing the public key")
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}
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pub, err := smx509.ParsePKIXPublicKey(block.Bytes)
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if err != nil {
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panic("failed to parse DER encoded public key: " + err.Error())
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}
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switch pub := pub.(type) {
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case *rsa.PublicKey:
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fmt.Println("pub is of type RSA:", pub)
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case *dsa.PublicKey:
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fmt.Println("pub is of type DSA:", pub)
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case *ecdsa.PublicKey:
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fmt.Println("pub is of type ECDSA:", pub.Curve.Params().Name)
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case ed25519.PublicKey:
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fmt.Println("pub is of type Ed25519:", pub)
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default:
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panic("unknown type of public key")
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}
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isSM2 := sm2.IsSM2PublicKey(pub)
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fmt.Printf("%v\n", isSM2)
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// Output:
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// pub is of type ECDSA: sm2p256v1
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// true
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}
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