26 lines
497 B
Go
26 lines
497 B
Go
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package utils
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import (
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"crypto/rsa"
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"crypto/x509"
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"encoding/pem"
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"errors"
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"io/ioutil"
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)
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// LoadPrivateKeyFromFile loads a private key from a file...
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func LoadPrivateKeyFromFile(filename string) (*rsa.PrivateKey, error) {
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pemData, err := ioutil.ReadFile(filename)
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if err != nil {
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return nil, err
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}
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block, _ := pem.Decode(pemData)
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if block == nil || block.Type != "RSA PRIVATE KEY" {
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return nil, errors.New("not a private key")
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}
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return x509.ParsePKCS1PrivateKey(block.Bytes)
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}
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