25 lines
631 B
Go
25 lines
631 B
Go
package crypto
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import (
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"crypto/ecdsa"
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"encoding/hex"
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"fmt"
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"os"
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)
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// LoadPrivateKey allows to load private key from various formats:
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// - wif string
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// - hex string
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// - file path (D-bytes or SEC 1 / ASN.1 DER form)
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func LoadPrivateKey(val string) (*ecdsa.PrivateKey, error) {
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if data, err := os.ReadFile(val); err == nil {
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return UnmarshalPrivateKey(data)
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} else if data, err = hex.DecodeString(val); err == nil {
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return UnmarshalPrivateKey(data)
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} else if key, err := WIFDecode(val); err == nil {
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return key, nil
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}
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return nil, fmt.Errorf("unknown key format (%q), expect: hex-string, wif or file-path", val)
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}
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