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zeekayandHanzo Dev
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Source files keep their SPDX-License-Identifier and Hanzo copyright line; the Gitea, Gogs and LFS Test Server copyrights they used to repeat now live once in NOTICE, alongside LICENSE. The header lint accepts any copyright line above the SPDX line, so it no longer demands an upstream one. Co-authored-by: Hanzo Dev <[email protected]>
58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
// Copyright 2026 Hanzo AI, Inc. All rights reserved.
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// SPDX-License-Identifier: MIT
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package util
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import (
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"crypto"
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"crypto/rand"
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"crypto/rsa"
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"crypto/sha256"
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"crypto/x509"
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"encoding/pem"
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)
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// GenerateKeyPair generates a public and private keypair
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func GenerateKeyPair(bits int) (string, string, error) {
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priv, _ := rsa.GenerateKey(rand.Reader, bits)
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privPem := pemBlockForPriv(priv)
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pubPem, err := pemBlockForPub(&priv.PublicKey)
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if err != nil {
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return "", "", err
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}
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return privPem, pubPem, nil
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}
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func pemBlockForPriv(priv *rsa.PrivateKey) string {
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privBytes := pem.EncodeToMemory(&pem.Block{
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Type: "RSA PRIVATE KEY",
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Bytes: x509.MarshalPKCS1PrivateKey(priv),
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})
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return string(privBytes)
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}
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func pemBlockForPub(pub *rsa.PublicKey) (string, error) {
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pubASN1, err := x509.MarshalPKIXPublicKey(pub)
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if err != nil {
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return "", err
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}
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pubBytes := pem.EncodeToMemory(&pem.Block{
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Type: "PUBLIC KEY",
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Bytes: pubASN1,
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})
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return string(pubBytes), nil
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}
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// CreatePublicKeyFingerprint creates a fingerprint of the given key.
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// The fingerprint is the sha256 sum of the PKIX structure of the key.
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func CreatePublicKeyFingerprint(key crypto.PublicKey) ([]byte, error) {
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bytes, err := x509.MarshalPKIXPublicKey(key)
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if err != nil {
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return nil, err
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}
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checksum := sha256.Sum256(bytes)
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return checksum[:], nil
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}
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