forked from wrenn/wrenn
pptx704
a5ad3731f2
Moves 12 packages from internal/ to pkg/ (config, id, validate, events, db, auth, lifecycle, scheduler, channels, audit, service) so they can be imported by the enterprise repo as a Go module dependency. Introduces pkg/cpextension (shared Extension interface + ServerContext) and pkg/cpserver (Run() entrypoint with functional options) so the enterprise main.go can call cpserver.Run(cpserver.WithExtensions(...)) without duplicating the 20-step server bootstrap. Adds db/migrations/embed.go for go:embed access to OSS SQL migrations from the enterprise module. cmd/control-plane/main.go is reduced to a 10-line wrapper around cpserver.Run.
64 lines
1.5 KiB
Go
64 lines
1.5 KiB
Go
package channels
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import (
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"crypto/aes"
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"crypto/cipher"
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"crypto/rand"
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"encoding/base64"
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"fmt"
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"io"
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)
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// EncryptSecret encrypts plaintext using AES-256-GCM with a random nonce.
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// Returns base64(nonce || ciphertext).
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func EncryptSecret(key [32]byte, plaintext string) (string, error) {
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block, err := aes.NewCipher(key[:])
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if err != nil {
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return "", fmt.Errorf("aes cipher: %w", err)
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}
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gcm, err := cipher.NewGCM(block)
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if err != nil {
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return "", fmt.Errorf("gcm: %w", err)
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}
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nonce := make([]byte, gcm.NonceSize())
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if _, err := io.ReadFull(rand.Reader, nonce); err != nil {
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return "", fmt.Errorf("nonce: %w", err)
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}
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ciphertext := gcm.Seal(nonce, nonce, []byte(plaintext), nil)
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return base64.StdEncoding.EncodeToString(ciphertext), nil
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}
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// DecryptSecret decrypts a value produced by EncryptSecret.
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func DecryptSecret(key [32]byte, encoded string) (string, error) {
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data, err := base64.StdEncoding.DecodeString(encoded)
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if err != nil {
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return "", fmt.Errorf("base64 decode: %w", err)
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}
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block, err := aes.NewCipher(key[:])
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if err != nil {
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return "", fmt.Errorf("aes cipher: %w", err)
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}
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gcm, err := cipher.NewGCM(block)
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if err != nil {
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return "", fmt.Errorf("gcm: %w", err)
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}
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nonceSize := gcm.NonceSize()
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if len(data) < nonceSize {
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return "", fmt.Errorf("ciphertext too short")
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}
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nonce, ciphertext := data[:nonceSize], data[nonceSize:]
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plaintext, err := gcm.Open(nil, nonce, ciphertext, nil)
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if err != nil {
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return "", fmt.Errorf("decrypt: %w", err)
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}
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return string(plaintext), nil
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}
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