hobokenchicken
348341f304
- Added AES-GCM encryption/decryption for provider API keys in the database. - Implemented RefreshProviders to load provider configs from the database with precedence over environment variables. - Updated dashboard handlers to encrypt keys on save and trigger in-memory provider refresh. - Updated Grok test model to grok-3-mini for better compatibility.
72 lines
1.5 KiB
Go
72 lines
1.5 KiB
Go
package utils
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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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// Encrypt encrypts plain text using AES-GCM with the given 32-byte key.
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func Encrypt(plainText string, key []byte) (string, error) {
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if len(key) != 32 {
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return "", fmt.Errorf("encryption key must be 32 bytes")
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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 "", 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 "", 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 "", err
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}
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// The nonce should be prepended to the ciphertext
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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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// Decrypt decrypts base64-encoded cipher text using AES-GCM with the given 32-byte key.
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func Decrypt(encodedCipherText string, key []byte) (string, error) {
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if len(key) != 32 {
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return "", fmt.Errorf("encryption key must be 32 bytes")
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}
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cipherText, err := base64.StdEncoding.DecodeString(encodedCipherText)
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if err != nil {
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return "", 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 "", 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 "", err
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}
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nonceSize := gcm.NonceSize()
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if len(cipherText) < nonceSize {
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return "", fmt.Errorf("cipher text too short")
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}
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nonce, actualCipherText := cipherText[:nonceSize], cipherText[nonceSize:]
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plainText, err := gcm.Open(nil, nonce, actualCipherText, nil)
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if err != nil {
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return "", err
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}
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return string(plainText), nil
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}
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