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123456789101112131415161718192021222324252627282930313233343536package crypto
import ( "bytes" "fmt" "io" "os"
"filippo.io/age")
// DecryptFile decrypts the given file using the given identitiesfunc DecryptFile(inputPath string, identities []age.Identity) ([]byte, error) { data, err := os.ReadFile(inputPath) if err != nil { return nil, fmt.Errorf("failed to read encrypted file: %w", err) } return DecryptBytes(data, identities)}
// DecryptBytes decrypts the given bytes using the given identitiesfunc DecryptBytes(encrypted []byte, identities []age.Identity) ([]byte, error) {
dec, err := age.Decrypt(bytes.NewReader(encrypted), identities...) if err != nil { return nil, fmt.Errorf("age decryption failed: %w", err) }
var out bytes.Buffer if _, err := io.Copy(&out, dec); err != nil { return nil, fmt.Errorf("failed to read decrypted data: %w", err) }
return out.Bytes(), nil}