Function isEncryptionVersion

src/security/schemas.ts:23–25

(version: unknown)

export type EncryptionVersion = 1 | 2 | 3 | 4 | 5;

export const isEncryptionVersion = (version: unknown): version is EncryptionVersion => {
  return typeof version === "number" && version >= 1 && version <= 5;
};

/**
 * Valid encryption revisions (R entry).