feat(1099): add ITinProtector with Data Protection encryption + last-4 helper

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-25 16:47:49 -07:00
parent 89238bba99
commit 5e2fbe800c
5 changed files with 64 additions and 0 deletions
@@ -0,0 +1,8 @@
+namespace ROLAC.API.Services.Security;
+
+/// <summary>Reversible protection for taxpayer identification numbers (SSN/EIN).</summary>
+public interface ITinProtector
+{
+    string Protect(string plaintext);
+    string Unprotect(string ciphertext);
+}