diff --git a/backend/alembic/versions/017_rsa_ddl.py b/backend/alembic/versions/017_rsa_ddl.py
new file mode 100644
index 0000000..0d468dc
--- /dev/null
+++ b/backend/alembic/versions/017_rsa_ddl.py
@@ -0,0 +1,35 @@
+"""017_rsa_ddl
+
+Revision ID: a0ba8268868d
+Revises: 031148da1d81
+Create Date: 2025-06-27 15:05:38.676825
+
+"""
+from alembic import op
+import sqlalchemy as sa
+import sqlmodel.sql.sqltypes
+
+
+# revision identifiers, used by Alembic.
+revision = 'a0ba8268868d'
+down_revision = '031148da1d81'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.create_table(
+        'rsa',
+        sa.Column('id', sa.BigInteger(), primary_key=True, nullable=False),
+        sa.Column('private_key', sa.Text(), default="", nullable=False),
+        sa.Column('public_key', sa.Text(), default="", nullable=False),
+        sa.Column('salt', sa.Text(), default="", nullable=False),
+        sa.Column('create_time', sa.BigInteger(), default=0, nullable=False),
+        sa.Column('update_time', sa.BigInteger(), default=0, nullable=False)
+    )
+    op.create_index(op.f('ix_rsa_id'), 'rsa', ['id'], unique=False)
+
+
+def downgrade():
+    op.drop_table('rsa')
+    op.drop_index(op.f('ix_rsa_id'), table_name='rsa')