note description: "Tests Cipher Feedback mode" author: "Colin LeMahieu" date: "$Date$" revision: "$Revision$" quote: "Liberty is the only thing you cannot have unless you are willing to give it to others. - William Allen White" class CFB_TEST inherit MODE_TEST_DATA undefine default_create end EQA_TEST_SET redefine on_prepare end feature {NONE} on_prepare local ciphertext: INTEGER_X do make_data create ciphertext.make_from_hex_string ("3b3fd92eb72dad20333449f8e83cfb4a") create ciphertext_1_128_128.make_filled (0, 16) ciphertext.to_fixed_width_byte_array (ciphertext_1_128_128, 0, 15) create ciphertext.make_from_hex_string ("c8a64537a0b3a93fcde3cdad9f1ce58b") create ciphertext_2_128_128.make_filled (0, 16) ciphertext.to_fixed_width_byte_array (ciphertext_2_128_128, 0, 15) create ciphertext.make_from_hex_string ("26751f67a3cbb140b1808cf187a4f4df") create ciphertext_3_128_128.make_filled (0, 16) ciphertext.to_fixed_width_byte_array (ciphertext_3_128_128, 0, 15) create ciphertext.make_from_hex_string ("c04b05357c5d1c0eeac4c66f9ff7f2e6") create ciphertext_4_128_128.make_filled (0, 16) ciphertext.to_fixed_width_byte_array (ciphertext_4_128_128, 0, 15) create ciphertext.make_from_hex_string ("cdc80d6fddf18cab34c25909c99a4174") create ciphertext_1_128_196.make_filled (0, 16) ciphertext.to_fixed_width_byte_array (ciphertext_1_128_196, 0, 15) create ciphertext.make_from_hex_string ("67ce7f7f81173621961a2b70171d3d7a") create ciphertext_2_128_196.make_filled (0, 16) ciphertext.to_fixed_width_byte_array (ciphertext_2_128_196, 0, 15) create ciphertext.make_from_hex_string ("2e1e8a1dd59b88b1c8e60fed1efac4c9") create ciphertext_3_128_196.make_filled (0, 16) ciphertext.to_fixed_width_byte_array (ciphertext_3_128_196, 0, 15) create ciphertext.make_from_hex_string ("c05f9f9ca9834fa042ae8fba584b09ff") create ciphertext_4_128_196.make_filled (0, 16) ciphertext.to_fixed_width_byte_array (ciphertext_4_128_196, 0, 15) create ciphertext.make_from_hex_string ("dc7e84bfda79164b7ecd8486985d3860") create ciphertext_1_128_256.make_filled (0, 16) ciphertext.to_fixed_width_byte_array (ciphertext_1_128_256, 0, 15) create ciphertext.make_from_hex_string ("39ffed143b28b1c832113c6331e5407b") create ciphertext_2_128_256.make_filled (0, 16) ciphertext.to_fixed_width_byte_array (ciphertext_2_128_256, 0, 15) create ciphertext.make_from_hex_string ("df10132415e54b92a13ed0a8267ae2f9") create ciphertext_3_128_256.make_filled (0, 16) ciphertext.to_fixed_width_byte_array (ciphertext_3_128_256, 0, 15) create ciphertext.make_from_hex_string ("75a385741ab9cef82031623d55b1e471") create ciphertext_4_128_256.make_filled (0, 16) ciphertext.to_fixed_width_byte_array (ciphertext_4_128_256, 0, 15) end feature ciphertext_1_128_128: SPECIAL [NATURAL_8] ciphertext_2_128_128: SPECIAL [NATURAL_8] ciphertext_3_128_128: SPECIAL [NATURAL_8] ciphertext_4_128_128: SPECIAL [NATURAL_8] ciphertext_1_128_196: SPECIAL [NATURAL_8] ciphertext_2_128_196: SPECIAL [NATURAL_8] ciphertext_3_128_196: SPECIAL [NATURAL_8] ciphertext_4_128_196: SPECIAL [NATURAL_8] ciphertext_1_128_256: SPECIAL [NATURAL_8] ciphertext_2_128_256: SPECIAL [NATURAL_8] ciphertext_3_128_256: SPECIAL [NATURAL_8] ciphertext_4_128_256: SPECIAL [NATURAL_8] test_encryption_128_128 local cfb: CFB_ENCRYPTION aes: AES_KEY ciphertext: SPECIAL [NATURAL_8] correct: BOOLEAN do create aes.make_spec_128 create ciphertext.make_filled (0, 16) create cfb.make (aes, iv, 0, 16) cfb.encrypt_block (block_1, 0, ciphertext, 0) correct := ciphertext.same_items (ciphertext_1_128_128, 0, 0, 16) assert ("test encryption 128 128 1", correct) cfb.encrypt_block (block_2, 0, ciphertext, 0) correct := ciphertext.same_items (ciphertext_2_128_128, 0, 0, 16) assert ("test encryption 128 128 2", correct) cfb.encrypt_block (block_3, 0, ciphertext, 0) correct := ciphertext.same_items (ciphertext_3_128_128, 0, 0, 16) assert ("test encryption 128 128 3", correct) cfb.encrypt_block (block_4, 0, ciphertext, 0) correct := ciphertext.same_items (ciphertext_4_128_128, 0, 0, 16) assert ("test encryption 128 128 4", correct) end test_decryption_128_128 local cfb: CFB_DECRYPTION aes: AES_KEY plaintext: SPECIAL [NATURAL_8] correct: BOOLEAN do create aes.make_spec_128 create plaintext.make_filled (0, 16) create cfb.make (aes, iv, 0, 16) cfb.decrypt_block (ciphertext_1_128_128, 0, plaintext, 0) correct := plaintext.same_items (block_1, 0, 0, 16) assert ("test decryption 128 128 1", correct) cfb.decrypt_block (ciphertext_2_128_128, 0, plaintext, 0) correct := plaintext.same_items (block_2, 0, 0, 16) assert ("test decryption 128 128 2", correct) cfb.decrypt_block (ciphertext_3_128_128, 0, plaintext, 0) correct := plaintext.same_items (block_3, 0, 0, 16) assert ("test decryption 128 128 3", correct) cfb.decrypt_block (ciphertext_4_128_128, 0, plaintext, 0) correct := plaintext.same_items (block_4, 0, 0, 16) assert ("test decryption 128 128 4", correct) end test_encryption_128_196 local cfb: CFB_ENCRYPTION aes: AES_KEY ciphertext: SPECIAL [NATURAL_8] correct: BOOLEAN do create aes.make_spec_196 create ciphertext.make_filled (0, 16) create cfb.make (aes, iv, 0, 16) cfb.encrypt_block (block_1, 0, ciphertext, 0) correct := ciphertext.same_items (ciphertext_1_128_196, 0, 0, 16) assert ("test encryption 128 196 1", correct) cfb.encrypt_block (block_2, 0, ciphertext, 0) correct := ciphertext.same_items (ciphertext_2_128_196, 0, 0, 16) assert ("test encryption 128 196 2", correct) cfb.encrypt_block (block_3, 0, ciphertext, 0) correct := ciphertext.same_items (ciphertext_3_128_196, 0, 0, 16) assert ("test encryption 128 196 3", correct) cfb.encrypt_block (block_4, 0, ciphertext, 0) correct := ciphertext.same_items (ciphertext_4_128_196, 0, 0, 16) assert ("test encryption 128 196 4", correct) end test_decryption_128_196 local cfb: CFB_DECRYPTION aes: AES_KEY plaintext: SPECIAL [NATURAL_8] correct: BOOLEAN do create aes.make_spec_196 create plaintext.make_filled (0, 16) create cfb.make (aes, iv, 0, 16) cfb.decrypt_block (ciphertext_1_128_196, 0, plaintext, 0) correct := plaintext.same_items (block_1, 0, 0, 16) assert ("test decryption 128 196 1", correct) cfb.decrypt_block (ciphertext_2_128_196, 0, plaintext, 0) correct := plaintext.same_items (block_2, 0, 0, 16) assert ("test decryption 128 196 2", correct) cfb.decrypt_block (ciphertext_3_128_196, 0, plaintext, 0) correct := plaintext.same_items (block_3, 0, 0, 16) assert ("test decryption 128 196 3", correct) cfb.decrypt_block (ciphertext_4_128_196, 0, plaintext, 0) correct := plaintext.same_items (block_4, 0, 0, 16) assert ("test decryption 128 196 4", correct) end test_encryption_128_256 local cfb: CFB_ENCRYPTION aes: AES_KEY ciphertext: SPECIAL [NATURAL_8] correct: BOOLEAN do create aes.make_spec_256 create ciphertext.make_filled (0, 16) create cfb.make (aes, iv, 0, 16) cfb.encrypt_block (block_1, 0, ciphertext, 0) correct := ciphertext.same_items (ciphertext_1_128_256, 0, 0, 16) assert ("test encryption 128 256 1", correct) cfb.encrypt_block (block_2, 0, ciphertext, 0) correct := ciphertext.same_items (ciphertext_2_128_256, 0, 0, 16) assert ("test encryption 128 256 2", correct) cfb.encrypt_block (block_3, 0, ciphertext, 0) correct := ciphertext.same_items (ciphertext_3_128_256, 0, 0, 16) assert ("test encryption 128 256 3", correct) cfb.encrypt_block (block_4, 0, ciphertext, 0) correct := ciphertext.same_items (ciphertext_4_128_256, 0, 0, 16) assert ("test encryption 128 256 4", correct) end test_decryption_128_256 local cfb: CFB_DECRYPTION aes: AES_KEY plaintext: SPECIAL [NATURAL_8] correct: BOOLEAN do create aes.make_spec_256 create plaintext.make_filled (0, 16) create cfb.make (aes, iv, 0, 16) cfb.decrypt_block (ciphertext_1_128_256, 0, plaintext, 0) correct := plaintext.same_items (block_1, 0, 0, 16) assert ("test decryption 128 256 1", correct) cfb.decrypt_block (ciphertext_2_128_256, 0, plaintext, 0) correct := plaintext.same_items (block_2, 0, 0, 16) assert ("test decryption 128 256 2", correct) cfb.decrypt_block (ciphertext_3_128_256, 0, plaintext, 0) correct := plaintext.same_items (block_3, 0, 0, 16) assert ("test decryption 128 256 3", correct) cfb.decrypt_block (ciphertext_4_128_256, 0, plaintext, 0) correct := plaintext.same_items (block_4, 0, 0, 16) assert ("test decryption 128 256 4", correct) end end