diff --git a/docs/conf.py b/docs/conf.py
index 8e0fc7b..69be32e 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -252,7 +252,3 @@
 
 # Example configuration for intersphinx: refer to the Python standard library.
 intersphinx_mapping = {'http://docs.python.org/': None}
-
-
-# Enable the new ReadTheDocs theme
-RTD_NEW_THEME = True
diff --git a/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-128.txt b/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-128.txt
new file mode 100644
index 0000000..0902491
--- /dev/null
+++ b/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-128.txt
@@ -0,0 +1,254 @@
+# Vectors from RFC 6229. Reformatted to work with the NIST loader
+[ENCRYPT]
+
+# 128-bit key
+COUNT = 0
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 0
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 9ac7cc9a609d1ef7b2932899cde41b97
+
+
+COUNT = 1
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 16
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 5248c4959014126a6e8a84f11d1a9e1c
+
+
+COUNT = 2
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 240
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 065902e4b620f6cc36c8589f66432f2b
+
+
+COUNT = 3
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 256
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = d39d566bc6bce3010768151549f3873f
+
+
+COUNT = 4
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 496
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = b6d1e6c4a5e4771cad79538df295fb11
+
+
+COUNT = 5
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 512
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = c68c1d5c559a974123df1dbc52a43b89
+
+
+COUNT = 6
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 752
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = c5ecf88de897fd57fed301701b82a259
+
+
+COUNT = 7
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 768
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = eccbe13de1fcc91c11a0b26c0bc8fa4d
+
+
+COUNT = 8
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 1008
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = e7a72574f8782ae26aabcf9ebcd66065
+
+
+COUNT = 9
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 1024
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = bdf0324e6083dcc6d3cedd3ca8c53c16
+
+
+COUNT = 10
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 1520
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = b40110c4190b5622a96116b0017ed297
+
+
+COUNT = 11
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 1536
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = ffa0b514647ec04f6306b892ae661181
+
+
+COUNT = 12
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 2032
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = d03d1bc03cd33d70dff9fa5d71963ebd
+
+
+COUNT = 13
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 2048
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 8a44126411eaa78bd51e8d87a8879bf5
+
+
+COUNT = 14
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 3056
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = fabeb76028ade2d0e48722e46c4615a3
+
+
+COUNT = 15
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 3072
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = c05d88abd50357f935a63c59ee537623
+
+
+COUNT = 16
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 4080
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = ff38265c1642c1abe8d3c2fe5e572bf8
+
+
+COUNT = 17
+KEY = 0102030405060708090a0b0c0d0e0f10
+OFFSET = 4096
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = a36a4c301ae8ac13610ccbc12256cacc
+
+# key 2
+COUNT = 18
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 0
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 720c94b63edf44e131d950ca211a5a30
+
+
+COUNT = 19
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 16
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = c366fdeacf9ca80436be7c358424d20b
+
+
+COUNT = 20
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 240
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = b3394a40aabf75cba42282ef25a0059f
+
+
+COUNT = 21
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 256
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 4847d81da4942dbc249defc48c922b9f
+
+
+COUNT = 22
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 496
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 08128c469f275342adda202b2b58da95
+
+
+COUNT = 23
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 512
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 970dacef40ad98723bac5d6955b81761
+
+
+COUNT = 24
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 752
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 3cb89993b07b0ced93de13d2a11013ac
+
+
+COUNT = 25
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 768
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = ef2d676f1545c2c13dc680a02f4adbfe
+
+
+COUNT = 26
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 1008
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = b60595514f24bc9fe522a6cad7393644
+
+
+COUNT = 27
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 1024
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = b515a8c5011754f59003058bdb81514e
+
+
+COUNT = 28
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 1520
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 3c70047e8cbc038e3b9820db601da495
+
+
+COUNT = 29
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 1536
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 1175da6ee756de46a53e2b075660b770
+
+
+COUNT = 30
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 2032
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 00a542bba02111cc2c65b38ebdba587e
+
+
+COUNT = 31
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 2048
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 5865fdbb5b48064104e830b380f2aede
+
+
+COUNT = 32
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 3056
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 34b21ad2ad44e999db2d7f0863f0d9b6
+
+
+COUNT = 33
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 3072
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 84a9218fc36e8a5f2ccfbeae53a27d25
+
+
+COUNT = 34
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 4080
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = a2221a11b833ccb498a59540f0545f4a
+
+
+COUNT = 35
+KEY = ebb46227c6cc8b37641910833222772a
+OFFSET = 4096
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 5bbeb4787d59e5373fdbea6c6f75c29b
diff --git a/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-192.txt b/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-192.txt
new file mode 100644
index 0000000..f2fbaaf
--- /dev/null
+++ b/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-192.txt
@@ -0,0 +1,254 @@
+# Vectors from RFC 6229. Reformatted to work with the NIST loader
+[ENCRYPT]
+
+# 192-bit key
+COUNT = 0
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 0
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 0595e57fe5f0bb3c706edac8a4b2db11
+
+
+COUNT = 1
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 16
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = dfde31344a1af769c74f070aee9e2326
+
+
+COUNT = 2
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 240
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = b06b9b1e195d13d8f4a7995c4553ac05
+
+
+COUNT = 3
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 256
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 6bd2378ec341c9a42f37ba79f88a32ff
+
+
+COUNT = 4
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 496
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = e70bce1df7645adb5d2c4130215c3522
+
+
+COUNT = 5
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 512
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 9a5730c7fcb4c9af51ffda89c7f1ad22
+
+
+COUNT = 6
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 752
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 0485055fd4f6f0d963ef5ab9a5476982
+
+
+COUNT = 7
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 768
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 591fc66bcda10e452b03d4551f6b62ac
+
+
+COUNT = 8
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 1008
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 2753cc83988afa3e1688a1d3b42c9a02
+
+
+COUNT = 9
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 1024
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 93610d523d1d3f0062b3c2a3bbc7c7f0
+
+
+COUNT = 10
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 1520
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 96c248610aadedfeaf8978c03de8205a
+
+
+COUNT = 11
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 1536
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 0e317b3d1c73b9e9a4688f296d133a19
+
+
+COUNT = 12
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 2032
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = bdf0e6c3cca5b5b9d533b69c56ada120
+
+
+COUNT = 13
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 2048
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 88a218b6e2ece1e6246d44c759d19b10
+
+
+COUNT = 14
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 3056
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 6866397e95c140534f94263421006e40
+
+
+COUNT = 15
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 3072
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 32cb0a1e9542c6b3b8b398abc3b0f1d5
+
+
+COUNT = 16
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 4080
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 29a0b8aed54a132324c62e423f54b4c8
+
+
+COUNT = 17
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718
+OFFSET = 4096
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 3cb0f3b5020a98b82af9fe154484a168
+
+# key 2
+COUNT = 18
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 0
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 54b64e6b5a20b5e2ec84593dc7989da7
+
+
+COUNT = 19
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 16
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = c135eee237a85465ff97dc03924f45ce
+
+
+COUNT = 20
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 240
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = cfcc922fb4a14ab45d6175aabbf2d201
+
+
+COUNT = 21
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 256
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 837b87e2a446ad0ef798acd02b94124f
+
+
+COUNT = 22
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 496
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 17a6dbd664926a0636b3f4c37a4f4694
+
+
+COUNT = 23
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 512
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 4a5f9f26aeeed4d4a25f632d305233d9
+
+
+COUNT = 24
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 752
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 80a3d01ef00c8e9a4209c17f4eeb358c
+
+
+COUNT = 25
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 768
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = d15e7d5ffaaabc0207bf200a117793a2
+
+
+COUNT = 26
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 1008
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 349682bf588eaa52d0aa1560346aeafa
+
+
+COUNT = 27
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 1024
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = f5854cdb76c889e3ad63354e5f7275e3
+
+
+COUNT = 28
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 1520
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 532c7ceccb39df3236318405a4b1279c
+
+
+COUNT = 29
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 1536
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = baefe6d9ceb651842260e0d1e05e3b90
+
+
+COUNT = 30
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 2032
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = e82d8c6db54e3c633f581c952ba04207
+
+
+COUNT = 31
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 2048
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 4b16e50abd381bd70900a9cd9a62cb23
+
+
+COUNT = 32
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 3056
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 3682ee33bd148bd9f58656cd8f30d9fb
+
+
+COUNT = 33
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 3072
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 1e5a0b8475045d9b20b2628624edfd9e
+
+
+COUNT = 34
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 4080
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 63edd684fb826282fe528f9c0e9237bc
+
+
+COUNT = 35
+KEY = c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 4096
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = e4dd2e98d6960fae0b43545456743391
diff --git a/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-256.txt b/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-256.txt
new file mode 100644
index 0000000..35bf786
--- /dev/null
+++ b/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-256.txt
@@ -0,0 +1,254 @@
+# Vectors from RFC 6229. Reformatted to work with the NIST loader
+[ENCRYPT]
+
+# 256-bit key
+COUNT = 0
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 0
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = eaa6bd25880bf93d3f5d1e4ca2611d91
+
+
+COUNT = 1
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 16
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = cfa45c9f7e714b54bdfa80027cb14380
+
+
+COUNT = 2
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 240
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 114ae344ded71b35f2e60febad727fd8
+
+
+COUNT = 3
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 256
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 02e1e7056b0f623900496422943e97b6
+
+
+COUNT = 4
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 496
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 91cb93c787964e10d9527d999c6f936b
+
+
+COUNT = 5
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 512
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 49b18b42f8e8367cbeb5ef104ba1c7cd
+
+
+COUNT = 6
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 752
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 87084b3ba700bade955610672745b374
+
+
+COUNT = 7
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 768
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = e7a7b9e9ec540d5ff43bdb12792d1b35
+
+
+COUNT = 8
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 1008
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = c799b596738f6b018c76c74b1759bd90
+
+
+COUNT = 9
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 1024
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 7fec5bfd9f9b89ce6548309092d7e958
+
+
+COUNT = 10
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 1520
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 40f250b26d1f096a4afd4c340a588815
+
+
+COUNT = 11
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 1536
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 3e34135c79db010200767651cf263073
+
+
+COUNT = 12
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 2032
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = f656abccf88dd827027b2ce917d464ec
+
+
+COUNT = 13
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 2048
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 18b62503bfbc077fbabb98f20d98ab34
+
+
+COUNT = 14
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 3056
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 8aed95ee5b0dcbfbef4eb21d3a3f52f9
+
+
+COUNT = 15
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 3072
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 625a1ab00ee39a5327346bddb01a9c18
+
+
+COUNT = 16
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 4080
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = a13a7c79c7e119b5ab0296ab28c300b9
+
+
+COUNT = 17
+KEY = 0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20
+OFFSET = 4096
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = f3e4c0a2e02d1d01f7f0a74618af2b48
+
+# key 2
+COUNT = 18
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 0
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = dd5bcb0018e922d494759d7c395d02d3
+
+
+COUNT = 19
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 16
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = c8446f8f77abf737685353eb89a1c9eb
+
+
+COUNT = 20
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 240
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = af3e30f9c095045938151575c3fb9098
+
+
+COUNT = 21
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 256
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = f8cb6274db99b80b1d2012a98ed48f0e
+
+
+COUNT = 22
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 496
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 25c3005a1cb85de076259839ab7198ab
+
+
+COUNT = 23
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 512
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 9dcbc183e8cb994b727b75be3180769c
+
+
+COUNT = 24
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 752
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = a1d3078dfa9169503ed9d4491dee4eb2
+
+
+COUNT = 25
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 768
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 8514a5495858096f596e4bcd66b10665
+
+
+COUNT = 26
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 1008
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 5f40d59ec1b03b33738efa60b2255d31
+
+
+COUNT = 27
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 1024
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 3477c7f764a41baceff90bf14f92b7cc
+
+
+COUNT = 28
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 1520
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = ac4e95368d99b9eb78b8da8f81ffa795
+
+
+COUNT = 29
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 1536
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 8c3c13f8c2388bb73f38576e65b7c446
+
+
+COUNT = 30
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 2032
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 13c4b9c1dfb66579eddd8a280b9f7316
+
+
+COUNT = 31
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 2048
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = ddd27820550126698efaadc64b64f66e
+
+
+COUNT = 32
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 3056
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = f08f2e66d28ed143f3a237cf9de73559
+
+
+COUNT = 33
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 3072
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 9ea36c525531b880ba124334f57b0b70
+
+
+COUNT = 34
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 4080
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = d5a39e3dfcc50280bac4a6b5aa0dca7d
+
+
+COUNT = 35
+KEY = 1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a
+OFFSET = 4096
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 370b1c1fe655916d97fd0d47ca1d72b8
diff --git a/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-40.txt b/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-40.txt
new file mode 100644
index 0000000..5fe7d01
--- /dev/null
+++ b/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-40.txt
@@ -0,0 +1,237 @@
+# Vectors from RFC 6229. Reformatted to work with the NIST loader
+[ENCRYPT]
+
+# 40-bit key
+COUNT = 0
+KEY = 0102030405
+OFFSET = 0
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = b2396305f03dc027ccc3524a0a1118a8
+
+COUNT = 1
+KEY = 0102030405
+OFFSET = 16
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 6982944f18fc82d589c403a47a0d0919
+
+COUNT = 2
+KEY = 0102030405
+OFFSET = 240
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 28cb1132c96ce286421dcaadb8b69eae
+
+COUNT = 3
+KEY = 0102030405
+OFFSET = 256
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 1cfcf62b03eddb641d77dfcf7f8d8c93
+
+COUNT = 4
+KEY = 0102030405
+OFFSET = 496
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 42b7d0cdd918a8a33dd51781c81f4041
+
+COUNT = 5
+KEY = 0102030405
+OFFSET = 512
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 6459844432a7da923cfb3eb4980661f6
+
+COUNT = 6
+KEY = 0102030405
+OFFSET = 752
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = ec10327bde2beefd18f9277680457e22
+
+COUNT = 7
+KEY = 0102030405
+OFFSET = 768
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = eb62638d4f0ba1fe9fca20e05bf8ff2b
+
+COUNT = 8
+KEY = 0102030405
+OFFSET = 1008
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 45129048e6a0ed0b56b490338f078da5
+
+COUNT = 9
+KEY = 0102030405
+OFFSET = 1024
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 30abbcc7c20b01609f23ee2d5f6bb7df
+
+COUNT = 10
+KEY = 0102030405
+OFFSET = 1520
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 3294f744d8f9790507e70f62e5bbceea
+
+COUNT = 11
+KEY = 0102030405
+OFFSET = 1536
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = d8729db41882259bee4f825325f5a130
+
+COUNT = 12
+KEY = 0102030405
+OFFSET = 2032
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 1eb14a0c13b3bf47fa2a0ba93ad45b8b
+
+COUNT = 13
+KEY = 0102030405
+OFFSET = 2048
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = cc582f8ba9f265e2b1be9112e975d2d7
+
+COUNT = 14
+KEY = 0102030405
+OFFSET = 3056
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = f2e30f9bd102ecbf75aaade9bc35c43c
+
+COUNT = 15
+KEY = 0102030405
+OFFSET = 3072
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = ec0e11c479dc329dc8da7968fe965681
+
+COUNT = 16
+KEY = 0102030405
+OFFSET = 4080
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 068326a2118416d21f9d04b2cd1ca050
+
+COUNT = 17
+KEY = 0102030405
+OFFSET = 4096
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = ff25b58995996707e51fbdf08b34d875
+
+# key 2
+COUNT = 18
+KEY = 833222772a
+OFFSET = 0
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 80ad97bdc973df8a2e879e92a497efda
+
+
+COUNT = 19
+KEY = 833222772a
+OFFSET = 16
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 20f060c2f2e5126501d3d4fea10d5fc0
+
+
+COUNT = 20
+KEY = 833222772a
+OFFSET = 240
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = faa148e99046181fec6b2085f3b20ed9
+
+
+COUNT = 21
+KEY = 833222772a
+OFFSET = 256
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = f0daf5bab3d596839857846f73fbfe5a
+
+
+COUNT = 22
+KEY = 833222772a
+OFFSET = 496
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 1c7e2fc4639232fe297584b296996bc8
+
+
+COUNT = 23
+KEY = 833222772a
+OFFSET = 512
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 3db9b249406cc8edffac55ccd322ba12
+
+
+COUNT = 24
+KEY = 833222772a
+OFFSET = 752
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = e4f9f7e0066154bbd125b745569bc897
+
+
+COUNT = 25
+KEY = 833222772a
+OFFSET = 768
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 75d5ef262b44c41a9cf63ae14568e1b9
+
+
+COUNT = 26
+KEY = 833222772a
+OFFSET = 1008
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 6da453dbf81e82334a3d8866cb50a1e3
+
+
+COUNT = 27
+KEY = 833222772a
+OFFSET = 1024
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 7828d074119cab5c22b294d7a9bfa0bb
+
+
+COUNT = 28
+KEY = 833222772a
+OFFSET = 1520
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = adb89cea9a15fbe617295bd04b8ca05c
+
+
+COUNT = 29
+KEY = 833222772a
+OFFSET = 1536
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 6251d87fd4aaae9a7e4ad5c217d3f300
+
+
+COUNT = 30
+KEY = 833222772a
+OFFSET = 2032
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = e7119bd6dd9b22afe8f89585432881e2
+
+
+COUNT = 31
+KEY = 833222772a
+OFFSET = 2048
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 785b60fd7ec4e9fcb6545f350d660fab
+
+
+COUNT = 32
+KEY = 833222772a
+OFFSET = 3056
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = afecc037fdb7b0838eb3d70bcd268382
+
+
+COUNT = 33
+KEY = 833222772a
+OFFSET = 3072
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = dbc1a7b49d57358cc9fa6d61d73b7cf0
+
+
+COUNT = 34
+KEY = 833222772a
+OFFSET = 4080
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 6349d126a37afcba89794f9804914fdc
+
+
+COUNT = 35
+KEY = 833222772a
+OFFSET = 4096
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = bf42c3018c2f7c66bfde524975768115
diff --git a/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-56.txt b/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-56.txt
new file mode 100644
index 0000000..78bdfd4
--- /dev/null
+++ b/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-56.txt
@@ -0,0 +1,254 @@
+# Vectors from RFC 6229. Reformatted to work with the NIST loader
+[ENCRYPT]
+
+# 56-bit key
+COUNT = 0
+KEY = 01020304050607
+OFFSET = 0
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 293f02d47f37c9b633f2af5285feb46b
+
+
+COUNT = 1
+KEY = 01020304050607
+OFFSET = 16
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = e620f1390d19bd84e2e0fd752031afc1
+
+
+COUNT = 2
+KEY = 01020304050607
+OFFSET = 240
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 914f02531c9218810df60f67e338154c
+
+
+COUNT = 3
+KEY = 01020304050607
+OFFSET = 256
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = d0fdb583073ce85ab83917740ec011d5
+
+
+COUNT = 4
+KEY = 01020304050607
+OFFSET = 496
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 75f81411e871cffa70b90c74c592e454
+
+
+COUNT = 5
+KEY = 01020304050607
+OFFSET = 512
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 0bb87202938dad609e87a5a1b079e5e4
+
+
+COUNT = 6
+KEY = 01020304050607
+OFFSET = 752
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = c2911246b612e7e7b903dfeda1dad866
+
+
+COUNT = 7
+KEY = 01020304050607
+OFFSET = 768
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 32828f91502b6291368de8081de36fc2
+
+
+COUNT = 8
+KEY = 01020304050607
+OFFSET = 1008
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = f3b9a7e3b297bf9ad804512f9063eff1
+
+
+COUNT = 9
+KEY = 01020304050607
+OFFSET = 1024
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 8ecb67a9ba1f55a5a067e2b026a3676f
+
+
+COUNT = 10
+KEY = 01020304050607
+OFFSET = 1520
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = d2aa902bd42d0d7cfd340cd45810529f
+
+
+COUNT = 11
+KEY = 01020304050607
+OFFSET = 1536
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 78b272c96e42eab4c60bd914e39d06e3
+
+
+COUNT = 12
+KEY = 01020304050607
+OFFSET = 2032
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = f4332fd31a079396ee3cee3f2a4ff049
+
+
+COUNT = 13
+KEY = 01020304050607
+OFFSET = 2048
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 05459781d41fda7f30c1be7e1246c623
+
+
+COUNT = 14
+KEY = 01020304050607
+OFFSET = 3056
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = adfd3868b8e51485d5e610017e3dd609
+
+
+COUNT = 15
+KEY = 01020304050607
+OFFSET = 3072
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = ad26581c0c5be45f4cea01db2f3805d5
+
+
+COUNT = 16
+KEY = 01020304050607
+OFFSET = 4080
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = f3172ceffc3b3d997c85ccd5af1a950c
+
+
+COUNT = 17
+KEY = 01020304050607
+OFFSET = 4096
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = e74b0b9731227fd37c0ec08a47ddd8b8
+
+# key 2
+COUNT = 18
+KEY = 1910833222772a
+OFFSET = 0
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = bc9222dbd3274d8fc66d14ccbda6690b
+
+
+COUNT = 19
+KEY = 1910833222772a
+OFFSET = 16
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 7ae627410c9a2be693df5bb7485a63e3
+
+
+COUNT = 20
+KEY = 1910833222772a
+OFFSET = 240
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 3f0931aa03defb300f060103826f2a64
+
+
+COUNT = 21
+KEY = 1910833222772a
+OFFSET = 256
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = beaa9ec8d59bb68129f3027c96361181
+
+
+COUNT = 22
+KEY = 1910833222772a
+OFFSET = 496
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 74e04db46d28648d7dee8a0064b06cfe
+
+
+COUNT = 23
+KEY = 1910833222772a
+OFFSET = 512
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 9b5e81c62fe023c55be42f87bbf932b8
+
+
+COUNT = 24
+KEY = 1910833222772a
+OFFSET = 752
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = ce178fc1826efecbc182f57999a46140
+
+
+COUNT = 25
+KEY = 1910833222772a
+OFFSET = 768
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 8bdf55cd55061c06dba6be11de4a578a
+
+
+COUNT = 26
+KEY = 1910833222772a
+OFFSET = 1008
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 626f5f4dce652501f3087d39c92cc349
+
+
+COUNT = 27
+KEY = 1910833222772a
+OFFSET = 1024
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 42daac6a8f9ab9a7fd137c6037825682
+
+
+COUNT = 28
+KEY = 1910833222772a
+OFFSET = 1520
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = cc03fdb79192a207312f53f5d4dc33d9
+
+
+COUNT = 29
+KEY = 1910833222772a
+OFFSET = 1536
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = f70f14122a1c98a3155d28b8a0a8a41d
+
+
+COUNT = 30
+KEY = 1910833222772a
+OFFSET = 2032
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 2a3a307ab2708a9c00fe0b42f9c2d6a1
+
+
+COUNT = 31
+KEY = 1910833222772a
+OFFSET = 2048
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 862617627d2261eab0b1246597ca0ae9
+
+
+COUNT = 32
+KEY = 1910833222772a
+OFFSET = 3056
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 55f877ce4f2e1ddbbf8e13e2cde0fdc8
+
+
+COUNT = 33
+KEY = 1910833222772a
+OFFSET = 3072
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 1b1556cb935f173337705fbb5d501fc1
+
+
+COUNT = 34
+KEY = 1910833222772a
+OFFSET = 4080
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = ecd0e96602be7f8d5092816cccf2c2e9
+
+
+COUNT = 35
+KEY = 1910833222772a
+OFFSET = 4096
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 027881fab4993a1c262024a94fff3f61
diff --git a/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-64.txt b/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-64.txt
new file mode 100644
index 0000000..dca652e
--- /dev/null
+++ b/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-64.txt
@@ -0,0 +1,254 @@
+# Vectors from RFC 6229. Reformatted to work with the NIST loader
+[ENCRYPT]
+
+# 64-bit key
+COUNT = 0
+KEY = 0102030405060708
+OFFSET = 0
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 97ab8a1bf0afb96132f2f67258da15a8
+
+
+COUNT = 1
+KEY = 0102030405060708
+OFFSET = 16
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 8263efdb45c4a18684ef87e6b19e5b09
+
+
+COUNT = 2
+KEY = 0102030405060708
+OFFSET = 240
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 9636ebc9841926f4f7d1f362bddf6e18
+
+
+COUNT = 3
+KEY = 0102030405060708
+OFFSET = 256
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = d0a990ff2c05fef5b90373c9ff4b870a
+
+
+COUNT = 4
+KEY = 0102030405060708
+OFFSET = 496
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 73239f1db7f41d80b643c0c52518ec63
+
+
+COUNT = 5
+KEY = 0102030405060708
+OFFSET = 512
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 163b319923a6bdb4527c626126703c0f
+
+
+COUNT = 6
+KEY = 0102030405060708
+OFFSET = 752
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 49d6c8af0f97144a87df21d91472f966
+
+
+COUNT = 7
+KEY = 0102030405060708
+OFFSET = 768
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 44173a103b6616c5d5ad1cee40c863d0
+
+
+COUNT = 8
+KEY = 0102030405060708
+OFFSET = 1008
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 273c9c4b27f322e4e716ef53a47de7a4
+
+
+COUNT = 9
+KEY = 0102030405060708
+OFFSET = 1024
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = c6d0e7b226259fa9023490b26167ad1d
+
+
+COUNT = 10
+KEY = 0102030405060708
+OFFSET = 1520
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 1fe8986713f07c3d9ae1c163ff8cf9d3
+
+
+COUNT = 11
+KEY = 0102030405060708
+OFFSET = 1536
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 8369e1a965610be887fbd0c79162aafb
+
+
+COUNT = 12
+KEY = 0102030405060708
+OFFSET = 2032
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 0a0127abb44484b9fbef5abcae1b579f
+
+
+COUNT = 13
+KEY = 0102030405060708
+OFFSET = 2048
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = c2cdadc6402e8ee866e1f37bdb47e42c
+
+
+COUNT = 14
+KEY = 0102030405060708
+OFFSET = 3056
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 26b51ea37df8e1d6f76fc3b66a7429b3
+
+
+COUNT = 15
+KEY = 0102030405060708
+OFFSET = 3072
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = bc7683205d4f443dc1f29dda3315c87b
+
+
+COUNT = 16
+KEY = 0102030405060708
+OFFSET = 4080
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = d5fa5a3469d29aaaf83d23589db8c85b
+
+
+COUNT = 17
+KEY = 0102030405060708
+OFFSET = 4096
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 3fb46e2c8f0f068edce8cdcd7dfc5862
+
+# key 2
+COUNT = 18
+KEY = 641910833222772a
+OFFSET = 0
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = bbf609de9413172d07660cb680716926
+
+
+COUNT = 19
+KEY = 641910833222772a
+OFFSET = 16
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 46101a6dab43115d6c522b4fe93604a9
+
+
+COUNT = 20
+KEY = 641910833222772a
+OFFSET = 240
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = cbe1fff21c96f3eef61e8fe0542cbdf0
+
+
+COUNT = 21
+KEY = 641910833222772a
+OFFSET = 256
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 347938bffa4009c512cfb4034b0dd1a7
+
+
+COUNT = 22
+KEY = 641910833222772a
+OFFSET = 496
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 7867a786d00a7147904d76ddf1e520e3
+
+
+COUNT = 23
+KEY = 641910833222772a
+OFFSET = 512
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 8d3e9e1caefcccb3fbf8d18f64120b32
+
+
+COUNT = 24
+KEY = 641910833222772a
+OFFSET = 752
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 942337f8fd76f0fae8c52d7954810672
+
+
+COUNT = 25
+KEY = 641910833222772a
+OFFSET = 768
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = b8548c10f51667f6e60e182fa19b30f7
+
+
+COUNT = 26
+KEY = 641910833222772a
+OFFSET = 1008
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 0211c7c6190c9efd1237c34c8f2e06c4
+
+
+COUNT = 27
+KEY = 641910833222772a
+OFFSET = 1024
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = bda64f65276d2aacb8f90212203a808e
+
+
+COUNT = 28
+KEY = 641910833222772a
+OFFSET = 1520
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = bd3820f732ffb53ec193e79d33e27c73
+
+
+COUNT = 29
+KEY = 641910833222772a
+OFFSET = 1536
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = d0168616861907d482e36cdac8cf5749
+
+
+COUNT = 30
+KEY = 641910833222772a
+OFFSET = 2032
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 97b0f0f224b2d2317114808fb03af7a0
+
+
+COUNT = 31
+KEY = 641910833222772a
+OFFSET = 2048
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = e59616e469787939a063ceea9af956d1
+
+
+COUNT = 32
+KEY = 641910833222772a
+OFFSET = 3056
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = c47e0dc1660919c11101208f9e69aa1f
+
+
+COUNT = 33
+KEY = 641910833222772a
+OFFSET = 3072
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 5ae4f12896b8379a2aad89b5b553d6b0
+
+
+COUNT = 34
+KEY = 641910833222772a
+OFFSET = 4080
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 6b6b098d0c293bc2993d80bf0518b6d9
+
+
+COUNT = 35
+KEY = 641910833222772a
+OFFSET = 4096
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 8170cc3ccd92a698621b939dd38fe7b9
diff --git a/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-80.txt b/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-80.txt
new file mode 100644
index 0000000..18a9efe
--- /dev/null
+++ b/tests/hazmat/primitives/vectors/ciphers/ARC4/rfc-6229-80.txt
@@ -0,0 +1,254 @@
+# Vectors from RFC 6229. Reformatted to work with the NIST loader
+[ENCRYPT]
+
+# 80-bit key
+COUNT = 0
+KEY = 0102030405060708090a
+OFFSET = 0
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = ede3b04643e586cc907dc21851709902
+
+
+COUNT = 1
+KEY = 0102030405060708090a
+OFFSET = 16
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 03516ba78f413beb223aa5d4d2df6711
+
+
+COUNT = 2
+KEY = 0102030405060708090a
+OFFSET = 240
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 3cfd6cb58ee0fdde640176ad0000044d
+
+
+COUNT = 3
+KEY = 0102030405060708090a
+OFFSET = 256
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 48532b21fb6079c9114c0ffd9c04a1ad
+
+
+COUNT = 4
+KEY = 0102030405060708090a
+OFFSET = 496
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 3e8cea98017109979084b1ef92f99d86
+
+
+COUNT = 5
+KEY = 0102030405060708090a
+OFFSET = 512
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = e20fb49bdb337ee48b8d8dc0f4afeffe
+
+
+COUNT = 6
+KEY = 0102030405060708090a
+OFFSET = 752
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 5c2521eacd7966f15e056544bea0d315
+
+
+COUNT = 7
+KEY = 0102030405060708090a
+OFFSET = 768
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = e067a7031931a246a6c3875d2f678acb
+
+
+COUNT = 8
+KEY = 0102030405060708090a
+OFFSET = 1008
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = a64f70af88ae56b6f87581c0e23e6b08
+
+
+COUNT = 9
+KEY = 0102030405060708090a
+OFFSET = 1024
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = f449031de312814ec6f319291f4a0516
+
+
+COUNT = 10
+KEY = 0102030405060708090a
+OFFSET = 1520
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = bdae85924b3cb1d0a2e33a30c6d79599
+
+
+COUNT = 11
+KEY = 0102030405060708090a
+OFFSET = 1536
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 8a0feddbac865a09bcd127fb562ed60a
+
+
+COUNT = 12
+KEY = 0102030405060708090a
+OFFSET = 2032
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = b55a0a5b51a12a8be34899c3e047511a
+
+
+COUNT = 13
+KEY = 0102030405060708090a
+OFFSET = 2048
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = d9a09cea3ce75fe39698070317a71339
+
+
+COUNT = 14
+KEY = 0102030405060708090a
+OFFSET = 3056
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 552225ed1177f44584ac8cfa6c4eb5fc
+
+
+COUNT = 15
+KEY = 0102030405060708090a
+OFFSET = 3072
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 7e82cbabfc95381b080998442129c2f8
+
+
+COUNT = 16
+KEY = 0102030405060708090a
+OFFSET = 4080
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 1f135ed14ce60a91369d2322bef25e3c
+
+
+COUNT = 17
+KEY = 0102030405060708090a
+OFFSET = 4096
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 08b6be45124a43e2eb77953f84dc8553
+
+# key 2
+COUNT = 18
+KEY = 8b37641910833222772a
+OFFSET = 0
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = ab65c26eddb287600db2fda10d1e605c
+
+
+COUNT = 19
+KEY = 8b37641910833222772a
+OFFSET = 16
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = bb759010c29658f2c72d93a2d16d2930
+
+
+COUNT = 20
+KEY = 8b37641910833222772a
+OFFSET = 240
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = b901e8036ed1c383cd3c4c4dd0a6ab05
+
+
+COUNT = 21
+KEY = 8b37641910833222772a
+OFFSET = 256
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 3d25ce4922924c55f064943353d78a6c
+
+
+COUNT = 22
+KEY = 8b37641910833222772a
+OFFSET = 496
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 12c1aa44bbf87e75e611f69b2c38f49b
+
+
+COUNT = 23
+KEY = 8b37641910833222772a
+OFFSET = 512
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 28f2b3434b65c09877470044c6ea170d
+
+
+COUNT = 24
+KEY = 8b37641910833222772a
+OFFSET = 752
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = bd9ef822de5288196134cf8af7839304
+
+
+COUNT = 25
+KEY = 8b37641910833222772a
+OFFSET = 768
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 67559c23f052158470a296f725735a32
+
+
+COUNT = 26
+KEY = 8b37641910833222772a
+OFFSET = 1008
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 8bab26fbc2c12b0f13e2ab185eabf241
+
+
+COUNT = 27
+KEY = 8b37641910833222772a
+OFFSET = 1024
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 31185a6d696f0cfa9b42808b38e132a2
+
+
+COUNT = 28
+KEY = 8b37641910833222772a
+OFFSET = 1520
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 564d3dae183c5234c8af1e51061c44b5
+
+
+COUNT = 29
+KEY = 8b37641910833222772a
+OFFSET = 1536
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 3c0778a7b5f72d3c23a3135c7d67b9f4
+
+
+COUNT = 30
+KEY = 8b37641910833222772a
+OFFSET = 2032
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = f34369890fcf16fb517dcaae4463b2dd
+
+
+COUNT = 31
+KEY = 8b37641910833222772a
+OFFSET = 2048
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 02f31c81e8200731b899b028e791bfa7
+
+
+COUNT = 32
+KEY = 8b37641910833222772a
+OFFSET = 3056
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 72da646283228c14300853701795616f
+
+
+COUNT = 33
+KEY = 8b37641910833222772a
+OFFSET = 3072
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 4e0a8c6f7934a788e2265e81d6d0c8f4
+
+
+COUNT = 34
+KEY = 8b37641910833222772a
+OFFSET = 4080
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 438dd5eafea0111b6f36b4b938da2a68
+
+
+COUNT = 35
+KEY = 8b37641910833222772a
+OFFSET = 4096
+PLAINTEXT = 00000000000000000000000000000000
+CIPHERTEXT = 5f6bfc73815874d97100f086979357d8