diff --git a/CHANGELOG.md b/CHANGELOG.md
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--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,5 @@
+# Revision history for tasty-test-vector
+
+## 0 -- 2018-12-18
+
+* First version.
diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,30 @@
+Copyright (c) 2018, davean
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of davean nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/Setup.hs b/Setup.hs
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+++ b/Setup.hs
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+import Distribution.Simple
+main = defaultMain
diff --git a/src/Test/Tasty/TestVector.hs b/src/Test/Tasty/TestVector.hs
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+++ b/src/Test/Tasty/TestVector.hs
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+{-# LANGUAGE ExistentialQuantification #-}
+
+-- | Test vector support for tasty.
+
+module Test.Tasty.TestVector (
+    testVectors
+  ) where
+
+import Data.Bifunctor
+import Data.List (intercalate, partition)
+import Test.Tasty.Providers
+import Data.Typeable
+import Text.Printf
+
+data TV =
+    forall a b . Show a => TV (a -> b -> Bool) [(a, b)]
+  deriving Typeable
+
+-- | Turn a function and a list of parameters for it into a single tasty test.
+--
+--   Any specific failing test vectors are reported individually by showing the
+--   first part of the test vector tuple.
+testVectors :: Show a => TestName -> (a -> b -> Bool) -> [(a, b)] -> TestTree
+testVectors name f vs = singleTest name $ TV f vs
+
+instance IsTest TV where
+    testOptions = pure mempty
+    run _opts (TV f vs) _yieldProgress = do
+      let failed = map fst . filter (not.uncurry f) $ vs
+      pure $ if null failed
+             then testPassed $ printf "+++ OK, passed %d test vectors." (length vs)
+             else testFailed $
+                  printf "*** FAILED! Failed %d/%d tests, failed on:\n%s"
+                  (length failed) (length vs) $
+                  intercalate "\n" $
+                  map show failed
diff --git a/tasty-test-vector.cabal b/tasty-test-vector.cabal
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--- /dev/null
+++ b/tasty-test-vector.cabal
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+cabal-version:       2.2
+
+name:                tasty-test-vector
+version:             0
+synopsis:            Test vector support for tasty.
+description:
+  Many specifications provide test vectors for their algorithms, particularly
+  specifications for cryptographic primatives. These are like QuickCheck properties
+  in that they provide some function input and check the output, but unlike QuickCheck
+  the inputs and expected results are predefined.
+  .
+  This library provides an interface for cleanly integrating such test vectors into
+  the 'tasty' test framework.
+homepage:            https://oss.xkcd.com/
+bug-reports:         https://code.xkrd.net/haskell/tasty-test-vector/issues
+license:             BSD-3-Clause
+license-file:        LICENSE
+author:              davean
+maintainer:          oss@xkcd.com
+copyright:           Copyright (C) 2018 davean
+category:            Testing
+extra-source-files:  CHANGELOG.md
+
+source-repository head
+  type: git
+  location: https://code.xkrd.net/haskell/tasty-test-vector.git
+
+library
+  default-language:    Haskell2010
+  hs-source-dirs:      src
+  exposed-modules:
+    Test.Tasty.TestVector
+  build-depends:
+      base ^>=4.12.0.0
+    , tasty ^>=1.2