crypto/sha256: new module.

[ccan] / ccan / crypto / sha256 / test / run-33-bit-test.c

diff --git a/ccan/crypto/sha256/test/run-33-bit-test.c b/ccan/crypto/sha256/test/run-33-bit-test.c
new file mode 100644 (file)
index 0000000..bde91e1
--- /dev/null
+++ b/ccan/crypto/sha256/test/run-33-bit-test.c
@@ -0,0 +1,54 @@
+#include <ccan/crypto/sha256/sha256.h>
+/* Include the C files directly. */
+#include <ccan/crypto/sha256/sha256.c>
+#include <ccan/tap/tap.h>
+#include <stdio.h>
+
+/* This is the test introduced for SHA-3, which checks for 33-bit overflow:
+   "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmno"
+   16777216 times.
+*/
+static uint32_t expected[] = {
+       CPU_TO_BE32(0x50e72a0e), CPU_TO_BE32(0x26442fe2),
+       CPU_TO_BE32(0x552dc393), CPU_TO_BE32(0x8ac58658),
+       CPU_TO_BE32(0x228c0cbf), CPU_TO_BE32(0xb1d2ca87),
+       CPU_TO_BE32(0x2ae43526), CPU_TO_BE32(0x6fcd055e)
+};
+
+/* Produced by actually running the code on x86. */
+static const struct sha256_ctx after_16M_by_64 = {
+#ifdef CCAN_CRYPTO_SHA256_USE_OPENSSL
+       { { LE32_TO_CPU(0x515e3215), LE32_TO_CPU(0x592f4ae0),
+           LE32_TO_CPU(0xd407a8fc), LE32_TO_CPU(0x1fad409b),
+           LE32_TO_CPU(0x51fa46cc), LE32_TO_CPU(0xea528ae5),
+           LE32_TO_CPU(0x5fa58ebb), LE32_TO_CPU(0x8be97931) },
+         0x0, 0x2,
+         { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+         0x0, 0x20 }
+#else
+       { LE32_TO_CPU(0x515e3215), LE32_TO_CPU(0x592f4ae0),
+         LE32_TO_CPU(0xd407a8fc), LE32_TO_CPU(0x1fad409b),
+         LE32_TO_CPU(0x51fa46cc), LE32_TO_CPU(0xea528ae5),
+         LE32_TO_CPU(0x5fa58ebb), LE32_TO_CPU(0x8be97931) },
+       1073741824,
+       { .u32 = { 0x64636261, 0x68676665, 0x65646362, 0x69686766,
+                  0x66656463, 0x6a696867, 0x67666564, 0x6b6a6968 } }
+#endif
+};
+
+int main(void)
+{
+       struct sha256 h;
+       struct sha256_ctx ctx;
+
+       /* This is how many tests you plan to run */
+       plan_tests(1);
+
+       ctx = after_16M_by_64;
+       sha256_done(&ctx, &h);
+
+       ok1(memcmp(&h.u, expected, sizeof(expected)) == 0);
+
+       /* This exits depending on whether all tests passed */
+       return exit_status();
+}