crypto/hkdf_sha256: new module.

[ccan] / ccan / crypto / hkdf_sha256 / test / api-rfc5869.c

diff --git a/ccan/crypto/hkdf_sha256/test/api-rfc5869.c b/ccan/crypto/hkdf_sha256/test/api-rfc5869.c
new file mode 100644 (file)
index 0000000..3e3bdbf
--- /dev/null
+++ b/ccan/crypto/hkdf_sha256/test/api-rfc5869.c
@@ -0,0 +1,101 @@
+/* From RFC5869 Appendix A
+ *
+ * https://tools.ietf.org/html/rfc5869
+ */
+#include <ccan/crypto/hkdf_sha256/hkdf_sha256.h>
+#include <ccan/tap/tap.h>
+#include <ccan/str/hex/hex.h>
+#include <string.h>
+#include <assert.h>
+
+struct test {
+       const char *ikm, *salt, *info, *okm;
+};
+
+static struct test tests[] = { {
+       /* Test Case 1
+          Basic test case with SHA-256
+       */
+       "0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b", /* (22 octets) */
+       "000102030405060708090a0b0c", /* (13 octets) */
+       "f0f1f2f3f4f5f6f7f8f9", /* (10 octets) */
+       "3cb25f25faacd57a90434f64d0362f2a2d2d0a90cf1a5a4c5db02d56ecc4c5bf34007208d5b887185865", /* (42 octets) */
+       },
+       {
+       /* Test Case 2
+        *
+        * Test with SHA-256 and longer inputs/outputs */
+       "000102030405060708090a0b0c0d0e0f"
+       "101112131415161718191a1b1c1d1e1f"
+       "202122232425262728292a2b2c2d2e2f"
+       "303132333435363738393a3b3c3d3e3f"
+       "404142434445464748494a4b4c4d4e4f", /* (80 octets) */
+       "606162636465666768696a6b6c6d6e6f"
+       "707172737475767778797a7b7c7d7e7f"
+       "808182838485868788898a8b8c8d8e8f"
+       "909192939495969798999a9b9c9d9e9f"
+       "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf", /* (80 octets )*/
+       "b0b1b2b3b4b5b6b7b8b9babbbcbdbebf"
+       "c0c1c2c3c4c5c6c7c8c9cacbcccdcecf"
+       "d0d1d2d3d4d5d6d7d8d9dadbdcdddedf"
+       "e0e1e2e3e4e5e6e7e8e9eaebecedeeef"
+       "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff", /* (80 octets) */
+       "b11e398dc80327a1c8e7f78c596a4934"
+       "4f012eda2d4efad8a050cc4c19afa97c"
+       "59045a99cac7827271cb41c65e590e09"
+       "da3275600c2f09b8367793a9aca3db71"
+       "cc30c58179ec3e87c14c01d5c1f3434f"
+       "1d87" /* (82 octets) */
+       },
+       {
+       /*  Test Case 3
+        *
+        * Test with SHA-256 and zero-length salt/info
+        */
+       "0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b", /* (22 octets) */
+       "", /* (0 octets) */
+       "", /* (0 octets) */
+       "8da4e775a563c18f715f802a063c5a31"
+       "b8a11f5c5ee1879ec3454e5f3c738d2d"
+       "9d201395faa4b61a96c8" /* (42 octets) */
+       }
+};
+
+static void *fromhex(const char *str, size_t *len)
+{
+       void *p;
+
+       *len = hex_data_size(strlen(str));
+       p = malloc(*len);
+       if (!hex_decode(str, strlen(str), p, *len))
+               abort();
+       return p;
+}
+
+int main(void)
+{
+       size_t i;
+
+       plan_tests(sizeof(tests) / sizeof(tests[0]));
+
+       for (i = 0; i < sizeof(tests) / sizeof(tests[0]); i++) {
+               size_t ksize, ssize, isize, okmsize;
+               void *k, *s, *info, *expect, *okm;
+
+               k = fromhex(tests[i].ikm, &ksize);
+               s = fromhex(tests[i].salt, &ssize);
+               info = fromhex(tests[i].info, &isize);
+               expect = fromhex(tests[i].okm, &okmsize);
+               okm = malloc(okmsize);
+               hkdf_sha256(okm, okmsize, s, ssize, k, ksize, info, isize);
+               ok1(memcmp(okm, expect, okmsize) == 0);
+
+               free(k);
+               free(s);
+               free(info);
+               free(expect);
+               free(okm);
+       }
+
+       return exit_status();
+}