For passhash9, add another interface that allows the caller to specify

which PRF they want to use. The old interface just calls this new
version with alg_id set to 0 which is HMAC(SHA-1), which was
previously the only supported PRF.

Assign new codepoints for HMAC(SHA-256) and CMAC(Blowfish) to allow
their use with passhash9.

Have the generate+check tests run a test for each supported PRF.

1 files changed, 9 insertions, 4 deletions

diff --git a/checks/validate.cpp b/checks/validate.cpp
index 68035f293..6e7a2e553 100644
--- a/checks/validate.cpp
+++ b/checks/validate.cpp
@@ -71,12 +71,17 @@ bool test_passhash(RandomNumberGenerator& rng)
 
    std::cout << "." << std::flush;
 
-   std::string gen_hash = generate_passhash9(input, rng, 5);
+   for(byte alg_id = 0; alg_id <= 2; ++alg_id)
+      {
+      std::string gen_hash = generate_passhash9(input, alg_id, rng, 1);
 
-   if(!check_passhash9(input, gen_hash))
-      return false;
+      if(!check_passhash9(input, gen_hash))
+         return false;
+
+      std::cout << "." << std::flush;
+      }
 
-   std::cout << "." << std::endl;;
+   std::cout << std::endl;
 
 #endif