Keypair::check_key no longer references global PRNG

6 files changed, 28 insertions, 16 deletions

diff --git a/src/dsa.cpp b/src/dsa.cpp
index 1a61c0cd2..1d755e045 100644
--- a/src/dsa.cpp
+++ b/src/dsa.cpp
@@ -120,8 +120,10 @@ bool DSA_PrivateKey::check_key(RandomNumberGenerator& rng, bool strong) const
    if(!strong)
       return true;
 
-   try {
-      KeyPair::check_key(get_pk_signer(*this, "EMSA1(SHA-1)"),
+   try
+      {
+      KeyPair::check_key(rng,
+                         get_pk_signer(*this, "EMSA1(SHA-1)"),
                          get_pk_verifier(*this, "EMSA1(SHA-1)")
          );
       }
diff --git a/src/elgamal.cpp b/src/elgamal.cpp
index 133fdae68..b815dd396 100644
--- a/src/elgamal.cpp
+++ b/src/elgamal.cpp
@@ -112,8 +112,10 @@ bool ElGamal_PrivateKey::check_key(RandomNumberGenerator& rng, bool strong) cons
    if(!strong)
       return true;
 
-   try {
-      KeyPair::check_key(get_pk_encryptor(*this, "EME1(SHA-1)"),
+   try
+      {
+      KeyPair::check_key(rng,
+                         get_pk_encryptor(*this, "EME1(SHA-1)"),
                          get_pk_decryptor(*this, "EME1(SHA-1)")
          );
       }
diff --git a/src/keypair.cpp b/src/keypair.cpp
index edec0b572..e16656dbc 100644
--- a/src/keypair.cpp
+++ b/src/keypair.cpp
@@ -5,7 +5,6 @@
 
 #include <botan/keypair.h>
 #include <botan/look_pk.h>
-#include <botan/libstate.h>
 #include <memory>
 
 namespace Botan {
@@ -15,7 +14,8 @@ namespace KeyPair {
 /*************************************************
 * Check an encryption key pair for consistency   *
 *************************************************/
-void check_key(PK_Encryptor* encryptor, PK_Decryptor* decryptor)
+void check_key(RandomNumberGenerator& rng,
+               PK_Encryptor* encryptor, PK_Decryptor* decryptor)
    {
    if(encryptor->maximum_input_size() == 0)
       return;
@@ -24,7 +24,7 @@ void check_key(PK_Encryptor* encryptor, PK_Decryptor* decryptor)
    std::auto_ptr<PK_Decryptor> dec(decryptor);
 
    SecureVector<byte> message(enc->maximum_input_size() - 1);
-   global_state().randomize(message, message.size());
+   rng.randomize(message, message.size());
 
    SecureVector<byte> ciphertext = enc->encrypt(message);
    if(ciphertext == message)
@@ -38,13 +38,14 @@ void check_key(PK_Encryptor* encryptor, PK_Decryptor* decryptor)
 /*************************************************
 * Check a signature key pair for consistency     *
 *************************************************/
-void check_key(PK_Signer* signer, PK_Verifier* verifier)
+void check_key(RandomNumberGenerator& rng,
+               PK_Signer* signer, PK_Verifier* verifier)
    {
    std::auto_ptr<PK_Signer> sig(signer);
    std::auto_ptr<PK_Verifier> ver(verifier);
 
    SecureVector<byte> message(16);
-   global_state().randomize(message, message.size());
+   rng.randomize(message, message.size());
 
    SecureVector<byte> signature;
 
diff --git a/src/nr.cpp b/src/nr.cpp
index 7e76d67ad..0acbd0bb0 100644
--- a/src/nr.cpp
+++ b/src/nr.cpp
@@ -119,8 +119,10 @@ bool NR_PrivateKey::check_key(RandomNumberGenerator& rng, bool strong) const
    if(!strong)
       return true;
 
-   try {
-      KeyPair::check_key(get_pk_signer(*this, "EMSA1(SHA-1)"),
+   try
+      {
+      KeyPair::check_key(rng,
+                         get_pk_signer(*this, "EMSA1(SHA-1)"),
                          get_pk_verifier(*this, "EMSA1(SHA-1)")
          );
       }
diff --git a/src/rsa.cpp b/src/rsa.cpp
index 75789fc10..574eca2da 100644
--- a/src/rsa.cpp
+++ b/src/rsa.cpp
@@ -136,12 +136,15 @@ bool RSA_PrivateKey::check_key(RandomNumberGenerator& rng, bool strong) const
    if((e * d) % lcm(p - 1, q - 1) != 1)
       return false;
 
-   try {
-      KeyPair::check_key(get_pk_encryptor(*this, "EME1(SHA-1)"),
+   try
+      {
+      KeyPair::check_key(rng,
+                         get_pk_encryptor(*this, "EME1(SHA-1)"),
                          get_pk_decryptor(*this, "EME1(SHA-1)")
          );
 
-      KeyPair::check_key(get_pk_signer(*this, "EMSA4(SHA-1)"),
+      KeyPair::check_key(rng,
+                         get_pk_signer(*this, "EMSA4(SHA-1)"),
                          get_pk_verifier(*this, "EMSA4(SHA-1)")
          );
       }
diff --git a/src/rw.cpp b/src/rw.cpp
index 35e3bbf8d..4da0cdede 100644
--- a/src/rw.cpp
+++ b/src/rw.cpp
@@ -126,8 +126,10 @@ bool RW_PrivateKey::check_key(RandomNumberGenerator& rng, bool strong) const
    if((e * d) % (lcm(p - 1, q - 1) / 2) != 1)
       return false;
 
-   try {
-      KeyPair::check_key(get_pk_signer(*this, "EMSA2(SHA-1)"),
+   try
+      {
+      KeyPair::check_key(rng,
+                         get_pk_signer(*this, "EMSA2(SHA-1)"),
                          get_pk_verifier(*this, "EMSA2(SHA-1)")
          );
       }