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-rw-r--r--src/rw.cpp10
1 files changed, 6 insertions, 4 deletions
diff --git a/src/rw.cpp b/src/rw.cpp
index 758a95a04..425ab83b3 100644
--- a/src/rw.cpp
+++ b/src/rw.cpp
@@ -52,17 +52,19 @@ SecureVector<byte> RW_PublicKey::verify(const byte in[], u32bit len) const
/*************************************************
* Create a Rabin-Williams private key *
*************************************************/
-RW_PrivateKey::RW_PrivateKey(u32bit bits, u32bit exp)
+RW_PrivateKey::RW_PrivateKey(u32bit bits,
+ RandomNumberGenerator& rng,
+ u32bit exp)
{
- if(bits < 512)
+ if(bits < 1024)
throw Invalid_Argument(algo_name() + ": Can't make a key that is only " +
to_string(bits) + " bits long");
if(exp < 2 || exp % 2 == 1)
throw Invalid_Argument(algo_name() + ": Invalid encryption exponent");
e = exp;
- p = random_prime((bits + 1) / 2, e / 2, 3, 4);
- q = random_prime(bits - p.bits(), e / 2, ((p % 8 == 3) ? 7 : 3), 8);
+ p = random_prime(rng, (bits + 1) / 2, e / 2, 3, 4);
+ q = random_prime(rng, bits - p.bits(), e / 2, ((p % 8 == 3) ? 7 : 3), 8);
d = inverse_mod(e, lcm(p - 1, q - 1) >> 1);
PKCS8_load_hook(true);