diff options
Diffstat (limited to 'crypto/src/pqc/crypto/sphincsplus/SPHINCSPlusKeyPairGenerator.cs')
| -rw-r--r-- | crypto/src/pqc/crypto/sphincsplus/SPHINCSPlusKeyPairGenerator.cs | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/crypto/src/pqc/crypto/sphincsplus/SPHINCSPlusKeyPairGenerator.cs b/crypto/src/pqc/crypto/sphincsplus/SPHINCSPlusKeyPairGenerator.cs index 9e5724027..dbb93a812 100644 --- a/crypto/src/pqc/crypto/sphincsplus/SPHINCSPlusKeyPairGenerator.cs +++ b/crypto/src/pqc/crypto/sphincsplus/SPHINCSPlusKeyPairGenerator.cs @@ -1,6 +1,8 @@ +using System; using Org.BouncyCastle.Crypto; using Org.BouncyCastle.Security; +using static Org.BouncyCastle.Pqc.Crypto.SphincsPlus.SPHINCSPlusEngine; namespace Org.BouncyCastle.Pqc.Crypto.SphincsPlus { @@ -13,15 +15,33 @@ namespace Org.BouncyCastle.Pqc.Crypto.SphincsPlus public void Init(KeyGenerationParameters param) { random = param.Random; - parameters = ((SPHINCSPlusKeyGenerationParameters) param).Parameters; + parameters = ((SPHINCSPlusKeyGenerationParameters)param).Parameters; } public AsymmetricCipherKeyPair GenerateKeyPair() { SPHINCSPlusEngine engine = parameters.GetEngine(); - - SK sk = new SK(SecRand(engine.N), SecRand(engine.N)); - byte[] pkSeed = SecRand(engine.N); + byte[] pkSeed; + SK sk; + + if (engine is SPHINCSPlusEngine.HarakaSEngine) + { + // required to pass kat tests + byte[] tmparray = SecRand(engine.N * 3); + byte[] skseed = new byte[engine.N]; + byte[] skprf = new byte[engine.N]; + pkSeed = new byte[engine.N]; + Array.Copy(tmparray, 0, skseed, 0, engine.N); + Array.Copy(tmparray, engine.N, skprf, 0, engine.N); + Array.Copy(tmparray, engine.N << 1, pkSeed, 0, engine.N); + sk = new SK(skseed, skprf); + } + else + { + sk = new SK(SecRand(engine.N), SecRand(engine.N)); + pkSeed = SecRand(engine.N); + } + engine.init(pkSeed); // TODO PK pk = new PK(pkSeed, new HT(engine, sk.seed, pkSeed).HTPubKey); |