public static void KeyPairFromSeed(ArraySegment <byte> publicKey, ArraySegment <byte> expandedPrivateKey, ArraySegment <byte> privateKeySeed)
{
if (publicKey.Array == null)
{
throw new ArgumentNullException("publicKey.Array");
}
if (expandedPrivateKey.Array == null)
{
throw new ArgumentNullException("expandedPrivateKey.Array");
}
if (privateKeySeed.Array == null)
{
throw new ArgumentNullException("privateKeySeed.Array");
}
if (publicKey.Count != PublicKeySizeInBytes)
{
throw new ArgumentException("publicKey.Count");
}
if (expandedPrivateKey.Count != ExpandedPrivateKeySizeInBytes)
{
throw new ArgumentException("expandedPrivateKey.Count");
}
if (privateKeySeed.Count != PrivateKeySeedSizeInBytes)
{
throw new ArgumentException("privateKeySeed.Count");
}
Ed25519Operations.crypto_sign_keypair(
publicKey.Array, publicKey.Offset,
expandedPrivateKey.Array, expandedPrivateKey.Offset,
privateKeySeed.Array, privateKeySeed.Offset);
}
public static void KeyPairFromSeed(out byte[] publicKey, out byte[] expandedPrivateKey, byte[] privateKeySeed)
{
Throw.If(privateKeySeed == null, "privateKeySeed");
Throw.If(privateKeySeed.Length != PrivateKeySeedSizeInBytes, $"privateKeySeed length should be {PrivateKeySeedSizeInBytes}");
var pk = new byte[PublicKeySizeInBytes];
var sk = new byte[ExpandedPrivateKeySizeInBytes];
Ed25519Operations.crypto_sign_keypair(pk, 0, sk, 0, privateKeySeed, 0);
publicKey = pk;
expandedPrivateKey = sk;
}
