public static bool DoVerifyEcDsaSha256P256_old(IEnumerable <BufLen> bufs, I2PSigningPublicKey key, I2PSignature signed)
{
if (!SupportedSignatureType(signed.Certificate.SignatureType))
{
throw new NotImplementedException();
}
var sha = new Sha256Digest();
foreach (var buf in bufs)
{
sha.BlockUpdate(buf.BaseArray, buf.BaseArrayOffset, buf.Length);
}
var hash = new byte[sha.GetDigestSize()];
sha.DoFinal(hash, 0);
var p = Org.BouncyCastle.Asn1.Nist.NistNamedCurves.GetByName("P-256");
var param = new ECDomainParameters(p.Curve, p.G, p.N, p.H);
var pk = new ECPublicKeyParameters(p.Curve.DecodePoint(key.ToByteArray()), param);
var dsa = new Org.BouncyCastle.Crypto.Signers.DsaSigner();
var sigsize = signed.Certificate.SignatureLength;
var r = new BigInteger(1, signed.Sig.BaseArray, signed.Sig.BaseArrayOffset + 0, sigsize / 2);
var s = new BigInteger(1, signed.Sig.BaseArray, signed.Sig.BaseArrayOffset + sigsize / 2, sigsize / 2);
dsa.Init(false, pk);
var result = dsa.VerifySignature(hash, r, s);
DebugUtils.LogDebug("DoVerifyEcDsaSha256P256: " + result.ToString());
return(result);
}
public static bool DoVerifyEcDsa(
IEnumerable <BufLen> bufs,
I2PSigningPublicKey key,
I2PSignature signed,
IDigest digest,
X9ECParameters ecparam)
{
if (!SupportedSignatureType(signed.Certificate.SignatureType))
{
throw new NotImplementedException();
}
foreach (var buf in bufs)
{
digest.BlockUpdate(buf.BaseArray, buf.BaseArrayOffset, buf.Length);
}
var hash = new byte[digest.GetDigestSize()];
digest.DoFinal(hash, 0);
var param = new ECDomainParameters(ecparam.Curve, ecparam.G, ecparam.N, ecparam.H);
var pk = new ECPublicKeyParameters(ecparam.Curve.DecodePoint(key.ToByteArray()), param);
var dsa = new Org.BouncyCastle.Crypto.Signers.DsaSigner();
var sigsize = signed.Certificate.SignatureLength;
var r = new BigInteger(1, signed.Sig.BaseArray, signed.Sig.BaseArrayOffset, sigsize / 2);
var s = new BigInteger(1, signed.Sig.BaseArray, signed.Sig.BaseArrayOffset + sigsize / 2, sigsize / 2);
dsa.Init(false, pk);
var result = dsa.VerifySignature(hash, r, s);
DebugUtils.LogDebug("DoVerifyEcDsa: " + result.ToString() + ": " + digest.ToString());
return(result);
}
public static bool DoVerify(I2PSigningPublicKey key, I2PSignature signed, params BufLen[] bufs)
{
//DebugUtils.LogDebug( "DoVerify: " + key.Certificate.SignatureType.ToString() );
switch (key.Certificate.SignatureType)
{
case I2PSigningKey.SigningKeyTypes.DSA_SHA1:
return(DoVerifyDsaSha1(bufs, key, signed));
case I2PSigningKey.SigningKeyTypes.ECDSA_SHA256_P256:
return(DoVerifyEcDsa(bufs, key, signed, new Sha256Digest(), NistNamedCurves.GetByName("P-256")));
case I2PSigningKey.SigningKeyTypes.ECDSA_SHA384_P384:
return(DoVerifyEcDsa(bufs, key, signed, new Sha384Digest(), NistNamedCurves.GetByName("P-384")));
case I2PSigningKey.SigningKeyTypes.ECDSA_SHA512_P521:
return(DoVerifyEcDsa(bufs, key, signed, new Sha512Digest(), NistNamedCurves.GetByName("P-521")));
case I2PSigningKey.SigningKeyTypes.EdDSA_SHA512_Ed25519:
return(DoVerifyEdDSASHA512Ed25519(bufs, key, signed));
default:
throw new NotImplementedException();
}
}
public static bool DoVerifyDsaSha1(IEnumerable <BufLen> bufs, I2PSigningPublicKey key, I2PSignature signed)
{
if (!SupportedSignatureType(signed.Certificate.SignatureType))
{
throw new NotImplementedException();
}
var sha = new Sha1Digest();
foreach (var buf in bufs)
{
sha.BlockUpdate(buf.BaseArray, buf.BaseArrayOffset, buf.Length);
}
var hash = new byte[sha.GetDigestSize()];
sha.DoFinal(hash, 0);
var dsa = new Org.BouncyCastle.Crypto.Signers.DsaSigner();
var sigsize = signed.Certificate.SignatureLength;
var r = new BigInteger(1, signed.Sig.BaseArray, signed.Sig.BaseArrayOffset + 0, sigsize / 2);
var s = new BigInteger(1, signed.Sig.BaseArray, signed.Sig.BaseArrayOffset + sigsize / 2, sigsize / 2);
var dsaparams =
new DsaPublicKeyParameters(
key.ToBigInteger(),
new DsaParameters(
I2PConstants.DsaP,
I2PConstants.DsaQ,
I2PConstants.DsaG));
dsa.Init(false, dsaparams);
return(dsa.VerifySignature(hash, r, s));
}
public I2PLeaseInfo(I2PDestinationInfo di)
{
PublicKey = di.Destination.PublicKey;
PrivateKey = di.PrivateKey;
PrivateSigningKey = di.PrivateSigningKey;
PublicSigningKey = di.Destination.SigningPublicKey;
}
public I2PDestinationInfo(BufRef reader)
{
Certificate = new I2PCertificate(reader);
PrivateKey = new I2PPrivateKey(reader, Certificate);
PublicKey = new I2PPublicKey(reader, Certificate);
PrivateSigningKey = new I2PSigningPrivateKey(reader, Certificate);
PublicSigningKey = new I2PSigningPublicKey(reader, Certificate);
}
public I2PKeysAndCert(I2PPublicKey pubkey, I2PSigningPublicKey signkey)
{
Data = new BufLen(new byte[RecordSize(signkey.Certificate)]);
Data.Randomize();
Certificate = signkey.Certificate;
PublicKey = pubkey;
SigningPublicKey = signkey;
}
public static bool DoVerifyEdDSASHA512Ed25519(IEnumerable <BufLen> bufs, I2PSigningPublicKey key, I2PSignature signed)
{
return(Chaos.NaCl.Ed25519.Verify(
signed.Sig.ToByteArray(),
bufs.SelectMany(b =>
b
.ToByteArray())
.ToArray(),
key.ToByteArray()));
}
public I2PDestinationInfo(string base64)
{
var reader = new BufRefLen(FreenetBase64.Decode(base64));
Certificate = new I2PCertificate(reader);
PrivateKey = new I2PPrivateKey(reader, Certificate);
PublicKey = new I2PPublicKey(reader, Certificate);
PrivateSigningKey = new I2PSigningPrivateKey(reader, Certificate);
PublicSigningKey = new I2PSigningPublicKey(reader, Certificate);
}
public I2PLeaseInfo(
I2PPublicKey pubkey,
I2PSigningPublicKey spubkey,
I2PPrivateKey privkey,
I2PSigningPrivateKey sprivkey)
{
PublicKey = pubkey;
PrivateKey = privkey;
PrivateSigningKey = sprivkey;
PublicSigningKey = spubkey;
}
public I2PDestinationInfo(I2PSigningKey.SigningKeyTypes signkeytype)
{
Certificate = new I2PCertificate(signkeytype);
var keys = I2PPrivateKey.GetNewKeyPair();
PublicKey = keys.PublicKey;
PrivateKey = keys.PrivateKey;
PrivateSigningKey = new I2PSigningPrivateKey(Certificate);
PublicSigningKey = new I2PSigningPublicKey(PrivateSigningKey);
}
public I2PLeaseSet(I2PKeysAndCert dest, IEnumerable <I2PLease> leases, I2PLeaseInfo info)
{
Destination = dest;
Leases = new List <I2PLease>();
if (leases != null)
{
Leases.AddRange(leases);
}
Info = info;
PublicKey = info.PublicKey;
PublicSigningKey = info.PublicSigningKey;
}
public I2PDestinationInfo(
I2PCertificate cert,
I2PPublicKey pubkey,
I2PSigningPublicKey spubkey,
I2PPrivateKey privkey,
I2PSigningPrivateKey sprivkey)
{
Certificate = cert;
PublicKey = pubkey;
PrivateKey = privkey;
PrivateSigningKey = sprivkey;
PublicSigningKey = spubkey;
}
public I2PLeaseSet(BufRef reader)
{
Destination = new I2PDestination(reader);
PublicKey = new I2PPublicKey(reader, I2PKeyType.DefaultAsymetricKeyCert);
PublicSigningKey = new I2PSigningPublicKey(reader, Destination.Certificate);
var leases = new List <I2PLease>();
int leasecount = reader.Read8();
for (int i = 0; i < leasecount; ++i)
{
leases.Add(new I2PLease(reader));
}
Leases = leases;
Signature = new I2PSignature(reader, Destination.Certificate);
}
public I2PRouterIdentity(I2PPublicKey pubkey, I2PSigningPublicKey signkey) : base(pubkey, signkey)
{
}
public I2PDestination(I2PPublicKey pubkey, I2PSigningPublicKey signkey) : base(pubkey, signkey)
{
}