/**
* Extract a PgpPrivate key from the SecretKey's encrypted contents.
*
* @param decryptorFactory factory to use to generate a decryptor for the passed in secretKey.
* @return PgpPrivateKey the unencrypted private key.
* @throws PgpException on failure.
*/
public PgpPrivateKey ExtractPrivateKey(
IPbeSecretKeyDecryptorProvider decryptorProvider)
{
if (IsPrivateKeyEmpty)
{
return(null);
}
PublicKeyPacket pubPk = secret.PublicKeyPacket;
try
{
byte[] data = extractKeyData(decryptorProvider);
BcpgInputStream input = BcpgInputStream.Wrap(new MemoryInputStream(data));
switch (pubPk.Algorithm)
{
case PublicKeyAlgorithmTag.RsaEncrypt:
case PublicKeyAlgorithmTag.RsaGeneral:
case PublicKeyAlgorithmTag.RsaSign:
RsaSecretBcpgKey rsaPriv = new RsaSecretBcpgKey(input);
return(new PgpPrivateKey(this.KeyId, pubPk, rsaPriv));
case PublicKeyAlgorithmTag.Dsa:
DsaSecretBcpgKey dsaPriv = new DsaSecretBcpgKey(input);
return(new PgpPrivateKey(this.KeyId, pubPk, dsaPriv));
case PublicKeyAlgorithmTag.ElGamalEncrypt:
case PublicKeyAlgorithmTag.ElGamalGeneral:
ElGamalSecretBcpgKey elPriv = new ElGamalSecretBcpgKey(input);
return(new PgpPrivateKey(this.KeyId, pubPk, elPriv));
case PublicKeyAlgorithmTag.ECDH:
case PublicKeyAlgorithmTag.ECDsa:
ECSecretBcpgKey ecPriv = new ECSecretBcpgKey(input);
return(new PgpPrivateKey(this.KeyId, pubPk, ecPriv));
default:
throw new PgpException("unknown public key algorithm encountered");
}
}
catch (PgpException e)
{
throw e;
}
catch (Exception e)
{
throw new PgpException("Exception constructing key", e);
}
}
public ISignatureWithDigestFactory <PgpSignatureIdentifier> Build(PgpPrivateKey privateKey)
{
RsaSecretBcpgKey rsaKey = privateKey.Key as RsaSecretBcpgKey;
if (rsaKey != null)
{
RsaPublicBcpgKey pubKey = (RsaPublicBcpgKey)privateKey.PublicKeyPacket.Key;
return(Build(privateKey.KeyId, new AsymmetricRsaPrivateKey(FipsRsa.Alg, rsaKey.Modulus, pubKey.PublicExponent, rsaKey.PrivateExponent, rsaKey.PrimeP, rsaKey.PrimeQ, rsaKey.PrimeExponentP, rsaKey.PrimeExponentQ, rsaKey.CrtCoefficient)));
}
throw new ArgumentException("unknown key algorithm");
}
/// <summary>
/// Extract a <c>PgpPrivateKey</c> from this secret key's encrypted contents.
/// </summary>
/// <param name="passPhrase"></param>
/// <returns></returns>
/// <exception cref="PgpException">
/// unknown public key algorithm encountered
/// or
/// Exception constructing key
/// </exception>
public IPgpPrivateKey ExtractPrivateKey(char[] passPhrase)
{
var secKeyData = _secret.GetSecretKeyData();
if (secKeyData == null || secKeyData.Length < 1)
return null;
var pubPk = _secret.PublicKeyPacket;
try
{
var data = ExtractKeyData(passPhrase);
using (var memory = new MemoryStream(data, false))
{
using (var bcpgIn = BcpgInputStream.Wrap(memory))
{
IAsymmetricKeyParameter privateKey;
switch (pubPk.Algorithm)
{
case PublicKeyAlgorithmTag.RsaEncrypt:
case PublicKeyAlgorithmTag.RsaGeneral:
case PublicKeyAlgorithmTag.RsaSign:
var rsaPub = (RsaPublicBcpgKey)pubPk.Key;
var rsaPriv = new RsaSecretBcpgKey(bcpgIn);
var rsaPrivSpec = new RsaPrivateCrtKeyParameters(
rsaPriv.Modulus,
rsaPub.PublicExponent,
rsaPriv.PrivateExponent,
rsaPriv.PrimeP,
rsaPriv.PrimeQ,
rsaPriv.PrimeExponentP,
rsaPriv.PrimeExponentQ,
rsaPriv.CrtCoefficient);
privateKey = rsaPrivSpec;
break;
case PublicKeyAlgorithmTag.Dsa:
var dsaPub = (DsaPublicBcpgKey)pubPk.Key;
var dsaPriv = new DsaSecretBcpgKey(bcpgIn);
var dsaParams = new DsaParameters(dsaPub.P, dsaPub.Q, dsaPub.G);
privateKey = new DsaPrivateKeyParameters(dsaPriv.X, dsaParams);
break;
case PublicKeyAlgorithmTag.ElGamalEncrypt:
case PublicKeyAlgorithmTag.ElGamalGeneral:
var elPub = (ElGamalPublicBcpgKey)pubPk.Key;
var elPriv = new ElGamalSecretBcpgKey(bcpgIn);
var elParams = new ElGamalParameters(elPub.P, elPub.G);
privateKey = new ElGamalPrivateKeyParameters(elPriv.X, elParams);
break;
case PublicKeyAlgorithmTag.Ecdh:
var ecdhPub = (ECDHPublicBcpgKey)pubPk.Key;
var ecdhPriv = new ECSecretBcpgKey(bcpgIn);
privateKey = new ECDHPrivateKeyParameters(ecdhPriv.X,
new ECDHPublicKeyParameters(ecdhPub.Point, ecdhPub.Oid, ecdhPub.HashAlgorithm, ecdhPub.SymmetricKeyAlgorithm),
PgpPublicKey.BuildFingerprint(pubPk));
break;
case PublicKeyAlgorithmTag.Ecdsa:
var ecdsaPub = (ECPublicBcpgKey)pubPk.Key;
var ecdsaPriv = new ECSecretBcpgKey(bcpgIn);
privateKey = new ECPrivateKeyParameters(pubPk.Algorithm.ToString(), ecdsaPriv.X, ecdsaPub.Oid);
break;
default:
throw new PgpException("unknown public key algorithm encountered");
}
return new PgpPrivateKey(privateKey, KeyId);
}
}
}
catch (PgpException)
{
throw;
}
catch (Exception e)
{
throw new PgpException("Exception constructing key", e);
}
}
internal PgpSecretKey(
PgpPrivateKey privKey,
PgpPublicKey pubKey,
SymmetricKeyAlgorithmTag encAlgorithm,
char[] passPhrase,
bool useSha1,
ISecureRandom rand,
bool isMasterKey)
{
BcpgObject secKey;
_pub = pubKey;
switch (pubKey.Algorithm)
{
case PublicKeyAlgorithmTag.RsaEncrypt:
case PublicKeyAlgorithmTag.RsaSign:
case PublicKeyAlgorithmTag.RsaGeneral:
var rsK = (RsaPrivateCrtKeyParameters)privKey.Key;
secKey = new RsaSecretBcpgKey(rsK.Exponent, rsK.P, rsK.Q);
break;
case PublicKeyAlgorithmTag.Dsa:
var dsK = (DsaPrivateKeyParameters)privKey.Key;
secKey = new DsaSecretBcpgKey(dsK.X);
break;
case PublicKeyAlgorithmTag.ElGamalEncrypt:
case PublicKeyAlgorithmTag.ElGamalGeneral:
var esK = (ElGamalPrivateKeyParameters)privKey.Key;
secKey = new ElGamalSecretBcpgKey(esK.X);
break;
case PublicKeyAlgorithmTag.Ecdh:
case PublicKeyAlgorithmTag.Ecdsa:
var ecK = (ECPrivateKeyParameters)privKey.Key;
secKey = new ECSecretBcpgKey(ecK.D);
break;
default:
throw new PgpException("unknown key class");
}
try
{
using (var bOut = new MemoryStream())
{
using (var pOut = new BcpgOutputStream(bOut))
{
pOut.WriteObject(secKey);
var keyData = bOut.ToArray();
var checksumBytes = Checksum(useSha1, keyData, keyData.Length);
pOut.Write(checksumBytes);
var bOutData = bOut.ToArray();
if (encAlgorithm == SymmetricKeyAlgorithmTag.Null)
{
this._secret = isMasterKey
? new SecretKeyPacket(_pub.PublicKeyPacket, encAlgorithm, null, null, bOutData)
: new SecretSubkeyPacket(_pub.PublicKeyPacket, encAlgorithm, null, null, bOutData);
}
else
{
S2k s2K;
byte[] iv;
var encData = EncryptKeyData(bOutData, encAlgorithm, passPhrase, rand, out s2K, out iv);
var s2KUsage = useSha1 ? SecretKeyPacket.UsageSha1 : SecretKeyPacket.UsageChecksum;
this._secret = isMasterKey
? new SecretKeyPacket(_pub.PublicKeyPacket, encAlgorithm, s2KUsage, s2K, iv, encData)
: new SecretSubkeyPacket(_pub.PublicKeyPacket, encAlgorithm, s2KUsage, s2K, iv, encData);
}
}
}
}
catch (PgpException)
{
throw;
}
catch (Exception e)
{
throw new PgpException("Exception encrypting key", e);
}
}
internal PgpPrivateKey DoExtractPrivateKey(byte[] rawPassPhrase, bool clearPassPhrase)
{
if (IsPrivateKeyEmpty)
return null;
PublicKeyPacket pubPk = secret.PublicKeyPacket;
try
{
byte[] data = ExtractKeyData(rawPassPhrase, clearPassPhrase);
BcpgInputStream bcpgIn = BcpgInputStream.Wrap(new MemoryStream(data, false));
AsymmetricKeyParameter privateKey;
switch (pubPk.Algorithm)
{
case PublicKeyAlgorithmTag.RsaEncrypt:
case PublicKeyAlgorithmTag.RsaGeneral:
case PublicKeyAlgorithmTag.RsaSign:
RsaPublicBcpgKey rsaPub = (RsaPublicBcpgKey)pubPk.Key;
RsaSecretBcpgKey rsaPriv = new RsaSecretBcpgKey(bcpgIn);
RsaPrivateCrtKeyParameters rsaPrivSpec = new RsaPrivateCrtKeyParameters(
rsaPriv.Modulus,
rsaPub.PublicExponent,
rsaPriv.PrivateExponent,
rsaPriv.PrimeP,
rsaPriv.PrimeQ,
rsaPriv.PrimeExponentP,
rsaPriv.PrimeExponentQ,
rsaPriv.CrtCoefficient);
privateKey = rsaPrivSpec;
break;
case PublicKeyAlgorithmTag.Dsa:
DsaPublicBcpgKey dsaPub = (DsaPublicBcpgKey)pubPk.Key;
DsaSecretBcpgKey dsaPriv = new DsaSecretBcpgKey(bcpgIn);
DsaParameters dsaParams = new DsaParameters(dsaPub.P, dsaPub.Q, dsaPub.G);
privateKey = new DsaPrivateKeyParameters(dsaPriv.X, dsaParams);
break;
case PublicKeyAlgorithmTag.ECDH:
privateKey = GetECKey("ECDH", bcpgIn);
break;
case PublicKeyAlgorithmTag.ECDsa:
privateKey = GetECKey("ECDSA", bcpgIn);
break;
case PublicKeyAlgorithmTag.ElGamalEncrypt:
case PublicKeyAlgorithmTag.ElGamalGeneral:
ElGamalPublicBcpgKey elPub = (ElGamalPublicBcpgKey)pubPk.Key;
ElGamalSecretBcpgKey elPriv = new ElGamalSecretBcpgKey(bcpgIn);
ElGamalParameters elParams = new ElGamalParameters(elPub.P, elPub.G);
privateKey = new ElGamalPrivateKeyParameters(elPriv.X, elParams);
break;
default:
throw new PgpException("unknown public key algorithm encountered");
}
return new PgpPrivateKey(KeyId, pubPk, privateKey);
}
catch (PgpException e)
{
throw e;
}
catch (Exception e)
{
throw new PgpException("Exception constructing key", e);
}
}
internal PgpSecretKey(
PgpPrivateKey privKey,
PgpPublicKey pubKey,
SymmetricKeyAlgorithmTag encAlgorithm,
byte[] rawPassPhrase,
bool clearPassPhrase,
bool useSha1,
SecureRandom rand,
bool isMasterKey)
{
BcpgObject secKey;
this.pub = pubKey;
switch (pubKey.Algorithm)
{
case PublicKeyAlgorithmTag.RsaEncrypt:
case PublicKeyAlgorithmTag.RsaSign:
case PublicKeyAlgorithmTag.RsaGeneral:
RsaPrivateCrtKeyParameters rsK = (RsaPrivateCrtKeyParameters) privKey.Key;
secKey = new RsaSecretBcpgKey(rsK.Exponent, rsK.P, rsK.Q);
break;
case PublicKeyAlgorithmTag.Dsa:
DsaPrivateKeyParameters dsK = (DsaPrivateKeyParameters) privKey.Key;
secKey = new DsaSecretBcpgKey(dsK.X);
break;
case PublicKeyAlgorithmTag.ECDH:
case PublicKeyAlgorithmTag.ECDsa:
ECPrivateKeyParameters ecK = (ECPrivateKeyParameters)privKey.Key;
secKey = new ECSecretBcpgKey(ecK.D);
break;
case PublicKeyAlgorithmTag.ElGamalEncrypt:
case PublicKeyAlgorithmTag.ElGamalGeneral:
ElGamalPrivateKeyParameters esK = (ElGamalPrivateKeyParameters) privKey.Key;
secKey = new ElGamalSecretBcpgKey(esK.X);
break;
default:
throw new PgpException("unknown key class");
}
try
{
MemoryStream bOut = new MemoryStream();
BcpgOutputStream pOut = new BcpgOutputStream(bOut);
pOut.WriteObject(secKey);
byte[] keyData = bOut.ToArray();
byte[] checksumData = Checksum(useSha1, keyData, keyData.Length);
keyData = Arrays.Concatenate(keyData, checksumData);
if (encAlgorithm == SymmetricKeyAlgorithmTag.Null)
{
if (isMasterKey)
{
this.secret = new SecretKeyPacket(pub.publicPk, encAlgorithm, null, null, keyData);
}
else
{
this.secret = new SecretSubkeyPacket(pub.publicPk, encAlgorithm, null, null, keyData);
}
}
else
{
S2k s2k;
byte[] iv;
byte[] encData;
if (pub.Version >= 4)
{
encData = EncryptKeyDataV4(keyData, encAlgorithm, HashAlgorithmTag.Sha1, rawPassPhrase, clearPassPhrase, rand, out s2k, out iv);
}
else
{
encData = EncryptKeyDataV3(keyData, encAlgorithm, rawPassPhrase, clearPassPhrase, rand, out s2k, out iv);
}
int s2kUsage = useSha1
? SecretKeyPacket.UsageSha1
: SecretKeyPacket.UsageChecksum;
if (isMasterKey)
{
this.secret = new SecretKeyPacket(pub.publicPk, encAlgorithm, s2kUsage, s2k, iv, encData);
}
else
{
this.secret = new SecretSubkeyPacket(pub.publicPk, encAlgorithm, s2kUsage, s2k, iv, encData);
}
}
}
catch (PgpException e)
{
throw e;
}
catch (Exception e)
{
throw new PgpException("Exception encrypting key", e);
}
}
/// <summary>Extract a <c>PgpPrivateKey</c> from this secret key's encrypted contents.</summary>
public PgpPrivateKey ExtractPrivateKey(
char[] passPhrase)
{
if (IsPrivateKeyEmpty)
{
return(null);
}
PublicKeyPacket pubPk = secret.PublicKeyPacket;
try
{
byte[] data = ExtractKeyData(passPhrase);
BcpgInputStream bcpgIn = BcpgInputStream.Wrap(new MemoryStream(data, false));
AsymmetricKeyParameter privateKey;
switch (pubPk.Algorithm)
{
case PublicKeyAlgorithmTag.RsaEncrypt:
case PublicKeyAlgorithmTag.RsaGeneral:
case PublicKeyAlgorithmTag.RsaSign:
RsaPublicBcpgKey rsaPub = (RsaPublicBcpgKey)pubPk.Key;
RsaSecretBcpgKey rsaPriv = new RsaSecretBcpgKey(bcpgIn);
RsaPrivateCrtKeyParameters rsaPrivSpec = new RsaPrivateCrtKeyParameters(
rsaPriv.Modulus,
rsaPub.PublicExponent,
rsaPriv.PrivateExponent,
rsaPriv.PrimeP,
rsaPriv.PrimeQ,
rsaPriv.PrimeExponentP,
rsaPriv.PrimeExponentQ,
rsaPriv.CrtCoefficient);
privateKey = rsaPrivSpec;
break;
case PublicKeyAlgorithmTag.Dsa:
DsaPublicBcpgKey dsaPub = (DsaPublicBcpgKey)pubPk.Key;
DsaSecretBcpgKey dsaPriv = new DsaSecretBcpgKey(bcpgIn);
DsaParameters dsaParams = new DsaParameters(dsaPub.P, dsaPub.Q, dsaPub.G);
privateKey = new DsaPrivateKeyParameters(dsaPriv.X, dsaParams);
break;
case PublicKeyAlgorithmTag.ElGamalEncrypt:
case PublicKeyAlgorithmTag.ElGamalGeneral:
ElGamalPublicBcpgKey elPub = (ElGamalPublicBcpgKey)pubPk.Key;
ElGamalSecretBcpgKey elPriv = new ElGamalSecretBcpgKey(bcpgIn);
ElGamalParameters elParams = new ElGamalParameters(elPub.P, elPub.G);
privateKey = new ElGamalPrivateKeyParameters(elPriv.X, elParams);
break;
default:
throw new PgpException("unknown public key algorithm encountered");
}
return(new PgpPrivateKey(privateKey, KeyId));
}
catch (PgpException e)
{
throw e;
}
catch (Exception e)
{
throw new PgpException("Exception constructing key", e);
}
}
internal PgpSecretKey(
PgpPrivateKey privKey,
PgpPublicKey pubKey,
SymmetricKeyAlgorithmTag encAlgorithm,
char[] passPhrase,
bool useSha1,
SecureRandom rand,
bool isMasterKey)
{
BcpgObject secKey;
this.pub = pubKey;
switch (pubKey.Algorithm)
{
case PublicKeyAlgorithmTag.RsaEncrypt:
case PublicKeyAlgorithmTag.RsaSign:
case PublicKeyAlgorithmTag.RsaGeneral:
RsaPrivateCrtKeyParameters rsK = (RsaPrivateCrtKeyParameters)privKey.Key;
secKey = new RsaSecretBcpgKey(rsK.Exponent, rsK.P, rsK.Q);
break;
case PublicKeyAlgorithmTag.Dsa:
DsaPrivateKeyParameters dsK = (DsaPrivateKeyParameters)privKey.Key;
secKey = new DsaSecretBcpgKey(dsK.X);
break;
case PublicKeyAlgorithmTag.ElGamalEncrypt:
case PublicKeyAlgorithmTag.ElGamalGeneral:
ElGamalPrivateKeyParameters esK = (ElGamalPrivateKeyParameters)privKey.Key;
secKey = new ElGamalSecretBcpgKey(esK.X);
break;
default:
throw new PgpException("unknown key class");
}
try
{
MemoryStream bOut = new MemoryStream();
BcpgOutputStream pOut = new BcpgOutputStream(bOut);
pOut.WriteObject(secKey);
byte[] keyData = bOut.ToArray();
byte[] checksumData = Checksum(useSha1, keyData, keyData.Length);
keyData = Arrays.Concatenate(keyData, checksumData);
if (encAlgorithm == SymmetricKeyAlgorithmTag.Null)
{
if (isMasterKey)
{
this.secret = new SecretKeyPacket(pub.publicPk, encAlgorithm, null, null, keyData);
}
else
{
this.secret = new SecretSubkeyPacket(pub.publicPk, encAlgorithm, null, null, keyData);
}
}
else
{
S2k s2k;
byte[] iv;
byte[] encData;
if (pub.Version >= 4)
{
encData = EncryptKeyData(keyData, encAlgorithm, passPhrase, rand, out s2k, out iv);
}
else
{
// TODO v3 RSA key encryption
throw Platform.CreateNotImplementedException("v3 RSA");
}
int s2kUsage = useSha1
? SecretKeyPacket.UsageSha1
: SecretKeyPacket.UsageChecksum;
if (isMasterKey)
{
this.secret = new SecretKeyPacket(pub.publicPk, encAlgorithm, s2kUsage, s2k, iv, encData);
}
else
{
this.secret = new SecretSubkeyPacket(pub.publicPk, encAlgorithm, s2kUsage, s2k, iv, encData);
}
}
}
catch (PgpException e)
{
throw e;
}
catch (Exception e)
{
throw new PgpException("Exception encrypting key", e);
}
}
/// <summary>
/// Extract a <c>PgpPrivateKey</c> from this secret key's encrypted contents.
/// </summary>
/// <param name="passPhrase"></param>
/// <returns></returns>
/// <exception cref="PgpException">
/// unknown public key algorithm encountered
/// or
/// Exception constructing key
/// </exception>
public IPgpPrivateKey ExtractPrivateKey(char[] passPhrase)
{
var secKeyData = _secret.GetSecretKeyData();
if (secKeyData == null || secKeyData.Length < 1)
{
return(null);
}
var pubPk = _secret.PublicKeyPacket;
try
{
var data = ExtractKeyData(passPhrase);
using (var memory = new MemoryStream(data, false))
{
using (var bcpgIn = BcpgInputStream.Wrap(memory))
{
IAsymmetricKeyParameter privateKey;
switch (pubPk.Algorithm)
{
case PublicKeyAlgorithmTag.RsaEncrypt:
case PublicKeyAlgorithmTag.RsaGeneral:
case PublicKeyAlgorithmTag.RsaSign:
var rsaPub = (RsaPublicBcpgKey)pubPk.Key;
var rsaPriv = new RsaSecretBcpgKey(bcpgIn);
var rsaPrivSpec = new RsaPrivateCrtKeyParameters(
rsaPriv.Modulus,
rsaPub.PublicExponent,
rsaPriv.PrivateExponent,
rsaPriv.PrimeP,
rsaPriv.PrimeQ,
rsaPriv.PrimeExponentP,
rsaPriv.PrimeExponentQ,
rsaPriv.CrtCoefficient);
privateKey = rsaPrivSpec;
break;
case PublicKeyAlgorithmTag.Dsa:
var dsaPub = (DsaPublicBcpgKey)pubPk.Key;
var dsaPriv = new DsaSecretBcpgKey(bcpgIn);
var dsaParams = new DsaParameters(dsaPub.P, dsaPub.Q, dsaPub.G);
privateKey = new DsaPrivateKeyParameters(dsaPriv.X, dsaParams);
break;
case PublicKeyAlgorithmTag.ElGamalEncrypt:
case PublicKeyAlgorithmTag.ElGamalGeneral:
var elPub = (ElGamalPublicBcpgKey)pubPk.Key;
var elPriv = new ElGamalSecretBcpgKey(bcpgIn);
var elParams = new ElGamalParameters(elPub.P, elPub.G);
privateKey = new ElGamalPrivateKeyParameters(elPriv.X, elParams);
break;
case PublicKeyAlgorithmTag.Ecdh:
var ecdhPub = (ECDHPublicBcpgKey)pubPk.Key;
var ecdhPriv = new ECSecretBcpgKey(bcpgIn);
privateKey = new ECDHPrivateKeyParameters(ecdhPriv.X,
new ECDHPublicKeyParameters(ecdhPub.Point, ecdhPub.Oid, ecdhPub.HashAlgorithm, ecdhPub.SymmetricKeyAlgorithm),
PgpPublicKey.BuildFingerprint(pubPk));
break;
case PublicKeyAlgorithmTag.Ecdsa:
var ecdsaPub = (ECPublicBcpgKey)pubPk.Key;
var ecdsaPriv = new ECSecretBcpgKey(bcpgIn);
privateKey = new ECPrivateKeyParameters(pubPk.Algorithm.ToString(), ecdsaPriv.X, ecdsaPub.Oid);
break;
default:
throw new PgpException("unknown public key algorithm encountered");
}
return(new PgpPrivateKey(privateKey, KeyId));
}
}
}
catch (PgpException)
{
throw;
}
catch (Exception e)
{
throw new PgpException("Exception constructing key", e);
}
}
internal PgpSecretKey(
PgpPrivateKey privKey,
PgpPublicKey pubKey,
SymmetricKeyAlgorithmTag encAlgorithm,
char[] passPhrase,
bool useSha1,
ISecureRandom rand,
bool isMasterKey)
{
BcpgObject secKey;
_pub = pubKey;
switch (pubKey.Algorithm)
{
case PublicKeyAlgorithmTag.RsaEncrypt:
case PublicKeyAlgorithmTag.RsaSign:
case PublicKeyAlgorithmTag.RsaGeneral:
var rsK = (RsaPrivateCrtKeyParameters)privKey.Key;
secKey = new RsaSecretBcpgKey(rsK.Exponent, rsK.P, rsK.Q);
break;
case PublicKeyAlgorithmTag.Dsa:
var dsK = (DsaPrivateKeyParameters)privKey.Key;
secKey = new DsaSecretBcpgKey(dsK.X);
break;
case PublicKeyAlgorithmTag.ElGamalEncrypt:
case PublicKeyAlgorithmTag.ElGamalGeneral:
var esK = (ElGamalPrivateKeyParameters)privKey.Key;
secKey = new ElGamalSecretBcpgKey(esK.X);
break;
case PublicKeyAlgorithmTag.Ecdh:
case PublicKeyAlgorithmTag.Ecdsa:
var ecK = (ECPrivateKeyParameters)privKey.Key;
secKey = new ECSecretBcpgKey(ecK.D);
break;
default:
throw new PgpException("unknown key class");
}
try
{
using (var bOut = new MemoryStream())
{
using (var pOut = new BcpgOutputStream(bOut))
{
pOut.WriteObject(secKey);
var keyData = bOut.ToArray();
var checksumBytes = Checksum(useSha1, keyData, keyData.Length);
pOut.Write(checksumBytes);
var bOutData = bOut.ToArray();
if (encAlgorithm == SymmetricKeyAlgorithmTag.Null)
{
this._secret = isMasterKey
? new SecretKeyPacket(_pub.PublicKeyPacket, encAlgorithm, null, null, bOutData)
: new SecretSubkeyPacket(_pub.PublicKeyPacket, encAlgorithm, null, null, bOutData);
}
else
{
S2k s2K;
byte[] iv;
var encData = EncryptKeyData(bOutData, encAlgorithm, passPhrase, rand, out s2K, out iv);
var s2KUsage = useSha1 ? SecretKeyPacket.UsageSha1 : SecretKeyPacket.UsageChecksum;
this._secret = isMasterKey
? new SecretKeyPacket(_pub.PublicKeyPacket, encAlgorithm, s2KUsage, s2K, iv, encData)
: new SecretSubkeyPacket(_pub.PublicKeyPacket, encAlgorithm, s2KUsage, s2K, iv, encData);
}
}
}
}
catch (PgpException)
{
throw;
}
catch (Exception e)
{
throw new PgpException("Exception encrypting key", e);
}
}
/// <summary>Extract a <c>PgpPrivateKey</c> from this secret key's encrypted contents.</summary>
public PgpPrivateKey ExtractPrivateKey(
char[] passPhrase)
{
byte[] secKeyData = secret.GetSecretKeyData();
if (secKeyData == null || secKeyData.Length < 1)
return null;
PublicKeyPacket pubPk = secret.PublicKeyPacket;
try
{
byte[] data = ExtractKeyData(passPhrase);
BcpgInputStream bcpgIn = BcpgInputStream.Wrap(new MemoryStream(data, false));
AsymmetricKeyParameter privateKey;
switch (pubPk.Algorithm)
{
case PublicKeyAlgorithmTag.RsaEncrypt:
case PublicKeyAlgorithmTag.RsaGeneral:
case PublicKeyAlgorithmTag.RsaSign:
RsaPublicBcpgKey rsaPub = (RsaPublicBcpgKey)pubPk.Key;
RsaSecretBcpgKey rsaPriv = new RsaSecretBcpgKey(bcpgIn);
RsaPrivateCrtKeyParameters rsaPrivSpec = new RsaPrivateCrtKeyParameters(
rsaPriv.Modulus,
rsaPub.PublicExponent,
rsaPriv.PrivateExponent,
rsaPriv.PrimeP,
rsaPriv.PrimeQ,
rsaPriv.PrimeExponentP,
rsaPriv.PrimeExponentQ,
rsaPriv.CrtCoefficient);
privateKey = rsaPrivSpec;
break;
case PublicKeyAlgorithmTag.Dsa:
DsaPublicBcpgKey dsaPub = (DsaPublicBcpgKey)pubPk.Key;
DsaSecretBcpgKey dsaPriv = new DsaSecretBcpgKey(bcpgIn);
DsaParameters dsaParams = new DsaParameters(dsaPub.P, dsaPub.Q, dsaPub.G);
privateKey = new DsaPrivateKeyParameters(dsaPriv.X, dsaParams);
break;
case PublicKeyAlgorithmTag.ElGamalEncrypt:
case PublicKeyAlgorithmTag.ElGamalGeneral:
ElGamalPublicBcpgKey elPub = (ElGamalPublicBcpgKey)pubPk.Key;
ElGamalSecretBcpgKey elPriv = new ElGamalSecretBcpgKey(bcpgIn);
ElGamalParameters elParams = new ElGamalParameters(elPub.P, elPub.G);
privateKey = new ElGamalPrivateKeyParameters(elPriv.X, elParams);
break;
default:
throw new PgpException("unknown public key algorithm encountered");
}
return new PgpPrivateKey(privateKey, KeyId);
}
catch (PgpException e)
{
throw e;
}
catch (Exception e)
{
throw new PgpException("Exception constructing key", e);
}
}
internal PgpSecretKey(
PgpKeyPair keyPair,
SymmetricKeyAlgorithmTag encAlgorithm,
char[] passPhrase,
bool useSHA1,
SecureRandom rand)
{
PublicKeyPacket pubPk = keyPair.PublicKey.publicPk;
BcpgObject secKey;
switch (keyPair.PublicKey.Algorithm)
{
case PublicKeyAlgorithmTag.RsaEncrypt:
case PublicKeyAlgorithmTag.RsaSign:
case PublicKeyAlgorithmTag.RsaGeneral:
RsaPrivateCrtKeyParameters rsK = (RsaPrivateCrtKeyParameters) keyPair.PrivateKey.Key;
secKey = new RsaSecretBcpgKey(rsK.Exponent, rsK.P, rsK.Q);
break;
case PublicKeyAlgorithmTag.Dsa:
DsaPrivateKeyParameters dsK = (DsaPrivateKeyParameters) keyPair.PrivateKey.Key;
secKey = new DsaSecretBcpgKey(dsK.X);
break;
case PublicKeyAlgorithmTag.ElGamalEncrypt:
case PublicKeyAlgorithmTag.ElGamalGeneral:
ElGamalPrivateKeyParameters esK = (ElGamalPrivateKeyParameters) keyPair.PrivateKey.Key;
secKey = new ElGamalSecretBcpgKey(esK.X);
break;
default:
throw new PgpException("unknown key class");
}
string cName = PgpUtilities.GetSymmetricCipherName(encAlgorithm);
IBufferedCipher c = null;
if (cName != null)
{
try
{
c = CipherUtilities.GetCipher(cName + "/CFB/NoPadding");
}
catch (Exception e)
{
throw new PgpException("Exception creating cipher", e);
}
}
try
{
MemoryStream bOut = new MemoryStream();
BcpgOutputStream pOut = new BcpgOutputStream(bOut);
pOut.WriteObject(secKey);
byte[] keyData = bOut.ToArray();
byte[] checksumBytes = Checksum(useSHA1, keyData, keyData.Length);
pOut.Write(checksumBytes);
byte[] bOutData = bOut.ToArray();
if (c != null)
{
byte[] iv = new byte[8];
rand.NextBytes(iv);
S2k s2k = new S2k(HashAlgorithmTag.Sha1, iv, 0x60);
KeyParameter key = PgpUtilities.MakeKeyFromPassPhrase(encAlgorithm, s2k, passPhrase);
iv = new byte[c.GetBlockSize()];
rand.NextBytes(iv);
c.Init(true, new ParametersWithIV(key, iv));
byte[] encData = c.DoFinal(bOutData);
int usage = useSHA1
? SecretKeyPacket.UsageSha1
: SecretKeyPacket.UsageChecksum;
this.secret = new SecretKeyPacket(pubPk, encAlgorithm, usage, s2k, iv, encData);
}
else
{
this.secret = new SecretKeyPacket(pubPk, encAlgorithm, null, null, bOutData);
}
this.trust = null;
}
catch (PgpException e)
{
throw e;
}
catch (Exception e)
{
throw new PgpException("Exception encrypting key", e);
}
this.keySigs = new ArrayList();
}
internal PgpSecretKey(
PgpKeyPair keyPair,
SymmetricKeyAlgorithmTag encAlgorithm,
char[] passPhrase,
bool useSHA1,
SecureRandom rand)
{
PublicKeyPacket pubPk = keyPair.PublicKey.publicPk;
BcpgObject secKey;
switch (keyPair.PublicKey.Algorithm)
{
case PublicKeyAlgorithmTag.RsaEncrypt:
case PublicKeyAlgorithmTag.RsaSign:
case PublicKeyAlgorithmTag.RsaGeneral:
RsaPrivateCrtKeyParameters rsK = (RsaPrivateCrtKeyParameters)keyPair.PrivateKey.Key;
secKey = new RsaSecretBcpgKey(rsK.Exponent, rsK.P, rsK.Q);
break;
case PublicKeyAlgorithmTag.Dsa:
DsaPrivateKeyParameters dsK = (DsaPrivateKeyParameters)keyPair.PrivateKey.Key;
secKey = new DsaSecretBcpgKey(dsK.X);
break;
case PublicKeyAlgorithmTag.ElGamalEncrypt:
case PublicKeyAlgorithmTag.ElGamalGeneral:
ElGamalPrivateKeyParameters esK = (ElGamalPrivateKeyParameters)keyPair.PrivateKey.Key;
secKey = new ElGamalSecretBcpgKey(esK.X);
break;
default:
throw new PgpException("unknown key class");
}
string cName = PgpUtilities.GetSymmetricCipherName(encAlgorithm);
IBufferedCipher c = null;
if (cName != null)
{
try
{
c = CipherUtilities.GetCipher(cName + "/CFB/NoPadding");
}
catch (Exception e)
{
throw new PgpException("Exception creating cipher", e);
}
}
try
{
MemoryStream bOut = new MemoryStream();
BcpgOutputStream pOut = new BcpgOutputStream(bOut);
pOut.WriteObject(secKey);
byte[] keyData = bOut.ToArray();
byte[] checksumBytes = Checksum(useSHA1, keyData, keyData.Length);
pOut.Write(checksumBytes);
byte[] bOutData = bOut.ToArray();
if (c != null)
{
byte[] iv = new byte[8];
rand.NextBytes(iv);
S2k s2k = new S2k(HashAlgorithmTag.Sha1, iv, 0x60);
KeyParameter key = PgpUtilities.MakeKeyFromPassPhrase(encAlgorithm, s2k, passPhrase);
iv = new byte[c.GetBlockSize()];
rand.NextBytes(iv);
c.Init(true, new ParametersWithIV(key, iv));
byte[] encData = c.DoFinal(bOutData);
int usage = useSHA1
? SecretKeyPacket.UsageSha1
: SecretKeyPacket.UsageChecksum;
this.secret = new SecretKeyPacket(pubPk, encAlgorithm, usage, s2k, iv, encData);
}
else
{
this.secret = new SecretKeyPacket(pubPk, encAlgorithm, null, null, bOutData);
}
this.trust = null;
}
catch (PgpException e)
{
throw e;
}
catch (Exception e)
{
throw new PgpException("Exception encrypting key", e);
}
this.keySigs = new ArrayList();
}
internal PgpSecretKey(PgpPrivateKey privKey, PgpPublicKey pubKey, SymmetricKeyAlgorithmTag encAlgorithm, byte[] rawPassPhrase, bool clearPassPhrase, bool useSha1, SecureRandom rand, bool isMasterKey)
{
//IL_00cb: Unknown result type (might be due to invalid IL or missing references)
//IL_00d2: Expected O, but got Unknown
pub = pubKey;
BcpgObject bcpgObject;
switch (pubKey.Algorithm)
{
case PublicKeyAlgorithmTag.RsaGeneral:
case PublicKeyAlgorithmTag.RsaEncrypt:
case PublicKeyAlgorithmTag.RsaSign:
{
RsaPrivateCrtKeyParameters rsaPrivateCrtKeyParameters = (RsaPrivateCrtKeyParameters)privKey.Key;
bcpgObject = new RsaSecretBcpgKey(rsaPrivateCrtKeyParameters.Exponent, rsaPrivateCrtKeyParameters.P, rsaPrivateCrtKeyParameters.Q);
break;
}
case PublicKeyAlgorithmTag.Dsa:
{
DsaPrivateKeyParameters dsaPrivateKeyParameters = (DsaPrivateKeyParameters)privKey.Key;
bcpgObject = new DsaSecretBcpgKey(dsaPrivateKeyParameters.X);
break;
}
case PublicKeyAlgorithmTag.EC:
case PublicKeyAlgorithmTag.ECDsa:
{
ECPrivateKeyParameters eCPrivateKeyParameters = (ECPrivateKeyParameters)privKey.Key;
bcpgObject = new ECSecretBcpgKey(eCPrivateKeyParameters.D);
break;
}
case PublicKeyAlgorithmTag.ElGamalEncrypt:
case PublicKeyAlgorithmTag.ElGamalGeneral:
{
ElGamalPrivateKeyParameters elGamalPrivateKeyParameters = (ElGamalPrivateKeyParameters)privKey.Key;
bcpgObject = new ElGamalSecretBcpgKey(elGamalPrivateKeyParameters.X);
break;
}
default:
throw new PgpException("unknown key class");
}
try
{
MemoryStream val = new MemoryStream();
BcpgOutputStream bcpgOutputStream = new BcpgOutputStream((Stream)(object)val);
bcpgOutputStream.WriteObject(bcpgObject);
byte[] array = val.ToArray();
byte[] b = Checksum(useSha1, array, array.Length);
array = Arrays.Concatenate(array, b);
if (encAlgorithm == SymmetricKeyAlgorithmTag.Null)
{
if (isMasterKey)
{
secret = new SecretKeyPacket(pub.publicPk, encAlgorithm, null, null, array);
}
else
{
secret = new SecretSubkeyPacket(pub.publicPk, encAlgorithm, null, null, array);
}
return;
}
S2k s2k;
byte[] iv;
byte[] secKeyData = ((pub.Version < 4) ? EncryptKeyDataV3(array, encAlgorithm, rawPassPhrase, clearPassPhrase, rand, out s2k, out iv) : EncryptKeyDataV4(array, encAlgorithm, HashAlgorithmTag.Sha1, rawPassPhrase, clearPassPhrase, rand, out s2k, out iv));
int s2kUsage = (useSha1 ? 254 : 255);
if (isMasterKey)
{
secret = new SecretKeyPacket(pub.publicPk, encAlgorithm, s2kUsage, s2k, iv, secKeyData);
}
else
{
secret = new SecretSubkeyPacket(pub.publicPk, encAlgorithm, s2kUsage, s2k, iv, secKeyData);
}
}
catch (PgpException ex)
{
throw ex;
}
catch (global::System.Exception exception)
{
throw new PgpException("Exception encrypting key", exception);
}
}
internal PgpPrivateKey DoExtractPrivateKey(byte[] rawPassPhrase, bool clearPassPhrase)
{
//IL_0021: Unknown result type (might be due to invalid IL or missing references)
//IL_002b: Expected O, but got Unknown
if (IsPrivateKeyEmpty)
{
return(null);
}
PublicKeyPacket publicKeyPacket = secret.PublicKeyPacket;
try
{
byte[] array = ExtractKeyData(rawPassPhrase, clearPassPhrase);
BcpgInputStream bcpgIn = BcpgInputStream.Wrap((Stream) new MemoryStream(array, false));
AsymmetricKeyParameter privateKey;
switch (publicKeyPacket.Algorithm)
{
case PublicKeyAlgorithmTag.RsaGeneral:
case PublicKeyAlgorithmTag.RsaEncrypt:
case PublicKeyAlgorithmTag.RsaSign:
{
RsaPublicBcpgKey rsaPublicBcpgKey = (RsaPublicBcpgKey)publicKeyPacket.Key;
RsaSecretBcpgKey rsaSecretBcpgKey = new RsaSecretBcpgKey(bcpgIn);
RsaPrivateCrtKeyParameters rsaPrivateCrtKeyParameters = new RsaPrivateCrtKeyParameters(rsaSecretBcpgKey.Modulus, rsaPublicBcpgKey.PublicExponent, rsaSecretBcpgKey.PrivateExponent, rsaSecretBcpgKey.PrimeP, rsaSecretBcpgKey.PrimeQ, rsaSecretBcpgKey.PrimeExponentP, rsaSecretBcpgKey.PrimeExponentQ, rsaSecretBcpgKey.CrtCoefficient);
privateKey = rsaPrivateCrtKeyParameters;
break;
}
case PublicKeyAlgorithmTag.Dsa:
{
DsaPublicBcpgKey dsaPublicBcpgKey = (DsaPublicBcpgKey)publicKeyPacket.Key;
DsaSecretBcpgKey dsaSecretBcpgKey = new DsaSecretBcpgKey(bcpgIn);
DsaParameters parameters2 = new DsaParameters(dsaPublicBcpgKey.P, dsaPublicBcpgKey.Q, dsaPublicBcpgKey.G);
privateKey = new DsaPrivateKeyParameters(dsaSecretBcpgKey.X, parameters2);
break;
}
case PublicKeyAlgorithmTag.EC:
privateKey = GetECKey("ECDH", bcpgIn);
break;
case PublicKeyAlgorithmTag.ECDsa:
privateKey = GetECKey("ECDSA", bcpgIn);
break;
case PublicKeyAlgorithmTag.ElGamalEncrypt:
case PublicKeyAlgorithmTag.ElGamalGeneral:
{
ElGamalPublicBcpgKey elGamalPublicBcpgKey = (ElGamalPublicBcpgKey)publicKeyPacket.Key;
ElGamalSecretBcpgKey elGamalSecretBcpgKey = new ElGamalSecretBcpgKey(bcpgIn);
ElGamalParameters parameters = new ElGamalParameters(elGamalPublicBcpgKey.P, elGamalPublicBcpgKey.G);
privateKey = new ElGamalPrivateKeyParameters(elGamalSecretBcpgKey.X, parameters);
break;
}
default:
throw new PgpException("unknown public key algorithm encountered");
}
return(new PgpPrivateKey(KeyId, publicKeyPacket, privateKey));
}
catch (PgpException ex)
{
throw ex;
}
catch (global::System.Exception exception)
{
throw new PgpException("Exception constructing key", exception);
}
}
