diff options
Diffstat (limited to 'prov/src/main/java/org/bouncycastle/pqc/jcajce/provider/mceliece/McEliecePointchevalCipherSpi.java')
| -rw-r--r-- | prov/src/main/java/org/bouncycastle/pqc/jcajce/provider/mceliece/McEliecePointchevalCipherSpi.java | 247 |
1 files changed, 0 insertions, 247 deletions
diff --git a/prov/src/main/java/org/bouncycastle/pqc/jcajce/provider/mceliece/McEliecePointchevalCipherSpi.java b/prov/src/main/java/org/bouncycastle/pqc/jcajce/provider/mceliece/McEliecePointchevalCipherSpi.java deleted file mode 100644 index c9c67ea6..00000000 --- a/prov/src/main/java/org/bouncycastle/pqc/jcajce/provider/mceliece/McEliecePointchevalCipherSpi.java +++ /dev/null @@ -1,247 +0,0 @@ -package org.bouncycastle.pqc.jcajce.provider.mceliece; - -import java.io.ByteArrayOutputStream; -import java.security.InvalidAlgorithmParameterException; -import java.security.InvalidKeyException; -import java.security.Key; -import java.security.NoSuchAlgorithmException; -import java.security.PrivateKey; -import java.security.PublicKey; -import java.security.SecureRandom; -import java.security.spec.AlgorithmParameterSpec; - -import javax.crypto.BadPaddingException; -import javax.crypto.IllegalBlockSizeException; - -import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers; -import org.bouncycastle.asn1.x509.X509ObjectIdentifiers; -import org.bouncycastle.crypto.CipherParameters; -import org.bouncycastle.crypto.Digest; -import org.bouncycastle.crypto.digests.SHA1Digest; -import org.bouncycastle.crypto.digests.SHA224Digest; -import org.bouncycastle.crypto.digests.SHA256Digest; -import org.bouncycastle.crypto.digests.SHA384Digest; -import org.bouncycastle.crypto.digests.SHA512Digest; -import org.bouncycastle.crypto.params.ParametersWithRandom; -import org.bouncycastle.pqc.crypto.mceliece.McElieceCCA2KeyParameters; -import org.bouncycastle.pqc.crypto.mceliece.McEliecePointchevalCipher; -import org.bouncycastle.pqc.jcajce.provider.util.AsymmetricHybridCipher; - -public class McEliecePointchevalCipherSpi - extends AsymmetricHybridCipher - implements PKCSObjectIdentifiers, X509ObjectIdentifiers -{ - // TODO digest needed? - private Digest digest; - private McEliecePointchevalCipher cipher; - - /** - * buffer to store the input data - */ - private ByteArrayOutputStream buf = new ByteArrayOutputStream(); - - - protected McEliecePointchevalCipherSpi(Digest digest, McEliecePointchevalCipher cipher) - { - this.digest = digest; - this.cipher = cipher; - buf = new ByteArrayOutputStream(); - } - - /** - * Continue a multiple-part encryption or decryption operation. - * - * @param input byte array containing the next part of the input - * @param inOff index in the array where the input starts - * @param inLen length of the input - * @return the processed byte array. - */ - public byte[] update(byte[] input, int inOff, int inLen) - { - buf.write(input, inOff, inLen); - return new byte[0]; - } - - - /** - * Encrypts or decrypts data in a single-part operation, or finishes a - * multiple-part operation. The data is encrypted or decrypted, depending on - * how this cipher was initialized. - * - * @param input the input buffer - * @param inOff the offset in input where the input starts - * @param inLen the input length - * @return the new buffer with the result - * @throws BadPaddingException on deryption errors. - */ - public byte[] doFinal(byte[] input, int inOff, int inLen) - throws BadPaddingException - { - update(input, inOff, inLen); - byte[] data = buf.toByteArray(); - buf.reset(); - if (opMode == ENCRYPT_MODE) - { - - try - { - return cipher.messageEncrypt(data); - } - catch (Exception e) - { - e.printStackTrace(); - } - - } - else if (opMode == DECRYPT_MODE) - { - - try - { - return cipher.messageDecrypt(data); - } - catch (Exception e) - { - e.printStackTrace(); - } - - } - return null; - } - - protected int encryptOutputSize(int inLen) - { - return 0; - } - - protected int decryptOutputSize(int inLen) - { - return 0; - } - - protected void initCipherEncrypt(Key key, AlgorithmParameterSpec params, - SecureRandom sr) - throws InvalidKeyException, - InvalidAlgorithmParameterException - { - CipherParameters param; - param = McElieceCCA2KeysToParams.generatePublicKeyParameter((PublicKey)key); - - param = new ParametersWithRandom(param, sr); - digest.reset(); - cipher.init(true, param); - } - - protected void initCipherDecrypt(Key key, AlgorithmParameterSpec params) - throws InvalidKeyException, InvalidAlgorithmParameterException - { - CipherParameters param; - param = McElieceCCA2KeysToParams.generatePrivateKeyParameter((PrivateKey)key); - - digest.reset(); - cipher.init(false, param); - } - - public String getName() - { - return "McEliecePointchevalCipher"; - } - - - public int getKeySize(Key key) - throws InvalidKeyException - { - McElieceCCA2KeyParameters mcElieceCCA2KeyParameters; - if (key instanceof PublicKey) - { - mcElieceCCA2KeyParameters = (McElieceCCA2KeyParameters)McElieceCCA2KeysToParams.generatePublicKeyParameter((PublicKey)key); - } - else - { - mcElieceCCA2KeyParameters = (McElieceCCA2KeyParameters)McElieceCCA2KeysToParams.generatePrivateKeyParameter((PrivateKey)key); - } - - return cipher.getKeySize(mcElieceCCA2KeyParameters); - } - - public byte[] messageEncrypt(byte[] input) - throws IllegalBlockSizeException, BadPaddingException, NoSuchAlgorithmException - { - byte[] output = null; - try - { - output = cipher.messageEncrypt(input); - } - catch (Exception e) - { - e.printStackTrace(); - } - return output; - } - - - public byte[] messageDecrypt(byte[] input) - throws IllegalBlockSizeException, BadPaddingException, NoSuchAlgorithmException - { - byte[] output = null; - try - { - output = cipher.messageDecrypt(input); - } - catch (Exception e) - { - e.printStackTrace(); - } - return output; - } - - - //////////////////////////////////////////////////////////////////////////////////77 - - static public class McEliecePointcheval - extends McEliecePointchevalCipherSpi - { - public McEliecePointcheval() - { - super(new SHA1Digest(), new McEliecePointchevalCipher()); - } - } - - static public class McEliecePointcheval224 - extends McEliecePointchevalCipherSpi - { - public McEliecePointcheval224() - { - super(new SHA224Digest(), new McEliecePointchevalCipher()); - } - } - - static public class McEliecePointcheval256 - extends McEliecePointchevalCipherSpi - { - public McEliecePointcheval256() - { - super(new SHA256Digest(), new McEliecePointchevalCipher()); - } - } - - static public class McEliecePointcheval384 - extends McEliecePointchevalCipherSpi - { - public McEliecePointcheval384() - { - super(new SHA384Digest(), new McEliecePointchevalCipher()); - } - } - - static public class McEliecePointcheval512 - extends McEliecePointchevalCipherSpi - { - public McEliecePointcheval512() - { - super(new SHA512Digest(), new McEliecePointchevalCipher()); - } - } - - -} |