com.arxanfintech.common.crypto.core

Class ECIESCoder

java.lang.Object

com.arxanfintech.common.crypto.core.ECIESCoder

public class ECIESCoder
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static int	KEY_SIZE

Constructor Summary

Constructors

Constructor and Description
ECIESCoder()

Method Summary

Modifier and Type	Method and Description
static byte[]	decrypt(BigInteger privKey, byte[] cipher)
static byte[]	decrypt(BigInteger privKey, byte[] cipher, byte[] macData)
static byte[]	decrypt(org.spongycastle.math.ec.ECPoint ephem, BigInteger prv, byte[] IV, byte[] cipher, byte[] macData)
static byte[]	decryptSimple(BigInteger privKey, byte[] cipher) Encryption equivalent to the Crypto++ default ECIES ECP settings: DL_KeyAgreementAlgorithm: DL_KeyAgreementAlgorithm_DH struct ECPPoint,struct EnumToType enum CofactorMultiplicationOption,0 DL_KeyDerivationAlgorithm: DL_KeyDerivationAlgorithm_P1363 struct ECPPoint,0,class P1363_KDF2 class SHA1 DL_SymmetricEncryptionAlgorithm: DL_EncryptionAlgorithm_Xor class HMAC class SHA1 ,0 DL_PrivateKey: DL_Key ECPPoint DL_PrivateKey_EC class ECP Used for Whisper V3
static byte[]	encrypt(org.spongycastle.math.ec.ECPoint toPub, byte[] plaintext)
static byte[]	encrypt(org.spongycastle.math.ec.ECPoint toPub, byte[] plaintext, byte[] macData)
static byte[]	encryptSimple(org.spongycastle.math.ec.ECPoint pub, byte[] plaintext) Encryption equivalent to the Crypto++ default ECIES ECP settings: DL_KeyAgreementAlgorithm: DL_KeyAgreementAlgorithm_DH struct ECPPoint,struct EnumToType enum CofactorMultiplicationOption,0 DL_KeyDerivationAlgorithm: DL_KeyDerivationAlgorithm_P1363 struct ECPPoint,0,class P1363_KDF2 class SHA1 DL_SymmetricEncryptionAlgorithm: DL_EncryptionAlgorithm_Xor class HMAC class SHA1,0 DL_PrivateKey: DL_Key ECPPoint DL_PrivateKey_EC class ECP Used for Whisper V3
static int	getOverhead()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

KEY_SIZE

public static final int KEY_SIZE

See Also:

Constant Field Values

Constructor Detail

ECIESCoder

public ECIESCoder()

Method Detail

decrypt

public static byte[] decrypt(BigInteger privKey,
                             byte[] cipher)
                      throws IOException,
                             org.spongycastle.crypto.InvalidCipherTextException

Throws:

IOException

org.spongycastle.crypto.InvalidCipherTextException

decrypt

public static byte[] decrypt(BigInteger privKey,
                             byte[] cipher,
                             byte[] macData)
                      throws IOException,
                             org.spongycastle.crypto.InvalidCipherTextException

Throws:

IOException

org.spongycastle.crypto.InvalidCipherTextException

decrypt

public static byte[] decrypt(org.spongycastle.math.ec.ECPoint ephem,
                             BigInteger prv,
                             byte[] IV,
                             byte[] cipher,
                             byte[] macData)
                      throws org.spongycastle.crypto.InvalidCipherTextException

Throws:

org.spongycastle.crypto.InvalidCipherTextException

decryptSimple

public static byte[] decryptSimple(BigInteger privKey,
                                   byte[] cipher)
                            throws IOException,
                                   org.spongycastle.crypto.InvalidCipherTextException

Encryption equivalent to the Crypto++ default ECIES ECP settings: DL_KeyAgreementAlgorithm: DL_KeyAgreementAlgorithm_DH struct ECPPoint,struct EnumToType enum CofactorMultiplicationOption,0 DL_KeyDerivationAlgorithm: DL_KeyDerivationAlgorithm_P1363 struct ECPPoint,0,class P1363_KDF2 class SHA1 DL_SymmetricEncryptionAlgorithm: DL_EncryptionAlgorithm_Xor class HMAC class SHA1 ,0 DL_PrivateKey: DL_Key ECPPoint DL_PrivateKey_EC class ECP Used for Whisper V3

Parameters:

privKey - privKey

cipher - cipher

Returns:

decryptSimple byte[] data

Throws:

IOException - IOException

org.spongycastle.crypto.InvalidCipherTextException - InvalidCipherTextException

encrypt

public static byte[] encrypt(org.spongycastle.math.ec.ECPoint toPub,
                             byte[] plaintext)
                      throws org.spongycastle.crypto.InvalidCipherTextException,
                             IOException

Throws:

org.spongycastle.crypto.InvalidCipherTextException

IOException

encrypt

public static byte[] encrypt(org.spongycastle.math.ec.ECPoint toPub,
                             byte[] plaintext,
                             byte[] macData)
                      throws org.spongycastle.crypto.InvalidCipherTextException,
                             IOException

Throws:

org.spongycastle.crypto.InvalidCipherTextException

IOException

encryptSimple

public static byte[] encryptSimple(org.spongycastle.math.ec.ECPoint pub,
                                   byte[] plaintext)
                            throws IOException,
                                   org.spongycastle.crypto.InvalidCipherTextException

Encryption equivalent to the Crypto++ default ECIES ECP settings: DL_KeyAgreementAlgorithm: DL_KeyAgreementAlgorithm_DH struct ECPPoint,struct EnumToType enum CofactorMultiplicationOption,0 DL_KeyDerivationAlgorithm: DL_KeyDerivationAlgorithm_P1363 struct ECPPoint,0,class P1363_KDF2 class SHA1 DL_SymmetricEncryptionAlgorithm: DL_EncryptionAlgorithm_Xor class HMAC class SHA1,0 DL_PrivateKey: DL_Key ECPPoint DL_PrivateKey_EC class ECP Used for Whisper V3

Parameters:

pub - pub

plaintext - plaintext

Returns:

byte[] encryptSimple

Throws:

IOException - IOException

org.spongycastle.crypto.InvalidCipherTextException - InvalidCipherTextException

getOverhead

public static int getOverhead()