diff options
Diffstat (limited to 'pkix/src/main/jdk1.1/org/bouncycastle/cms/jcajce/EnvelopedDataHelper.java')
-rw-r--r-- | pkix/src/main/jdk1.1/org/bouncycastle/cms/jcajce/EnvelopedDataHelper.java | 671 |
1 files changed, 0 insertions, 671 deletions
diff --git a/pkix/src/main/jdk1.1/org/bouncycastle/cms/jcajce/EnvelopedDataHelper.java b/pkix/src/main/jdk1.1/org/bouncycastle/cms/jcajce/EnvelopedDataHelper.java deleted file mode 100644 index cc1a114c..00000000 --- a/pkix/src/main/jdk1.1/org/bouncycastle/cms/jcajce/EnvelopedDataHelper.java +++ /dev/null @@ -1,671 +0,0 @@ -package org.bouncycastle.cms.jcajce; - -import java.security.AlgorithmParameterGenerator; -import java.security.AlgorithmParameters; -import java.security.GeneralSecurityException; -import java.security.InvalidAlgorithmParameterException; -import java.security.InvalidKeyException; -import java.security.Key; -import java.security.KeyFactory; -import java.security.KeyPairGenerator; -import java.security.NoSuchAlgorithmException; -import java.security.NoSuchProviderException; -import java.security.PrivateKey; -import java.security.SecureRandom; -import java.security.spec.AlgorithmParameterSpec; -import java.security.spec.InvalidParameterSpecException; -import java.util.HashMap; -import java.util.Map; - -import javax.crypto.Cipher; -import javax.crypto.KeyAgreement; -import javax.crypto.KeyGenerator; -import javax.crypto.Mac; -import javax.crypto.NoSuchPaddingException; -import javax.crypto.SecretKey; -import javax.crypto.spec.IvParameterSpec; -import javax.crypto.spec.RC2ParameterSpec; -import javax.crypto.spec.SecretKeySpec; - -import org.bouncycastle.asn1.ASN1Encodable; -import org.bouncycastle.asn1.ASN1Null; -import org.bouncycastle.asn1.ASN1ObjectIdentifier; -import org.bouncycastle.asn1.ASN1OctetString; -import org.bouncycastle.asn1.DERNull; -import org.bouncycastle.asn1.DEROctetString; -import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers; -import org.bouncycastle.asn1.pkcs.RC2CBCParameter; -import org.bouncycastle.asn1.x509.AlgorithmIdentifier; -import org.bouncycastle.cms.CMSAlgorithm; -import org.bouncycastle.cms.CMSEnvelopedDataGenerator; -import org.bouncycastle.cms.CMSException; -import org.bouncycastle.operator.DefaultSecretKeySizeProvider; -import org.bouncycastle.operator.GenericKey; -import org.bouncycastle.operator.SecretKeySizeProvider; -import org.bouncycastle.operator.SymmetricKeyUnwrapper; -import org.bouncycastle.operator.jcajce.JceAsymmetricKeyUnwrapper; - -public class EnvelopedDataHelper -{ - protected static final SecretKeySizeProvider KEY_SIZE_PROVIDER = DefaultSecretKeySizeProvider.INSTANCE; - - protected static final Map BASE_CIPHER_NAMES = new HashMap(); - protected static final Map CIPHER_ALG_NAMES = new HashMap(); - protected static final Map MAC_ALG_NAMES = new HashMap(); - - static - { - BASE_CIPHER_NAMES.put(CMSAlgorithm.DES_CBC, "DES"); - BASE_CIPHER_NAMES.put(CMSAlgorithm.DES_EDE3_CBC, "DESEDE"); - BASE_CIPHER_NAMES.put(CMSAlgorithm.AES128_CBC, "AES"); - BASE_CIPHER_NAMES.put(CMSAlgorithm.AES192_CBC, "AES"); - BASE_CIPHER_NAMES.put(CMSAlgorithm.AES256_CBC, "AES"); - BASE_CIPHER_NAMES.put(CMSAlgorithm.RC2_CBC, "RC2"); - BASE_CIPHER_NAMES.put(CMSAlgorithm.CAST5_CBC, "CAST5"); - BASE_CIPHER_NAMES.put(CMSAlgorithm.CAMELLIA128_CBC, "Camellia"); - BASE_CIPHER_NAMES.put(CMSAlgorithm.CAMELLIA192_CBC, "Camellia"); - BASE_CIPHER_NAMES.put(CMSAlgorithm.CAMELLIA256_CBC, "Camellia"); - BASE_CIPHER_NAMES.put(CMSAlgorithm.SEED_CBC, "SEED"); - BASE_CIPHER_NAMES.put(PKCSObjectIdentifiers.rc4, "RC4"); - - CIPHER_ALG_NAMES.put(CMSAlgorithm.DES_CBC, "DES/CBC/PKCS5Padding"); - CIPHER_ALG_NAMES.put(CMSAlgorithm.RC2_CBC, "RC2/CBC/PKCS5Padding"); - CIPHER_ALG_NAMES.put(CMSAlgorithm.DES_EDE3_CBC, "DESEDE/CBC/PKCS5Padding"); - CIPHER_ALG_NAMES.put(CMSAlgorithm.AES128_CBC, "AES/CBC/PKCS5Padding"); - CIPHER_ALG_NAMES.put(CMSAlgorithm.AES192_CBC, "AES/CBC/PKCS5Padding"); - CIPHER_ALG_NAMES.put(CMSAlgorithm.AES256_CBC, "AES/CBC/PKCS5Padding"); - CIPHER_ALG_NAMES.put(PKCSObjectIdentifiers.rsaEncryption, "RSA/ECB/PKCS1Padding"); - CIPHER_ALG_NAMES.put(CMSAlgorithm.CAST5_CBC, "CAST5/CBC/PKCS5Padding"); - CIPHER_ALG_NAMES.put(CMSAlgorithm.CAMELLIA128_CBC, "Camellia/CBC/PKCS5Padding"); - CIPHER_ALG_NAMES.put(CMSAlgorithm.CAMELLIA192_CBC, "Camellia/CBC/PKCS5Padding"); - CIPHER_ALG_NAMES.put(CMSAlgorithm.CAMELLIA256_CBC, "Camellia/CBC/PKCS5Padding"); - CIPHER_ALG_NAMES.put(CMSAlgorithm.SEED_CBC, "SEED/CBC/PKCS5Padding"); - CIPHER_ALG_NAMES.put(PKCSObjectIdentifiers.rc4, "RC4"); - - MAC_ALG_NAMES.put(CMSAlgorithm.DES_EDE3_CBC, "DESEDEMac"); - MAC_ALG_NAMES.put(CMSAlgorithm.AES128_CBC, "AESMac"); - MAC_ALG_NAMES.put(CMSAlgorithm.AES192_CBC, "AESMac"); - MAC_ALG_NAMES.put(CMSAlgorithm.AES256_CBC, "AESMac"); - MAC_ALG_NAMES.put(CMSAlgorithm.RC2_CBC, "RC2Mac"); - } - - private static final short[] rc2Table = { - 0xbd, 0x56, 0xea, 0xf2, 0xa2, 0xf1, 0xac, 0x2a, 0xb0, 0x93, 0xd1, 0x9c, 0x1b, 0x33, 0xfd, 0xd0, - 0x30, 0x04, 0xb6, 0xdc, 0x7d, 0xdf, 0x32, 0x4b, 0xf7, 0xcb, 0x45, 0x9b, 0x31, 0xbb, 0x21, 0x5a, - 0x41, 0x9f, 0xe1, 0xd9, 0x4a, 0x4d, 0x9e, 0xda, 0xa0, 0x68, 0x2c, 0xc3, 0x27, 0x5f, 0x80, 0x36, - 0x3e, 0xee, 0xfb, 0x95, 0x1a, 0xfe, 0xce, 0xa8, 0x34, 0xa9, 0x13, 0xf0, 0xa6, 0x3f, 0xd8, 0x0c, - 0x78, 0x24, 0xaf, 0x23, 0x52, 0xc1, 0x67, 0x17, 0xf5, 0x66, 0x90, 0xe7, 0xe8, 0x07, 0xb8, 0x60, - 0x48, 0xe6, 0x1e, 0x53, 0xf3, 0x92, 0xa4, 0x72, 0x8c, 0x08, 0x15, 0x6e, 0x86, 0x00, 0x84, 0xfa, - 0xf4, 0x7f, 0x8a, 0x42, 0x19, 0xf6, 0xdb, 0xcd, 0x14, 0x8d, 0x50, 0x12, 0xba, 0x3c, 0x06, 0x4e, - 0xec, 0xb3, 0x35, 0x11, 0xa1, 0x88, 0x8e, 0x2b, 0x94, 0x99, 0xb7, 0x71, 0x74, 0xd3, 0xe4, 0xbf, - 0x3a, 0xde, 0x96, 0x0e, 0xbc, 0x0a, 0xed, 0x77, 0xfc, 0x37, 0x6b, 0x03, 0x79, 0x89, 0x62, 0xc6, - 0xd7, 0xc0, 0xd2, 0x7c, 0x6a, 0x8b, 0x22, 0xa3, 0x5b, 0x05, 0x5d, 0x02, 0x75, 0xd5, 0x61, 0xe3, - 0x18, 0x8f, 0x55, 0x51, 0xad, 0x1f, 0x0b, 0x5e, 0x85, 0xe5, 0xc2, 0x57, 0x63, 0xca, 0x3d, 0x6c, - 0xb4, 0xc5, 0xcc, 0x70, 0xb2, 0x91, 0x59, 0x0d, 0x47, 0x20, 0xc8, 0x4f, 0x58, 0xe0, 0x01, 0xe2, - 0x16, 0x38, 0xc4, 0x6f, 0x3b, 0x0f, 0x65, 0x46, 0xbe, 0x7e, 0x2d, 0x7b, 0x82, 0xf9, 0x40, 0xb5, - 0x1d, 0x73, 0xf8, 0xeb, 0x26, 0xc7, 0x87, 0x97, 0x25, 0x54, 0xb1, 0x28, 0xaa, 0x98, 0x9d, 0xa5, - 0x64, 0x6d, 0x7a, 0xd4, 0x10, 0x81, 0x44, 0xef, 0x49, 0xd6, 0xae, 0x2e, 0xdd, 0x76, 0x5c, 0x2f, - 0xa7, 0x1c, 0xc9, 0x09, 0x69, 0x9a, 0x83, 0xcf, 0x29, 0x39, 0xb9, 0xe9, 0x4c, 0xff, 0x43, 0xab - }; - - private static final short[] rc2Ekb = { - 0x5d, 0xbe, 0x9b, 0x8b, 0x11, 0x99, 0x6e, 0x4d, 0x59, 0xf3, 0x85, 0xa6, 0x3f, 0xb7, 0x83, 0xc5, - 0xe4, 0x73, 0x6b, 0x3a, 0x68, 0x5a, 0xc0, 0x47, 0xa0, 0x64, 0x34, 0x0c, 0xf1, 0xd0, 0x52, 0xa5, - 0xb9, 0x1e, 0x96, 0x43, 0x41, 0xd8, 0xd4, 0x2c, 0xdb, 0xf8, 0x07, 0x77, 0x2a, 0xca, 0xeb, 0xef, - 0x10, 0x1c, 0x16, 0x0d, 0x38, 0x72, 0x2f, 0x89, 0xc1, 0xf9, 0x80, 0xc4, 0x6d, 0xae, 0x30, 0x3d, - 0xce, 0x20, 0x63, 0xfe, 0xe6, 0x1a, 0xc7, 0xb8, 0x50, 0xe8, 0x24, 0x17, 0xfc, 0x25, 0x6f, 0xbb, - 0x6a, 0xa3, 0x44, 0x53, 0xd9, 0xa2, 0x01, 0xab, 0xbc, 0xb6, 0x1f, 0x98, 0xee, 0x9a, 0xa7, 0x2d, - 0x4f, 0x9e, 0x8e, 0xac, 0xe0, 0xc6, 0x49, 0x46, 0x29, 0xf4, 0x94, 0x8a, 0xaf, 0xe1, 0x5b, 0xc3, - 0xb3, 0x7b, 0x57, 0xd1, 0x7c, 0x9c, 0xed, 0x87, 0x40, 0x8c, 0xe2, 0xcb, 0x93, 0x14, 0xc9, 0x61, - 0x2e, 0xe5, 0xcc, 0xf6, 0x5e, 0xa8, 0x5c, 0xd6, 0x75, 0x8d, 0x62, 0x95, 0x58, 0x69, 0x76, 0xa1, - 0x4a, 0xb5, 0x55, 0x09, 0x78, 0x33, 0x82, 0xd7, 0xdd, 0x79, 0xf5, 0x1b, 0x0b, 0xde, 0x26, 0x21, - 0x28, 0x74, 0x04, 0x97, 0x56, 0xdf, 0x3c, 0xf0, 0x37, 0x39, 0xdc, 0xff, 0x06, 0xa4, 0xea, 0x42, - 0x08, 0xda, 0xb4, 0x71, 0xb0, 0xcf, 0x12, 0x7a, 0x4e, 0xfa, 0x6c, 0x1d, 0x84, 0x00, 0xc8, 0x7f, - 0x91, 0x45, 0xaa, 0x2b, 0xc2, 0xb1, 0x8f, 0xd5, 0xba, 0xf2, 0xad, 0x19, 0xb2, 0x67, 0x36, 0xf7, - 0x0f, 0x0a, 0x92, 0x7d, 0xe3, 0x9d, 0xe9, 0x90, 0x3e, 0x23, 0x27, 0x66, 0x13, 0xec, 0x81, 0x15, - 0xbd, 0x22, 0xbf, 0x9f, 0x7e, 0xa9, 0x51, 0x4b, 0x4c, 0xfb, 0x02, 0xd3, 0x70, 0x86, 0x31, 0xe7, - 0x3b, 0x05, 0x03, 0x54, 0x60, 0x48, 0x65, 0x18, 0xd2, 0xcd, 0x5f, 0x32, 0x88, 0x0e, 0x35, 0xfd - }; - - private JcaJceExtHelper helper; - - EnvelopedDataHelper(JcaJceExtHelper helper) - { - this.helper = helper; - } - - String getBaseCipherName(ASN1ObjectIdentifier algorithm) - { - String name = (String)BASE_CIPHER_NAMES.get(algorithm); - - if (name == null) - { - return algorithm.getId(); - } - - return name; - } - - Key getJceKey(GenericKey key) - { - if (key.getRepresentation() instanceof Key) - { - return (Key)key.getRepresentation(); - } - - if (key.getRepresentation() instanceof byte[]) - { - return new SecretKeySpec((byte[])key.getRepresentation(), "ENC"); - } - - throw new IllegalArgumentException("unknown generic key type"); - } - - public Key getJceKey(ASN1ObjectIdentifier algorithm, GenericKey key) - { - if (key.getRepresentation() instanceof Key) - { - return (Key)key.getRepresentation(); - } - - if (key.getRepresentation() instanceof byte[]) - { - return new SecretKeySpec((byte[])key.getRepresentation(), getBaseCipherName(algorithm)); - } - - throw new IllegalArgumentException("unknown generic key type"); - } - - public void keySizeCheck(AlgorithmIdentifier keyAlgorithm, Key key) - throws CMSException - { - int expectedKeySize = EnvelopedDataHelper.KEY_SIZE_PROVIDER.getKeySize(keyAlgorithm); - if (expectedKeySize > 0) - { - byte[] keyEnc = null; - - try - { - keyEnc = key.getEncoded(); - } - catch (Exception e) - { - // ignore - we're using a HSM... - } - - if (keyEnc != null) - { - if (keyEnc.length * 8 != expectedKeySize) - { - throw new CMSException("Expected key size for algorithm OID not found in recipient."); - } - } - } - } - - Cipher createCipher(ASN1ObjectIdentifier algorithm) - throws CMSException - { - try - { - String cipherName = (String)CIPHER_ALG_NAMES.get(algorithm); - - if (cipherName != null) - { - try - { - // this is reversed as the Sun policy files now allow unlimited strength RSA - return helper.createCipher(cipherName); - } - catch (NoSuchAlgorithmException e) - { - // Ignore - } - } - return helper.createCipher(algorithm.getId()); - } - catch (Exception e) - { - throw new CMSException("cannot create cipher: " + e.getMessage(), e); - } - } - - Mac createMac(ASN1ObjectIdentifier algorithm) - throws CMSException - { - try - { - String macName = (String)MAC_ALG_NAMES.get(algorithm); - - if (macName != null) - { - try - { - // this is reversed as the Sun policy files now allow unlimited strength RSA - return helper.createMac(macName); - } - catch (NoSuchAlgorithmException e) - { - // Ignore - } - } - return helper.createMac(algorithm.getId()); - } - catch (Exception e) - { - throw new CMSException("cannot create mac: " + e.getMessage(), e); - } - } - - Cipher createRFC3211Wrapper(ASN1ObjectIdentifier algorithm) - throws CMSException - { - String cipherName = (String)BASE_CIPHER_NAMES.get(algorithm); - - if (cipherName == null) - { - throw new CMSException("no name for " + algorithm); - } - - cipherName += "RFC3211Wrap"; - - try - { - return helper.createCipher(cipherName); - } - catch (Exception e) - { - throw new CMSException("cannot create cipher: " + e.getMessage(), e); - } - } - - KeyAgreement createKeyAgreement(ASN1ObjectIdentifier algorithm) - throws CMSException - { - try - { - String agreementName = (String)BASE_CIPHER_NAMES.get(algorithm); - - if (agreementName != null) - { - try - { - // this is reversed as the Sun policy files now allow unlimited strength RSA - return helper.createKeyAgreement(agreementName); - } - catch (NoSuchAlgorithmException e) - { - // Ignore - } - } - return helper.createKeyAgreement(algorithm.getId()); - } - catch (Exception e) - { - throw new CMSException("cannot create key pair generator: " + e.getMessage(), e); - } - } - - AlgorithmParameterGenerator createAlgorithmParameterGenerator(ASN1ObjectIdentifier algorithm) - throws CMSException - { - String algorithmName = (String)BASE_CIPHER_NAMES.get(algorithm); - - try - { - if (algorithmName != null) - { - try - { - // this is reversed as the Sun policy files now allow unlimited strength RSA - return helper.createAlgorithmParameterGenerator(algorithmName); - } - catch (NoSuchAlgorithmException e) - { - // Ignore - } - } - return helper.createAlgorithmParameterGenerator(algorithm.getId()); - } - catch (Exception e) - { - throw new CMSException("cannot create key pair generator: " + e.getMessage(), e); - } - } - - public Cipher createContentCipher(final Key sKey, final AlgorithmIdentifier encryptionAlgID) - throws CMSException - { - return (Cipher)execute(new JCECallback() - { - public Object doInJCE() - throws CMSException, InvalidAlgorithmParameterException, - InvalidKeyException, InvalidParameterSpecException, NoSuchAlgorithmException, - NoSuchPaddingException, NoSuchProviderException - { - Cipher cipher = createCipher(encryptionAlgID.getAlgorithm()); - ASN1Encodable sParams = encryptionAlgID.getParameters(); - String encAlg = encryptionAlgID.getAlgorithm().getId(); - - if (sParams != null && !(sParams instanceof ASN1Null)) - { - try - { - AlgorithmParameters params = createAlgorithmParameters(encryptionAlgID.getAlgorithm()); - - CMSUtils.loadParameters(params, sParams); - - cipher.init(Cipher.DECRYPT_MODE, sKey, params); - } - catch (NoSuchAlgorithmException e) - { - if (encAlg.equals(CMSAlgorithm.DES_CBC.getId()) - || encAlg.equals(CMSEnvelopedDataGenerator.DES_EDE3_CBC) - || encAlg.equals(CMSEnvelopedDataGenerator.IDEA_CBC) - || encAlg.equals(CMSEnvelopedDataGenerator.AES128_CBC) - || encAlg.equals(CMSEnvelopedDataGenerator.AES192_CBC) - || encAlg.equals(CMSEnvelopedDataGenerator.AES256_CBC)) - { - cipher.init(Cipher.DECRYPT_MODE, sKey, new IvParameterSpec( - ASN1OctetString.getInstance(sParams).getOctets())); - } - else - { - throw e; - } - } - } - else - { - if (encAlg.equals(CMSAlgorithm.DES_CBC.getId()) - || encAlg.equals(CMSEnvelopedDataGenerator.DES_EDE3_CBC) - || encAlg.equals(CMSEnvelopedDataGenerator.IDEA_CBC) - || encAlg.equals(CMSEnvelopedDataGenerator.CAST5_CBC)) - { - cipher.init(Cipher.DECRYPT_MODE, sKey, new IvParameterSpec(new byte[8])); - } - else - { - cipher.init(Cipher.DECRYPT_MODE, sKey); - } - } - - return cipher; - } - }); - } - - Mac createContentMac(final Key sKey, final AlgorithmIdentifier macAlgId) - throws CMSException - { - return (Mac)execute(new JCECallback() - { - public Object doInJCE() - throws CMSException, InvalidAlgorithmParameterException, - InvalidKeyException, InvalidParameterSpecException, NoSuchAlgorithmException, - NoSuchPaddingException, NoSuchProviderException - { - Mac mac = createMac(macAlgId.getAlgorithm()); - ASN1Encodable sParams = macAlgId.getParameters(); - String macAlg = macAlgId.getAlgorithm().getId(); - - if (sParams != null && !(sParams instanceof ASN1Null)) - { - try - { - AlgorithmParameters params = createAlgorithmParameters(macAlgId.getAlgorithm()); - - CMSUtils.loadParameters(params, sParams); - - mac.init(sKey, params.getParameterSpec(IvParameterSpec.class)); - } - catch (NoSuchAlgorithmException e) - { - throw e; - } - } - else - { - mac.init(sKey); - } - - return mac; - } - }); - } - - AlgorithmParameters createAlgorithmParameters(ASN1ObjectIdentifier algorithm) - throws NoSuchAlgorithmException, NoSuchProviderException - { - String algorithmName = (String)BASE_CIPHER_NAMES.get(algorithm); - - if (algorithmName != null) - { - try - { - // this is reversed as the Sun policy files now allow unlimited strength RSA - return helper.createAlgorithmParameters(algorithmName); - } - catch (NoSuchAlgorithmException e) - { - // Ignore - } - } - return helper.createAlgorithmParameters(algorithm.getId()); - } - - - KeyPairGenerator createKeyPairGenerator(ASN1ObjectIdentifier algorithm) - throws CMSException - { - try - { - String cipherName = (String)BASE_CIPHER_NAMES.get(algorithm); - - if (cipherName != null) - { - try - { - // this is reversed as the Sun policy files now allow unlimited strength RSA - return helper.createKeyPairGenerator(cipherName); - } - catch (NoSuchAlgorithmException e) - { - // Ignore - } - } - return helper.createKeyPairGenerator(algorithm.getId()); - } - catch (Exception e) - { - throw new CMSException("cannot create key pair generator: " + e.getMessage(), e); - } - } - - public KeyGenerator createKeyGenerator(ASN1ObjectIdentifier algorithm) - throws CMSException - { - try - { - String cipherName = (String)BASE_CIPHER_NAMES.get(algorithm); - - if (cipherName != null) - { - try - { - // this is reversed as the Sun policy files now allow unlimited strength RSA - return helper.createKeyGenerator(cipherName); - } - catch (NoSuchAlgorithmException e) - { - // Ignore - } - } - return helper.createKeyGenerator(algorithm.getId()); - } - catch (Exception e) - { - throw new CMSException("cannot create key generator: " + e.getMessage(), e); - } - } - - AlgorithmParameters generateParameters(ASN1ObjectIdentifier encryptionOID, SecretKey encKey, SecureRandom rand) - throws CMSException - { - try - { - AlgorithmParameterGenerator pGen = createAlgorithmParameterGenerator(encryptionOID); - - if (encryptionOID.equals(CMSAlgorithm.RC2_CBC)) - { - byte[] iv = new byte[8]; - - rand.nextBytes(iv); - - try - { - pGen.init(new RC2ParameterSpec(encKey.getEncoded().length * 8, iv), rand); - } - catch (InvalidAlgorithmParameterException e) - { - throw new CMSException("parameters generation error: " + e, e); - } - } - - return pGen.generateParameters(); - } - catch (Exception e) - { - throw new CMSException("exception creating algorithm parameter generator: " + e, e); - } - } - - AlgorithmIdentifier getAlgorithmIdentifier(ASN1ObjectIdentifier encryptionOID, AlgorithmParameters params) - throws CMSException - { - ASN1Encodable asn1Params; - if (params != null) - { - asn1Params = CMSUtils.extractParameters(params); - } - else - { - asn1Params = DERNull.INSTANCE; - } - - return new AlgorithmIdentifier( - encryptionOID, - asn1Params); - } - - static Object execute(JCECallback callback) throws CMSException - { - try - { - return callback.doInJCE(); - } - catch (NoSuchAlgorithmException e) - { - throw new CMSException("can't find algorithm.", e); - } - catch (InvalidKeyException e) - { - throw new CMSException("key invalid in message.", e); - } - catch (NoSuchProviderException e) - { - throw new CMSException("can't find provider.", e); - } - catch (NoSuchPaddingException e) - { - throw new CMSException("required padding not supported.", e); - } - catch (InvalidAlgorithmParameterException e) - { - throw new CMSException("algorithm parameters invalid.", e); - } - catch (InvalidParameterSpecException e) - { - throw new CMSException("MAC algorithm parameter spec invalid.", e); - } - } - - public KeyFactory createKeyFactory(ASN1ObjectIdentifier algorithm) - throws CMSException - { - try - { - String cipherName = (String)BASE_CIPHER_NAMES.get(algorithm); - - if (cipherName != null) - { - try - { - // this is reversed as the Sun policy files now allow unlimited strength RSA - return helper.createKeyFactory(cipherName); - } - catch (NoSuchAlgorithmException e) - { - // Ignore - } - } - return helper.createKeyFactory(algorithm.getId()); - } - catch (Exception e) - { - throw new CMSException("cannot create key factory: " + e.getMessage(), e); - } - } - - public JceAsymmetricKeyUnwrapper createAsymmetricUnwrapper(AlgorithmIdentifier keyEncryptionAlgorithm, PrivateKey keyEncryptionKey) - { - return helper.createAsymmetricUnwrapper(keyEncryptionAlgorithm, keyEncryptionKey); - } - - public SymmetricKeyUnwrapper createSymmetricUnwrapper(AlgorithmIdentifier keyEncryptionAlgorithm, SecretKey keyEncryptionKey) - { - return helper.createSymmetricUnwrapper(keyEncryptionAlgorithm, keyEncryptionKey); - } - - public AlgorithmIdentifier getAlgorithmIdentifier(ASN1ObjectIdentifier macOID, AlgorithmParameterSpec paramSpec) - { - if (paramSpec instanceof IvParameterSpec) - { - return new AlgorithmIdentifier(macOID, new DEROctetString(((IvParameterSpec)paramSpec).getIV())); - } - - if (paramSpec instanceof RC2ParameterSpec) - { - RC2ParameterSpec rc2Spec = (RC2ParameterSpec)paramSpec; - - int effKeyBits = ((RC2ParameterSpec)paramSpec).getEffectiveKeyBits(); - - if (effKeyBits != -1) - { - int parameterVersion; - - if (effKeyBits < 256) - { - parameterVersion = rc2Table[effKeyBits]; - } - else - { - parameterVersion = effKeyBits; - } - - return new AlgorithmIdentifier(macOID, new RC2CBCParameter(parameterVersion, rc2Spec.getIV())); - } - - return new AlgorithmIdentifier(macOID, new RC2CBCParameter(rc2Spec.getIV())); - } - - throw new IllegalStateException("unknown parameter spec: " + paramSpec); - } - - static interface JCECallback - { - Object doInJCE() - throws CMSException, InvalidAlgorithmParameterException, InvalidKeyException, InvalidParameterSpecException, - NoSuchAlgorithmException, NoSuchPaddingException, NoSuchProviderException; - } -} |