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8193409: Improve AES supporting classes

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Reviewed-by: valeriep
This commit is contained in:
Adam Petcher 2018-01-23 11:18:11 -05:00
parent 9b54e6d766
commit 412087ff64
5 changed files with 143 additions and 98 deletions
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18
src/java.base/share/classes/com/sun/crypto/provider/DESedeWrapCipher.java
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@ -470,6 +470,9 @@ public final class DESedeWrapCipher extends CipherSpi {
} catch (InvalidKeyException ike) {
// should never happen
throw new RuntimeException("Internal cipher key is corrupted");
} catch (InvalidAlgorithmParameterException iape) {
// should never happen
throw new RuntimeException("Internal cipher IV is invalid");
}
byte[] out2 = new byte[out.length];
cipher.encrypt(out, 0, out.length, out2, 0);
@ -481,6 +484,9 @@ public final class DESedeWrapCipher extends CipherSpi {
} catch (InvalidKeyException ike) {
// should never happen
throw new RuntimeException("Internal cipher key is corrupted");
} catch (InvalidAlgorithmParameterException iape) {
// should never happen
throw new RuntimeException("Internal cipher IV is invalid");
}
return out2;
}
@ -524,8 +530,12 @@ public final class DESedeWrapCipher extends CipherSpi {
}
iv = new byte[IV_LEN];
System.arraycopy(buffer, 0, iv, 0, iv.length);
cipher.init(true, cipherKey.getAlgorithm(), cipherKey.getEncoded(),
try {
cipher.init(true, cipherKey.getAlgorithm(), cipherKey.getEncoded(),
iv);
} catch (InvalidAlgorithmParameterException iape) {
throw new InvalidKeyException("IV in wrapped key is invalid");
}
byte[] buffer2 = new byte[buffer.length - iv.length];
cipher.decrypt(buffer, iv.length, buffer2.length,
buffer2, 0);
@ -538,8 +548,12 @@ public final class DESedeWrapCipher extends CipherSpi {
}
}
// restore cipher state to prior to this call
cipher.init(decrypting, cipherKey.getAlgorithm(),
try {
cipher.init(decrypting, cipherKey.getAlgorithm(),
cipherKey.getEncoded(), IV2);
} catch (InvalidAlgorithmParameterException iape) {
throw new InvalidKeyException("IV in wrapped key is invalid");
}
byte[] out = new byte[keyValLen];
System.arraycopy(buffer2, 0, out, 0, keyValLen);
return ConstructKeys.constructKey(out, wrappedKeyAlgorithm,