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Example 1 with Base64DecoderException

use of jp.sblo.pandora.billing.util.Base64DecoderException in project Jota-Text-Editor-old by jiro-aqua.

the class Security method generatePublicKey.

/**
     * Generates a PublicKey instance from a string containing the
     * Base64-encoded public key.
     *
     * @param encodedPublicKey Base64-encoded public key
     * @throws IllegalArgumentException if encodedPublicKey is invalid
     */
public static PublicKey generatePublicKey(String encodedPublicKey) {
    try {
        byte[] decodedKey = Base64.decode(encodedPublicKey);
        KeyFactory keyFactory = KeyFactory.getInstance(KEY_FACTORY_ALGORITHM);
        return keyFactory.generatePublic(new X509EncodedKeySpec(decodedKey));
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    } catch (InvalidKeySpecException e) {
        Log.e(TAG, "Invalid key specification.");
        throw new IllegalArgumentException(e);
    } catch (Base64DecoderException e) {
        Log.e(TAG, "Base64 decoding failed.");
        throw new IllegalArgumentException(e);
    }
}
Also used : Base64DecoderException(jp.sblo.pandora.billing.util.Base64DecoderException) X509EncodedKeySpec(java.security.spec.X509EncodedKeySpec) NoSuchAlgorithmException(java.security.NoSuchAlgorithmException) InvalidKeySpecException(java.security.spec.InvalidKeySpecException) KeyFactory(java.security.KeyFactory)

Example 2 with Base64DecoderException

use of jp.sblo.pandora.billing.util.Base64DecoderException in project Jota-Text-Editor-old by jiro-aqua.

the class Security method verify.

/**
     * Verifies that the signature from the server matches the computed
     * signature on the data.  Returns true if the data is correctly signed.
     *
     * @param publicKey public key associated with the developer account
     * @param signedData signed data from server
     * @param signature server signature
     * @return true if the data and signature match
     */
public static boolean verify(PublicKey publicKey, String signedData, String signature) {
    if (Consts.DEBUG) {
        Log.i(TAG, "signature: " + signature);
    }
    Signature sig;
    try {
        sig = Signature.getInstance(SIGNATURE_ALGORITHM);
        sig.initVerify(publicKey);
        sig.update(signedData.getBytes());
        if (!sig.verify(Base64.decode(signature))) {
            Log.e(TAG, "Signature verification failed.");
            return false;
        }
        return true;
    } catch (NoSuchAlgorithmException e) {
        Log.e(TAG, "NoSuchAlgorithmException.");
    } catch (InvalidKeyException e) {
        Log.e(TAG, "Invalid key specification.");
    } catch (SignatureException e) {
        Log.e(TAG, "Signature exception.");
    } catch (Base64DecoderException e) {
        Log.e(TAG, "Base64 decoding failed.");
    }
    return false;
}
Also used : Base64DecoderException(jp.sblo.pandora.billing.util.Base64DecoderException) Signature(java.security.Signature) NoSuchAlgorithmException(java.security.NoSuchAlgorithmException) SignatureException(java.security.SignatureException) InvalidKeyException(java.security.InvalidKeyException)

Aggregations

NoSuchAlgorithmException (java.security.NoSuchAlgorithmException)2 Base64DecoderException (jp.sblo.pandora.billing.util.Base64DecoderException)2 InvalidKeyException (java.security.InvalidKeyException)1 KeyFactory (java.security.KeyFactory)1 Signature (java.security.Signature)1 SignatureException (java.security.SignatureException)1 InvalidKeySpecException (java.security.spec.InvalidKeySpecException)1 X509EncodedKeySpec (java.security.spec.X509EncodedKeySpec)1