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Reduce max apdu length, for compatibility

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This commit is contained in:
Vincent Breitmoser 2018-01-19 17:58:34 +01:00
parent e57c111010
commit bccc20ea32
1 changed files with 3 additions and 1 deletions
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4
OpenKeychain/src/main/java/org/sufficientlysecure/keychain/securitytoken/OpenPgpCommandApduFactory.java
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@ -28,7 +28,9 @@ import org.bouncycastle.util.encoders.Hex;
public class OpenPgpCommandApduFactory {
private static final int MAX_APDU_NC = 255;
// The spec allows 255, but for compatibility with non-compliant tokens we use 254 here
// See https://github.com/open-keychain/open-keychain/issues/2049
private static final int MAX_APDU_NC = 254;
private static final int MAX_APDU_NC_EXT = 65535;
private static final int MAX_APDU_NE = 256;