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I had assumed that it was a clover mini. Turns out that it was a regular clover system. Thus, same question below, but with the perspective from the regular station.
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Hello, all.
I have a question regarding the Clover Mini and connection to remote, non-Clover servers.
I am trying to implement a 3rd party service inside my application to store data on a remote database. When I try to negotiate a handshake with the third party's servers, I get the following error:
Caused by: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0x6bffcdf0: Failure in SSL
library, usually a protocol error error:140740B5:SSL routines:SSL23_CLIENT_HELLO:no
ciphers available (external/openssl/ssl/s23_clnt.c:486 0x68474ce0:0x00000000)
After some extensive research on this issue, I have learned that this might be an error in the device's fallback to SSLv3. I have tested my application on my Android Studio emulator and everything works fine; but, when I use the Clover Mini, it throws this error and crashes.
I have been informed that the device (Clover C300) might not be supporting the TLS v1.0 protocol that the servers use. The SDK I am using to connect to the servers has diabled SSLv3 and it uses HttpURLConnection as its default HTTP library.
Here is the full stack trace:
Caused by: com.amazonaws.AmazonClientException: Unable to execute HTTP request: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0x6bffcdf0: Failure in SSL library, usually a protocol error error:140740B5:SSL routines:SSL23_CLIENT_HELLO:no ciphers available (external/openssl/ssl/s23_clnt.c:486 0x68474ce0:0x00000000)
com.amazonaws.http.AmazonHttpClient.executeHelper AmazonHttpClient.java:421
com.amazonaws.http.AmazonHttpClient.execute AmazonHttpClient.java:196
com.amazonaws.services.dynamodbv2.AmazonDynamoDBClient.invoke AmazonDynamoDBClient.java:3257
com.amazonaws.services.dynamodbv2.AmazonDynamoDBClient.getItem AmazonDynamoDBClient.java:904
com.amazonaws.mobileconnectors.dynamodbv2.dynamodbmapper.DynamoDBMapper.load DynamoDBMapper.java:393
com.amazonaws.mobileconnectors.dynamodbv2.dynamodbmapper.DynamoDBMapper.load DynamoDBMapper.java:466
com.amazonaws.mobileconnectors.dynamodbv2.dynamodbmapper.DynamoDBMapper.load DynamoDBMapper.java:340
@@@@.@@@@@.@@@@$@@@@.doInBackground MainActivity.java:1259
@@@@.@@@@@.@@@@$@@@@.doInBackground MainActivity.java:1237
android.os.AsyncTask$2.call AsyncTask.java:288
java.util.concurrent.FutureTask.run FutureTask.java:237
... 4 more
followed by:
Caused by: javax.net.ssl.SSLHandshakeException: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0x6bffcdf0: Failure in SSL library, usually a protocol error error:140740B5:SSL routines:SSL23_CLIENT_HELLO:no ciphers available (external/openssl/ssl/s23_clnt.c:486 0x68474ce0:0x00000000)
com.android.org.conscrypt.NativeCrypto.SSL_do_handshake Native Method
com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake OpenSSLSocketImpl.java:406
com.android.okhttp.Connection.upgradeToTls Connection.java:146
com.android.okhttp.Connection.connect Connection.java:107
com.android.okhttp.internal.http.HttpEngine.connect HttpEngine.java:294
com.android.okhttp.internal.http.HttpEngine.sendSocketRequest HttpEngine.java:255
com.android.okhttp.internal.http.HttpEngine.sendRequest HttpEngine.java:206
com.android.okhttp.internal.http.HttpURLConnectionImpl.execute HttpURLConnectionImpl.java:345
com.android.okhttp.internal.http.HttpURLConnectionImpl.connect HttpURLConnectionImpl.java:89
com.android.okhttp.internal.http.HttpURLConnectionImpl.getOutputStream HttpURLConnectionImpl.java:197
com.android.okhttp.internal.http.HttpsURLConnectionImpl.getOutputStream HttpsURLConnectionImpl.java:254
com.amazonaws.http.UrlHttpClient.writeContentToConnection UrlHttpClient.java:128
com.amazonaws.http.UrlHttpClient.execute UrlHttpClient.java:65
com.amazonaws.http.AmazonHttpClient.executeHelper AmazonHttpClient.java:353
... 14 more
Can anyone make sense of this error I am receiving? Does the Clover Station (C300, Android OS 4.4.2) use SSLv3? Any help would be much appreciated. Thanks!
