Q1. What do you understand by the terms encryption and decryption? A1. Encryption is the process of converting clear data (e.g. database password, credit card number, etc) to incomprehensible cyberyext…
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Home › Java & Big Data Interview Q&As › ➡ Java interview › 16+ Java Key Areas Q&As › Archive for Key Area – Security
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12 Kerberos interview Q&As
Q1. What is kerberos? A1. Kerberos is a network authentication protocol designed to provide strong authentication for client/server applications by means of secret-key cryptography. Kerberos ensures the highest level of…
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15 Security key area interview Q&A for Java developers
Q1. Can you provide a high level overview of the “access control security” in a recent application you had worked? A1. As shown below, SiteMinder is configured to intercept the…
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6 Authentication Protocols Interview Q&As – LDAP, Kerberos, OAuth2 & SAML
Q1. Why are there so many security terminologies & standards compared to tradional security systems? A1. In traditional authentication (i.e. identify yourself) / authorisation (i.e. do you have access to…
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6 LDAP Interview Q&As
Q1. What is an LDAP server? And what is it used for in an enterprise environment? A1. LDAP stands for Lightweight Directory Access Protocol. This is an extensible open network…
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AWS Web Application Security Q&As
Below questions are based on the above diagram, and extends AWS Q&As on VPC, Subnets, Availability Zones, VPN, Route tables, NACLs & Security Groups & 15+ AWS Services overview interview…
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Connecting DBeaver to Databases with Kerberos security & SSL
DBeaver is a universal tool to access any database or cloud application that has an ODBC or JDBC Driver such as MySQL, Oracle, Salesforce, Hive, Impala, Teradata, Redshift, Snowflake, etc. SQL Databases like Impala & Hive are secured with Kerberos & SSL. This post discusses how you can access an Impala or Hive database that is secured with Kerberos & SQL security from DBeaver.…
Debugging java.security.cert.CertificateException: Certificates do not conform to algorithm constraints
Why? You may have a certificate with SHA1RSA key size less than 1024 bits or you have a certificate in your chain that uses MD2RSA.
Explanation? MD2 was widely recognized as insecure and thus disabled in Java in version JDK 7 onwards. If you check the “java.security” file under “$JAVA_HOME/jre/lib/security”, you will see a line as shown below.…
Debugging SSL issues in Java & tools to debug
Q1. What are some of the issues you encounter with SSL handshake? A1. Some of the issues you try to debug are Presence of a valid certificate in trust store…
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HTTP Basic Authentication Interview Q&A for Java developers & architects
Q1. What do you understand by the term “HTTP Basic Authentication”? A1. HTTP Basic authentication is the simplest “access controls” technique for web resources like RESTful web service call. It…
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