Cryptography - CodingTechRoom

⦿How to Implement 256-bit AES Password-Based Encryption in Java

Learn how to implement 256bit AES encryption in Java using your own passkey instead of a KeyGenerator with detailed steps and example code.

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⦿How to Hash a String Using SHA-256 in Java?

Learn how to efficiently hash strings using SHA256 in Java with clear examples and explanations.

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⦿What Are the Differences Between java.util.Random and java.security.SecureRandom in Java?

Explore the differences between java.util.Random and java.security.SecureRandom for generating secure tokens in Java applications.

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⦿Should I Store the Salt When Using bcrypt for Password Hashing?

Explore whether you need to store the salt generated by bcrypt for password hashing and how it works with your security model.

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⦿How to Fix javax.crypto.BadPaddingException: Given Final Block Not Properly Padded in Java Encryption?

Learn how to resolve javax.crypto.BadPaddingException in Java passwordbased encryption with detailed explanations and code examples.

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⦿How to Resolve the 'Could not generate DH keypair' Exception in SSL Handshake?

Learn how to troubleshoot and fix the Could not generate DH keypair exception during the SSL handshake in Java applications.

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⦿How to Encrypt Passwords in Configuration Files for Secure Access

Learn how to securely encrypt and decrypt passwords in configuration files using best practices and established libraries.

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⦿How to Encrypt and Decrypt Images Using AES256 Symmetric Block Cipher in Android?

Learn how to encrypt and decrypt images and files using AES256 in Android with clear examples and best practices.

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⦿Why Choose BouncyCastle Over Java's Built-in JCE Provider?

Discover the advantages of using BouncyCastle over Javas builtin JCE provider including features performance and compatibility.

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⦿How to Decode a SHA-256 Hashed and Base64 Encoded String?

Learn how to decode a SHA256 hashed and base64 encoded string and understand key concepts surrounding hashing for better security practices.

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⦿Resolving java.security.NoSuchProviderException: No Such Provider: BC in Java

Discover why you are encountering java.security.NoSuchProviderException with Bouncy Castle and learn effective solutions to resolve this issue.

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⦿What Are the Optimal Parameters for Scrypt Work Factors in Password Storage?

Discover optimal scrypt parameters N r and p for secure password storage and how they compare to Colin Percivals original app settings.

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⦿Understanding the Differences Between SHA1/RSA Signature and Message Digest in Java

Discover how SHA1 and RSA work in Javas java.security.Signature class vs MessageDigest and Cipher. We explain the differences and provide code examples.

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⦿How Can I Recover an RSA Public Key from a Byte Array?

Learn how to retrieve an RSA public key from a byte array in Java. Stepbystep guide with code snippets and troubleshooting tips.

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⦿How to Register Multiple Keystores in a Single JVM for Different Applications?

Learn how to dynamically manage multiple keystores in one JVM for different applications without modifying their code. Explore effective solutions now.

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⦿How to Hash a String Securely in Android?

Learn how to securely hash strings in Android using builtin libraries ensuring consistent length and secure storage.

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⦿How to List Available Cipher Algorithms in Java?

Learn how to retrieve and list available Cipher algorithms in Java based on your classpath configurations.

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⦿How to Load a Public Certificate from a PEM File in Java?

Learn to extract a public key from a PEM file in Java with proper techniques and avoid common errors.

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⦿Comparing NativePRNG and SHA1PRNG in Java's SecureRandom for Cryptographic Strength

Learn about SecureRandom in Java. Compare NativePRNG and SHA1PRNG algorithms for generating cryptographically strong random numbers.

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⦿How to Properly Cast AndroidKeyStoreRSAPrivateKey to RSAPrivateKey?

Learn how to cast AndroidKeyStoreRSAPrivateKey to RSAPrivateKey in Java with detailed explanations and code examples.

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